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zfs/cmd/zpool/zpool_main.c

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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2011, 2016 by Delphix. All rights reserved.
* Copyright (c) 2012 by Frederik Wessels. All rights reserved.
* Copyright (c) 2012 by Cyril Plisko. All rights reserved.
* Copyright (c) 2013 by Prasad Joshi (sTec). All rights reserved.
* Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>.
* Copyright (c) 2017 Datto Inc.
* Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
*/
#include <assert.h>
#include <ctype.h>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <libgen.h>
#include <libintl.h>
#include <libuutil.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
#include <pwd.h>
#include <zone.h>
#include <sys/wait.h>
#include <zfs_prop.h>
#include <sys/fs/zfs.h>
#include <sys/stat.h>
#include <sys/systeminfo.h>
#include <sys/fm/fs/zfs.h>
#include <sys/fm/util.h>
#include <sys/fm/protocol.h>
#include <sys/zfs_ioctl.h>
#include <sys/mount.h>
#include <sys/sysmacros.h>
#include <math.h>
#include <libzfs.h>
#include "zpool_util.h"
#include "zfs_comutil.h"
#include "zfeature_common.h"
#include "statcommon.h"
static int zpool_do_create(int, char **);
static int zpool_do_destroy(int, char **);
static int zpool_do_add(int, char **);
static int zpool_do_remove(int, char **);
static int zpool_do_labelclear(int, char **);
static int zpool_do_list(int, char **);
static int zpool_do_iostat(int, char **);
static int zpool_do_status(int, char **);
static int zpool_do_online(int, char **);
static int zpool_do_offline(int, char **);
static int zpool_do_clear(int, char **);
static int zpool_do_reopen(int, char **);
static int zpool_do_reguid(int, char **);
static int zpool_do_attach(int, char **);
static int zpool_do_detach(int, char **);
static int zpool_do_replace(int, char **);
static int zpool_do_split(int, char **);
static int zpool_do_scrub(int, char **);
static int zpool_do_import(int, char **);
static int zpool_do_export(int, char **);
static int zpool_do_upgrade(int, char **);
static int zpool_do_history(int, char **);
static int zpool_do_events(int, char **);
static int zpool_do_get(int, char **);
static int zpool_do_set(int, char **);
static int zpool_do_sync(int, char **);
/*
* These libumem hooks provide a reasonable set of defaults for the allocator's
* debugging facilities.
*/
#ifdef DEBUG
const char *
_umem_debug_init(void)
{
return ("default,verbose"); /* $UMEM_DEBUG setting */
}
const char *
_umem_logging_init(void)
{
return ("fail,contents"); /* $UMEM_LOGGING setting */
}
#endif
typedef enum {
HELP_ADD,
HELP_ATTACH,
HELP_CLEAR,
HELP_CREATE,
HELP_DESTROY,
HELP_DETACH,
HELP_EXPORT,
HELP_HISTORY,
HELP_IMPORT,
HELP_IOSTAT,
HELP_LABELCLEAR,
HELP_LIST,
HELP_OFFLINE,
HELP_ONLINE,
HELP_REPLACE,
HELP_REMOVE,
HELP_SCRUB,
HELP_STATUS,
HELP_UPGRADE,
HELP_EVENTS,
HELP_GET,
HELP_SET,
HELP_SPLIT,
HELP_SYNC,
HELP_REGUID,
HELP_REOPEN
} zpool_help_t;
/*
* Flags for stats to display with "zpool iostats"
*/
enum iostat_type {
IOS_DEFAULT = 0,
IOS_LATENCY = 1,
IOS_QUEUES = 2,
IOS_L_HISTO = 3,
IOS_RQ_HISTO = 4,
IOS_COUNT, /* always last element */
};
/* iostat_type entries as bitmasks */
#define IOS_DEFAULT_M (1ULL << IOS_DEFAULT)
#define IOS_LATENCY_M (1ULL << IOS_LATENCY)
#define IOS_QUEUES_M (1ULL << IOS_QUEUES)
#define IOS_L_HISTO_M (1ULL << IOS_L_HISTO)
#define IOS_RQ_HISTO_M (1ULL << IOS_RQ_HISTO)
/* Mask of all the histo bits */
#define IOS_ANYHISTO_M (IOS_L_HISTO_M | IOS_RQ_HISTO_M)
/*
* Lookup table for iostat flags to nvlist names. Basically a list
* of all the nvlists a flag requires. Also specifies the order in
* which data gets printed in zpool iostat.
*/
static const char *vsx_type_to_nvlist[IOS_COUNT][11] = {
[IOS_L_HISTO] = {
ZPOOL_CONFIG_VDEV_TOT_R_LAT_HISTO,
ZPOOL_CONFIG_VDEV_TOT_W_LAT_HISTO,
ZPOOL_CONFIG_VDEV_DISK_R_LAT_HISTO,
ZPOOL_CONFIG_VDEV_DISK_W_LAT_HISTO,
ZPOOL_CONFIG_VDEV_SYNC_R_LAT_HISTO,
ZPOOL_CONFIG_VDEV_SYNC_W_LAT_HISTO,
ZPOOL_CONFIG_VDEV_ASYNC_R_LAT_HISTO,
ZPOOL_CONFIG_VDEV_ASYNC_W_LAT_HISTO,
ZPOOL_CONFIG_VDEV_SCRUB_LAT_HISTO,
NULL},
[IOS_LATENCY] = {
ZPOOL_CONFIG_VDEV_TOT_R_LAT_HISTO,
ZPOOL_CONFIG_VDEV_TOT_W_LAT_HISTO,
ZPOOL_CONFIG_VDEV_DISK_R_LAT_HISTO,
ZPOOL_CONFIG_VDEV_DISK_W_LAT_HISTO,
NULL},
[IOS_QUEUES] = {
ZPOOL_CONFIG_VDEV_SYNC_R_ACTIVE_QUEUE,
ZPOOL_CONFIG_VDEV_SYNC_W_ACTIVE_QUEUE,
ZPOOL_CONFIG_VDEV_ASYNC_R_ACTIVE_QUEUE,
ZPOOL_CONFIG_VDEV_ASYNC_W_ACTIVE_QUEUE,
ZPOOL_CONFIG_VDEV_SCRUB_ACTIVE_QUEUE,
NULL},
[IOS_RQ_HISTO] = {
ZPOOL_CONFIG_VDEV_SYNC_IND_R_HISTO,
ZPOOL_CONFIG_VDEV_SYNC_AGG_R_HISTO,
ZPOOL_CONFIG_VDEV_SYNC_IND_W_HISTO,
ZPOOL_CONFIG_VDEV_SYNC_AGG_W_HISTO,
ZPOOL_CONFIG_VDEV_ASYNC_IND_R_HISTO,
ZPOOL_CONFIG_VDEV_ASYNC_AGG_R_HISTO,
ZPOOL_CONFIG_VDEV_ASYNC_IND_W_HISTO,
ZPOOL_CONFIG_VDEV_ASYNC_AGG_W_HISTO,
ZPOOL_CONFIG_VDEV_IND_SCRUB_HISTO,
ZPOOL_CONFIG_VDEV_AGG_SCRUB_HISTO,
NULL},
};
/*
* Given a cb->cb_flags with a histogram bit set, return the iostat_type.
* Right now, only one histo bit is ever set at one time, so we can
* just do a highbit64(a)
*/
#define IOS_HISTO_IDX(a) (highbit64(a & IOS_ANYHISTO_M) - 1)
typedef struct zpool_command {
const char *name;
int (*func)(int, char **);
zpool_help_t usage;
} zpool_command_t;
/*
* Master command table. Each ZFS command has a name, associated function, and
* usage message. The usage messages need to be internationalized, so we have
* to have a function to return the usage message based on a command index.
*
* These commands are organized according to how they are displayed in the usage
* message. An empty command (one with a NULL name) indicates an empty line in
* the generic usage message.
*/
static zpool_command_t command_table[] = {
{ "create", zpool_do_create, HELP_CREATE },
{ "destroy", zpool_do_destroy, HELP_DESTROY },
{ NULL },
{ "add", zpool_do_add, HELP_ADD },
{ "remove", zpool_do_remove, HELP_REMOVE },
{ NULL },
{ "labelclear", zpool_do_labelclear, HELP_LABELCLEAR },
{ NULL },
{ "list", zpool_do_list, HELP_LIST },
{ "iostat", zpool_do_iostat, HELP_IOSTAT },
{ "status", zpool_do_status, HELP_STATUS },
{ NULL },
{ "online", zpool_do_online, HELP_ONLINE },
{ "offline", zpool_do_offline, HELP_OFFLINE },
{ "clear", zpool_do_clear, HELP_CLEAR },
{ "reopen", zpool_do_reopen, HELP_REOPEN },
{ NULL },
{ "attach", zpool_do_attach, HELP_ATTACH },
{ "detach", zpool_do_detach, HELP_DETACH },
{ "replace", zpool_do_replace, HELP_REPLACE },
{ "split", zpool_do_split, HELP_SPLIT },
{ NULL },
{ "scrub", zpool_do_scrub, HELP_SCRUB },
{ NULL },
{ "import", zpool_do_import, HELP_IMPORT },
{ "export", zpool_do_export, HELP_EXPORT },
{ "upgrade", zpool_do_upgrade, HELP_UPGRADE },
{ "reguid", zpool_do_reguid, HELP_REGUID },
{ NULL },
{ "history", zpool_do_history, HELP_HISTORY },
{ "events", zpool_do_events, HELP_EVENTS },
{ NULL },
{ "get", zpool_do_get, HELP_GET },
{ "set", zpool_do_set, HELP_SET },
{ "sync", zpool_do_sync, HELP_SYNC },
};
#define NCOMMAND (ARRAY_SIZE(command_table))
static zpool_command_t *current_command;
static char history_str[HIS_MAX_RECORD_LEN];
static boolean_t log_history = B_TRUE;
static uint_t timestamp_fmt = NODATE;
static const char *
get_usage(zpool_help_t idx)
{
switch (idx) {
case HELP_ADD:
return (gettext("\tadd [-fgLnP] [-o property=value] "
"<pool> <vdev> ...\n"));
case HELP_ATTACH:
return (gettext("\tattach [-f] [-o property=value] "
"<pool> <device> <new-device>\n"));
case HELP_CLEAR:
return (gettext("\tclear [-nF] <pool> [device]\n"));
case HELP_CREATE:
return (gettext("\tcreate [-fnd] [-o property=value] ... \n"
"\t [-O file-system-property=value] ... \n"
"\t [-m mountpoint] [-R root] <pool> <vdev> ...\n"));
case HELP_DESTROY:
return (gettext("\tdestroy [-f] <pool>\n"));
case HELP_DETACH:
return (gettext("\tdetach <pool> <device>\n"));
case HELP_EXPORT:
return (gettext("\texport [-af] <pool> ...\n"));
case HELP_HISTORY:
return (gettext("\thistory [-il] [<pool>] ...\n"));
case HELP_IMPORT:
return (gettext("\timport [-d dir] [-D]\n"
"\timport [-d dir | -c cachefile] [-F [-n]] [-l] "
"<pool | id>\n"
"\timport [-o mntopts] [-o property=value] ... \n"
"\t [-d dir | -c cachefile] [-D] [-l] [-f] [-m] [-N] "
"[-R root] [-F [-n]] -a\n"
"\timport [-o mntopts] [-o property=value] ... \n"
"\t [-d dir | -c cachefile] [-D] [-l] [-f] [-m] [-N] "
"[-R root] [-F [-n]]\n"
"\t <pool | id> [newpool]\n"));
case HELP_IOSTAT:
return (gettext("\tiostat [[[-c [script1,script2,...]"
"[-lq]]|[-rw]] [-T d | u] [-ghHLpPvy]\n"
"\t [[pool ...]|[pool vdev ...]|[vdev ...]]"
" [interval [count]]\n"));
case HELP_LABELCLEAR:
return (gettext("\tlabelclear [-f] <vdev>\n"));
case HELP_LIST:
return (gettext("\tlist [-gHLpPv] [-o property[,...]] "
"[-T d|u] [pool] ... \n"
"\t [interval [count]]\n"));
case HELP_OFFLINE:
return (gettext("\toffline [-f] [-t] <pool> <device> ...\n"));
case HELP_ONLINE:
return (gettext("\tonline <pool> <device> ...\n"));
case HELP_REPLACE:
return (gettext("\treplace [-f] [-o property=value] "
"<pool> <device> [new-device]\n"));
case HELP_REMOVE:
return (gettext("\tremove <pool> <device> ...\n"));
case HELP_REOPEN:
return (gettext("\treopen [-n] <pool>\n"));
case HELP_SCRUB:
return (gettext("\tscrub [-s | -p] <pool> ...\n"));
case HELP_STATUS:
return (gettext("\tstatus [-c [script1,script2,...]] [-gLPvxD]"
"[-T d|u] [pool] ... \n"
"\t [interval [count]]\n"));
case HELP_UPGRADE:
return (gettext("\tupgrade\n"
"\tupgrade -v\n"
"\tupgrade [-V version] <-a | pool ...>\n"));
case HELP_EVENTS:
return (gettext("\tevents [-vHf [pool] | -c]\n"));
case HELP_GET:
return (gettext("\tget [-Hp] [-o \"all\" | field[,...]] "
"<\"all\" | property[,...]> <pool> ...\n"));
case HELP_SET:
return (gettext("\tset <property=value> <pool> \n"));
case HELP_SPLIT:
return (gettext("\tsplit [-gLnPl] [-R altroot] [-o mntopts]\n"
"\t [-o property=value] <pool> <newpool> "
"[<device> ...]\n"));
case HELP_REGUID:
return (gettext("\treguid <pool>\n"));
case HELP_SYNC:
return (gettext("\tsync [pool] ...\n"));
}
abort();
/* NOTREACHED */
}
/*
* Callback routine that will print out a pool property value.
*/
static int
print_prop_cb(int prop, void *cb)
{
FILE *fp = cb;
(void) fprintf(fp, "\t%-15s ", zpool_prop_to_name(prop));
if (zpool_prop_readonly(prop))
(void) fprintf(fp, " NO ");
else
(void) fprintf(fp, " YES ");
if (zpool_prop_values(prop) == NULL)
(void) fprintf(fp, "-\n");
else
(void) fprintf(fp, "%s\n", zpool_prop_values(prop));
return (ZPROP_CONT);
}
/*
* Display usage message. If we're inside a command, display only the usage for
* that command. Otherwise, iterate over the entire command table and display
* a complete usage message.
*/
void
usage(boolean_t requested)
{
FILE *fp = requested ? stdout : stderr;
if (current_command == NULL) {
int i;
(void) fprintf(fp, gettext("usage: zpool command args ...\n"));
(void) fprintf(fp,
gettext("where 'command' is one of the following:\n\n"));
for (i = 0; i < NCOMMAND; i++) {
if (command_table[i].name == NULL)
(void) fprintf(fp, "\n");
else
(void) fprintf(fp, "%s",
get_usage(command_table[i].usage));
}
} else {
(void) fprintf(fp, gettext("usage:\n"));
(void) fprintf(fp, "%s", get_usage(current_command->usage));
}
if (current_command != NULL &&
((strcmp(current_command->name, "set") == 0) ||
(strcmp(current_command->name, "get") == 0) ||
(strcmp(current_command->name, "list") == 0))) {
(void) fprintf(fp,
gettext("\nthe following properties are supported:\n"));
(void) fprintf(fp, "\n\t%-15s %s %s\n\n",
"PROPERTY", "EDIT", "VALUES");
/* Iterate over all properties */
(void) zprop_iter(print_prop_cb, fp, B_FALSE, B_TRUE,
ZFS_TYPE_POOL);
(void) fprintf(fp, "\t%-15s ", "feature@...");
(void) fprintf(fp, "YES disabled | enabled | active\n");
(void) fprintf(fp, gettext("\nThe feature@ properties must be "
"appended with a feature name.\nSee zpool-features(5).\n"));
}
/*
* See comments at end of main().
*/
if (getenv("ZFS_ABORT") != NULL) {
(void) printf("dumping core by request\n");
abort();
}
exit(requested ? 0 : 2);
}
void
print_vdev_tree(zpool_handle_t *zhp, const char *name, nvlist_t *nv, int indent,
boolean_t print_logs, int name_flags)
{
nvlist_t **child;
uint_t c, children;
char *vname;
if (name != NULL)
(void) printf("\t%*s%s\n", indent, "", name);
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
&child, &children) != 0)
return;
for (c = 0; c < children; c++) {
uint64_t is_log = B_FALSE;
(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
&is_log);
if ((is_log && !print_logs) || (!is_log && print_logs))
continue;
vname = zpool_vdev_name(g_zfs, zhp, child[c], name_flags);
print_vdev_tree(zhp, vname, child[c], indent + 2,
B_FALSE, name_flags);
free(vname);
}
}
static boolean_t
prop_list_contains_feature(nvlist_t *proplist)
{
nvpair_t *nvp;
for (nvp = nvlist_next_nvpair(proplist, NULL); NULL != nvp;
nvp = nvlist_next_nvpair(proplist, nvp)) {
if (zpool_prop_feature(nvpair_name(nvp)))
return (B_TRUE);
}
return (B_FALSE);
}
/*
* Add a property pair (name, string-value) into a property nvlist.
*/
static int
add_prop_list(const char *propname, char *propval, nvlist_t **props,
boolean_t poolprop)
{
zpool_prop_t prop = ZPOOL_PROP_INVAL;
zfs_prop_t fprop;
nvlist_t *proplist;
const char *normnm;
char *strval;
if (*props == NULL &&
nvlist_alloc(props, NV_UNIQUE_NAME, 0) != 0) {
(void) fprintf(stderr,
gettext("internal error: out of memory\n"));
return (1);
}
proplist = *props;
if (poolprop) {
const char *vname = zpool_prop_to_name(ZPOOL_PROP_VERSION);
if ((prop = zpool_name_to_prop(propname)) == ZPOOL_PROP_INVAL &&
!zpool_prop_feature(propname)) {
(void) fprintf(stderr, gettext("property '%s' is "
"not a valid pool property\n"), propname);
return (2);
}
/*
* feature@ properties and version should not be specified
* at the same time.
*/
if ((prop == ZPOOL_PROP_INVAL && zpool_prop_feature(propname) &&
nvlist_exists(proplist, vname)) ||
(prop == ZPOOL_PROP_VERSION &&
prop_list_contains_feature(proplist))) {
(void) fprintf(stderr, gettext("'feature@' and "
"'version' properties cannot be specified "
"together\n"));
return (2);
}
if (zpool_prop_feature(propname))
normnm = propname;
else
normnm = zpool_prop_to_name(prop);
} else {
if ((fprop = zfs_name_to_prop(propname)) != ZPROP_INVAL) {
normnm = zfs_prop_to_name(fprop);
} else {
normnm = propname;
}
}
if (nvlist_lookup_string(proplist, normnm, &strval) == 0 &&
prop != ZPOOL_PROP_CACHEFILE) {
(void) fprintf(stderr, gettext("property '%s' "
"specified multiple times\n"), propname);
return (2);
}
if (nvlist_add_string(proplist, normnm, propval) != 0) {
(void) fprintf(stderr, gettext("internal "
"error: out of memory\n"));
return (1);
}
return (0);
}
/*
* Set a default property pair (name, string-value) in a property nvlist
*/
static int
add_prop_list_default(const char *propname, char *propval, nvlist_t **props,
boolean_t poolprop)
{
char *pval;
if (nvlist_lookup_string(*props, propname, &pval) == 0)
return (0);
return (add_prop_list(propname, propval, props, B_TRUE));
}
/*
* zpool add [-fgLnP] [-o property=value] <pool> <vdev> ...
*
* -f Force addition of devices, even if they appear in use
* -g Display guid for individual vdev name.
* -L Follow links when resolving vdev path name.
* -n Do not add the devices, but display the resulting layout if
* they were to be added.
* -o Set property=value.
* -P Display full path for vdev name.
*
* Adds the given vdevs to 'pool'. As with create, the bulk of this work is
* handled by get_vdev_spec(), which constructs the nvlist needed to pass to
* libzfs.
*/
int
zpool_do_add(int argc, char **argv)
{
boolean_t force = B_FALSE;
boolean_t dryrun = B_FALSE;
int name_flags = 0;
int c;
nvlist_t *nvroot;
char *poolname;
int ret;
zpool_handle_t *zhp;
nvlist_t *config;
nvlist_t *props = NULL;
char *propval;
/* check options */
while ((c = getopt(argc, argv, "fgLno:P")) != -1) {
switch (c) {
case 'f':
force = B_TRUE;
break;
case 'g':
name_flags |= VDEV_NAME_GUID;
break;
case 'L':
name_flags |= VDEV_NAME_FOLLOW_LINKS;
break;
case 'n':
dryrun = B_TRUE;
break;
case 'o':
if ((propval = strchr(optarg, '=')) == NULL) {
(void) fprintf(stderr, gettext("missing "
"'=' for -o option\n"));
usage(B_FALSE);
}
*propval = '\0';
propval++;
if ((strcmp(optarg, ZPOOL_CONFIG_ASHIFT) != 0) ||
(add_prop_list(optarg, propval, &props, B_TRUE)))
usage(B_FALSE);
break;
case 'P':
name_flags |= VDEV_NAME_PATH;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
/* get pool name and check number of arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name argument\n"));
usage(B_FALSE);
}
if (argc < 2) {
(void) fprintf(stderr, gettext("missing vdev specification\n"));
usage(B_FALSE);
}
poolname = argv[0];
argc--;
argv++;
if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
return (1);
if ((config = zpool_get_config(zhp, NULL)) == NULL) {
(void) fprintf(stderr, gettext("pool '%s' is unavailable\n"),
poolname);
zpool_close(zhp);
return (1);
}
/* unless manually specified use "ashift" pool property (if set) */
if (!nvlist_exists(props, ZPOOL_CONFIG_ASHIFT)) {
int intval;
zprop_source_t src;
char strval[ZPOOL_MAXPROPLEN];
intval = zpool_get_prop_int(zhp, ZPOOL_PROP_ASHIFT, &src);
if (src != ZPROP_SRC_DEFAULT) {
(void) sprintf(strval, "%" PRId32, intval);
verify(add_prop_list(ZPOOL_CONFIG_ASHIFT, strval,
&props, B_TRUE) == 0);
}
}
/* pass off to get_vdev_spec for processing */
nvroot = make_root_vdev(zhp, props, force, !force, B_FALSE, dryrun,
argc, argv);
if (nvroot == NULL) {
zpool_close(zhp);
return (1);
}
if (dryrun) {
nvlist_t *poolnvroot;
nvlist_t **l2child;
uint_t l2children, c;
char *vname;
boolean_t hadcache = B_FALSE;
verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
&poolnvroot) == 0);
(void) printf(gettext("would update '%s' to the following "
"configuration:\n"), zpool_get_name(zhp));
/* print original main pool and new tree */
print_vdev_tree(zhp, poolname, poolnvroot, 0, B_FALSE,
name_flags);
print_vdev_tree(zhp, NULL, nvroot, 0, B_FALSE, name_flags);
/* Do the same for the logs */
if (num_logs(poolnvroot) > 0) {
print_vdev_tree(zhp, "logs", poolnvroot, 0, B_TRUE,
name_flags);
print_vdev_tree(zhp, NULL, nvroot, 0, B_TRUE,
name_flags);
} else if (num_logs(nvroot) > 0) {
print_vdev_tree(zhp, "logs", nvroot, 0, B_TRUE,
name_flags);
}
/* Do the same for the caches */
if (nvlist_lookup_nvlist_array(poolnvroot, ZPOOL_CONFIG_L2CACHE,
&l2child, &l2children) == 0 && l2children) {
hadcache = B_TRUE;
(void) printf(gettext("\tcache\n"));
for (c = 0; c < l2children; c++) {
vname = zpool_vdev_name(g_zfs, NULL,
l2child[c], name_flags);
(void) printf("\t %s\n", vname);
free(vname);
}
}
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
&l2child, &l2children) == 0 && l2children) {
if (!hadcache)
(void) printf(gettext("\tcache\n"));
for (c = 0; c < l2children; c++) {
vname = zpool_vdev_name(g_zfs, NULL,
l2child[c], name_flags);
(void) printf("\t %s\n", vname);
free(vname);
}
}
ret = 0;
} else {
ret = (zpool_add(zhp, nvroot) != 0);
}
nvlist_free(props);
nvlist_free(nvroot);
zpool_close(zhp);
return (ret);
}
/*
* zpool remove <pool> <vdev> ...
*
* Removes the given vdev from the pool. Currently, this supports removing
* spares, cache, and log devices from the pool.
*/
int
zpool_do_remove(int argc, char **argv)
{
char *poolname;
int i, ret = 0;
zpool_handle_t *zhp = NULL;
argc--;
argv++;
/* get pool name and check number of arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name argument\n"));
usage(B_FALSE);
}
if (argc < 2) {
(void) fprintf(stderr, gettext("missing device\n"));
usage(B_FALSE);
}
poolname = argv[0];
if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
return (1);
for (i = 1; i < argc; i++) {
if (zpool_vdev_remove(zhp, argv[i]) != 0)
ret = 1;
}
zpool_close(zhp);
return (ret);
}
/*
* zpool labelclear [-f] <vdev>
*
* -f Force clearing the label for the vdevs which are members of
* the exported or foreign pools.
*
* Verifies that the vdev is not active and zeros out the label information
* on the device.
*/
int
zpool_do_labelclear(int argc, char **argv)
{
char vdev[MAXPATHLEN];
char *name = NULL;
struct stat st;
int c, fd = -1, ret = 0;
nvlist_t *config;
pool_state_t state;
boolean_t inuse = B_FALSE;
boolean_t force = B_FALSE;
/* check options */
while ((c = getopt(argc, argv, "f")) != -1) {
switch (c) {
case 'f':
force = B_TRUE;
break;
default:
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
/* get vdev name */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing vdev name\n"));
usage(B_FALSE);
}
if (argc > 1) {
(void) fprintf(stderr, gettext("too many arguments\n"));
usage(B_FALSE);
}
/*
* Check if we were given absolute path and use it as is.
* Otherwise if the provided vdev name doesn't point to a file,
* try prepending expected disk paths and partition numbers.
*/
(void) strlcpy(vdev, argv[0], sizeof (vdev));
if (vdev[0] != '/' && stat(vdev, &st) != 0) {
int error;
error = zfs_resolve_shortname(argv[0], vdev, MAXPATHLEN);
if (error == 0 && zfs_dev_is_whole_disk(vdev)) {
if (zfs_append_partition(vdev, MAXPATHLEN) == -1)
error = ENOENT;
}
if (error || (stat(vdev, &st) != 0)) {
(void) fprintf(stderr, gettext(
"failed to find device %s, try specifying absolute "
"path instead\n"), argv[0]);
return (1);
}
}
if ((fd = open(vdev, O_RDWR)) < 0) {
(void) fprintf(stderr, gettext("failed to open %s: %s\n"),
vdev, strerror(errno));
return (1);
}
if (ioctl(fd, BLKFLSBUF) != 0)
(void) fprintf(stderr, gettext("failed to invalidate "
"cache for %s: %s\n"), vdev, strerror(errno));
if (zpool_read_label(fd, &config, NULL) != 0 || config == NULL) {
(void) fprintf(stderr,
gettext("failed to check state for %s\n"), vdev);
ret = 1;
goto errout;
}
nvlist_free(config);
ret = zpool_in_use(g_zfs, fd, &state, &name, &inuse);
if (ret != 0) {
(void) fprintf(stderr,
gettext("failed to check state for %s\n"), vdev);
ret = 1;
goto errout;
}
if (!inuse)
goto wipe_label;
switch (state) {
default:
case POOL_STATE_ACTIVE:
case POOL_STATE_SPARE:
case POOL_STATE_L2CACHE:
(void) fprintf(stderr, gettext(
"%s is a member (%s) of pool \"%s\"\n"),
vdev, zpool_pool_state_to_name(state), name);
ret = 1;
goto errout;
case POOL_STATE_EXPORTED:
if (force)
break;
(void) fprintf(stderr, gettext(
"use '-f' to override the following error:\n"
"%s is a member of exported pool \"%s\"\n"),
vdev, name);
ret = 1;
goto errout;
case POOL_STATE_POTENTIALLY_ACTIVE:
if (force)
break;
(void) fprintf(stderr, gettext(
"use '-f' to override the following error:\n"
"%s is a member of potentially active pool \"%s\"\n"),
vdev, name);
ret = 1;
goto errout;
case POOL_STATE_DESTROYED:
/* inuse should never be set for a destroyed pool */
assert(0);
break;
}
wipe_label:
ret = zpool_clear_label(fd);
if (ret != 0) {
(void) fprintf(stderr,
gettext("failed to clear label for %s\n"), vdev);
}
errout:
free(name);
(void) close(fd);
return (ret);
}
/*
* zpool create [-fnd] [-o property=value] ...
* [-O file-system-property=value] ...
* [-R root] [-m mountpoint] <pool> <dev> ...
*
* -f Force creation, even if devices appear in use
* -n Do not create the pool, but display the resulting layout if it
* were to be created.
* -R Create a pool under an alternate root
* -m Set default mountpoint for the root dataset. By default it's
* '/<pool>'
* -o Set property=value.
* -o Set feature@feature=enabled|disabled.
* -d Don't automatically enable all supported pool features
* (individual features can be enabled with -o).
* -O Set fsproperty=value in the pool's root file system
*
* Creates the named pool according to the given vdev specification. The
* bulk of the vdev processing is done in get_vdev_spec() in zpool_vdev.c. Once
* we get the nvlist back from get_vdev_spec(), we either print out the contents
* (if '-n' was specified), or pass it to libzfs to do the creation.
*/
int
zpool_do_create(int argc, char **argv)
{
boolean_t force = B_FALSE;
boolean_t dryrun = B_FALSE;
boolean_t enable_all_pool_feat = B_TRUE;
int c;
nvlist_t *nvroot = NULL;
char *poolname;
char *tname = NULL;
int ret = 1;
char *altroot = NULL;
char *mountpoint = NULL;
nvlist_t *fsprops = NULL;
nvlist_t *props = NULL;
char *propval;
/* check options */
while ((c = getopt(argc, argv, ":fndR:m:o:O:t:")) != -1) {
switch (c) {
case 'f':
force = B_TRUE;
break;
case 'n':
dryrun = B_TRUE;
break;
case 'd':
enable_all_pool_feat = B_FALSE;
break;
case 'R':
altroot = optarg;
if (add_prop_list(zpool_prop_to_name(
ZPOOL_PROP_ALTROOT), optarg, &props, B_TRUE))
goto errout;
if (add_prop_list_default(zpool_prop_to_name(
ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
goto errout;
break;
case 'm':
/* Equivalent to -O mountpoint=optarg */
mountpoint = optarg;
break;
case 'o':
if ((propval = strchr(optarg, '=')) == NULL) {
(void) fprintf(stderr, gettext("missing "
"'=' for -o option\n"));
goto errout;
}
*propval = '\0';
propval++;
if (add_prop_list(optarg, propval, &props, B_TRUE))
goto errout;
/*
* If the user is creating a pool that doesn't support
* feature flags, don't enable any features.
*/
if (zpool_name_to_prop(optarg) == ZPOOL_PROP_VERSION) {
char *end;
u_longlong_t ver;
ver = strtoull(propval, &end, 10);
if (*end == '\0' &&
ver < SPA_VERSION_FEATURES) {
enable_all_pool_feat = B_FALSE;
}
}
if (zpool_name_to_prop(optarg) == ZPOOL_PROP_ALTROOT)
altroot = propval;
break;
case 'O':
if ((propval = strchr(optarg, '=')) == NULL) {
(void) fprintf(stderr, gettext("missing "
"'=' for -O option\n"));
goto errout;
}
*propval = '\0';
propval++;
/*
* Mountpoints are checked and then added later.
* Uniquely among properties, they can be specified
* more than once, to avoid conflict with -m.
*/
if (0 == strcmp(optarg,
zfs_prop_to_name(ZFS_PROP_MOUNTPOINT))) {
mountpoint = propval;
} else if (add_prop_list(optarg, propval, &fsprops,
B_FALSE)) {
goto errout;
}
break;
case 't':
/*
* Sanity check temporary pool name.
*/
if (strchr(optarg, '/') != NULL) {
(void) fprintf(stderr, gettext("cannot create "
"'%s': invalid character '/' in temporary "
"name\n"), optarg);
(void) fprintf(stderr, gettext("use 'zfs "
"create' to create a dataset\n"));
goto errout;
}
if (add_prop_list(zpool_prop_to_name(
ZPOOL_PROP_TNAME), optarg, &props, B_TRUE))
goto errout;
if (add_prop_list_default(zpool_prop_to_name(
ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
goto errout;
tname = optarg;
break;
case ':':
(void) fprintf(stderr, gettext("missing argument for "
"'%c' option\n"), optopt);
goto badusage;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
goto badusage;
}
}
argc -= optind;
argv += optind;
/* get pool name and check number of arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name argument\n"));
goto badusage;
}
if (argc < 2) {
(void) fprintf(stderr, gettext("missing vdev specification\n"));
goto badusage;
}
poolname = argv[0];
/*
* As a special case, check for use of '/' in the name, and direct the
* user to use 'zfs create' instead.
*/
if (strchr(poolname, '/') != NULL) {
(void) fprintf(stderr, gettext("cannot create '%s': invalid "
"character '/' in pool name\n"), poolname);
(void) fprintf(stderr, gettext("use 'zfs create' to "
"create a dataset\n"));
goto errout;
}
/* pass off to get_vdev_spec for bulk processing */
nvroot = make_root_vdev(NULL, props, force, !force, B_FALSE, dryrun,
argc - 1, argv + 1);
if (nvroot == NULL)
goto errout;
/* make_root_vdev() allows 0 toplevel children if there are spares */
if (!zfs_allocatable_devs(nvroot)) {
(void) fprintf(stderr, gettext("invalid vdev "
"specification: at least one toplevel vdev must be "
"specified\n"));
goto errout;
}
if (altroot != NULL && altroot[0] != '/') {
(void) fprintf(stderr, gettext("invalid alternate root '%s': "
"must be an absolute path\n"), altroot);
goto errout;
}
/*
* Check the validity of the mountpoint and direct the user to use the
* '-m' mountpoint option if it looks like its in use.
*/
if (mountpoint == NULL ||
(strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) != 0 &&
strcmp(mountpoint, ZFS_MOUNTPOINT_NONE) != 0)) {
char buf[MAXPATHLEN];
DIR *dirp;
if (mountpoint && mountpoint[0] != '/') {
(void) fprintf(stderr, gettext("invalid mountpoint "
"'%s': must be an absolute path, 'legacy', or "
"'none'\n"), mountpoint);
goto errout;
}
if (mountpoint == NULL) {
if (altroot != NULL)
(void) snprintf(buf, sizeof (buf), "%s/%s",
altroot, poolname);
else
(void) snprintf(buf, sizeof (buf), "/%s",
poolname);
} else {
if (altroot != NULL)
(void) snprintf(buf, sizeof (buf), "%s%s",
altroot, mountpoint);
else
(void) snprintf(buf, sizeof (buf), "%s",
mountpoint);
}
if ((dirp = opendir(buf)) == NULL && errno != ENOENT) {
(void) fprintf(stderr, gettext("mountpoint '%s' : "
"%s\n"), buf, strerror(errno));
(void) fprintf(stderr, gettext("use '-m' "
"option to provide a different default\n"));
goto errout;
} else if (dirp) {
int count = 0;
while (count < 3 && readdir(dirp) != NULL)
count++;
(void) closedir(dirp);
if (count > 2) {
(void) fprintf(stderr, gettext("mountpoint "
"'%s' exists and is not empty\n"), buf);
(void) fprintf(stderr, gettext("use '-m' "
"option to provide a "
"different default\n"));
goto errout;
}
}
}
/*
* Now that the mountpoint's validity has been checked, ensure that
* the property is set appropriately prior to creating the pool.
*/
if (mountpoint != NULL) {
ret = add_prop_list(zfs_prop_to_name(ZFS_PROP_MOUNTPOINT),
mountpoint, &fsprops, B_FALSE);
if (ret != 0)
goto errout;
}
ret = 1;
if (dryrun) {
/*
* For a dry run invocation, print out a basic message and run
* through all the vdevs in the list and print out in an
* appropriate hierarchy.
*/
(void) printf(gettext("would create '%s' with the "
"following layout:\n\n"), poolname);
print_vdev_tree(NULL, poolname, nvroot, 0, B_FALSE, 0);
if (num_logs(nvroot) > 0)
print_vdev_tree(NULL, "logs", nvroot, 0, B_TRUE, 0);
ret = 0;
} else {
/*
* Hand off to libzfs.
*/
spa_feature_t i;
for (i = 0; i < SPA_FEATURES; i++) {
char propname[MAXPATHLEN];
char *propval;
zfeature_info_t *feat = &spa_feature_table[i];
(void) snprintf(propname, sizeof (propname),
"feature@%s", feat->fi_uname);
/*
* Only features contained in props will be enabled:
* remove from the nvlist every ZFS_FEATURE_DISABLED
* value and add every missing ZFS_FEATURE_ENABLED if
* enable_all_pool_feat is set.
*/
if (!nvlist_lookup_string(props, propname, &propval)) {
if (strcmp(propval, ZFS_FEATURE_DISABLED) == 0)
(void) nvlist_remove_all(props,
propname);
} else if (enable_all_pool_feat) {
ret = add_prop_list(propname,
ZFS_FEATURE_ENABLED, &props, B_TRUE);
if (ret != 0)
goto errout;
}
}
ret = 1;
if (zpool_create(g_zfs, poolname,
nvroot, props, fsprops) == 0) {
zfs_handle_t *pool = zfs_open(g_zfs,
tname ? tname : poolname, ZFS_TYPE_FILESYSTEM);
if (pool != NULL) {
if (zfs_mount(pool, NULL, 0) == 0)
ret = zfs_shareall(pool);
zfs_close(pool);
}
} else if (libzfs_errno(g_zfs) == EZFS_INVALIDNAME) {
(void) fprintf(stderr, gettext("pool name may have "
"been omitted\n"));
}
}
errout:
nvlist_free(nvroot);
nvlist_free(fsprops);
nvlist_free(props);
return (ret);
badusage:
nvlist_free(fsprops);
nvlist_free(props);
usage(B_FALSE);
return (2);
}
/*
* zpool destroy <pool>
*
* -f Forcefully unmount any datasets
*
* Destroy the given pool. Automatically unmounts any datasets in the pool.
*/
int
zpool_do_destroy(int argc, char **argv)
{
boolean_t force = B_FALSE;
int c;
char *pool;
zpool_handle_t *zhp;
int ret;
/* check options */
while ((c = getopt(argc, argv, "f")) != -1) {
switch (c) {
case 'f':
force = B_TRUE;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
/* check arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool argument\n"));
usage(B_FALSE);
}
if (argc > 1) {
(void) fprintf(stderr, gettext("too many arguments\n"));
usage(B_FALSE);
}
pool = argv[0];
if ((zhp = zpool_open_canfail(g_zfs, pool)) == NULL) {
/*
* As a special case, check for use of '/' in the name, and
* direct the user to use 'zfs destroy' instead.
*/
if (strchr(pool, '/') != NULL)
(void) fprintf(stderr, gettext("use 'zfs destroy' to "
"destroy a dataset\n"));
return (1);
}
if (zpool_disable_datasets(zhp, force) != 0) {
(void) fprintf(stderr, gettext("could not destroy '%s': "
"could not unmount datasets\n"), zpool_get_name(zhp));
zpool_close(zhp);
return (1);
}
/* The history must be logged as part of the export */
log_history = B_FALSE;
ret = (zpool_destroy(zhp, history_str) != 0);
zpool_close(zhp);
return (ret);
}
typedef struct export_cbdata {
boolean_t force;
boolean_t hardforce;
} export_cbdata_t;
/*
* Export one pool
*/
int
zpool_export_one(zpool_handle_t *zhp, void *data)
{
export_cbdata_t *cb = data;
if (zpool_disable_datasets(zhp, cb->force) != 0)
return (1);
/* The history must be logged as part of the export */
log_history = B_FALSE;
if (cb->hardforce) {
if (zpool_export_force(zhp, history_str) != 0)
return (1);
} else if (zpool_export(zhp, cb->force, history_str) != 0) {
return (1);
}
return (0);
}
/*
* zpool export [-f] <pool> ...
*
* -a Export all pools
* -f Forcefully unmount datasets
*
* Export the given pools. By default, the command will attempt to cleanly
* unmount any active datasets within the pool. If the '-f' flag is specified,
* then the datasets will be forcefully unmounted.
*/
int
zpool_do_export(int argc, char **argv)
{
export_cbdata_t cb;
boolean_t do_all = B_FALSE;
boolean_t force = B_FALSE;
boolean_t hardforce = B_FALSE;
int c, ret;
/* check options */
while ((c = getopt(argc, argv, "afF")) != -1) {
switch (c) {
case 'a':
do_all = B_TRUE;
break;
case 'f':
force = B_TRUE;
break;
case 'F':
hardforce = B_TRUE;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
cb.force = force;
cb.hardforce = hardforce;
argc -= optind;
argv += optind;
if (do_all) {
if (argc != 0) {
(void) fprintf(stderr, gettext("too many arguments\n"));
usage(B_FALSE);
}
return (for_each_pool(argc, argv, B_TRUE, NULL,
zpool_export_one, &cb));
}
/* check arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool argument\n"));
usage(B_FALSE);
}
ret = for_each_pool(argc, argv, B_TRUE, NULL, zpool_export_one, &cb);
return (ret);
}
/*
* Given a vdev configuration, determine the maximum width needed for the device
* name column.
*/
static int
max_width(zpool_handle_t *zhp, nvlist_t *nv, int depth, int max,
int name_flags)
{
char *name;
nvlist_t **child;
uint_t c, children;
int ret;
name = zpool_vdev_name(g_zfs, zhp, nv, name_flags);
if (strlen(name) + depth > max)
max = strlen(name) + depth;
free(name);
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
&child, &children) == 0) {
for (c = 0; c < children; c++)
if ((ret = max_width(zhp, child[c], depth + 2,
max, name_flags)) > max)
max = ret;
}
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
&child, &children) == 0) {
for (c = 0; c < children; c++)
if ((ret = max_width(zhp, child[c], depth + 2,
max, name_flags)) > max)
max = ret;
}
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
&child, &children) == 0) {
for (c = 0; c < children; c++)
if ((ret = max_width(zhp, child[c], depth + 2,
max, name_flags)) > max)
max = ret;
}
return (max);
}
typedef struct spare_cbdata {
uint64_t cb_guid;
zpool_handle_t *cb_zhp;
} spare_cbdata_t;
static boolean_t
find_vdev(nvlist_t *nv, uint64_t search)
{
uint64_t guid;
nvlist_t **child;
uint_t c, children;
if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) == 0 &&
search == guid)
return (B_TRUE);
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
&child, &children) == 0) {
for (c = 0; c < children; c++)
if (find_vdev(child[c], search))
return (B_TRUE);
}
return (B_FALSE);
}
static int
find_spare(zpool_handle_t *zhp, void *data)
{
spare_cbdata_t *cbp = data;
nvlist_t *config, *nvroot;
config = zpool_get_config(zhp, NULL);
verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
&nvroot) == 0);
if (find_vdev(nvroot, cbp->cb_guid)) {
cbp->cb_zhp = zhp;
return (1);
}
zpool_close(zhp);
return (0);
}
typedef struct status_cbdata {
int cb_count;
int cb_name_flags;
int cb_namewidth;
boolean_t cb_allpools;
boolean_t cb_verbose;
boolean_t cb_explain;
boolean_t cb_first;
boolean_t cb_dedup_stats;
boolean_t cb_print_status;
vdev_cmd_data_list_t *vcdl;
} status_cbdata_t;
/* Return 1 if string is NULL, empty, or whitespace; return 0 otherwise. */
static int
is_blank_str(char *str)
{
while (str != NULL && *str != '\0') {
if (!isblank(*str))
return (0);
str++;
}
return (1);
}
/* Print command output lines for specific vdev in a specific pool */
static void
zpool_print_cmd(vdev_cmd_data_list_t *vcdl, const char *pool, char *path)
{
vdev_cmd_data_t *data;
int i, j;
char *val;
for (i = 0; i < vcdl->count; i++) {
if ((strcmp(vcdl->data[i].path, path) != 0) ||
(strcmp(vcdl->data[i].pool, pool) != 0)) {
/* Not the vdev we're looking for */
continue;
}
data = &vcdl->data[i];
/* Print out all the output values for this vdev */
for (j = 0; j < vcdl->uniq_cols_cnt; j++) {
val = NULL;
/* Does this vdev have values for this column? */
for (int k = 0; k < data->cols_cnt; k++) {
if (strcmp(data->cols[k],
vcdl->uniq_cols[j]) == 0) {
/* yes it does, record the value */
val = data->lines[k];
break;
}
}
/*
* Mark empty values with dashes to make output
* awk-able.
*/
if (is_blank_str(val))
val = "-";
printf("%*s", vcdl->uniq_cols_width[j], val);
if (j < vcdl->uniq_cols_cnt - 1)
printf(" ");
}
/* Print out any values that aren't in a column at the end */
for (j = data->cols_cnt; j < data->lines_cnt; j++) {
/* Did we have any columns? If so print a spacer. */
if (vcdl->uniq_cols_cnt > 0)
printf(" ");
val = data->lines[j];
printf("%s", val ? val : "");
}
break;
}
}
/*
* Print out configuration state as requested by status_callback.
*/
static void
print_status_config(zpool_handle_t *zhp, status_cbdata_t *cb, const char *name,
nvlist_t *nv, int depth, boolean_t isspare)
{
nvlist_t **child;
uint_t c, children;
pool_scan_stat_t *ps = NULL;
vdev_stat_t *vs;
char rbuf[6], wbuf[6], cbuf[6];
char *vname;
uint64_t notpresent;
spare_cbdata_t spare_cb;
const char *state;
char *path = NULL;
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
&child, &children) != 0)
children = 0;
verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
(uint64_t **)&vs, &c) == 0);
state = zpool_state_to_name(vs->vs_state, vs->vs_aux);
if (isspare) {
/*
* For hot spares, we use the terms 'INUSE' and 'AVAILABLE' for
* online drives.
*/
if (vs->vs_aux == VDEV_AUX_SPARED)
state = "INUSE";
else if (vs->vs_state == VDEV_STATE_HEALTHY)
state = "AVAIL";
}
(void) printf("\t%*s%-*s %-8s", depth, "", cb->cb_namewidth - depth,
name, state);
if (!isspare) {
zfs_nicenum(vs->vs_read_errors, rbuf, sizeof (rbuf));
zfs_nicenum(vs->vs_write_errors, wbuf, sizeof (wbuf));
zfs_nicenum(vs->vs_checksum_errors, cbuf, sizeof (cbuf));
(void) printf(" %5s %5s %5s", rbuf, wbuf, cbuf);
}
if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NOT_PRESENT,
&notpresent) == 0) {
verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0);
(void) printf(" was %s", path);
} else if (vs->vs_aux != 0) {
(void) printf(" ");
switch (vs->vs_aux) {
case VDEV_AUX_OPEN_FAILED:
(void) printf(gettext("cannot open"));
break;
case VDEV_AUX_BAD_GUID_SUM:
(void) printf(gettext("missing device"));
break;
case VDEV_AUX_NO_REPLICAS:
(void) printf(gettext("insufficient replicas"));
break;
case VDEV_AUX_VERSION_NEWER:
(void) printf(gettext("newer version"));
break;
case VDEV_AUX_UNSUP_FEAT:
(void) printf(gettext("unsupported feature(s)"));
break;
case VDEV_AUX_SPARED:
verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID,
&spare_cb.cb_guid) == 0);
if (zpool_iter(g_zfs, find_spare, &spare_cb) == 1) {
if (strcmp(zpool_get_name(spare_cb.cb_zhp),
zpool_get_name(zhp)) == 0)
(void) printf(gettext("currently in "
"use"));
else
(void) printf(gettext("in use by "
"pool '%s'"),
zpool_get_name(spare_cb.cb_zhp));
zpool_close(spare_cb.cb_zhp);
} else {
(void) printf(gettext("currently in use"));
}
break;
case VDEV_AUX_ERR_EXCEEDED:
(void) printf(gettext("too many errors"));
break;
case VDEV_AUX_IO_FAILURE:
(void) printf(gettext("experienced I/O failures"));
break;
case VDEV_AUX_BAD_LOG:
(void) printf(gettext("bad intent log"));
break;
case VDEV_AUX_EXTERNAL:
(void) printf(gettext("external device fault"));
break;
case VDEV_AUX_SPLIT_POOL:
(void) printf(gettext("split into new pool"));
break;
case VDEV_AUX_ACTIVE:
(void) printf(gettext("currently in use"));
break;
default:
(void) printf(gettext("corrupted data"));
break;
}
}
(void) nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_SCAN_STATS,
(uint64_t **)&ps, &c);
if (ps != NULL && ps->pss_state == DSS_SCANNING &&
vs->vs_scan_processed != 0 && children == 0) {
(void) printf(gettext(" (%s)"),
(ps->pss_func == POOL_SCAN_RESILVER) ?
"resilvering" : "repairing");
}
if (cb->vcdl != NULL) {
if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0) {
printf(" ");
zpool_print_cmd(cb->vcdl, zpool_get_name(zhp), path);
}
}
(void) printf("\n");
for (c = 0; c < children; c++) {
uint64_t islog = B_FALSE, ishole = B_FALSE;
/* Don't print logs or holes here */
(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
&islog);
(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_HOLE,
&ishole);
if (islog || ishole)
continue;
vname = zpool_vdev_name(g_zfs, zhp, child[c],
cb->cb_name_flags | VDEV_NAME_TYPE_ID);
print_status_config(zhp, cb, vname, child[c], depth + 2,
isspare);
free(vname);
}
}
/*
* Print the configuration of an exported pool. Iterate over all vdevs in the
* pool, printing out the name and status for each one.
*/
static void
print_import_config(status_cbdata_t *cb, const char *name, nvlist_t *nv,
int depth)
{
nvlist_t **child;
uint_t c, children;
vdev_stat_t *vs;
char *type, *vname;
verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) == 0);
if (strcmp(type, VDEV_TYPE_MISSING) == 0 ||
strcmp(type, VDEV_TYPE_HOLE) == 0)
return;
verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
(uint64_t **)&vs, &c) == 0);
(void) printf("\t%*s%-*s", depth, "", cb->cb_namewidth - depth, name);
(void) printf(" %s", zpool_state_to_name(vs->vs_state, vs->vs_aux));
if (vs->vs_aux != 0) {
(void) printf(" ");
switch (vs->vs_aux) {
case VDEV_AUX_OPEN_FAILED:
(void) printf(gettext("cannot open"));
break;
case VDEV_AUX_BAD_GUID_SUM:
(void) printf(gettext("missing device"));
break;
case VDEV_AUX_NO_REPLICAS:
(void) printf(gettext("insufficient replicas"));
break;
case VDEV_AUX_VERSION_NEWER:
(void) printf(gettext("newer version"));
break;
case VDEV_AUX_UNSUP_FEAT:
(void) printf(gettext("unsupported feature(s)"));
break;
case VDEV_AUX_ERR_EXCEEDED:
(void) printf(gettext("too many errors"));
break;
case VDEV_AUX_ACTIVE:
(void) printf(gettext("currently in use"));
break;
default:
(void) printf(gettext("corrupted data"));
break;
}
}
(void) printf("\n");
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
&child, &children) != 0)
return;
for (c = 0; c < children; c++) {
uint64_t is_log = B_FALSE;
(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
&is_log);
if (is_log)
continue;
vname = zpool_vdev_name(g_zfs, NULL, child[c],
cb->cb_name_flags | VDEV_NAME_TYPE_ID);
print_import_config(cb, vname, child[c], depth + 2);
free(vname);
}
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
&child, &children) == 0) {
(void) printf(gettext("\tcache\n"));
for (c = 0; c < children; c++) {
vname = zpool_vdev_name(g_zfs, NULL, child[c],
cb->cb_name_flags);
(void) printf("\t %s\n", vname);
free(vname);
}
}
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
&child, &children) == 0) {
(void) printf(gettext("\tspares\n"));
for (c = 0; c < children; c++) {
vname = zpool_vdev_name(g_zfs, NULL, child[c],
cb->cb_name_flags);
(void) printf("\t %s\n", vname);
free(vname);
}
}
}
/*
* Print log vdevs.
* Logs are recorded as top level vdevs in the main pool child array
* but with "is_log" set to 1. We use either print_status_config() or
* print_import_config() to print the top level logs then any log
* children (eg mirrored slogs) are printed recursively - which
* works because only the top level vdev is marked "is_log"
*/
static void
print_logs(zpool_handle_t *zhp, status_cbdata_t *cb, nvlist_t *nv)
{
uint_t c, children;
nvlist_t **child;
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, &child,
&children) != 0)
return;
(void) printf(gettext("\tlogs\n"));
for (c = 0; c < children; c++) {
uint64_t is_log = B_FALSE;
char *name;
(void) nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
&is_log);
if (!is_log)
continue;
name = zpool_vdev_name(g_zfs, zhp, child[c],
cb->cb_name_flags | VDEV_NAME_TYPE_ID);
if (cb->cb_print_status)
print_status_config(zhp, cb, name, child[c], 2,
B_FALSE);
else
print_import_config(cb, name, child[c], 2);
free(name);
}
}
/*
* Display the status for the given pool.
*/
static void
show_import(nvlist_t *config)
{
uint64_t pool_state;
vdev_stat_t *vs;
char *name;
uint64_t guid;
uint64_t hostid = 0;
char *msgid;
char *hostname = "unknown";
nvlist_t *nvroot, *nvinfo;
zpool_status_t reason;
zpool_errata_t errata;
const char *health;
uint_t vsc;
char *comment;
status_cbdata_t cb = { 0 };
verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
&name) == 0);
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID,
&guid) == 0);
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE,
&pool_state) == 0);
verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
&nvroot) == 0);
verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_VDEV_STATS,
(uint64_t **)&vs, &vsc) == 0);
health = zpool_state_to_name(vs->vs_state, vs->vs_aux);
reason = zpool_import_status(config, &msgid, &errata);
(void) printf(gettext(" pool: %s\n"), name);
(void) printf(gettext(" id: %llu\n"), (u_longlong_t)guid);
(void) printf(gettext(" state: %s"), health);
if (pool_state == POOL_STATE_DESTROYED)
(void) printf(gettext(" (DESTROYED)"));
(void) printf("\n");
switch (reason) {
case ZPOOL_STATUS_MISSING_DEV_R:
case ZPOOL_STATUS_MISSING_DEV_NR:
case ZPOOL_STATUS_BAD_GUID_SUM:
(void) printf(gettext(" status: One or more devices are "
"missing from the system.\n"));
break;
case ZPOOL_STATUS_CORRUPT_LABEL_R:
case ZPOOL_STATUS_CORRUPT_LABEL_NR:
(void) printf(gettext(" status: One or more devices contains "
"corrupted data.\n"));
break;
case ZPOOL_STATUS_CORRUPT_DATA:
(void) printf(
gettext(" status: The pool data is corrupted.\n"));
break;
case ZPOOL_STATUS_OFFLINE_DEV:
(void) printf(gettext(" status: One or more devices "
"are offlined.\n"));
break;
case ZPOOL_STATUS_CORRUPT_POOL:
(void) printf(gettext(" status: The pool metadata is "
"corrupted.\n"));
break;
case ZPOOL_STATUS_VERSION_OLDER:
(void) printf(gettext(" status: The pool is formatted using a "
"legacy on-disk version.\n"));
break;
case ZPOOL_STATUS_VERSION_NEWER:
(void) printf(gettext(" status: The pool is formatted using an "
"incompatible version.\n"));
break;
case ZPOOL_STATUS_FEAT_DISABLED:
(void) printf(gettext(" status: Some supported features are "
"not enabled on the pool.\n"));
break;
case ZPOOL_STATUS_UNSUP_FEAT_READ:
(void) printf(gettext("status: The pool uses the following "
"feature(s) not supported on this system:\n"));
zpool_print_unsup_feat(config);
break;
case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
(void) printf(gettext("status: The pool can only be accessed "
"in read-only mode on this system. It\n\tcannot be "
"accessed in read-write mode because it uses the "
"following\n\tfeature(s) not supported on this system:\n"));
zpool_print_unsup_feat(config);
break;
case ZPOOL_STATUS_HOSTID_ACTIVE:
(void) printf(gettext(" status: The pool is currently "
"imported by another system.\n"));
break;
case ZPOOL_STATUS_HOSTID_REQUIRED:
(void) printf(gettext(" status: The pool has the "
"multihost property on. It cannot\n\tbe safely imported "
"when the system hostid is not set.\n"));
break;
case ZPOOL_STATUS_HOSTID_MISMATCH:
(void) printf(gettext(" status: The pool was last accessed by "
"another system.\n"));
break;
case ZPOOL_STATUS_FAULTED_DEV_R:
case ZPOOL_STATUS_FAULTED_DEV_NR:
(void) printf(gettext(" status: One or more devices are "
"faulted.\n"));
break;
case ZPOOL_STATUS_BAD_LOG:
(void) printf(gettext(" status: An intent log record cannot be "
"read.\n"));
break;
case ZPOOL_STATUS_RESILVERING:
(void) printf(gettext(" status: One or more devices were being "
"resilvered.\n"));
break;
case ZPOOL_STATUS_ERRATA:
(void) printf(gettext(" status: Errata #%d detected.\n"),
errata);
break;
default:
/*
* No other status can be seen when importing pools.
*/
assert(reason == ZPOOL_STATUS_OK);
}
/*
* Print out an action according to the overall state of the pool.
*/
if (vs->vs_state == VDEV_STATE_HEALTHY) {
if (reason == ZPOOL_STATUS_VERSION_OLDER ||
reason == ZPOOL_STATUS_FEAT_DISABLED) {
(void) printf(gettext(" action: The pool can be "
"imported using its name or numeric identifier, "
"though\n\tsome features will not be available "
"without an explicit 'zpool upgrade'.\n"));
} else if (reason == ZPOOL_STATUS_HOSTID_MISMATCH) {
(void) printf(gettext(" action: The pool can be "
"imported using its name or numeric "
"identifier and\n\tthe '-f' flag.\n"));
} else if (reason == ZPOOL_STATUS_ERRATA) {
switch (errata) {
case ZPOOL_ERRATA_NONE:
break;
case ZPOOL_ERRATA_ZOL_2094_SCRUB:
(void) printf(gettext(" action: The pool can "
"be imported using its name or numeric "
"identifier,\n\thowever there is a compat"
"ibility issue which should be corrected"
"\n\tby running 'zpool scrub'\n"));
break;
case ZPOOL_ERRATA_ZOL_2094_ASYNC_DESTROY:
(void) printf(gettext(" action: The pool can"
"not be imported with this version of ZFS "
"due to\n\tan active asynchronous destroy. "
"Revert to an earlier version\n\tand "
"allow the destroy to complete before "
"updating.\n"));
break;
case ZPOOL_ERRATA_ZOL_6845_ENCRYPTION:
(void) printf(gettext(" action: Existing "
"encrypted datasets contain an on-disk "
"incompatibility, which\n\tneeds to be "
"corrected. Backup these datasets to new "
"encrypted datasets\n\tand destroy the "
"old ones.\n"));
break;
default:
/*
* All errata must contain an action message.
*/
assert(0);
}
} else {
(void) printf(gettext(" action: The pool can be "
"imported using its name or numeric "
"identifier.\n"));
}
} else if (vs->vs_state == VDEV_STATE_DEGRADED) {
(void) printf(gettext(" action: The pool can be imported "
"despite missing or damaged devices. The\n\tfault "
"tolerance of the pool may be compromised if imported.\n"));
} else {
switch (reason) {
case ZPOOL_STATUS_VERSION_NEWER:
(void) printf(gettext(" action: The pool cannot be "
"imported. Access the pool on a system running "
"newer\n\tsoftware, or recreate the pool from "
"backup.\n"));
break;
case ZPOOL_STATUS_UNSUP_FEAT_READ:
(void) printf(gettext("action: The pool cannot be "
"imported. Access the pool on a system that "
"supports\n\tthe required feature(s), or recreate "
"the pool from backup.\n"));
break;
case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
(void) printf(gettext("action: The pool cannot be "
"imported in read-write mode. Import the pool "
"with\n"
"\t\"-o readonly=on\", access the pool on a system "
"that supports the\n\trequired feature(s), or "
"recreate the pool from backup.\n"));
break;
case ZPOOL_STATUS_MISSING_DEV_R:
case ZPOOL_STATUS_MISSING_DEV_NR:
case ZPOOL_STATUS_BAD_GUID_SUM:
(void) printf(gettext(" action: The pool cannot be "
"imported. Attach the missing\n\tdevices and try "
"again.\n"));
break;
case ZPOOL_STATUS_HOSTID_ACTIVE:
VERIFY0(nvlist_lookup_nvlist(config,
ZPOOL_CONFIG_LOAD_INFO, &nvinfo));
if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_HOSTNAME))
hostname = fnvlist_lookup_string(nvinfo,
ZPOOL_CONFIG_MMP_HOSTNAME);
if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_HOSTID))
hostid = fnvlist_lookup_uint64(nvinfo,
ZPOOL_CONFIG_MMP_HOSTID);
(void) printf(gettext(" action: The pool must be "
"exported from %s (hostid=%lx)\n\tbefore it "
"can be safely imported.\n"), hostname,
(unsigned long) hostid);
break;
case ZPOOL_STATUS_HOSTID_REQUIRED:
(void) printf(gettext(" action: Set a unique system "
"hostid with the zgenhostid(8) command.\n"));
break;
default:
(void) printf(gettext(" action: The pool cannot be "
"imported due to damaged devices or data.\n"));
}
}
/* Print the comment attached to the pool. */
if (nvlist_lookup_string(config, ZPOOL_CONFIG_COMMENT, &comment) == 0)
(void) printf(gettext("comment: %s\n"), comment);
/*
* If the state is "closed" or "can't open", and the aux state
* is "corrupt data":
*/
if (((vs->vs_state == VDEV_STATE_CLOSED) ||
(vs->vs_state == VDEV_STATE_CANT_OPEN)) &&
(vs->vs_aux == VDEV_AUX_CORRUPT_DATA)) {
if (pool_state == POOL_STATE_DESTROYED)
(void) printf(gettext("\tThe pool was destroyed, "
"but can be imported using the '-Df' flags.\n"));
else if (pool_state != POOL_STATE_EXPORTED)
(void) printf(gettext("\tThe pool may be active on "
"another system, but can be imported using\n\t"
"the '-f' flag.\n"));
}
if (msgid != NULL)
(void) printf(gettext(" see: http://zfsonlinux.org/msg/%s\n"),
msgid);
(void) printf(gettext(" config:\n\n"));
cb.cb_namewidth = max_width(NULL, nvroot, 0, strlen(name),
VDEV_NAME_TYPE_ID);
if (cb.cb_namewidth < 10)
cb.cb_namewidth = 10;
print_import_config(&cb, name, nvroot, 0);
if (num_logs(nvroot) > 0)
print_logs(NULL, &cb, nvroot);
if (reason == ZPOOL_STATUS_BAD_GUID_SUM) {
(void) printf(gettext("\n\tAdditional devices are known to "
"be part of this pool, though their\n\texact "
"configuration cannot be determined.\n"));
}
}
static boolean_t
zfs_force_import_required(nvlist_t *config)
{
uint64_t state;
uint64_t hostid = 0;
nvlist_t *nvinfo;
state = fnvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE);
(void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_HOSTID, &hostid);
if (state != POOL_STATE_EXPORTED && hostid != get_system_hostid())
return (B_TRUE);
nvinfo = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO);
if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_STATE)) {
mmp_state_t mmp_state = fnvlist_lookup_uint64(nvinfo,
ZPOOL_CONFIG_MMP_STATE);
if (mmp_state != MMP_STATE_INACTIVE)
return (B_TRUE);
}
return (B_FALSE);
}
/*
* Perform the import for the given configuration. This passes the heavy
* lifting off to zpool_import_props(), and then mounts the datasets contained
* within the pool.
*/
static int
do_import(nvlist_t *config, const char *newname, const char *mntopts,
nvlist_t *props, int flags)
{
int ret = 0;
zpool_handle_t *zhp;
char *name;
uint64_t version;
name = fnvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME);
version = fnvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION);
if (!SPA_VERSION_IS_SUPPORTED(version)) {
(void) fprintf(stderr, gettext("cannot import '%s': pool "
"is formatted using an unsupported ZFS version\n"), name);
return (1);
} else if (zfs_force_import_required(config) &&
!(flags & ZFS_IMPORT_ANY_HOST)) {
mmp_state_t mmp_state = MMP_STATE_INACTIVE;
nvlist_t *nvinfo;
nvinfo = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO);
if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_STATE))
mmp_state = fnvlist_lookup_uint64(nvinfo,
ZPOOL_CONFIG_MMP_STATE);
if (mmp_state == MMP_STATE_ACTIVE) {
char *hostname = "<unknown>";
uint64_t hostid = 0;
if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_HOSTNAME))
hostname = fnvlist_lookup_string(nvinfo,
ZPOOL_CONFIG_MMP_HOSTNAME);
if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_HOSTID))
hostid = fnvlist_lookup_uint64(nvinfo,
ZPOOL_CONFIG_MMP_HOSTID);
(void) fprintf(stderr, gettext("cannot import '%s': "
"pool is imported on %s (hostid: "
"0x%lx)\nExport the pool on the other system, "
"then run 'zpool import'.\n"),
name, hostname, (unsigned long) hostid);
} else if (mmp_state == MMP_STATE_NO_HOSTID) {
(void) fprintf(stderr, gettext("Cannot import '%s': "
"pool has the multihost property on and the\n"
"system's hostid is not set. Set a unique hostid "
"with the zgenhostid(8) command.\n"), name);
} else {
char *hostname = "<unknown>";
uint64_t timestamp = 0;
uint64_t hostid = 0;
if (nvlist_exists(config, ZPOOL_CONFIG_HOSTNAME))
hostname = fnvlist_lookup_string(config,
ZPOOL_CONFIG_HOSTNAME);
if (nvlist_exists(config, ZPOOL_CONFIG_TIMESTAMP))
timestamp = fnvlist_lookup_uint64(config,
ZPOOL_CONFIG_TIMESTAMP);
if (nvlist_exists(config, ZPOOL_CONFIG_HOSTID))
hostid = fnvlist_lookup_uint64(config,
ZPOOL_CONFIG_HOSTID);
(void) fprintf(stderr, gettext("cannot import '%s': "
"pool was previously in use from another system.\n"
"Last accessed by %s (hostid=%lx) at %s"
"The pool can be imported, use 'zpool import -f' "
"to import the pool.\n"), name, hostname,
(unsigned long)hostid, ctime((time_t *)&timestamp));
}
return (1);
}
if (zpool_import_props(g_zfs, config, newname, props, flags) != 0)
return (1);
if (newname != NULL)
name = (char *)newname;
if ((zhp = zpool_open_canfail(g_zfs, name)) == NULL)
return (1);
/*
* Loading keys is best effort. We don't want to return immediately
* if it fails but we do want to give the error to the caller.
*/
if (flags & ZFS_IMPORT_LOAD_KEYS) {
ret = zfs_crypto_attempt_load_keys(g_zfs, name);
if (ret != 0)
ret = 1;
}
if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL &&
!(flags & ZFS_IMPORT_ONLY) &&
zpool_enable_datasets(zhp, mntopts, 0) != 0) {
zpool_close(zhp);
return (1);
}
zpool_close(zhp);
return (ret);
}
/*
* zpool import [-d dir] [-D]
* import [-o mntopts] [-o prop=value] ... [-R root] [-D] [-l]
* [-d dir | -c cachefile] [-f] -a
* import [-o mntopts] [-o prop=value] ... [-R root] [-D] [-l]
* [-d dir | -c cachefile] [-f] [-n] [-F] <pool | id> [newpool]
*
* -c Read pool information from a cachefile instead of searching
* devices.
*
* -d Scan in a specific directory, other than /dev/. More than
* one directory can be specified using multiple '-d' options.
*
* -D Scan for previously destroyed pools or import all or only
* specified destroyed pools.
*
* -R Temporarily import the pool, with all mountpoints relative to
* the given root. The pool will remain exported when the machine
* is rebooted.
*
* -V Import even in the presence of faulted vdevs. This is an
* intentionally undocumented option for testing purposes, and
* treats the pool configuration as complete, leaving any bad
* vdevs in the FAULTED state. In other words, it does verbatim
* import.
*
* -f Force import, even if it appears that the pool is active.
*
* -F Attempt rewind if necessary.
*
* -n See if rewind would work, but don't actually rewind.
*
* -N Import the pool but don't mount datasets.
*
* -T Specify a starting txg to use for import. This option is
* intentionally undocumented option for testing purposes.
*
* -a Import all pools found.
*
* -l Load encryption keys while importing.
*
* -o Set property=value and/or temporary mount options (without '=').
*
* -s Scan using the default search path, the libblkid cache will
* not be consulted.
*
* The import command scans for pools to import, and import pools based on pool
* name and GUID. The pool can also be renamed as part of the import process.
*/
int
zpool_do_import(int argc, char **argv)
{
char **searchdirs = NULL;
char *env, *envdup = NULL;
int nsearch = 0;
int c;
int err = 0;
nvlist_t *pools = NULL;
boolean_t do_all = B_FALSE;
boolean_t do_destroyed = B_FALSE;
char *mntopts = NULL;
nvpair_t *elem;
nvlist_t *config;
uint64_t searchguid = 0;
char *searchname = NULL;
char *propval;
nvlist_t *found_config;
nvlist_t *policy = NULL;
nvlist_t *props = NULL;
boolean_t first;
int flags = ZFS_IMPORT_NORMAL;
uint32_t rewind_policy = ZPOOL_NO_REWIND;
boolean_t dryrun = B_FALSE;
boolean_t do_rewind = B_FALSE;
boolean_t xtreme_rewind = B_FALSE;
boolean_t do_scan = B_FALSE;
uint64_t pool_state, txg = -1ULL;
char *cachefile = NULL;
importargs_t idata = { 0 };
char *endptr;
/* check options */
while ((c = getopt(argc, argv, ":aCc:d:DEfFlmnNo:R:stT:VX")) != -1) {
switch (c) {
case 'a':
do_all = B_TRUE;
break;
case 'c':
cachefile = optarg;
break;
case 'd':
if (searchdirs == NULL) {
searchdirs = safe_malloc(sizeof (char *));
} else {
char **tmp = safe_malloc((nsearch + 1) *
sizeof (char *));
bcopy(searchdirs, tmp, nsearch *
sizeof (char *));
free(searchdirs);
searchdirs = tmp;
}
searchdirs[nsearch++] = optarg;
break;
case 'D':
do_destroyed = B_TRUE;
break;
case 'f':
flags |= ZFS_IMPORT_ANY_HOST;
break;
case 'F':
do_rewind = B_TRUE;
break;
case 'l':
flags |= ZFS_IMPORT_LOAD_KEYS;
break;
case 'm':
flags |= ZFS_IMPORT_MISSING_LOG;
break;
case 'n':
dryrun = B_TRUE;
break;
case 'N':
flags |= ZFS_IMPORT_ONLY;
break;
case 'o':
if ((propval = strchr(optarg, '=')) != NULL) {
*propval = '\0';
propval++;
if (add_prop_list(optarg, propval,
&props, B_TRUE))
goto error;
} else {
mntopts = optarg;
}
break;
case 'R':
if (add_prop_list(zpool_prop_to_name(
ZPOOL_PROP_ALTROOT), optarg, &props, B_TRUE))
goto error;
if (add_prop_list_default(zpool_prop_to_name(
ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
goto error;
break;
case 's':
do_scan = B_TRUE;
break;
case 't':
flags |= ZFS_IMPORT_TEMP_NAME;
if (add_prop_list_default(zpool_prop_to_name(
ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
goto error;
break;
case 'T':
errno = 0;
txg = strtoull(optarg, &endptr, 0);
if (errno != 0 || *endptr != '\0') {
(void) fprintf(stderr,
gettext("invalid txg value\n"));
usage(B_FALSE);
}
rewind_policy = ZPOOL_DO_REWIND | ZPOOL_EXTREME_REWIND;
break;
case 'V':
flags |= ZFS_IMPORT_VERBATIM;
break;
case 'X':
xtreme_rewind = B_TRUE;
break;
case ':':
(void) fprintf(stderr, gettext("missing argument for "
"'%c' option\n"), optopt);
usage(B_FALSE);
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
if (cachefile && nsearch != 0) {
(void) fprintf(stderr, gettext("-c is incompatible with -d\n"));
usage(B_FALSE);
}
if ((flags & ZFS_IMPORT_LOAD_KEYS) && (flags & ZFS_IMPORT_ONLY)) {
(void) fprintf(stderr, gettext("-l is incompatible with -N\n"));
usage(B_FALSE);
}
if ((flags & ZFS_IMPORT_LOAD_KEYS) && !do_all && argc == 0) {
(void) fprintf(stderr, gettext("-l is only meaningful during "
"an import\n"));
usage(B_FALSE);
}
if ((dryrun || xtreme_rewind) && !do_rewind) {
(void) fprintf(stderr,
gettext("-n or -X only meaningful with -F\n"));
usage(B_FALSE);
}
if (dryrun)
rewind_policy = ZPOOL_TRY_REWIND;
else if (do_rewind)
rewind_policy = ZPOOL_DO_REWIND;
if (xtreme_rewind)
rewind_policy |= ZPOOL_EXTREME_REWIND;
/* In the future, we can capture further policy and include it here */
if (nvlist_alloc(&policy, NV_UNIQUE_NAME, 0) != 0 ||
nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, txg) != 0 ||
nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind_policy) != 0)
goto error;
/* check argument count */
if (do_all) {
if (argc != 0) {
(void) fprintf(stderr, gettext("too many arguments\n"));
usage(B_FALSE);
}
} else {
if (argc > 2) {
(void) fprintf(stderr, gettext("too many arguments\n"));
usage(B_FALSE);
}
}
/*
* Check for the effective uid. We do this explicitly here because
* otherwise any attempt to discover pools will silently fail.
*/
if (argc == 0 && geteuid() != 0) {
(void) fprintf(stderr, gettext("cannot "
"discover pools: permission denied\n"));
if (searchdirs != NULL)
free(searchdirs);
nvlist_free(props);
nvlist_free(policy);
return (1);
}
/*
* Depending on the arguments given, we do one of the following:
*
* <none> Iterate through all pools and display information about
* each one.
*
* -a Iterate through all pools and try to import each one.
*
* <id> Find the pool that corresponds to the given GUID/pool
* name and import that one.
*
* -D Above options applies only to destroyed pools.
*/
if (argc != 0) {
char *endptr;
errno = 0;
searchguid = strtoull(argv[0], &endptr, 10);
if (errno != 0 || *endptr != '\0') {
searchname = argv[0];
searchguid = 0;
}
found_config = NULL;
/*
* User specified a name or guid. Ensure it's unique.
*/
idata.unique = B_TRUE;
}
/*
* Check the environment for the preferred search path.
*/
if ((searchdirs == NULL) && (env = getenv("ZPOOL_IMPORT_PATH"))) {
char *dir;
envdup = strdup(env);
dir = strtok(envdup, ":");
while (dir != NULL) {
if (searchdirs == NULL) {
searchdirs = safe_malloc(sizeof (char *));
} else {
char **tmp = safe_malloc((nsearch + 1) *
sizeof (char *));
bcopy(searchdirs, tmp, nsearch *
sizeof (char *));
free(searchdirs);
searchdirs = tmp;
}
searchdirs[nsearch++] = dir;
dir = strtok(NULL, ":");
}
}
idata.path = searchdirs;
idata.paths = nsearch;
idata.poolname = searchname;
idata.guid = searchguid;
idata.cachefile = cachefile;
idata.scan = do_scan;
pools = zpool_search_import(g_zfs, &idata);
if (pools != NULL && idata.exists &&
(argc == 1 || strcmp(argv[0], argv[1]) == 0)) {
(void) fprintf(stderr, gettext("cannot import '%s': "
"a pool with that name already exists\n"),
argv[0]);
(void) fprintf(stderr, gettext("use the form '%s "
"<pool | id> <newpool>' to give it a new name\n"),
"zpool import");
err = 1;
} else if (pools == NULL && idata.exists) {
(void) fprintf(stderr, gettext("cannot import '%s': "
"a pool with that name is already created/imported,\n"),
argv[0]);
(void) fprintf(stderr, gettext("and no additional pools "
"with that name were found\n"));
err = 1;
} else if (pools == NULL) {
if (argc != 0) {
(void) fprintf(stderr, gettext("cannot import '%s': "
"no such pool available\n"), argv[0]);
}
err = 1;
}
if (err == 1) {
if (searchdirs != NULL)
free(searchdirs);
if (envdup != NULL)
free(envdup);
nvlist_free(policy);
nvlist_free(pools);
nvlist_free(props);
return (1);
}
/*
* At this point we have a list of import candidate configs. Even if
* we were searching by pool name or guid, we still need to
* post-process the list to deal with pool state and possible
* duplicate names.
*/
err = 0;
elem = NULL;
first = B_TRUE;
while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
verify(nvpair_value_nvlist(elem, &config) == 0);
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE,
&pool_state) == 0);
if (!do_destroyed && pool_state == POOL_STATE_DESTROYED)
continue;
if (do_destroyed && pool_state != POOL_STATE_DESTROYED)
continue;
verify(nvlist_add_nvlist(config, ZPOOL_REWIND_POLICY,
policy) == 0);
if (argc == 0) {
if (first)
first = B_FALSE;
else if (!do_all)
(void) printf("\n");
if (do_all) {
err |= do_import(config, NULL, mntopts,
props, flags);
} else {
show_import(config);
}
} else if (searchname != NULL) {
char *name;
/*
* We are searching for a pool based on name.
*/
verify(nvlist_lookup_string(config,
ZPOOL_CONFIG_POOL_NAME, &name) == 0);
if (strcmp(name, searchname) == 0) {
if (found_config != NULL) {
(void) fprintf(stderr, gettext(
"cannot import '%s': more than "
"one matching pool\n"), searchname);
(void) fprintf(stderr, gettext(
"import by numeric ID instead\n"));
err = B_TRUE;
}
found_config = config;
}
} else {
uint64_t guid;
/*
* Search for a pool by guid.
*/
verify(nvlist_lookup_uint64(config,
ZPOOL_CONFIG_POOL_GUID, &guid) == 0);
if (guid == searchguid)
found_config = config;
}
}
/*
* If we were searching for a specific pool, verify that we found a
* pool, and then do the import.
*/
if (argc != 0 && err == 0) {
if (found_config == NULL) {
(void) fprintf(stderr, gettext("cannot import '%s': "
"no such pool available\n"), argv[0]);
err = B_TRUE;
} else {
err |= do_import(found_config, argc == 1 ? NULL :
argv[1], mntopts, props, flags);
}
}
/*
* If we were just looking for pools, report an error if none were
* found.
*/
if (argc == 0 && first)
(void) fprintf(stderr,
gettext("no pools available to import\n"));
error:
nvlist_free(props);
nvlist_free(pools);
nvlist_free(policy);
if (searchdirs != NULL)
free(searchdirs);
if (envdup != NULL)
free(envdup);
return (err ? 1 : 0);
}
/*
* zpool sync [-f] [pool] ...
*
* -f (undocumented) force uberblock (and config including zpool cache file)
* update.
*
* Sync the specified pool(s).
* Without arguments "zpool sync" will sync all pools.
* This command initiates TXG sync(s) and will return after the TXG(s) commit.
*
*/
static int
zpool_do_sync(int argc, char **argv)
{
int ret;
boolean_t force = B_FALSE;
/* check options */
while ((ret = getopt(argc, argv, "f")) != -1) {
switch (ret) {
case 'f':
force = B_TRUE;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
/* if argc == 0 we will execute zpool_sync_one on all pools */
ret = for_each_pool(argc, argv, B_FALSE, NULL, zpool_sync_one, &force);
return (ret);
}
typedef struct iostat_cbdata {
uint64_t cb_flags;
int cb_name_flags;
int cb_namewidth;
int cb_iteration;
char **cb_vdev_names; /* Only show these vdevs */
unsigned int cb_vdev_names_count;
boolean_t cb_verbose;
boolean_t cb_literal;
boolean_t cb_scripted;
zpool_list_t *cb_list;
vdev_cmd_data_list_t *vcdl;
} iostat_cbdata_t;
/* iostat labels */
typedef struct name_and_columns {
const char *name; /* Column name */
unsigned int columns; /* Center name to this number of columns */
} name_and_columns_t;
#define IOSTAT_MAX_LABELS 11 /* Max number of labels on one line */
static const name_and_columns_t iostat_top_labels[][IOSTAT_MAX_LABELS] =
{
[IOS_DEFAULT] = {{"capacity", 2}, {"operations", 2}, {"bandwidth", 2},
{NULL}},
[IOS_LATENCY] = {{"total_wait", 2}, {"disk_wait", 2}, {"syncq_wait", 2},
{"asyncq_wait", 2}, {"scrub"}},
[IOS_QUEUES] = {{"syncq_read", 2}, {"syncq_write", 2},
{"asyncq_read", 2}, {"asyncq_write", 2}, {"scrubq_read", 2},
{NULL}},
[IOS_L_HISTO] = {{"total_wait", 2}, {"disk_wait", 2},
{"sync_queue", 2}, {"async_queue", 2}, {NULL}},
[IOS_RQ_HISTO] = {{"sync_read", 2}, {"sync_write", 2},
{"async_read", 2}, {"async_write", 2}, {"scrub", 2}, {NULL}},
};
/* Shorthand - if "columns" field not set, default to 1 column */
static const name_and_columns_t iostat_bottom_labels[][IOSTAT_MAX_LABELS] =
{
[IOS_DEFAULT] = {{"alloc"}, {"free"}, {"read"}, {"write"}, {"read"},
{"write"}, {NULL}},
[IOS_LATENCY] = {{"read"}, {"write"}, {"read"}, {"write"}, {"read"},
{"write"}, {"read"}, {"write"}, {"wait"}, {NULL}},
[IOS_QUEUES] = {{"pend"}, {"activ"}, {"pend"}, {"activ"}, {"pend"},
{"activ"}, {"pend"}, {"activ"}, {"pend"}, {"activ"}, {NULL}},
[IOS_L_HISTO] = {{"read"}, {"write"}, {"read"}, {"write"}, {"read"},
{"write"}, {"read"}, {"write"}, {"scrub"}, {NULL}},
[IOS_RQ_HISTO] = {{"ind"}, {"agg"}, {"ind"}, {"agg"}, {"ind"}, {"agg"},
{"ind"}, {"agg"}, {"ind"}, {"agg"}, {NULL}},
};
static const char *histo_to_title[] = {
[IOS_L_HISTO] = "latency",
[IOS_RQ_HISTO] = "req_size",
};
/*
* Return the number of labels in a null-terminated name_and_columns_t
* array.
*
*/
static unsigned int
label_array_len(const name_and_columns_t *labels)
{
int i = 0;
while (labels[i].name)
i++;
return (i);
}
/*
* Return the number of strings in a null-terminated string array.
* For example:
*
* const char foo[] = {"bar", "baz", NULL}
*
* returns 2
*/
static uint64_t
str_array_len(const char *array[])
{
uint64_t i = 0;
while (array[i])
i++;
return (i);
}
/*
* Return a default column width for default/latency/queue columns. This does
* not include histograms, which have their columns autosized.
*/
static unsigned int
default_column_width(iostat_cbdata_t *cb, enum iostat_type type)
{
unsigned long column_width = 5; /* Normal niceprint */
static unsigned long widths[] = {
/*
* Choose some sane default column sizes for printing the
* raw numbers.
*/
[IOS_DEFAULT] = 15, /* 1PB capacity */
[IOS_LATENCY] = 10, /* 1B ns = 10sec */
[IOS_QUEUES] = 6, /* 1M queue entries */
};
if (cb->cb_literal)
column_width = widths[type];
return (column_width);
}
/*
* Print the column labels, i.e:
*
* capacity operations bandwidth
* alloc free read write read write ...
*
* If force_column_width is set, use it for the column width. If not set, use
* the default column width.
*/
void
print_iostat_labels(iostat_cbdata_t *cb, unsigned int force_column_width,
const name_and_columns_t labels[][IOSTAT_MAX_LABELS])
{
int i, idx, s;
unsigned int text_start, rw_column_width, spaces_to_end;
uint64_t flags = cb->cb_flags;
uint64_t f;
unsigned int column_width = force_column_width;
/* For each bit set in flags */
for (f = flags; f; f &= ~(1ULL << idx)) {
idx = lowbit64(f) - 1;
if (!force_column_width)
column_width = default_column_width(cb, idx);
/* Print our top labels centered over "read write" label. */
for (i = 0; i < label_array_len(labels[idx]); i++) {
const char *name = labels[idx][i].name;
/*
* We treat labels[][].columns == 0 as shorthand
* for one column. It makes writing out the label
* tables more concise.
*/
unsigned int columns = MAX(1, labels[idx][i].columns);
unsigned int slen = strlen(name);
rw_column_width = (column_width * columns) +
(2 * (columns - 1));
text_start = (int)((rw_column_width)/columns -
slen/columns);
printf(" "); /* Two spaces between columns */
/* Space from beginning of column to label */
for (s = 0; s < text_start; s++)
printf(" ");
printf("%s", name);
/* Print space after label to end of column */
spaces_to_end = rw_column_width - text_start - slen;
for (s = 0; s < spaces_to_end; s++)
printf(" ");
}
}
}
/*
* print_cmd_columns - Print custom column titles from -c
*
* If the user specified the "zpool status|iostat -c" then print their custom
* column titles in the header. For example, print_cmd_columns() would print
* the " col1 col2" part of this:
*
* $ zpool iostat -vc 'echo col1=val1; echo col2=val2'
* ...
* capacity operations bandwidth
* pool alloc free read write read write col1 col2
* ---------- ----- ----- ----- ----- ----- ----- ---- ----
* mypool 269K 1008M 0 0 107 946
* mirror 269K 1008M 0 0 107 946
* sdb - - 0 0 102 473 val1 val2
* sdc - - 0 0 5 473 val1 val2
* ---------- ----- ----- ----- ----- ----- ----- ---- ----
*/
void
print_cmd_columns(vdev_cmd_data_list_t *vcdl, int use_dashes)
{
int i, j;
vdev_cmd_data_t *data = &vcdl->data[0];
if (vcdl->count == 0 || data == NULL)
return;
/*
* Each vdev cmd should have the same column names unless the user did
* something weird with their cmd. Just take the column names from the
* first vdev and assume it works for all of them.
*/
for (i = 0; i < vcdl->uniq_cols_cnt; i++) {
printf(" ");
if (use_dashes) {
for (j = 0; j < vcdl->uniq_cols_width[i]; j++)
printf("-");
} else {
printf("%*s", vcdl->uniq_cols_width[i],
vcdl->uniq_cols[i]);
}
}
}
/*
* Utility function to print out a line of dashes like:
*
* -------------------------------- ----- ----- ----- ----- -----
*
* ...or a dashed named-row line like:
*
* logs - - - - -
*
* @cb: iostat data
*
* @force_column_width If non-zero, use the value as the column width.
* Otherwise use the default column widths.
*
* @name: Print a dashed named-row line starting
* with @name. Otherwise, print a regular
* dashed line.
*/
static void
print_iostat_dashes(iostat_cbdata_t *cb, unsigned int force_column_width,
const char *name)
{
int i;
unsigned int namewidth;
uint64_t flags = cb->cb_flags;
uint64_t f;
int idx;
const name_and_columns_t *labels;
const char *title;
if (cb->cb_flags & IOS_ANYHISTO_M) {
title = histo_to_title[IOS_HISTO_IDX(cb->cb_flags)];
} else if (cb->cb_vdev_names_count) {
title = "vdev";
} else {
title = "pool";
}
namewidth = MAX(MAX(strlen(title), cb->cb_namewidth),
name ? strlen(name) : 0);
if (name) {
printf("%-*s", namewidth, name);
} else {
for (i = 0; i < namewidth; i++)
(void) printf("-");
}
/* For each bit in flags */
for (f = flags; f; f &= ~(1ULL << idx)) {
unsigned int column_width;
idx = lowbit64(f) - 1;
if (force_column_width)
column_width = force_column_width;
else
column_width = default_column_width(cb, idx);
labels = iostat_bottom_labels[idx];
for (i = 0; i < label_array_len(labels); i++) {
if (name)
printf(" %*s-", column_width - 1, " ");
else
printf(" %.*s", column_width,
"--------------------");
}
}
}
static void
print_iostat_separator_impl(iostat_cbdata_t *cb,
unsigned int force_column_width)
{
print_iostat_dashes(cb, force_column_width, NULL);
}
static void
print_iostat_separator(iostat_cbdata_t *cb)
{
print_iostat_separator_impl(cb, 0);
}
static void
print_iostat_header_impl(iostat_cbdata_t *cb, unsigned int force_column_width,
const char *histo_vdev_name)
{
unsigned int namewidth;
const char *title;
if (cb->cb_flags & IOS_ANYHISTO_M) {
title = histo_to_title[IOS_HISTO_IDX(cb->cb_flags)];
} else if (cb->cb_vdev_names_count) {
title = "vdev";
} else {
title = "pool";
}
namewidth = MAX(MAX(strlen(title), cb->cb_namewidth),
histo_vdev_name ? strlen(histo_vdev_name) : 0);
if (histo_vdev_name)
printf("%-*s", namewidth, histo_vdev_name);
else
printf("%*s", namewidth, "");
print_iostat_labels(cb, force_column_width, iostat_top_labels);
printf("\n");
printf("%-*s", namewidth, title);
print_iostat_labels(cb, force_column_width, iostat_bottom_labels);
if (cb->vcdl != NULL)
print_cmd_columns(cb->vcdl, 0);
printf("\n");
print_iostat_separator_impl(cb, force_column_width);
if (cb->vcdl != NULL)
print_cmd_columns(cb->vcdl, 1);
printf("\n");
}
static void
print_iostat_header(iostat_cbdata_t *cb)
{
print_iostat_header_impl(cb, 0, NULL);
}
/*
* Display a single statistic.
*/
static void
print_one_stat(uint64_t value, enum zfs_nicenum_format format,
unsigned int column_size, boolean_t scripted)
{
char buf[64];
zfs_nicenum_format(value, buf, sizeof (buf), format);
if (scripted)
printf("\t%s", buf);
else
printf(" %*s", column_size, buf);
}
/*
* Calculate the default vdev stats
*
* Subtract oldvs from newvs, apply a scaling factor, and save the resulting
* stats into calcvs.
*/
static void
calc_default_iostats(vdev_stat_t *oldvs, vdev_stat_t *newvs,
vdev_stat_t *calcvs)
{
int i;
memcpy(calcvs, newvs, sizeof (*calcvs));
for (i = 0; i < ARRAY_SIZE(calcvs->vs_ops); i++)
calcvs->vs_ops[i] = (newvs->vs_ops[i] - oldvs->vs_ops[i]);
for (i = 0; i < ARRAY_SIZE(calcvs->vs_bytes); i++)
calcvs->vs_bytes[i] = (newvs->vs_bytes[i] - oldvs->vs_bytes[i]);
}
/*
* Internal representation of the extended iostats data.
*
* The extended iostat stats are exported in nvlists as either uint64_t arrays
* or single uint64_t's. We make both look like arrays to make them easier
* to process. In order to make single uint64_t's look like arrays, we set
* __data to the stat data, and then set *data = &__data with count = 1. Then,
* we can just use *data and count.
*/
struct stat_array {
uint64_t *data;
uint_t count; /* Number of entries in data[] */
uint64_t __data; /* Only used when data is a single uint64_t */
};
static uint64_t
stat_histo_max(struct stat_array *nva, unsigned int len)
{
uint64_t max = 0;
int i;
for (i = 0; i < len; i++)
max = MAX(max, array64_max(nva[i].data, nva[i].count));
return (max);
}
/*
* Helper function to lookup a uint64_t array or uint64_t value and store its
* data as a stat_array. If the nvpair is a single uint64_t value, then we make
* it look like a one element array to make it easier to process.
*/
static int
nvpair64_to_stat_array(nvlist_t *nvl, const char *name,
struct stat_array *nva)
{
nvpair_t *tmp;
int ret;
verify(nvlist_lookup_nvpair(nvl, name, &tmp) == 0);
switch (nvpair_type(tmp)) {
case DATA_TYPE_UINT64_ARRAY:
ret = nvpair_value_uint64_array(tmp, &nva->data, &nva->count);
break;
case DATA_TYPE_UINT64:
ret = nvpair_value_uint64(tmp, &nva->__data);
nva->data = &nva->__data;
nva->count = 1;
break;
default:
/* Not a uint64_t */
ret = EINVAL;
break;
}
return (ret);
}
/*
* Given a list of nvlist names, look up the extended stats in newnv and oldnv,
* subtract them, and return the results in a newly allocated stat_array.
* You must free the returned array after you are done with it with
* free_calc_stats().
*
* Additionally, you can set "oldnv" to NULL if you simply want the newnv
* values.
*/
static struct stat_array *
calc_and_alloc_stats_ex(const char **names, unsigned int len, nvlist_t *oldnv,
nvlist_t *newnv)
{
nvlist_t *oldnvx = NULL, *newnvx;
struct stat_array *oldnva, *newnva, *calcnva;
int i, j;
unsigned int alloc_size = (sizeof (struct stat_array)) * len;
/* Extract our extended stats nvlist from the main list */
verify(nvlist_lookup_nvlist(newnv, ZPOOL_CONFIG_VDEV_STATS_EX,
&newnvx) == 0);
if (oldnv) {
verify(nvlist_lookup_nvlist(oldnv, ZPOOL_CONFIG_VDEV_STATS_EX,
&oldnvx) == 0);
}
newnva = safe_malloc(alloc_size);
oldnva = safe_malloc(alloc_size);
calcnva = safe_malloc(alloc_size);
for (j = 0; j < len; j++) {
verify(nvpair64_to_stat_array(newnvx, names[j],
&newnva[j]) == 0);
calcnva[j].count = newnva[j].count;
alloc_size = calcnva[j].count * sizeof (calcnva[j].data[0]);
calcnva[j].data = safe_malloc(alloc_size);
memcpy(calcnva[j].data, newnva[j].data, alloc_size);
if (oldnvx) {
verify(nvpair64_to_stat_array(oldnvx, names[j],
&oldnva[j]) == 0);
for (i = 0; i < oldnva[j].count; i++)
calcnva[j].data[i] -= oldnva[j].data[i];
}
}
free(newnva);
free(oldnva);
return (calcnva);
}
static void
free_calc_stats(struct stat_array *nva, unsigned int len)
{
int i;
for (i = 0; i < len; i++)
free(nva[i].data);
free(nva);
}
static void
print_iostat_histo(struct stat_array *nva, unsigned int len,
iostat_cbdata_t *cb, unsigned int column_width, unsigned int namewidth,
double scale)
{
int i, j;
char buf[6];
uint64_t val;
enum zfs_nicenum_format format;
unsigned int buckets;
unsigned int start_bucket;
if (cb->cb_literal)
format = ZFS_NICENUM_RAW;
else
format = ZFS_NICENUM_1024;
/* All these histos are the same size, so just use nva[0].count */
buckets = nva[0].count;
if (cb->cb_flags & IOS_RQ_HISTO_M) {
/* Start at 512 - req size should never be lower than this */
start_bucket = 9;
} else {
start_bucket = 0;
}
for (j = start_bucket; j < buckets; j++) {
/* Print histogram bucket label */
if (cb->cb_flags & IOS_L_HISTO_M) {
/* Ending range of this bucket */
val = (1UL << (j + 1)) - 1;
zfs_nicetime(val, buf, sizeof (buf));
} else {
/* Request size (starting range of bucket) */
val = (1UL << j);
zfs_nicenum(val, buf, sizeof (buf));
}
if (cb->cb_scripted)
printf("%llu", (u_longlong_t)val);
else
printf("%-*s", namewidth, buf);
/* Print the values on the line */
for (i = 0; i < len; i++) {
print_one_stat(nva[i].data[j] * scale, format,
column_width, cb->cb_scripted);
}
printf("\n");
}
}
static void
print_solid_separator(unsigned int length)
{
while (length--)
printf("-");
printf("\n");
}
static void
print_iostat_histos(iostat_cbdata_t *cb, nvlist_t *oldnv,
nvlist_t *newnv, double scale, const char *name)
{
unsigned int column_width;
unsigned int namewidth;
unsigned int entire_width;
enum iostat_type type;
struct stat_array *nva;
const char **names;
unsigned int names_len;
/* What type of histo are we? */
type = IOS_HISTO_IDX(cb->cb_flags);
/* Get NULL-terminated array of nvlist names for our histo */
names = vsx_type_to_nvlist[type];
names_len = str_array_len(names); /* num of names */
nva = calc_and_alloc_stats_ex(names, names_len, oldnv, newnv);
if (cb->cb_literal) {
column_width = MAX(5,
(unsigned int) log10(stat_histo_max(nva, names_len)) + 1);
} else {
column_width = 5;
}
namewidth = MAX(cb->cb_namewidth,
strlen(histo_to_title[IOS_HISTO_IDX(cb->cb_flags)]));
/*
* Calculate the entire line width of what we're printing. The
* +2 is for the two spaces between columns:
*/
/* read write */
/* ----- ----- */
/* |___| <---------- column_width */
/* */
/* |__________| <--- entire_width */
/* */
entire_width = namewidth + (column_width + 2) *
label_array_len(iostat_bottom_labels[type]);
if (cb->cb_scripted)
printf("%s\n", name);
else
print_iostat_header_impl(cb, column_width, name);
print_iostat_histo(nva, names_len, cb, column_width,
namewidth, scale);
free_calc_stats(nva, names_len);
if (!cb->cb_scripted)
print_solid_separator(entire_width);
}
/*
* Calculate the average latency of a power-of-two latency histogram
*/
static uint64_t
single_histo_average(uint64_t *histo, unsigned int buckets)
{
int i;
uint64_t count = 0, total = 0;
for (i = 0; i < buckets; i++) {
/*
* Our buckets are power-of-two latency ranges. Use the
* midpoint latency of each bucket to calculate the average.
* For example:
*
* Bucket Midpoint
* 8ns-15ns: 12ns
* 16ns-31ns: 24ns
* ...
*/
if (histo[i] != 0) {
total += histo[i] * (((1UL << i) + ((1UL << i)/2)));
count += histo[i];
}
}
/* Prevent divide by zero */
return (count == 0 ? 0 : total / count);
}
static void
print_iostat_queues(iostat_cbdata_t *cb, nvlist_t *oldnv,
nvlist_t *newnv, double scale)
{
int i;
uint64_t val;
const char *names[] = {
ZPOOL_CONFIG_VDEV_SYNC_R_PEND_QUEUE,
ZPOOL_CONFIG_VDEV_SYNC_R_ACTIVE_QUEUE,
ZPOOL_CONFIG_VDEV_SYNC_W_PEND_QUEUE,
ZPOOL_CONFIG_VDEV_SYNC_W_ACTIVE_QUEUE,
ZPOOL_CONFIG_VDEV_ASYNC_R_PEND_QUEUE,
ZPOOL_CONFIG_VDEV_ASYNC_R_ACTIVE_QUEUE,
ZPOOL_CONFIG_VDEV_ASYNC_W_PEND_QUEUE,
ZPOOL_CONFIG_VDEV_ASYNC_W_ACTIVE_QUEUE,
ZPOOL_CONFIG_VDEV_SCRUB_PEND_QUEUE,
ZPOOL_CONFIG_VDEV_SCRUB_ACTIVE_QUEUE,
};
struct stat_array *nva;
unsigned int column_width = default_column_width(cb, IOS_QUEUES);
enum zfs_nicenum_format format;
nva = calc_and_alloc_stats_ex(names, ARRAY_SIZE(names), NULL, newnv);
if (cb->cb_literal)
format = ZFS_NICENUM_RAW;
else
format = ZFS_NICENUM_1024;
for (i = 0; i < ARRAY_SIZE(names); i++) {
val = nva[i].data[0] * scale;
print_one_stat(val, format, column_width, cb->cb_scripted);
}
free_calc_stats(nva, ARRAY_SIZE(names));
}
static void
print_iostat_latency(iostat_cbdata_t *cb, nvlist_t *oldnv,
nvlist_t *newnv, double scale)
{
int i;
uint64_t val;
const char *names[] = {
ZPOOL_CONFIG_VDEV_TOT_R_LAT_HISTO,
ZPOOL_CONFIG_VDEV_TOT_W_LAT_HISTO,
ZPOOL_CONFIG_VDEV_DISK_R_LAT_HISTO,
ZPOOL_CONFIG_VDEV_DISK_W_LAT_HISTO,
ZPOOL_CONFIG_VDEV_SYNC_R_LAT_HISTO,
ZPOOL_CONFIG_VDEV_SYNC_W_LAT_HISTO,
ZPOOL_CONFIG_VDEV_ASYNC_R_LAT_HISTO,
ZPOOL_CONFIG_VDEV_ASYNC_W_LAT_HISTO,
ZPOOL_CONFIG_VDEV_SCRUB_LAT_HISTO,
};
struct stat_array *nva;
unsigned int column_width = default_column_width(cb, IOS_LATENCY);
enum zfs_nicenum_format format;
nva = calc_and_alloc_stats_ex(names, ARRAY_SIZE(names), oldnv, newnv);
if (cb->cb_literal)
format = ZFS_NICENUM_RAWTIME;
else
format = ZFS_NICENUM_TIME;
/* Print our avg latencies on the line */
for (i = 0; i < ARRAY_SIZE(names); i++) {
/* Compute average latency for a latency histo */
val = single_histo_average(nva[i].data, nva[i].count) * scale;
print_one_stat(val, format, column_width, cb->cb_scripted);
}
free_calc_stats(nva, ARRAY_SIZE(names));
}
/*
* Print default statistics (capacity/operations/bandwidth)
*/
static void
print_iostat_default(vdev_stat_t *vs, iostat_cbdata_t *cb, double scale)
{
unsigned int column_width = default_column_width(cb, IOS_DEFAULT);
enum zfs_nicenum_format format;
char na; /* char to print for "not applicable" values */
if (cb->cb_literal) {
format = ZFS_NICENUM_RAW;
na = '0';
} else {
format = ZFS_NICENUM_1024;
na = '-';
}
/* only toplevel vdevs have capacity stats */
if (vs->vs_space == 0) {
if (cb->cb_scripted)
printf("\t%c\t%c", na, na);
else
printf(" %*c %*c", column_width, na, column_width,
na);
} else {
print_one_stat(vs->vs_alloc, format, column_width,
cb->cb_scripted);
print_one_stat(vs->vs_space - vs->vs_alloc, format,
column_width, cb->cb_scripted);
}
print_one_stat((uint64_t)(vs->vs_ops[ZIO_TYPE_READ] * scale),
format, column_width, cb->cb_scripted);
print_one_stat((uint64_t)(vs->vs_ops[ZIO_TYPE_WRITE] * scale),
format, column_width, cb->cb_scripted);
print_one_stat((uint64_t)(vs->vs_bytes[ZIO_TYPE_READ] * scale),
format, column_width, cb->cb_scripted);
print_one_stat((uint64_t)(vs->vs_bytes[ZIO_TYPE_WRITE] * scale),
format, column_width, cb->cb_scripted);
}
/*
* Print out all the statistics for the given vdev. This can either be the
* toplevel configuration, or called recursively. If 'name' is NULL, then this
* is a verbose output, and we don't want to display the toplevel pool stats.
*
* Returns the number of stat lines printed.
*/
unsigned int
print_vdev_stats(zpool_handle_t *zhp, const char *name, nvlist_t *oldnv,
nvlist_t *newnv, iostat_cbdata_t *cb, int depth)
{
nvlist_t **oldchild, **newchild;
uint_t c, children, oldchildren;
vdev_stat_t *oldvs, *newvs, *calcvs;
vdev_stat_t zerovs = { 0 };
char *vname;
int i;
int ret = 0;
uint64_t tdelta;
double scale;
calcvs = safe_malloc(sizeof (*calcvs));
if (oldnv != NULL) {
verify(nvlist_lookup_uint64_array(oldnv,
ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&oldvs, &c) == 0);
} else {
oldvs = &zerovs;
}
/* Do we only want to see a specific vdev? */
for (i = 0; i < cb->cb_vdev_names_count; i++) {
/* Yes we do. Is this the vdev? */
if (strcmp(name, cb->cb_vdev_names[i]) == 0) {
/*
* This is our vdev. Since it is the only vdev we
* will be displaying, make depth = 0 so that it
* doesn't get indented.
*/
depth = 0;
break;
}
}
if (cb->cb_vdev_names_count && (i == cb->cb_vdev_names_count)) {
/* Couldn't match the name */
goto children;
}
verify(nvlist_lookup_uint64_array(newnv, ZPOOL_CONFIG_VDEV_STATS,
(uint64_t **)&newvs, &c) == 0);
/*
* Print the vdev name unless it's is a histogram. Histograms
* display the vdev name in the header itself.
*/
if (!(cb->cb_flags & IOS_ANYHISTO_M)) {
if (cb->cb_scripted) {
printf("%s", name);
} else {
if (strlen(name) + depth > cb->cb_namewidth)
(void) printf("%*s%s", depth, "", name);
else
(void) printf("%*s%s%*s", depth, "", name,
(int)(cb->cb_namewidth - strlen(name) -
depth), "");
}
}
/* Calculate our scaling factor */
tdelta = newvs->vs_timestamp - oldvs->vs_timestamp;
if ((oldvs->vs_timestamp == 0) && (cb->cb_flags & IOS_ANYHISTO_M)) {
/*
* If we specify printing histograms with no time interval, then
* print the histogram numbers over the entire lifetime of the
* vdev.
*/
scale = 1;
} else {
if (tdelta == 0)
scale = 1.0;
else
scale = (double)NANOSEC / tdelta;
}
if (cb->cb_flags & IOS_DEFAULT_M) {
calc_default_iostats(oldvs, newvs, calcvs);
print_iostat_default(calcvs, cb, scale);
}
if (cb->cb_flags & IOS_LATENCY_M)
print_iostat_latency(cb, oldnv, newnv, scale);
if (cb->cb_flags & IOS_QUEUES_M)
print_iostat_queues(cb, oldnv, newnv, scale);
if (cb->cb_flags & IOS_ANYHISTO_M) {
printf("\n");
print_iostat_histos(cb, oldnv, newnv, scale, name);
}
if (cb->vcdl != NULL) {
char *path;
if (nvlist_lookup_string(newnv, ZPOOL_CONFIG_PATH,
&path) == 0) {
printf(" ");
zpool_print_cmd(cb->vcdl, zpool_get_name(zhp), path);
}
}
if (!(cb->cb_flags & IOS_ANYHISTO_M))
printf("\n");
ret++;
children:
free(calcvs);
if (!cb->cb_verbose)
return (ret);
if (nvlist_lookup_nvlist_array(newnv, ZPOOL_CONFIG_CHILDREN,
&newchild, &children) != 0)
return (ret);
if (oldnv) {
if (nvlist_lookup_nvlist_array(oldnv, ZPOOL_CONFIG_CHILDREN,
&oldchild, &oldchildren) != 0)
return (ret);
children = MIN(oldchildren, children);
}
for (c = 0; c < children; c++) {
uint64_t ishole = B_FALSE, islog = B_FALSE;
(void) nvlist_lookup_uint64(newchild[c], ZPOOL_CONFIG_IS_HOLE,
&ishole);
(void) nvlist_lookup_uint64(newchild[c], ZPOOL_CONFIG_IS_LOG,
&islog);
if (ishole || islog)
continue;
vname = zpool_vdev_name(g_zfs, zhp, newchild[c],
cb->cb_name_flags);
ret += print_vdev_stats(zhp, vname, oldnv ? oldchild[c] : NULL,
newchild[c], cb, depth + 2);
free(vname);
}
/*
* Log device section
*/
if (num_logs(newnv) > 0) {
if ((!(cb->cb_flags & IOS_ANYHISTO_M)) && !cb->cb_scripted &&
!cb->cb_vdev_names) {
print_iostat_dashes(cb, 0, "logs");
}
printf("\n");
for (c = 0; c < children; c++) {
uint64_t islog = B_FALSE;
(void) nvlist_lookup_uint64(newchild[c],
ZPOOL_CONFIG_IS_LOG, &islog);
if (islog) {
vname = zpool_vdev_name(g_zfs, zhp, newchild[c],
cb->cb_name_flags);
ret += print_vdev_stats(zhp, vname, oldnv ?
oldchild[c] : NULL, newchild[c],
cb, depth + 2);
free(vname);
}
}
}
/*
* Include level 2 ARC devices in iostat output
*/
if (nvlist_lookup_nvlist_array(newnv, ZPOOL_CONFIG_L2CACHE,
&newchild, &children) != 0)
return (ret);
if (oldnv) {
if (nvlist_lookup_nvlist_array(oldnv, ZPOOL_CONFIG_L2CACHE,
&oldchild, &oldchildren) != 0)
return (ret);
children = MIN(oldchildren, children);
}
if (children > 0) {
if ((!(cb->cb_flags & IOS_ANYHISTO_M)) && !cb->cb_scripted &&
!cb->cb_vdev_names) {
print_iostat_dashes(cb, 0, "cache");
}
printf("\n");
for (c = 0; c < children; c++) {
vname = zpool_vdev_name(g_zfs, zhp, newchild[c],
cb->cb_name_flags);
ret += print_vdev_stats(zhp, vname, oldnv ? oldchild[c]
: NULL, newchild[c], cb, depth + 2);
free(vname);
}
}
return (ret);
}
static int
refresh_iostat(zpool_handle_t *zhp, void *data)
{
iostat_cbdata_t *cb = data;
boolean_t missing;
/*
* If the pool has disappeared, remove it from the list and continue.
*/
if (zpool_refresh_stats(zhp, &missing) != 0)
return (-1);
if (missing)
pool_list_remove(cb->cb_list, zhp);
return (0);
}
/*
* Callback to print out the iostats for the given pool.
*/
int
print_iostat(zpool_handle_t *zhp, void *data)
{
iostat_cbdata_t *cb = data;
nvlist_t *oldconfig, *newconfig;
nvlist_t *oldnvroot, *newnvroot;
int ret;
newconfig = zpool_get_config(zhp, &oldconfig);
if (cb->cb_iteration == 1)
oldconfig = NULL;
verify(nvlist_lookup_nvlist(newconfig, ZPOOL_CONFIG_VDEV_TREE,
&newnvroot) == 0);
if (oldconfig == NULL)
oldnvroot = NULL;
else
verify(nvlist_lookup_nvlist(oldconfig, ZPOOL_CONFIG_VDEV_TREE,
&oldnvroot) == 0);
ret = print_vdev_stats(zhp, zpool_get_name(zhp), oldnvroot, newnvroot,
cb, 0);
if ((ret != 0) && !(cb->cb_flags & IOS_ANYHISTO_M) &&
!cb->cb_scripted && cb->cb_verbose && !cb->cb_vdev_names_count) {
print_iostat_separator(cb);
if (cb->vcdl != NULL) {
print_cmd_columns(cb->vcdl, 1);
}
printf("\n");
}
return (ret);
}
static int
get_columns(void)
{
struct winsize ws;
int columns = 80;
int error;
if (isatty(STDOUT_FILENO)) {
error = ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws);
if (error == 0)
columns = ws.ws_col;
} else {
columns = 999;
}
return (columns);
}
int
get_namewidth(zpool_handle_t *zhp, void *data)
{
iostat_cbdata_t *cb = data;
nvlist_t *config, *nvroot;
int columns;
if ((config = zpool_get_config(zhp, NULL)) != NULL) {
verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
&nvroot) == 0);
unsigned int poolname_len = strlen(zpool_get_name(zhp));
if (!cb->cb_verbose)
cb->cb_namewidth = MAX(poolname_len, cb->cb_namewidth);
else
cb->cb_namewidth = MAX(poolname_len,
max_width(zhp, nvroot, 0, cb->cb_namewidth,
cb->cb_name_flags));
}
/*
* The width must be at least 10, but may be as large as the
* column width - 42 so that we can still fit in one line.
*/
columns = get_columns();
if (cb->cb_namewidth < 10)
cb->cb_namewidth = 10;
if (cb->cb_namewidth > columns - 42)
cb->cb_namewidth = columns - 42;
return (0);
}
/*
* Parse the input string, get the 'interval' and 'count' value if there is one.
*/
static void
get_interval_count(int *argcp, char **argv, float *iv,
unsigned long *cnt)
{
float interval = 0;
unsigned long count = 0;
int argc = *argcp;
/*
* Determine if the last argument is an integer or a pool name
*/
if (argc > 0 && isnumber(argv[argc - 1])) {
char *end;
errno = 0;
interval = strtof(argv[argc - 1], &end);
if (*end == '\0' && errno == 0) {
if (interval == 0) {
(void) fprintf(stderr, gettext("interval "
"cannot be zero\n"));
usage(B_FALSE);
}
/*
* Ignore the last parameter
*/
argc--;
} else {
/*
* If this is not a valid number, just plow on. The
* user will get a more informative error message later
* on.
*/
interval = 0;
}
}
/*
* If the last argument is also an integer, then we have both a count
* and an interval.
*/
if (argc > 0 && isnumber(argv[argc - 1])) {
char *end;
errno = 0;
count = interval;
interval = strtof(argv[argc - 1], &end);
if (*end == '\0' && errno == 0) {
if (interval == 0) {
(void) fprintf(stderr, gettext("interval "
"cannot be zero\n"));
usage(B_FALSE);
}
/*
* Ignore the last parameter
*/
argc--;
} else {
interval = 0;
}
}
*iv = interval;
*cnt = count;
*argcp = argc;
}
static void
get_timestamp_arg(char c)
{
if (c == 'u')
timestamp_fmt = UDATE;
else if (c == 'd')
timestamp_fmt = DDATE;
else
usage(B_FALSE);
}
/*
* Return stat flags that are supported by all pools by both the module and
* zpool iostat. "*data" should be initialized to all 0xFFs before running.
* It will get ANDed down until only the flags that are supported on all pools
* remain.
*/
static int
get_stat_flags_cb(zpool_handle_t *zhp, void *data)
{
uint64_t *mask = data;
nvlist_t *config, *nvroot, *nvx;
uint64_t flags = 0;
int i, j;
config = zpool_get_config(zhp, NULL);
verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
&nvroot) == 0);
/* Default stats are always supported, but for completeness.. */
if (nvlist_exists(nvroot, ZPOOL_CONFIG_VDEV_STATS))
flags |= IOS_DEFAULT_M;
/* Get our extended stats nvlist from the main list */
if (nvlist_lookup_nvlist(nvroot, ZPOOL_CONFIG_VDEV_STATS_EX,
&nvx) != 0) {
/*
* No extended stats; they're probably running an older
* module. No big deal, we support that too.
*/
goto end;
}
/* For each extended stat, make sure all its nvpairs are supported */
for (j = 0; j < ARRAY_SIZE(vsx_type_to_nvlist); j++) {
if (!vsx_type_to_nvlist[j][0])
continue;
/* Start off by assuming the flag is supported, then check */
flags |= (1ULL << j);
for (i = 0; vsx_type_to_nvlist[j][i]; i++) {
if (!nvlist_exists(nvx, vsx_type_to_nvlist[j][i])) {
/* flag isn't supported */
flags = flags & ~(1ULL << j);
break;
}
}
}
end:
*mask = *mask & flags;
return (0);
}
/*
* Return a bitmask of stats that are supported on all pools by both the module
* and zpool iostat.
*/
static uint64_t
get_stat_flags(zpool_list_t *list)
{
uint64_t mask = -1;
/*
* get_stat_flags_cb() will lop off bits from "mask" until only the
* flags that are supported on all pools remain.
*/
pool_list_iter(list, B_FALSE, get_stat_flags_cb, &mask);
return (mask);
}
/*
* Return 1 if cb_data->cb_vdev_names[0] is this vdev's name, 0 otherwise.
*/
static int
is_vdev_cb(zpool_handle_t *zhp, nvlist_t *nv, void *cb_data)
{
iostat_cbdata_t *cb = cb_data;
char *name = NULL;
int ret = 0;
name = zpool_vdev_name(g_zfs, zhp, nv, cb->cb_name_flags);
if (strcmp(name, cb->cb_vdev_names[0]) == 0)
ret = 1; /* match */
free(name);
return (ret);
}
/*
* Returns 1 if cb_data->cb_vdev_names[0] is a vdev name, 0 otherwise.
*/
static int
is_vdev(zpool_handle_t *zhp, void *cb_data)
{
return (for_each_vdev(zhp, is_vdev_cb, cb_data));
}
/*
* Check if vdevs are in a pool
*
* Return 1 if all argv[] strings are vdev names in pool "pool_name". Otherwise
* return 0. If pool_name is NULL, then search all pools.
*/
static int
are_vdevs_in_pool(int argc, char **argv, char *pool_name,
iostat_cbdata_t *cb)
{
char **tmp_name;
int ret = 0;
int i;
int pool_count = 0;
if ((argc == 0) || !*argv)
return (0);
if (pool_name)
pool_count = 1;
/* Temporarily hijack cb_vdev_names for a second... */
tmp_name = cb->cb_vdev_names;
/* Go though our list of prospective vdev names */
for (i = 0; i < argc; i++) {
cb->cb_vdev_names = argv + i;
/* Is this name a vdev in our pools? */
ret = for_each_pool(pool_count, &pool_name, B_TRUE, NULL,
is_vdev, cb);
if (!ret) {
/* No match */
break;
}
}
cb->cb_vdev_names = tmp_name;
return (ret);
}
static int
is_pool_cb(zpool_handle_t *zhp, void *data)
{
char *name = data;
if (strcmp(name, zpool_get_name(zhp)) == 0)
return (1);
return (0);
}
/*
* Do we have a pool named *name? If so, return 1, otherwise 0.
*/
static int
is_pool(char *name)
{
return (for_each_pool(0, NULL, B_TRUE, NULL, is_pool_cb, name));
}
/* Are all our argv[] strings pool names? If so return 1, 0 otherwise. */
static int
are_all_pools(int argc, char **argv)
{
if ((argc == 0) || !*argv)
return (0);
while (--argc >= 0)
if (!is_pool(argv[argc]))
return (0);
return (1);
}
/*
* Helper function to print out vdev/pool names we can't resolve. Used for an
* error message.
*/
static void
error_list_unresolved_vdevs(int argc, char **argv, char *pool_name,
iostat_cbdata_t *cb)
{
int i;
char *name;
char *str;
for (i = 0; i < argc; i++) {
name = argv[i];
if (is_pool(name))
str = gettext("pool");
else if (are_vdevs_in_pool(1, &name, pool_name, cb))
str = gettext("vdev in this pool");
else if (are_vdevs_in_pool(1, &name, NULL, cb))
str = gettext("vdev in another pool");
else
str = gettext("unknown");
fprintf(stderr, "\t%s (%s)\n", name, str);
}
}
/*
* Same as get_interval_count(), but with additional checks to not misinterpret
* guids as interval/count values. Assumes VDEV_NAME_GUID is set in
* cb.cb_name_flags.
*/
static void
get_interval_count_filter_guids(int *argc, char **argv, float *interval,
unsigned long *count, iostat_cbdata_t *cb)
{
char **tmpargv = argv;
int argc_for_interval = 0;
/* Is the last arg an interval value? Or a guid? */
if (*argc >= 1 && !are_vdevs_in_pool(1, &argv[*argc - 1], NULL, cb)) {
/*
* The last arg is not a guid, so it's probably an
* interval value.
*/
argc_for_interval++;
if (*argc >= 2 &&
!are_vdevs_in_pool(1, &argv[*argc - 2], NULL, cb)) {
/*
* The 2nd to last arg is not a guid, so it's probably
* an interval value.
*/
argc_for_interval++;
}
}
/* Point to our list of possible intervals */
tmpargv = &argv[*argc - argc_for_interval];
*argc = *argc - argc_for_interval;
get_interval_count(&argc_for_interval, tmpargv,
interval, count);
}
/*
* Floating point sleep(). Allows you to pass in a floating point value for
* seconds.
*/
static void
fsleep(float sec)
{
struct timespec req;
req.tv_sec = floor(sec);
req.tv_nsec = (sec - (float)req.tv_sec) * NANOSEC;
nanosleep(&req, NULL);
}
/*
* Run one of the zpool status/iostat -c scripts with the help (-h) option and
* print the result.
*
* name: Short name of the script ('iostat').
* path: Full path to the script ('/usr/local/etc/zfs/zpool.d/iostat');
*/
static void
print_zpool_script_help(char *name, char *path)
{
char *argv[] = {path, "-h", NULL};
char **lines = NULL;
int lines_cnt = 0;
int rc;
rc = libzfs_run_process_get_stdout_nopath(path, argv, NULL, &lines,
&lines_cnt);
if (rc != 0 || lines == NULL || lines_cnt <= 0) {
if (lines != NULL)
libzfs_free_str_array(lines, lines_cnt);
return;
}
for (int i = 0; i < lines_cnt; i++)
if (!is_blank_str(lines[i]))
printf(" %-14s %s\n", name, lines[i]);
libzfs_free_str_array(lines, lines_cnt);
}
/*
* Go though the zpool status/iostat -c scripts in the user's path, run their
* help option (-h), and print out the results.
*/
static void
print_zpool_dir_scripts(char *dirpath)
{
DIR *dir;
struct dirent *ent;
char fullpath[MAXPATHLEN];
struct stat dir_stat;
if ((dir = opendir(dirpath)) != NULL) {
/* print all the files and directories within directory */
while ((ent = readdir(dir)) != NULL) {
sprintf(fullpath, "%s/%s", dirpath, ent->d_name);
/* Print the scripts */
if (stat(fullpath, &dir_stat) == 0)
if (dir_stat.st_mode & S_IXUSR &&
S_ISREG(dir_stat.st_mode))
print_zpool_script_help(ent->d_name,
fullpath);
}
closedir(dir);
}
}
/*
* Print out help text for all zpool status/iostat -c scripts.
*/
static void
print_zpool_script_list(char *subcommand)
{
char *dir, *sp;
printf(gettext("Available 'zpool %s -c' commands:\n"), subcommand);
sp = zpool_get_cmd_search_path();
if (sp == NULL)
return;
dir = strtok(sp, ":");
while (dir != NULL) {
print_zpool_dir_scripts(dir);
dir = strtok(NULL, ":");
}
free(sp);
}
/*
* zpool iostat [[-c [script1,script2,...]] [-lq]|[-rw]] [-ghHLpPvy] [-n name]
* [-T d|u] [[ pool ...]|[pool vdev ...]|[vdev ...]]
* [interval [count]]
*
* -c CMD For each vdev, run command CMD
* -g Display guid for individual vdev name.
* -L Follow links when resolving vdev path name.
* -P Display full path for vdev name.
* -v Display statistics for individual vdevs
* -h Display help
* -p Display values in parsable (exact) format.
* -H Scripted mode. Don't display headers, and separate properties
* by a single tab.
* -l Display average latency
* -q Display queue depths
* -w Display latency histograms
* -r Display request size histogram
* -T Display a timestamp in date(1) or Unix format
*
* This command can be tricky because we want to be able to deal with pool
* creation/destruction as well as vdev configuration changes. The bulk of this
* processing is handled by the pool_list_* routines in zpool_iter.c. We rely
* on pool_list_update() to detect the addition of new pools. Configuration
* changes are all handled within libzfs.
*/
int
zpool_do_iostat(int argc, char **argv)
{
int c;
int ret;
int npools;
float interval = 0;
unsigned long count = 0;
zpool_list_t *list;
boolean_t verbose = B_FALSE;
boolean_t latency = B_FALSE, l_histo = B_FALSE, rq_histo = B_FALSE;
boolean_t queues = B_FALSE, parsable = B_FALSE, scripted = B_FALSE;
boolean_t omit_since_boot = B_FALSE;
boolean_t guid = B_FALSE;
boolean_t follow_links = B_FALSE;
boolean_t full_name = B_FALSE;
iostat_cbdata_t cb = { 0 };
char *cmd = NULL;
/* Used for printing error message */
const char flag_to_arg[] = {[IOS_LATENCY] = 'l', [IOS_QUEUES] = 'q',
[IOS_L_HISTO] = 'w', [IOS_RQ_HISTO] = 'r'};
uint64_t unsupported_flags;
/* check options */
while ((c = getopt(argc, argv, "c:gLPT:vyhplqrwH")) != -1) {
switch (c) {
case 'c':
if (cmd != NULL) {
fprintf(stderr,
gettext("Can't set -c flag twice\n"));
exit(1);
}
if (getenv("ZPOOL_SCRIPTS_ENABLED") != NULL &&
!libzfs_envvar_is_set("ZPOOL_SCRIPTS_ENABLED")) {
fprintf(stderr, gettext(
"Can't run -c, disabled by "
"ZPOOL_SCRIPTS_ENABLED.\n"));
exit(1);
}
if ((getuid() <= 0 || geteuid() <= 0) &&
!libzfs_envvar_is_set("ZPOOL_SCRIPTS_AS_ROOT")) {
fprintf(stderr, gettext(
"Can't run -c with root privileges "
"unless ZPOOL_SCRIPTS_AS_ROOT is set.\n"));
exit(1);
}
cmd = optarg;
verbose = B_TRUE;
break;
case 'g':
guid = B_TRUE;
break;
case 'L':
follow_links = B_TRUE;
break;
case 'P':
full_name = B_TRUE;
break;
case 'T':
get_timestamp_arg(*optarg);
break;
case 'v':
verbose = B_TRUE;
break;
case 'p':
parsable = B_TRUE;
break;
case 'l':
latency = B_TRUE;
break;
case 'q':
queues = B_TRUE;
break;
case 'H':
scripted = B_TRUE;
break;
case 'w':
l_histo = B_TRUE;
break;
case 'r':
rq_histo = B_TRUE;
break;
case 'y':
omit_since_boot = B_TRUE;
break;
case 'h':
usage(B_FALSE);
break;
case '?':
if (optopt == 'c') {
print_zpool_script_list("iostat");
exit(0);
} else {
fprintf(stderr,
gettext("invalid option '%c'\n"), optopt);
}
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
cb.cb_literal = parsable;
cb.cb_scripted = scripted;
if (guid)
cb.cb_name_flags |= VDEV_NAME_GUID;
if (follow_links)
cb.cb_name_flags |= VDEV_NAME_FOLLOW_LINKS;
if (full_name)
cb.cb_name_flags |= VDEV_NAME_PATH;
cb.cb_iteration = 0;
cb.cb_namewidth = 0;
cb.cb_verbose = verbose;
/* Get our interval and count values (if any) */
if (guid) {
get_interval_count_filter_guids(&argc, argv, &interval,
&count, &cb);
} else {
get_interval_count(&argc, argv, &interval, &count);
}
if (argc == 0) {
/* No args, so just print the defaults. */
} else if (are_all_pools(argc, argv)) {
/* All the args are pool names */
} else if (are_vdevs_in_pool(argc, argv, NULL, &cb)) {
/* All the args are vdevs */
cb.cb_vdev_names = argv;
cb.cb_vdev_names_count = argc;
argc = 0; /* No pools to process */
} else if (are_all_pools(1, argv)) {
/* The first arg is a pool name */
if (are_vdevs_in_pool(argc - 1, argv + 1, argv[0], &cb)) {
/* ...and the rest are vdev names */
cb.cb_vdev_names = argv + 1;
cb.cb_vdev_names_count = argc - 1;
argc = 1; /* One pool to process */
} else {
fprintf(stderr, gettext("Expected either a list of "));
fprintf(stderr, gettext("pools, or list of vdevs in"));
fprintf(stderr, " \"%s\", ", argv[0]);
fprintf(stderr, gettext("but got:\n"));
error_list_unresolved_vdevs(argc - 1, argv + 1,
argv[0], &cb);
fprintf(stderr, "\n");
usage(B_FALSE);
return (1);
}
} else {
/*
* The args don't make sense. The first arg isn't a pool name,
* nor are all the args vdevs.
*/
fprintf(stderr, gettext("Unable to parse pools/vdevs list.\n"));
fprintf(stderr, "\n");
return (1);
}
if (cb.cb_vdev_names_count != 0) {
/*
* If user specified vdevs, it implies verbose.
*/
cb.cb_verbose = B_TRUE;
}
/*
* Construct the list of all interesting pools.
*/
ret = 0;
if ((list = pool_list_get(argc, argv, NULL, &ret)) == NULL)
return (1);
if (pool_list_count(list) == 0 && argc != 0) {
pool_list_free(list);
return (1);
}
if (pool_list_count(list) == 0 && interval == 0) {
pool_list_free(list);
(void) fprintf(stderr, gettext("no pools available\n"));
return (1);
}
if ((l_histo || rq_histo) && (cmd != NULL || latency || queues)) {
pool_list_free(list);
(void) fprintf(stderr,
gettext("[-r|-w] isn't allowed with [-c|-l|-q]\n"));
usage(B_FALSE);
return (1);
}
if (l_histo && rq_histo) {
pool_list_free(list);
(void) fprintf(stderr,
gettext("Only one of [-r|-w] can be passed at a time\n"));
usage(B_FALSE);
return (1);
}
/*
* Enter the main iostat loop.
*/
cb.cb_list = list;
if (l_histo) {
/*
* Histograms tables look out of place when you try to display
* them with the other stats, so make a rule that you can only
* print histograms by themselves.
*/
cb.cb_flags = IOS_L_HISTO_M;
} else if (rq_histo) {
cb.cb_flags = IOS_RQ_HISTO_M;
} else {
cb.cb_flags = IOS_DEFAULT_M;
if (latency)
cb.cb_flags |= IOS_LATENCY_M;
if (queues)
cb.cb_flags |= IOS_QUEUES_M;
}
/*
* See if the module supports all the stats we want to display.
*/
unsupported_flags = cb.cb_flags & ~get_stat_flags(list);
if (unsupported_flags) {
uint64_t f;
int idx;
fprintf(stderr,
gettext("The loaded zfs module doesn't support:"));
/* for each bit set in unsupported_flags */
for (f = unsupported_flags; f; f &= ~(1ULL << idx)) {
idx = lowbit64(f) - 1;
fprintf(stderr, " -%c", flag_to_arg[idx]);
}
fprintf(stderr, ". Try running a newer module.\n");
pool_list_free(list);
return (1);
}
for (;;) {
if ((npools = pool_list_count(list)) == 0)
(void) fprintf(stderr, gettext("no pools available\n"));
else {
/*
* If this is the first iteration and -y was supplied
* we skip any printing.
*/
boolean_t skip = (omit_since_boot &&
cb.cb_iteration == 0);
/*
* Refresh all statistics. This is done as an
* explicit step before calculating the maximum name
* width, so that any * configuration changes are
* properly accounted for.
*/
(void) pool_list_iter(list, B_FALSE, refresh_iostat,
&cb);
/*
* Iterate over all pools to determine the maximum width
* for the pool / device name column across all pools.
*/
cb.cb_namewidth = 0;
(void) pool_list_iter(list, B_FALSE, get_namewidth,
&cb);
if (timestamp_fmt != NODATE)
print_timestamp(timestamp_fmt);
if (cmd != NULL && cb.cb_verbose &&
!(cb.cb_flags & IOS_ANYHISTO_M)) {
cb.vcdl = all_pools_for_each_vdev_run(argc,
argv, cmd, g_zfs, cb.cb_vdev_names,
cb.cb_vdev_names_count, cb.cb_name_flags);
} else {
cb.vcdl = NULL;
}
/*
* If it's the first time and we're not skipping it,
* or either skip or verbose mode, print the header.
*
* The histogram code explicitly prints its header on
* every vdev, so skip this for histograms.
*/
if (((++cb.cb_iteration == 1 && !skip) ||
(skip != verbose)) &&
(!(cb.cb_flags & IOS_ANYHISTO_M)) &&
!cb.cb_scripted)
print_iostat_header(&cb);
if (skip) {
(void) fsleep(interval);
continue;
}
pool_list_iter(list, B_FALSE, print_iostat, &cb);
/*
* If there's more than one pool, and we're not in
* verbose mode (which prints a separator for us),
* then print a separator.
*
* In addition, if we're printing specific vdevs then
* we also want an ending separator.
*/
if (((npools > 1 && !verbose &&
!(cb.cb_flags & IOS_ANYHISTO_M)) ||
(!(cb.cb_flags & IOS_ANYHISTO_M) &&
cb.cb_vdev_names_count)) &&
!cb.cb_scripted) {
print_iostat_separator(&cb);
if (cb.vcdl != NULL)
print_cmd_columns(cb.vcdl, 1);
printf("\n");
}
if (cb.vcdl != NULL)
free_vdev_cmd_data_list(cb.vcdl);
}
/*
* Flush the output so that redirection to a file isn't buffered
* indefinitely.
*/
(void) fflush(stdout);
if (interval == 0)
break;
if (count != 0 && --count == 0)
break;
(void) fsleep(interval);
}
pool_list_free(list);
return (ret);
}
typedef struct list_cbdata {
boolean_t cb_verbose;
int cb_name_flags;
int cb_namewidth;
boolean_t cb_scripted;
zprop_list_t *cb_proplist;
boolean_t cb_literal;
} list_cbdata_t;
/*
* Given a list of columns to display, output appropriate headers for each one.
*/
static void
print_header(list_cbdata_t *cb)
{
zprop_list_t *pl = cb->cb_proplist;
char headerbuf[ZPOOL_MAXPROPLEN];
const char *header;
boolean_t first = B_TRUE;
boolean_t right_justify;
size_t width = 0;
for (; pl != NULL; pl = pl->pl_next) {
width = pl->pl_width;
if (first && cb->cb_verbose) {
/*
* Reset the width to accommodate the verbose listing
* of devices.
*/
width = cb->cb_namewidth;
}
if (!first)
(void) printf(" ");
else
first = B_FALSE;
right_justify = B_FALSE;
if (pl->pl_prop != ZPROP_INVAL) {
header = zpool_prop_column_name(pl->pl_prop);
right_justify = zpool_prop_align_right(pl->pl_prop);
} else {
int i;
for (i = 0; pl->pl_user_prop[i] != '\0'; i++)
headerbuf[i] = toupper(pl->pl_user_prop[i]);
headerbuf[i] = '\0';
header = headerbuf;
}
if (pl->pl_next == NULL && !right_justify)
(void) printf("%s", header);
else if (right_justify)
(void) printf("%*s", (int)width, header);
else
(void) printf("%-*s", (int)width, header);
}
(void) printf("\n");
}
/*
* Given a pool and a list of properties, print out all the properties according
* to the described layout.
*/
static void
print_pool(zpool_handle_t *zhp, list_cbdata_t *cb)
{
zprop_list_t *pl = cb->cb_proplist;
boolean_t first = B_TRUE;
char property[ZPOOL_MAXPROPLEN];
char *propstr;
boolean_t right_justify;
size_t width;
for (; pl != NULL; pl = pl->pl_next) {
width = pl->pl_width;
if (first && cb->cb_verbose) {
/*
* Reset the width to accommodate the verbose listing
* of devices.
*/
width = cb->cb_namewidth;
}
if (!first) {
if (cb->cb_scripted)
(void) printf("\t");
else
(void) printf(" ");
} else {
first = B_FALSE;
}
right_justify = B_FALSE;
if (pl->pl_prop != ZPROP_INVAL) {
if (zpool_get_prop(zhp, pl->pl_prop, property,
sizeof (property), NULL, cb->cb_literal) != 0)
propstr = "-";
else
propstr = property;
right_justify = zpool_prop_align_right(pl->pl_prop);
} else if ((zpool_prop_feature(pl->pl_user_prop) ||
zpool_prop_unsupported(pl->pl_user_prop)) &&
zpool_prop_get_feature(zhp, pl->pl_user_prop, property,
sizeof (property)) == 0) {
propstr = property;
} else {
propstr = "-";
}
/*
* If this is being called in scripted mode, or if this is the
* last column and it is left-justified, don't include a width
* format specifier.
*/
if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify))
(void) printf("%s", propstr);
else if (right_justify)
(void) printf("%*s", (int)width, propstr);
else
(void) printf("%-*s", (int)width, propstr);
}
(void) printf("\n");
}
static void
print_one_column(zpool_prop_t prop, uint64_t value, boolean_t scripted,
boolean_t valid, enum zfs_nicenum_format format)
{
char propval[64];
boolean_t fixed;
size_t width = zprop_width(prop, &fixed, ZFS_TYPE_POOL);
switch (prop) {
case ZPOOL_PROP_EXPANDSZ:
if (value == 0)
(void) strlcpy(propval, "-", sizeof (propval));
else
zfs_nicenum_format(value, propval, sizeof (propval),
format);
break;
case ZPOOL_PROP_FRAGMENTATION:
if (value == ZFS_FRAG_INVALID) {
(void) strlcpy(propval, "-", sizeof (propval));
} else if (format == ZFS_NICENUM_RAW) {
(void) snprintf(propval, sizeof (propval), "%llu",
(unsigned long long)value);
} else {
(void) snprintf(propval, sizeof (propval), "%llu%%",
(unsigned long long)value);
}
break;
case ZPOOL_PROP_CAPACITY:
if (format == ZFS_NICENUM_RAW)
(void) snprintf(propval, sizeof (propval), "%llu",
(unsigned long long)value);
else
(void) snprintf(propval, sizeof (propval), "%llu%%",
(unsigned long long)value);
break;
default:
zfs_nicenum_format(value, propval, sizeof (propval), format);
}
if (!valid)
(void) strlcpy(propval, "-", sizeof (propval));
if (scripted)
(void) printf("\t%s", propval);
else
(void) printf(" %*s", (int)width, propval);
}
void
print_list_stats(zpool_handle_t *zhp, const char *name, nvlist_t *nv,
list_cbdata_t *cb, int depth)
{
nvlist_t **child;
vdev_stat_t *vs;
uint_t c, children;
char *vname;
boolean_t scripted = cb->cb_scripted;
uint64_t islog = B_FALSE;
boolean_t haslog = B_FALSE;
char *dashes = "%-*s - - - - - -\n";
verify(nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
(uint64_t **)&vs, &c) == 0);
if (name != NULL) {
boolean_t toplevel = (vs->vs_space != 0);
uint64_t cap;
enum zfs_nicenum_format format;
if (cb->cb_literal)
format = ZFS_NICENUM_RAW;
else
format = ZFS_NICENUM_1024;
if (scripted)
(void) printf("\t%s", name);
else if (strlen(name) + depth > cb->cb_namewidth)
(void) printf("%*s%s", depth, "", name);
else
(void) printf("%*s%s%*s", depth, "", name,
(int)(cb->cb_namewidth - strlen(name) - depth), "");
/*
* Print the properties for the individual vdevs. Some
* properties are only applicable to toplevel vdevs. The
* 'toplevel' boolean value is passed to the print_one_column()
* to indicate that the value is valid.
*/
print_one_column(ZPOOL_PROP_SIZE, vs->vs_space, scripted,
toplevel, format);
print_one_column(ZPOOL_PROP_ALLOCATED, vs->vs_alloc, scripted,
toplevel, format);
print_one_column(ZPOOL_PROP_FREE, vs->vs_space - vs->vs_alloc,
scripted, toplevel, format);
print_one_column(ZPOOL_PROP_EXPANDSZ, vs->vs_esize, scripted,
B_TRUE, format);
print_one_column(ZPOOL_PROP_FRAGMENTATION,
vs->vs_fragmentation, scripted,
(vs->vs_fragmentation != ZFS_FRAG_INVALID && toplevel),
format);
cap = (vs->vs_space == 0) ? 0 :
(vs->vs_alloc * 100 / vs->vs_space);
print_one_column(ZPOOL_PROP_CAPACITY, cap, scripted, toplevel,
format);
(void) printf("\n");
}
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
&child, &children) != 0)
return;
for (c = 0; c < children; c++) {
uint64_t ishole = B_FALSE;
if (nvlist_lookup_uint64(child[c],
ZPOOL_CONFIG_IS_HOLE, &ishole) == 0 && ishole)
continue;
if (nvlist_lookup_uint64(child[c],
ZPOOL_CONFIG_IS_LOG, &islog) == 0 && islog) {
haslog = B_TRUE;
continue;
}
vname = zpool_vdev_name(g_zfs, zhp, child[c],
cb->cb_name_flags);
print_list_stats(zhp, vname, child[c], cb, depth + 2);
free(vname);
}
if (haslog == B_TRUE) {
/* LINTED E_SEC_PRINTF_VAR_FMT */
(void) printf(dashes, cb->cb_namewidth, "log");
for (c = 0; c < children; c++) {
if (nvlist_lookup_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
&islog) != 0 || !islog)
continue;
vname = zpool_vdev_name(g_zfs, zhp, child[c],
cb->cb_name_flags);
print_list_stats(zhp, vname, child[c], cb, depth + 2);
free(vname);
}
}
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE,
&child, &children) == 0 && children > 0) {
/* LINTED E_SEC_PRINTF_VAR_FMT */
(void) printf(dashes, cb->cb_namewidth, "cache");
for (c = 0; c < children; c++) {
vname = zpool_vdev_name(g_zfs, zhp, child[c],
cb->cb_name_flags);
print_list_stats(zhp, vname, child[c], cb, depth + 2);
free(vname);
}
}
if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES, &child,
&children) == 0 && children > 0) {
/* LINTED E_SEC_PRINTF_VAR_FMT */
(void) printf(dashes, cb->cb_namewidth, "spare");
for (c = 0; c < children; c++) {
vname = zpool_vdev_name(g_zfs, zhp, child[c],
cb->cb_name_flags);
print_list_stats(zhp, vname, child[c], cb, depth + 2);
free(vname);
}
}
}
/*
* Generic callback function to list a pool.
*/
int
list_callback(zpool_handle_t *zhp, void *data)
{
list_cbdata_t *cbp = data;
nvlist_t *config;
nvlist_t *nvroot;
config = zpool_get_config(zhp, NULL);
print_pool(zhp, cbp);
if (!cbp->cb_verbose)
return (0);
verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
&nvroot) == 0);
print_list_stats(zhp, NULL, nvroot, cbp, 0);
return (0);
}
/*
* zpool list [-gHLpP] [-o prop[,prop]*] [-T d|u] [pool] ... [interval [count]]
*
* -g Display guid for individual vdev name.
* -H Scripted mode. Don't display headers, and separate properties
* by a single tab.
* -L Follow links when resolving vdev path name.
* -o List of properties to display. Defaults to
* "name,size,allocated,free,expandsize,fragmentation,capacity,"
* "dedupratio,health,altroot"
* -p Display values in parsable (exact) format.
* -P Display full path for vdev name.
* -T Display a timestamp in date(1) or Unix format
*
* List all pools in the system, whether or not they're healthy. Output space
* statistics for each one, as well as health status summary.
*/
int
zpool_do_list(int argc, char **argv)
{
int c;
int ret = 0;
list_cbdata_t cb = { 0 };
static char default_props[] =
"name,size,allocated,free,expandsize,fragmentation,capacity,"
"dedupratio,health,altroot";
char *props = default_props;
float interval = 0;
unsigned long count = 0;
zpool_list_t *list;
boolean_t first = B_TRUE;
/* check options */
while ((c = getopt(argc, argv, ":gHLo:pPT:v")) != -1) {
switch (c) {
case 'g':
cb.cb_name_flags |= VDEV_NAME_GUID;
break;
case 'H':
cb.cb_scripted = B_TRUE;
break;
case 'L':
cb.cb_name_flags |= VDEV_NAME_FOLLOW_LINKS;
break;
case 'o':
props = optarg;
break;
case 'P':
cb.cb_name_flags |= VDEV_NAME_PATH;
break;
case 'p':
cb.cb_literal = B_TRUE;
break;
case 'T':
get_timestamp_arg(*optarg);
break;
case 'v':
cb.cb_verbose = B_TRUE;
break;
case ':':
(void) fprintf(stderr, gettext("missing argument for "
"'%c' option\n"), optopt);
usage(B_FALSE);
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
get_interval_count(&argc, argv, &interval, &count);
if (zprop_get_list(g_zfs, props, &cb.cb_proplist, ZFS_TYPE_POOL) != 0)
usage(B_FALSE);
for (;;) {
if ((list = pool_list_get(argc, argv, &cb.cb_proplist,
&ret)) == NULL)
return (1);
if (pool_list_count(list) == 0)
break;
if (timestamp_fmt != NODATE)
print_timestamp(timestamp_fmt);
if (!cb.cb_scripted && (first || cb.cb_verbose)) {
print_header(&cb);
first = B_FALSE;
}
ret = pool_list_iter(list, B_TRUE, list_callback, &cb);
if (interval == 0)
break;
if (count != 0 && --count == 0)
break;
pool_list_free(list);
(void) fsleep(interval);
}
if (argc == 0 && !cb.cb_scripted && pool_list_count(list) == 0) {
(void) printf(gettext("no pools available\n"));
ret = 0;
}
pool_list_free(list);
zprop_free_list(cb.cb_proplist);
return (ret);
}
static int
zpool_do_attach_or_replace(int argc, char **argv, int replacing)
{
boolean_t force = B_FALSE;
int c;
nvlist_t *nvroot;
char *poolname, *old_disk, *new_disk;
zpool_handle_t *zhp;
nvlist_t *props = NULL;
char *propval;
int ret;
/* check options */
while ((c = getopt(argc, argv, "fo:")) != -1) {
switch (c) {
case 'f':
force = B_TRUE;
break;
case 'o':
if ((propval = strchr(optarg, '=')) == NULL) {
(void) fprintf(stderr, gettext("missing "
"'=' for -o option\n"));
usage(B_FALSE);
}
*propval = '\0';
propval++;
if ((strcmp(optarg, ZPOOL_CONFIG_ASHIFT) != 0) ||
(add_prop_list(optarg, propval, &props, B_TRUE)))
usage(B_FALSE);
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
/* get pool name and check number of arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name argument\n"));
usage(B_FALSE);
}
poolname = argv[0];
if (argc < 2) {
(void) fprintf(stderr,
gettext("missing <device> specification\n"));
usage(B_FALSE);
}
old_disk = argv[1];
if (argc < 3) {
if (!replacing) {
(void) fprintf(stderr,
gettext("missing <new_device> specification\n"));
usage(B_FALSE);
}
new_disk = old_disk;
argc -= 1;
argv += 1;
} else {
new_disk = argv[2];
argc -= 2;
argv += 2;
}
if (argc > 1) {
(void) fprintf(stderr, gettext("too many arguments\n"));
usage(B_FALSE);
}
if ((zhp = zpool_open(g_zfs, poolname)) == NULL) {
nvlist_free(props);
return (1);
}
if (zpool_get_config(zhp, NULL) == NULL) {
(void) fprintf(stderr, gettext("pool '%s' is unavailable\n"),
poolname);
zpool_close(zhp);
nvlist_free(props);
return (1);
}
/* unless manually specified use "ashift" pool property (if set) */
if (!nvlist_exists(props, ZPOOL_CONFIG_ASHIFT)) {
int intval;
zprop_source_t src;
char strval[ZPOOL_MAXPROPLEN];
intval = zpool_get_prop_int(zhp, ZPOOL_PROP_ASHIFT, &src);
if (src != ZPROP_SRC_DEFAULT) {
(void) sprintf(strval, "%" PRId32, intval);
verify(add_prop_list(ZPOOL_CONFIG_ASHIFT, strval,
&props, B_TRUE) == 0);
}
}
nvroot = make_root_vdev(zhp, props, force, B_FALSE, replacing, B_FALSE,
argc, argv);
if (nvroot == NULL) {
zpool_close(zhp);
nvlist_free(props);
return (1);
}
ret = zpool_vdev_attach(zhp, old_disk, new_disk, nvroot, replacing);
nvlist_free(props);
nvlist_free(nvroot);
zpool_close(zhp);
return (ret);
}
/*
* zpool replace [-f] <pool> <device> <new_device>
*
* -f Force attach, even if <new_device> appears to be in use.
*
* Replace <device> with <new_device>.
*/
/* ARGSUSED */
int
zpool_do_replace(int argc, char **argv)
{
return (zpool_do_attach_or_replace(argc, argv, B_TRUE));
}
/*
* zpool attach [-f] [-o property=value] <pool> <device> <new_device>
*
* -f Force attach, even if <new_device> appears to be in use.
* -o Set property=value.
*
* Attach <new_device> to the mirror containing <device>. If <device> is not
* part of a mirror, then <device> will be transformed into a mirror of
* <device> and <new_device>. In either case, <new_device> will begin life
* with a DTL of [0, now], and will immediately begin to resilver itself.
*/
int
zpool_do_attach(int argc, char **argv)
{
return (zpool_do_attach_or_replace(argc, argv, B_FALSE));
}
/*
* zpool detach [-f] <pool> <device>
*
* -f Force detach of <device>, even if DTLs argue against it
* (not supported yet)
*
* Detach a device from a mirror. The operation will be refused if <device>
* is the last device in the mirror, or if the DTLs indicate that this device
* has the only valid copy of some data.
*/
/* ARGSUSED */
int
zpool_do_detach(int argc, char **argv)
{
int c;
char *poolname, *path;
zpool_handle_t *zhp;
int ret;
/* check options */
while ((c = getopt(argc, argv, "f")) != -1) {
switch (c) {
case 'f':
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
/* get pool name and check number of arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name argument\n"));
usage(B_FALSE);
}
if (argc < 2) {
(void) fprintf(stderr,
gettext("missing <device> specification\n"));
usage(B_FALSE);
}
poolname = argv[0];
path = argv[1];
if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
return (1);
ret = zpool_vdev_detach(zhp, path);
zpool_close(zhp);
return (ret);
}
/*
* zpool split [-gLnP] [-o prop=val] ...
* [-o mntopt] ...
* [-R altroot] <pool> <newpool> [<device> ...]
*
* -g Display guid for individual vdev name.
* -L Follow links when resolving vdev path name.
* -n Do not split the pool, but display the resulting layout if
* it were to be split.
* -o Set property=value, or set mount options.
* -P Display full path for vdev name.
* -R Mount the split-off pool under an alternate root.
* -l Load encryption keys while importing.
*
* Splits the named pool and gives it the new pool name. Devices to be split
* off may be listed, provided that no more than one device is specified
* per top-level vdev mirror. The newly split pool is left in an exported
* state unless -R is specified.
*
* Restrictions: the top-level of the pool pool must only be made up of
* mirrors; all devices in the pool must be healthy; no device may be
* undergoing a resilvering operation.
*/
int
zpool_do_split(int argc, char **argv)
{
char *srcpool, *newpool, *propval;
char *mntopts = NULL;
splitflags_t flags;
int c, ret = 0;
boolean_t loadkeys = B_FALSE;
zpool_handle_t *zhp;
nvlist_t *config, *props = NULL;
flags.dryrun = B_FALSE;
flags.import = B_FALSE;
flags.name_flags = 0;
/* check options */
while ((c = getopt(argc, argv, ":gLR:lno:P")) != -1) {
switch (c) {
case 'g':
flags.name_flags |= VDEV_NAME_GUID;
break;
case 'L':
flags.name_flags |= VDEV_NAME_FOLLOW_LINKS;
break;
case 'R':
flags.import = B_TRUE;
if (add_prop_list(
zpool_prop_to_name(ZPOOL_PROP_ALTROOT), optarg,
&props, B_TRUE) != 0) {
nvlist_free(props);
usage(B_FALSE);
}
break;
case 'l':
loadkeys = B_TRUE;
break;
case 'n':
flags.dryrun = B_TRUE;
break;
case 'o':
if ((propval = strchr(optarg, '=')) != NULL) {
*propval = '\0';
propval++;
if (add_prop_list(optarg, propval,
&props, B_TRUE) != 0) {
nvlist_free(props);
usage(B_FALSE);
}
} else {
mntopts = optarg;
}
break;
case 'P':
flags.name_flags |= VDEV_NAME_PATH;
break;
case ':':
(void) fprintf(stderr, gettext("missing argument for "
"'%c' option\n"), optopt);
usage(B_FALSE);
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
break;
}
}
if (!flags.import && mntopts != NULL) {
(void) fprintf(stderr, gettext("setting mntopts is only "
"valid when importing the pool\n"));
usage(B_FALSE);
}
if (!flags.import && loadkeys) {
(void) fprintf(stderr, gettext("loading keys is only "
"valid when importing the pool\n"));
usage(B_FALSE);
}
argc -= optind;
argv += optind;
if (argc < 1) {
(void) fprintf(stderr, gettext("Missing pool name\n"));
usage(B_FALSE);
}
if (argc < 2) {
(void) fprintf(stderr, gettext("Missing new pool name\n"));
usage(B_FALSE);
}
srcpool = argv[0];
newpool = argv[1];
argc -= 2;
argv += 2;
if ((zhp = zpool_open(g_zfs, srcpool)) == NULL) {
nvlist_free(props);
return (1);
}
config = split_mirror_vdev(zhp, newpool, props, flags, argc, argv);
if (config == NULL) {
ret = 1;
} else {
if (flags.dryrun) {
(void) printf(gettext("would create '%s' with the "
"following layout:\n\n"), newpool);
print_vdev_tree(NULL, newpool, config, 0, B_FALSE,
flags.name_flags);
}
}
zpool_close(zhp);
if (ret != 0 || flags.dryrun || !flags.import) {
nvlist_free(config);
nvlist_free(props);
return (ret);
}
/*
* The split was successful. Now we need to open the new
* pool and import it.
*/
if ((zhp = zpool_open_canfail(g_zfs, newpool)) == NULL) {
nvlist_free(config);
nvlist_free(props);
return (1);
}
if (loadkeys) {
ret = zfs_crypto_attempt_load_keys(g_zfs, newpool);
if (ret != 0)
ret = 1;
}
if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL &&
zpool_enable_datasets(zhp, mntopts, 0) != 0) {
ret = 1;
(void) fprintf(stderr, gettext("Split was successful, but "
"the datasets could not all be mounted\n"));
(void) fprintf(stderr, gettext("Try doing '%s' with a "
"different altroot\n"), "zpool import");
}
zpool_close(zhp);
nvlist_free(config);
nvlist_free(props);
return (ret);
}
/*
* zpool online <pool> <device> ...
*/
int
zpool_do_online(int argc, char **argv)
{
int c, i;
char *poolname;
zpool_handle_t *zhp;
int ret = 0;
vdev_state_t newstate;
int flags = 0;
/* check options */
while ((c = getopt(argc, argv, "et")) != -1) {
switch (c) {
case 'e':
flags |= ZFS_ONLINE_EXPAND;
break;
case 't':
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
/* get pool name and check number of arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name\n"));
usage(B_FALSE);
}
if (argc < 2) {
(void) fprintf(stderr, gettext("missing device name\n"));
usage(B_FALSE);
}
poolname = argv[0];
if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
return (1);
for (i = 1; i < argc; i++) {
if (zpool_vdev_online(zhp, argv[i], flags, &newstate) == 0) {
if (newstate != VDEV_STATE_HEALTHY) {
(void) printf(gettext("warning: device '%s' "
"onlined, but remains in faulted state\n"),
argv[i]);
if (newstate == VDEV_STATE_FAULTED)
(void) printf(gettext("use 'zpool "
"clear' to restore a faulted "
"device\n"));
else
(void) printf(gettext("use 'zpool "
"replace' to replace devices "
"that are no longer present\n"));
}
} else {
ret = 1;
}
}
zpool_close(zhp);
return (ret);
}
/*
* zpool offline [-ft] <pool> <device> ...
*
* -f Force the device into a faulted state.
*
* -t Only take the device off-line temporarily. The offline/faulted
* state will not be persistent across reboots.
*/
/* ARGSUSED */
int
zpool_do_offline(int argc, char **argv)
{
int c, i;
char *poolname;
zpool_handle_t *zhp;
int ret = 0;
boolean_t istmp = B_FALSE;
boolean_t fault = B_FALSE;
/* check options */
while ((c = getopt(argc, argv, "ft")) != -1) {
switch (c) {
case 'f':
fault = B_TRUE;
break;
case 't':
istmp = B_TRUE;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
/* get pool name and check number of arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name\n"));
usage(B_FALSE);
}
if (argc < 2) {
(void) fprintf(stderr, gettext("missing device name\n"));
usage(B_FALSE);
}
poolname = argv[0];
if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
return (1);
for (i = 1; i < argc; i++) {
if (fault) {
uint64_t guid = zpool_vdev_path_to_guid(zhp, argv[i]);
vdev_aux_t aux;
if (istmp == B_FALSE) {
/* Force the fault to persist across imports */
aux = VDEV_AUX_EXTERNAL_PERSIST;
} else {
aux = VDEV_AUX_EXTERNAL;
}
if (guid == 0 || zpool_vdev_fault(zhp, guid, aux) != 0)
ret = 1;
} else {
if (zpool_vdev_offline(zhp, argv[i], istmp) != 0)
ret = 1;
}
}
zpool_close(zhp);
return (ret);
}
/*
* zpool clear <pool> [device]
*
* Clear all errors associated with a pool or a particular device.
*/
int
zpool_do_clear(int argc, char **argv)
{
int c;
int ret = 0;
boolean_t dryrun = B_FALSE;
boolean_t do_rewind = B_FALSE;
boolean_t xtreme_rewind = B_FALSE;
uint32_t rewind_policy = ZPOOL_NO_REWIND;
nvlist_t *policy = NULL;
zpool_handle_t *zhp;
char *pool, *device;
/* check options */
while ((c = getopt(argc, argv, "FnX")) != -1) {
switch (c) {
case 'F':
do_rewind = B_TRUE;
break;
case 'n':
dryrun = B_TRUE;
break;
case 'X':
xtreme_rewind = B_TRUE;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name\n"));
usage(B_FALSE);
}
if (argc > 2) {
(void) fprintf(stderr, gettext("too many arguments\n"));
usage(B_FALSE);
}
if ((dryrun || xtreme_rewind) && !do_rewind) {
(void) fprintf(stderr,
gettext("-n or -X only meaningful with -F\n"));
usage(B_FALSE);
}
if (dryrun)
rewind_policy = ZPOOL_TRY_REWIND;
else if (do_rewind)
rewind_policy = ZPOOL_DO_REWIND;
if (xtreme_rewind)
rewind_policy |= ZPOOL_EXTREME_REWIND;
/* In future, further rewind policy choices can be passed along here */
if (nvlist_alloc(&policy, NV_UNIQUE_NAME, 0) != 0 ||
nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind_policy) != 0)
return (1);
pool = argv[0];
device = argc == 2 ? argv[1] : NULL;
if ((zhp = zpool_open_canfail(g_zfs, pool)) == NULL) {
nvlist_free(policy);
return (1);
}
if (zpool_clear(zhp, device, policy) != 0)
ret = 1;
zpool_close(zhp);
nvlist_free(policy);
return (ret);
}
/*
* zpool reguid <pool>
*/
int
zpool_do_reguid(int argc, char **argv)
{
int c;
char *poolname;
zpool_handle_t *zhp;
int ret = 0;
/* check options */
while ((c = getopt(argc, argv, "")) != -1) {
switch (c) {
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
/* get pool name and check number of arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name\n"));
usage(B_FALSE);
}
if (argc > 1) {
(void) fprintf(stderr, gettext("too many arguments\n"));
usage(B_FALSE);
}
poolname = argv[0];
if ((zhp = zpool_open(g_zfs, poolname)) == NULL)
return (1);
ret = zpool_reguid(zhp);
zpool_close(zhp);
return (ret);
}
/*
* zpool reopen <pool>
*
* Reopen the pool so that the kernel can update the sizes of all vdevs.
*/
int
zpool_do_reopen(int argc, char **argv)
{
int c;
int ret = 0;
boolean_t scrub_restart = B_TRUE;
/* check options */
while ((c = getopt(argc, argv, "n")) != -1) {
switch (c) {
case 'n':
scrub_restart = B_FALSE;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
/* if argc == 0 we will execute zpool_reopen_one on all pools */
ret = for_each_pool(argc, argv, B_TRUE, NULL, zpool_reopen_one,
&scrub_restart);
return (ret);
}
typedef struct scrub_cbdata {
int cb_type;
int cb_argc;
char **cb_argv;
pool_scrub_cmd_t cb_scrub_cmd;
} scrub_cbdata_t;
int
scrub_callback(zpool_handle_t *zhp, void *data)
{
scrub_cbdata_t *cb = data;
int err;
/*
* Ignore faulted pools.
*/
if (zpool_get_state(zhp) == POOL_STATE_UNAVAIL) {
(void) fprintf(stderr, gettext("cannot scrub '%s': pool is "
"currently unavailable\n"), zpool_get_name(zhp));
return (1);
}
err = zpool_scan(zhp, cb->cb_type, cb->cb_scrub_cmd);
return (err != 0);
}
/*
* zpool scrub [-s | -p] <pool> ...
*
* -s Stop. Stops any in-progress scrub.
* -p Pause. Pause in-progress scrub.
*/
int
zpool_do_scrub(int argc, char **argv)
{
int c;
scrub_cbdata_t cb;
cb.cb_type = POOL_SCAN_SCRUB;
cb.cb_scrub_cmd = POOL_SCRUB_NORMAL;
/* check options */
while ((c = getopt(argc, argv, "sp")) != -1) {
switch (c) {
case 's':
cb.cb_type = POOL_SCAN_NONE;
break;
case 'p':
cb.cb_scrub_cmd = POOL_SCRUB_PAUSE;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
if (cb.cb_type == POOL_SCAN_NONE &&
cb.cb_scrub_cmd == POOL_SCRUB_PAUSE) {
(void) fprintf(stderr, gettext("invalid option combination: "
"-s and -p are mutually exclusive\n"));
usage(B_FALSE);
}
cb.cb_argc = argc;
cb.cb_argv = argv;
argc -= optind;
argv += optind;
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool name argument\n"));
usage(B_FALSE);
}
return (for_each_pool(argc, argv, B_TRUE, NULL, scrub_callback, &cb));
}
/*
* Print out detailed scrub status.
*/
void
print_scan_status(pool_scan_stat_t *ps)
{
time_t start, end, pause;
uint64_t total_secs_left;
uint64_t elapsed, secs_left, mins_left, hours_left, days_left;
uint64_t pass_scanned, scanned, pass_issued, issued, total;
uint64_t scan_rate, issue_rate;
double fraction_done;
char processed_buf[7], scanned_buf[7], issued_buf[7], total_buf[7];
char srate_buf[7], irate_buf[7];
(void) printf(gettext(" scan: "));
/* If there's never been a scan, there's not much to say. */
if (ps == NULL || ps->pss_func == POOL_SCAN_NONE ||
ps->pss_func >= POOL_SCAN_FUNCS) {
(void) printf(gettext("none requested\n"));
return;
}
start = ps->pss_start_time;
end = ps->pss_end_time;
pause = ps->pss_pass_scrub_pause;
zfs_nicebytes(ps->pss_processed, processed_buf, sizeof (processed_buf));
assert(ps->pss_func == POOL_SCAN_SCRUB ||
ps->pss_func == POOL_SCAN_RESILVER);
/* Scan is finished or canceled. */
if (ps->pss_state == DSS_FINISHED) {
total_secs_left = end - start;
days_left = total_secs_left / 60 / 60 / 24;
hours_left = (total_secs_left / 60 / 60) % 24;
mins_left = (total_secs_left / 60) % 60;
secs_left = (total_secs_left % 60);
if (ps->pss_func == POOL_SCAN_SCRUB) {
(void) printf(gettext("scrub repaired %s "
"in %llu days %02llu:%02llu:%02llu "
"with %llu errors on %s"), processed_buf,
(u_longlong_t)days_left, (u_longlong_t)hours_left,
(u_longlong_t)mins_left, (u_longlong_t)secs_left,
(u_longlong_t)ps->pss_errors, ctime(&end));
} else if (ps->pss_func == POOL_SCAN_RESILVER) {
(void) printf(gettext("resilvered %s "
"in %llu days %02llu:%02llu:%02llu "
"with %llu errors on %s"), processed_buf,
(u_longlong_t)days_left, (u_longlong_t)hours_left,
(u_longlong_t)mins_left, (u_longlong_t)secs_left,
(u_longlong_t)ps->pss_errors, ctime(&end));
}
return;
} else if (ps->pss_state == DSS_CANCELED) {
if (ps->pss_func == POOL_SCAN_SCRUB) {
(void) printf(gettext("scrub canceled on %s"),
ctime(&end));
} else if (ps->pss_func == POOL_SCAN_RESILVER) {
(void) printf(gettext("resilver canceled on %s"),
ctime(&end));
}
return;
}
assert(ps->pss_state == DSS_SCANNING);
/* Scan is in progress. Resilvers can't be paused. */
if (ps->pss_func == POOL_SCAN_SCRUB) {
if (pause == 0) {
(void) printf(gettext("scrub in progress since %s"),
ctime(&start));
} else {
(void) printf(gettext("scrub paused since %s"),
ctime(&pause));
(void) printf(gettext("\tscrub started on %s"),
ctime(&start));
}
} else if (ps->pss_func == POOL_SCAN_RESILVER) {
(void) printf(gettext("resilver in progress since %s"),
ctime(&start));
}
scanned = ps->pss_examined;
pass_scanned = ps->pss_pass_exam;
issued = ps->pss_issued;
pass_issued = ps->pss_pass_issued;
total = ps->pss_to_examine;
/* we are only done with a block once we have issued the IO for it */
fraction_done = (double)issued / total;
/* elapsed time for this pass, rounding up to 1 if it's 0 */
elapsed = time(NULL) - ps->pss_pass_start;
elapsed -= ps->pss_pass_scrub_spent_paused;
elapsed = (elapsed != 0) ? elapsed : 1;
scan_rate = pass_scanned / elapsed;
issue_rate = pass_issued / elapsed;
total_secs_left = (issue_rate != 0) ?
((total - issued) / issue_rate) : UINT64_MAX;
days_left = total_secs_left / 60 / 60 / 24;
hours_left = (total_secs_left / 60 / 60) % 24;
mins_left = (total_secs_left / 60) % 60;
secs_left = (total_secs_left % 60);
/* format all of the numbers we will be reporting */
zfs_nicebytes(scanned, scanned_buf, sizeof (scanned_buf));
zfs_nicebytes(issued, issued_buf, sizeof (issued_buf));
zfs_nicebytes(total, total_buf, sizeof (total_buf));
zfs_nicebytes(scan_rate, srate_buf, sizeof (srate_buf));
zfs_nicebytes(issue_rate, irate_buf, sizeof (irate_buf));
/* do not print estimated time if we have a paused scrub */
if (pause == 0) {
(void) printf(gettext("\t%s scanned at %s/s, "
"%s issued at %s/s, %s total\n"),
scanned_buf, srate_buf, issued_buf, irate_buf, total_buf);
} else {
(void) printf(gettext("\t%s scanned, %s issued, %s total\n"),
scanned_buf, issued_buf, total_buf);
}
if (ps->pss_func == POOL_SCAN_RESILVER) {
(void) printf(gettext("\t%s resilvered, %.2f%% done"),
processed_buf, 100 * fraction_done);
} else if (ps->pss_func == POOL_SCAN_SCRUB) {
(void) printf(gettext("\t%s repaired, %.2f%% done"),
processed_buf, 100 * fraction_done);
}
if (pause == 0) {
if (issue_rate >= 10 * 1024 * 1024) {
(void) printf(gettext(", %llu days "
"%02llu:%02llu:%02llu to go\n"),
(u_longlong_t)days_left, (u_longlong_t)hours_left,
(u_longlong_t)mins_left, (u_longlong_t)secs_left);
} else {
(void) printf(gettext(", no estimated "
"completion time\n"));
}
} else {
(void) printf(gettext("\n"));
}
}
static void
print_error_log(zpool_handle_t *zhp)
{
nvlist_t *nverrlist = NULL;
nvpair_t *elem;
char *pathname;
size_t len = MAXPATHLEN * 2;
if (zpool_get_errlog(zhp, &nverrlist) != 0)
return;
(void) printf("errors: Permanent errors have been "
"detected in the following files:\n\n");
pathname = safe_malloc(len);
elem = NULL;
while ((elem = nvlist_next_nvpair(nverrlist, elem)) != NULL) {
nvlist_t *nv;
uint64_t dsobj, obj;
verify(nvpair_value_nvlist(elem, &nv) == 0);
verify(nvlist_lookup_uint64(nv, ZPOOL_ERR_DATASET,
&dsobj) == 0);
verify(nvlist_lookup_uint64(nv, ZPOOL_ERR_OBJECT,
&obj) == 0);
zpool_obj_to_path(zhp, dsobj, obj, pathname, len);
(void) printf("%7s %s\n", "", pathname);
}
free(pathname);
nvlist_free(nverrlist);
}
static void
print_spares(zpool_handle_t *zhp, status_cbdata_t *cb, nvlist_t **spares,
uint_t nspares)
{
uint_t i;
char *name;
if (nspares == 0)
return;
(void) printf(gettext("\tspares\n"));
for (i = 0; i < nspares; i++) {
name = zpool_vdev_name(g_zfs, zhp, spares[i],
cb->cb_name_flags);
print_status_config(zhp, cb, name, spares[i], 2, B_TRUE);
free(name);
}
}
static void
print_l2cache(zpool_handle_t *zhp, status_cbdata_t *cb, nvlist_t **l2cache,
uint_t nl2cache)
{
uint_t i;
char *name;
if (nl2cache == 0)
return;
(void) printf(gettext("\tcache\n"));
for (i = 0; i < nl2cache; i++) {
name = zpool_vdev_name(g_zfs, zhp, l2cache[i],
cb->cb_name_flags);
print_status_config(zhp, cb, name, l2cache[i], 2, B_FALSE);
free(name);
}
}
static void
print_dedup_stats(nvlist_t *config)
{
ddt_histogram_t *ddh;
ddt_stat_t *dds;
ddt_object_t *ddo;
uint_t c;
char dspace[6], mspace[6];
/*
* If the pool was faulted then we may not have been able to
* obtain the config. Otherwise, if we have anything in the dedup
* table continue processing the stats.
*/
if (nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_OBJ_STATS,
(uint64_t **)&ddo, &c) != 0)
return;
(void) printf("\n");
(void) printf(gettext(" dedup: "));
if (ddo->ddo_count == 0) {
(void) printf(gettext("no DDT entries\n"));
return;
}
zfs_nicebytes(ddo->ddo_dspace, dspace, sizeof (dspace));
zfs_nicebytes(ddo->ddo_mspace, mspace, sizeof (mspace));
(void) printf("DDT entries %llu, size %s on disk, %s in core\n",
(u_longlong_t)ddo->ddo_count,
dspace,
mspace);
verify(nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_STATS,
(uint64_t **)&dds, &c) == 0);
verify(nvlist_lookup_uint64_array(config, ZPOOL_CONFIG_DDT_HISTOGRAM,
(uint64_t **)&ddh, &c) == 0);
zpool_dump_ddt(dds, ddh);
}
/*
* Display a summary of pool status. Displays a summary such as:
*
* pool: tank
* status: DEGRADED
* reason: One or more devices ...
* see: http://zfsonlinux.org/msg/ZFS-xxxx-01
* config:
* mirror DEGRADED
* c1t0d0 OK
* c2t0d0 UNAVAIL
*
* When given the '-v' option, we print out the complete config. If the '-e'
* option is specified, then we print out error rate information as well.
*/
int
status_callback(zpool_handle_t *zhp, void *data)
{
status_cbdata_t *cbp = data;
nvlist_t *config, *nvroot;
char *msgid;
zpool_status_t reason;
zpool_errata_t errata;
const char *health;
uint_t c;
vdev_stat_t *vs;
config = zpool_get_config(zhp, NULL);
reason = zpool_get_status(zhp, &msgid, &errata);
cbp->cb_count++;
/*
* If we were given 'zpool status -x', only report those pools with
* problems.
*/
if (cbp->cb_explain &&
(reason == ZPOOL_STATUS_OK ||
reason == ZPOOL_STATUS_VERSION_OLDER ||
reason == ZPOOL_STATUS_FEAT_DISABLED)) {
if (!cbp->cb_allpools) {
(void) printf(gettext("pool '%s' is healthy\n"),
zpool_get_name(zhp));
if (cbp->cb_first)
cbp->cb_first = B_FALSE;
}
return (0);
}
if (cbp->cb_first)
cbp->cb_first = B_FALSE;
else
(void) printf("\n");
verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
&nvroot) == 0);
verify(nvlist_lookup_uint64_array(nvroot, ZPOOL_CONFIG_VDEV_STATS,
(uint64_t **)&vs, &c) == 0);
health = zpool_state_to_name(vs->vs_state, vs->vs_aux);
(void) printf(gettext(" pool: %s\n"), zpool_get_name(zhp));
(void) printf(gettext(" state: %s\n"), health);
switch (reason) {
case ZPOOL_STATUS_MISSING_DEV_R:
(void) printf(gettext("status: One or more devices could not "
"be opened. Sufficient replicas exist for\n\tthe pool to "
"continue functioning in a degraded state.\n"));
(void) printf(gettext("action: Attach the missing device and "
"online it using 'zpool online'.\n"));
break;
case ZPOOL_STATUS_MISSING_DEV_NR:
(void) printf(gettext("status: One or more devices could not "
"be opened. There are insufficient\n\treplicas for the "
"pool to continue functioning.\n"));
(void) printf(gettext("action: Attach the missing device and "
"online it using 'zpool online'.\n"));
break;
case ZPOOL_STATUS_CORRUPT_LABEL_R:
(void) printf(gettext("status: One or more devices could not "
"be used because the label is missing or\n\tinvalid. "
"Sufficient replicas exist for the pool to continue\n\t"
"functioning in a degraded state.\n"));
(void) printf(gettext("action: Replace the device using "
"'zpool replace'.\n"));
break;
case ZPOOL_STATUS_CORRUPT_LABEL_NR:
(void) printf(gettext("status: One or more devices could not "
"be used because the label is missing \n\tor invalid. "
"There are insufficient replicas for the pool to "
"continue\n\tfunctioning.\n"));
zpool_explain_recover(zpool_get_handle(zhp),
zpool_get_name(zhp), reason, config);
break;
case ZPOOL_STATUS_FAILING_DEV:
(void) printf(gettext("status: One or more devices has "
"experienced an unrecoverable error. An\n\tattempt was "
"made to correct the error. Applications are "
"unaffected.\n"));
(void) printf(gettext("action: Determine if the device needs "
"to be replaced, and clear the errors\n\tusing "
"'zpool clear' or replace the device with 'zpool "
"replace'.\n"));
break;
case ZPOOL_STATUS_OFFLINE_DEV:
(void) printf(gettext("status: One or more devices has "
"been taken offline by the administrator.\n\tSufficient "
"replicas exist for the pool to continue functioning in "
"a\n\tdegraded state.\n"));
(void) printf(gettext("action: Online the device using "
"'zpool online' or replace the device with\n\t'zpool "
"replace'.\n"));
break;
case ZPOOL_STATUS_REMOVED_DEV:
(void) printf(gettext("status: One or more devices has "
"been removed by the administrator.\n\tSufficient "
"replicas exist for the pool to continue functioning in "
"a\n\tdegraded state.\n"));
(void) printf(gettext("action: Online the device using "
"'zpool online' or replace the device with\n\t'zpool "
"replace'.\n"));
break;
case ZPOOL_STATUS_RESILVERING:
(void) printf(gettext("status: One or more devices is "
"currently being resilvered. The pool will\n\tcontinue "
"to function, possibly in a degraded state.\n"));
(void) printf(gettext("action: Wait for the resilver to "
"complete.\n"));
break;
case ZPOOL_STATUS_CORRUPT_DATA:
(void) printf(gettext("status: One or more devices has "
"experienced an error resulting in data\n\tcorruption. "
"Applications may be affected.\n"));
(void) printf(gettext("action: Restore the file in question "
"if possible. Otherwise restore the\n\tentire pool from "
"backup.\n"));
break;
case ZPOOL_STATUS_CORRUPT_POOL:
(void) printf(gettext("status: The pool metadata is corrupted "
"and the pool cannot be opened.\n"));
zpool_explain_recover(zpool_get_handle(zhp),
zpool_get_name(zhp), reason, config);
break;
case ZPOOL_STATUS_VERSION_OLDER:
(void) printf(gettext("status: The pool is formatted using a "
"legacy on-disk format. The pool can\n\tstill be used, "
"but some features are unavailable.\n"));
(void) printf(gettext("action: Upgrade the pool using 'zpool "
"upgrade'. Once this is done, the\n\tpool will no longer "
"be accessible on software that does not support\n\t"
"feature flags.\n"));
break;
case ZPOOL_STATUS_VERSION_NEWER:
(void) printf(gettext("status: The pool has been upgraded to a "
"newer, incompatible on-disk version.\n\tThe pool cannot "
"be accessed on this system.\n"));
(void) printf(gettext("action: Access the pool from a system "
"running more recent software, or\n\trestore the pool from "
"backup.\n"));
break;
case ZPOOL_STATUS_FEAT_DISABLED:
(void) printf(gettext("status: Some supported features are not "
"enabled on the pool. The pool can\n\tstill be used, but "
"some features are unavailable.\n"));
(void) printf(gettext("action: Enable all features using "
"'zpool upgrade'. Once this is done,\n\tthe pool may no "
"longer be accessible by software that does not support\n\t"
"the features. See zpool-features(5) for details.\n"));
break;
case ZPOOL_STATUS_UNSUP_FEAT_READ:
(void) printf(gettext("status: The pool cannot be accessed on "
"this system because it uses the\n\tfollowing feature(s) "
"not supported on this system:\n"));
zpool_print_unsup_feat(config);
(void) printf("\n");
(void) printf(gettext("action: Access the pool from a system "
"that supports the required feature(s),\n\tor restore the "
"pool from backup.\n"));
break;
case ZPOOL_STATUS_UNSUP_FEAT_WRITE:
(void) printf(gettext("status: The pool can only be accessed "
"in read-only mode on this system. It\n\tcannot be "
"accessed in read-write mode because it uses the "
"following\n\tfeature(s) not supported on this system:\n"));
zpool_print_unsup_feat(config);
(void) printf("\n");
(void) printf(gettext("action: The pool cannot be accessed in "
"read-write mode. Import the pool with\n"
"\t\"-o readonly=on\", access the pool from a system that "
"supports the\n\trequired feature(s), or restore the "
"pool from backup.\n"));
break;
case ZPOOL_STATUS_FAULTED_DEV_R:
(void) printf(gettext("status: One or more devices are "
"faulted in response to persistent errors.\n\tSufficient "
"replicas exist for the pool to continue functioning "
"in a\n\tdegraded state.\n"));
(void) printf(gettext("action: Replace the faulted device, "
"or use 'zpool clear' to mark the device\n\trepaired.\n"));
break;
case ZPOOL_STATUS_FAULTED_DEV_NR:
(void) printf(gettext("status: One or more devices are "
"faulted in response to persistent errors. There are "
"insufficient replicas for the pool to\n\tcontinue "
"functioning.\n"));
(void) printf(gettext("action: Destroy and re-create the pool "
"from a backup source. Manually marking the device\n"
"\trepaired using 'zpool clear' may allow some data "
"to be recovered.\n"));
break;
case ZPOOL_STATUS_IO_FAILURE_MMP:
(void) printf(gettext("status: The pool is suspended because "
"multihost writes failed or were delayed;\n\tanother "
"system could import the pool undetected.\n"));
(void) printf(gettext("action: Make sure the pool's devices "
"are connected, then reboot your system and\n\timport the "
"pool.\n"));
break;
case ZPOOL_STATUS_IO_FAILURE_WAIT:
case ZPOOL_STATUS_IO_FAILURE_CONTINUE:
(void) printf(gettext("status: One or more devices are "
"faulted in response to IO failures.\n"));
(void) printf(gettext("action: Make sure the affected devices "
"are connected, then run 'zpool clear'.\n"));
break;
case ZPOOL_STATUS_BAD_LOG:
(void) printf(gettext("status: An intent log record "
"could not be read.\n"
"\tWaiting for administrator intervention to fix the "
"faulted pool.\n"));
(void) printf(gettext("action: Either restore the affected "
"device(s) and run 'zpool online',\n"
"\tor ignore the intent log records by running "
"'zpool clear'.\n"));
break;
case ZPOOL_STATUS_HOSTID_MISMATCH:
(void) printf(gettext("status: Mismatch between pool hostid "
"and system hostid on imported pool.\n\tThis pool was "
"previously imported into a system with a different "
"hostid,\n\tand then was verbatim imported into this "
"system.\n"));
(void) printf(gettext("action: Export this pool on all systems "
"on which it is imported.\n"
"\tThen import it to correct the mismatch.\n"));
break;
case ZPOOL_STATUS_ERRATA:
(void) printf(gettext("status: Errata #%d detected.\n"),
errata);
switch (errata) {
case ZPOOL_ERRATA_NONE:
break;
case ZPOOL_ERRATA_ZOL_2094_SCRUB:
(void) printf(gettext("action: To correct the issue "
"run 'zpool scrub'.\n"));
break;
case ZPOOL_ERRATA_ZOL_6845_ENCRYPTION:
(void) printf(gettext("\tExisting encrypted datasets "
"contain an on-disk incompatibility\n\twhich "
"needs to be corrected.\n"));
(void) printf(gettext("action: To correct the issue "
"backup existing encrypted datasets to new\n\t"
"encrypted datasets and destroy the old ones. "
"'zfs mount -o ro' can\n\tbe used to temporarily "
"mount existing encrypted datasets readonly.\n"));
break;
default:
/*
* All errata which allow the pool to be imported
* must contain an action message.
*/
assert(0);
}
break;
default:
/*
* The remaining errors can't actually be generated, yet.
*/
assert(reason == ZPOOL_STATUS_OK);
}
if (msgid != NULL)
(void) printf(gettext(" see: http://zfsonlinux.org/msg/%s\n"),
msgid);
if (config != NULL) {
uint64_t nerr;
nvlist_t **spares, **l2cache;
uint_t nspares, nl2cache;
pool_scan_stat_t *ps = NULL;
(void) nvlist_lookup_uint64_array(nvroot,
ZPOOL_CONFIG_SCAN_STATS, (uint64_t **)&ps, &c);
print_scan_status(ps);
cbp->cb_namewidth = max_width(zhp, nvroot, 0, 0,
cbp->cb_name_flags | VDEV_NAME_TYPE_ID);
if (cbp->cb_namewidth < 10)
cbp->cb_namewidth = 10;
(void) printf(gettext("config:\n\n"));
(void) printf(gettext("\t%-*s %-8s %5s %5s %5s"),
cbp->cb_namewidth, "NAME", "STATE", "READ", "WRITE",
"CKSUM");
if (cbp->vcdl != NULL)
print_cmd_columns(cbp->vcdl, 0);
printf("\n");
print_status_config(zhp, cbp, zpool_get_name(zhp), nvroot, 0,
B_FALSE);
if (num_logs(nvroot) > 0)
print_logs(zhp, cbp, nvroot);
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
&l2cache, &nl2cache) == 0)
print_l2cache(zhp, cbp, l2cache, nl2cache);
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
&spares, &nspares) == 0)
print_spares(zhp, cbp, spares, nspares);
if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_ERRCOUNT,
&nerr) == 0) {
nvlist_t *nverrlist = NULL;
/*
* If the approximate error count is small, get a
* precise count by fetching the entire log and
* uniquifying the results.
*/
if (nerr > 0 && nerr < 100 && !cbp->cb_verbose &&
zpool_get_errlog(zhp, &nverrlist) == 0) {
nvpair_t *elem;
elem = NULL;
nerr = 0;
while ((elem = nvlist_next_nvpair(nverrlist,
elem)) != NULL) {
nerr++;
}
}
nvlist_free(nverrlist);
(void) printf("\n");
if (nerr == 0)
(void) printf(gettext("errors: No known data "
"errors\n"));
else if (!cbp->cb_verbose)
(void) printf(gettext("errors: %llu data "
"errors, use '-v' for a list\n"),
(u_longlong_t)nerr);
else
print_error_log(zhp);
}
if (cbp->cb_dedup_stats)
print_dedup_stats(config);
} else {
(void) printf(gettext("config: The configuration cannot be "
"determined.\n"));
}
return (0);
}
/*
* zpool status [-c [script1,script2,...]] [-gLPvx] [-T d|u] [pool] ...
* [interval [count]]
*
* -c CMD For each vdev, run command CMD
* -g Display guid for individual vdev name.
* -L Follow links when resolving vdev path name.
* -P Display full path for vdev name.
* -v Display complete error logs
* -x Display only pools with potential problems
* -D Display dedup status (undocumented)
* -T Display a timestamp in date(1) or Unix format
*
* Describes the health status of all pools or some subset.
*/
int
zpool_do_status(int argc, char **argv)
{
int c;
int ret;
float interval = 0;
unsigned long count = 0;
status_cbdata_t cb = { 0 };
char *cmd = NULL;
/* check options */
while ((c = getopt(argc, argv, "c:gLPvxDT:")) != -1) {
switch (c) {
case 'c':
if (cmd != NULL) {
fprintf(stderr,
gettext("Can't set -c flag twice\n"));
exit(1);
}
if (getenv("ZPOOL_SCRIPTS_ENABLED") != NULL &&
!libzfs_envvar_is_set("ZPOOL_SCRIPTS_ENABLED")) {
fprintf(stderr, gettext(
"Can't run -c, disabled by "
"ZPOOL_SCRIPTS_ENABLED.\n"));
exit(1);
}
if ((getuid() <= 0 || geteuid() <= 0) &&
!libzfs_envvar_is_set("ZPOOL_SCRIPTS_AS_ROOT")) {
fprintf(stderr, gettext(
"Can't run -c with root privileges "
"unless ZPOOL_SCRIPTS_AS_ROOT is set.\n"));
exit(1);
}
cmd = optarg;
break;
case 'g':
cb.cb_name_flags |= VDEV_NAME_GUID;
break;
case 'L':
cb.cb_name_flags |= VDEV_NAME_FOLLOW_LINKS;
break;
case 'P':
cb.cb_name_flags |= VDEV_NAME_PATH;
break;
case 'v':
cb.cb_verbose = B_TRUE;
break;
case 'x':
cb.cb_explain = B_TRUE;
break;
case 'D':
cb.cb_dedup_stats = B_TRUE;
break;
case 'T':
get_timestamp_arg(*optarg);
break;
case '?':
if (optopt == 'c') {
print_zpool_script_list("status");
exit(0);
} else {
fprintf(stderr,
gettext("invalid option '%c'\n"), optopt);
}
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
get_interval_count(&argc, argv, &interval, &count);
if (argc == 0)
cb.cb_allpools = B_TRUE;
cb.cb_first = B_TRUE;
cb.cb_print_status = B_TRUE;
for (;;) {
if (timestamp_fmt != NODATE)
print_timestamp(timestamp_fmt);
if (cmd != NULL)
cb.vcdl = all_pools_for_each_vdev_run(argc, argv, cmd,
NULL, NULL, 0, 0);
ret = for_each_pool(argc, argv, B_TRUE, NULL,
status_callback, &cb);
if (cb.vcdl != NULL)
free_vdev_cmd_data_list(cb.vcdl);
if (argc == 0 && cb.cb_count == 0)
(void) fprintf(stderr, gettext("no pools available\n"));
else if (cb.cb_explain && cb.cb_first && cb.cb_allpools)
(void) printf(gettext("all pools are healthy\n"));
if (ret != 0)
return (ret);
if (interval == 0)
break;
if (count != 0 && --count == 0)
break;
(void) fsleep(interval);
}
return (0);
}
typedef struct upgrade_cbdata {
int cb_first;
int cb_argc;
uint64_t cb_version;
char **cb_argv;
} upgrade_cbdata_t;
static int
check_unsupp_fs(zfs_handle_t *zhp, void *unsupp_fs)
{
int zfs_version = (int)zfs_prop_get_int(zhp, ZFS_PROP_VERSION);
int *count = (int *)unsupp_fs;
if (zfs_version > ZPL_VERSION) {
(void) printf(gettext("%s (v%d) is not supported by this "
"implementation of ZFS.\n"),
zfs_get_name(zhp), zfs_version);
(*count)++;
}
zfs_iter_filesystems(zhp, check_unsupp_fs, unsupp_fs);
zfs_close(zhp);
return (0);
}
static int
upgrade_version(zpool_handle_t *zhp, uint64_t version)
{
int ret;
nvlist_t *config;
uint64_t oldversion;
int unsupp_fs = 0;
config = zpool_get_config(zhp, NULL);
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
&oldversion) == 0);
assert(SPA_VERSION_IS_SUPPORTED(oldversion));
assert(oldversion < version);
ret = zfs_iter_root(zpool_get_handle(zhp), check_unsupp_fs, &unsupp_fs);
if (ret != 0)
return (ret);
if (unsupp_fs) {
(void) fprintf(stderr, gettext("Upgrade not performed due "
"to %d unsupported filesystems (max v%d).\n"),
unsupp_fs, (int)ZPL_VERSION);
return (1);
}
ret = zpool_upgrade(zhp, version);
if (ret != 0)
return (ret);
if (version >= SPA_VERSION_FEATURES) {
(void) printf(gettext("Successfully upgraded "
"'%s' from version %llu to feature flags.\n"),
zpool_get_name(zhp), (u_longlong_t)oldversion);
} else {
(void) printf(gettext("Successfully upgraded "
"'%s' from version %llu to version %llu.\n"),
zpool_get_name(zhp), (u_longlong_t)oldversion,
(u_longlong_t)version);
}
return (0);
}
static int
upgrade_enable_all(zpool_handle_t *zhp, int *countp)
{
int i, ret, count;
boolean_t firstff = B_TRUE;
nvlist_t *enabled = zpool_get_features(zhp);
count = 0;
for (i = 0; i < SPA_FEATURES; i++) {
const char *fname = spa_feature_table[i].fi_uname;
const char *fguid = spa_feature_table[i].fi_guid;
if (!nvlist_exists(enabled, fguid)) {
char *propname;
verify(-1 != asprintf(&propname, "feature@%s", fname));
ret = zpool_set_prop(zhp, propname,
ZFS_FEATURE_ENABLED);
if (ret != 0) {
free(propname);
return (ret);
}
count++;
if (firstff) {
(void) printf(gettext("Enabled the "
"following features on '%s':\n"),
zpool_get_name(zhp));
firstff = B_FALSE;
}
(void) printf(gettext(" %s\n"), fname);
free(propname);
}
}
if (countp != NULL)
*countp = count;
return (0);
}
static int
upgrade_cb(zpool_handle_t *zhp, void *arg)
{
upgrade_cbdata_t *cbp = arg;
nvlist_t *config;
uint64_t version;
boolean_t printnl = B_FALSE;
int ret;
config = zpool_get_config(zhp, NULL);
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
&version) == 0);
assert(SPA_VERSION_IS_SUPPORTED(version));
if (version < cbp->cb_version) {
cbp->cb_first = B_FALSE;
ret = upgrade_version(zhp, cbp->cb_version);
if (ret != 0)
return (ret);
printnl = B_TRUE;
/*
* If they did "zpool upgrade -a", then we could
* be doing ioctls to different pools. We need
* to log this history once to each pool, and bypass
* the normal history logging that happens in main().
*/
(void) zpool_log_history(g_zfs, history_str);
log_history = B_FALSE;
}
if (cbp->cb_version >= SPA_VERSION_FEATURES) {
int count;
ret = upgrade_enable_all(zhp, &count);
if (ret != 0)
return (ret);
if (count > 0) {
cbp->cb_first = B_FALSE;
printnl = B_TRUE;
}
}
if (printnl) {
(void) printf(gettext("\n"));
}
return (0);
}
static int
upgrade_list_older_cb(zpool_handle_t *zhp, void *arg)
{
upgrade_cbdata_t *cbp = arg;
nvlist_t *config;
uint64_t version;
config = zpool_get_config(zhp, NULL);
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
&version) == 0);
assert(SPA_VERSION_IS_SUPPORTED(version));
if (version < SPA_VERSION_FEATURES) {
if (cbp->cb_first) {
(void) printf(gettext("The following pools are "
"formatted with legacy version numbers and can\n"
"be upgraded to use feature flags. After "
"being upgraded, these pools\nwill no "
"longer be accessible by software that does not "
"support feature\nflags.\n\n"));
(void) printf(gettext("VER POOL\n"));
(void) printf(gettext("--- ------------\n"));
cbp->cb_first = B_FALSE;
}
(void) printf("%2llu %s\n", (u_longlong_t)version,
zpool_get_name(zhp));
}
return (0);
}
static int
upgrade_list_disabled_cb(zpool_handle_t *zhp, void *arg)
{
upgrade_cbdata_t *cbp = arg;
nvlist_t *config;
uint64_t version;
config = zpool_get_config(zhp, NULL);
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
&version) == 0);
if (version >= SPA_VERSION_FEATURES) {
int i;
boolean_t poolfirst = B_TRUE;
nvlist_t *enabled = zpool_get_features(zhp);
for (i = 0; i < SPA_FEATURES; i++) {
const char *fguid = spa_feature_table[i].fi_guid;
const char *fname = spa_feature_table[i].fi_uname;
if (!nvlist_exists(enabled, fguid)) {
if (cbp->cb_first) {
(void) printf(gettext("\nSome "
"supported features are not "
"enabled on the following pools. "
"Once a\nfeature is enabled the "
"pool may become incompatible with "
"software\nthat does not support "
"the feature. See "
"zpool-features(5) for "
"details.\n\n"));
(void) printf(gettext("POOL "
"FEATURE\n"));
(void) printf(gettext("------"
"---------\n"));
cbp->cb_first = B_FALSE;
}
if (poolfirst) {
(void) printf(gettext("%s\n"),
zpool_get_name(zhp));
poolfirst = B_FALSE;
}
(void) printf(gettext(" %s\n"), fname);
}
/*
* If they did "zpool upgrade -a", then we could
* be doing ioctls to different pools. We need
* to log this history once to each pool, and bypass
* the normal history logging that happens in main().
*/
(void) zpool_log_history(g_zfs, history_str);
log_history = B_FALSE;
}
}
return (0);
}
/* ARGSUSED */
static int
upgrade_one(zpool_handle_t *zhp, void *data)
{
boolean_t printnl = B_FALSE;
upgrade_cbdata_t *cbp = data;
uint64_t cur_version;
int ret;
if (strcmp("log", zpool_get_name(zhp)) == 0) {
(void) fprintf(stderr, gettext("'log' is now a reserved word\n"
"Pool 'log' must be renamed using export and import"
" to upgrade.\n"));
return (1);
}
cur_version = zpool_get_prop_int(zhp, ZPOOL_PROP_VERSION, NULL);
if (cur_version > cbp->cb_version) {
(void) printf(gettext("Pool '%s' is already formatted "
"using more current version '%llu'.\n\n"),
zpool_get_name(zhp), (u_longlong_t)cur_version);
return (0);
}
if (cbp->cb_version != SPA_VERSION && cur_version == cbp->cb_version) {
(void) printf(gettext("Pool '%s' is already formatted "
"using version %llu.\n\n"), zpool_get_name(zhp),
(u_longlong_t)cbp->cb_version);
return (0);
}
if (cur_version != cbp->cb_version) {
printnl = B_TRUE;
ret = upgrade_version(zhp, cbp->cb_version);
if (ret != 0)
return (ret);
}
if (cbp->cb_version >= SPA_VERSION_FEATURES) {
int count = 0;
ret = upgrade_enable_all(zhp, &count);
if (ret != 0)
return (ret);
if (count != 0) {
printnl = B_TRUE;
} else if (cur_version == SPA_VERSION) {
(void) printf(gettext("Pool '%s' already has all "
"supported features enabled.\n"),
zpool_get_name(zhp));
}
}
if (printnl) {
(void) printf(gettext("\n"));
}
return (0);
}
/*
* zpool upgrade
* zpool upgrade -v
* zpool upgrade [-V version] <-a | pool ...>
*
* With no arguments, display downrev'd ZFS pool available for upgrade.
* Individual pools can be upgraded by specifying the pool, and '-a' will
* upgrade all pools.
*/
int
zpool_do_upgrade(int argc, char **argv)
{
int c;
upgrade_cbdata_t cb = { 0 };
int ret = 0;
boolean_t showversions = B_FALSE;
boolean_t upgradeall = B_FALSE;
char *end;
/* check options */
while ((c = getopt(argc, argv, ":avV:")) != -1) {
switch (c) {
case 'a':
upgradeall = B_TRUE;
break;
case 'v':
showversions = B_TRUE;
break;
case 'V':
cb.cb_version = strtoll(optarg, &end, 10);
if (*end != '\0' ||
!SPA_VERSION_IS_SUPPORTED(cb.cb_version)) {
(void) fprintf(stderr,
gettext("invalid version '%s'\n"), optarg);
usage(B_FALSE);
}
break;
case ':':
(void) fprintf(stderr, gettext("missing argument for "
"'%c' option\n"), optopt);
usage(B_FALSE);
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
cb.cb_argc = argc;
cb.cb_argv = argv;
argc -= optind;
argv += optind;
if (cb.cb_version == 0) {
cb.cb_version = SPA_VERSION;
} else if (!upgradeall && argc == 0) {
(void) fprintf(stderr, gettext("-V option is "
"incompatible with other arguments\n"));
usage(B_FALSE);
}
if (showversions) {
if (upgradeall || argc != 0) {
(void) fprintf(stderr, gettext("-v option is "
"incompatible with other arguments\n"));
usage(B_FALSE);
}
} else if (upgradeall) {
if (argc != 0) {
(void) fprintf(stderr, gettext("-a option should not "
"be used along with a pool name\n"));
usage(B_FALSE);
}
}
(void) printf(gettext("This system supports ZFS pool feature "
"flags.\n\n"));
if (showversions) {
int i;
(void) printf(gettext("The following features are "
"supported:\n\n"));
(void) printf(gettext("FEAT DESCRIPTION\n"));
(void) printf("----------------------------------------------"
"---------------\n");
for (i = 0; i < SPA_FEATURES; i++) {
zfeature_info_t *fi = &spa_feature_table[i];
const char *ro =
(fi->fi_flags & ZFEATURE_FLAG_READONLY_COMPAT) ?
" (read-only compatible)" : "";
(void) printf("%-37s%s\n", fi->fi_uname, ro);
(void) printf(" %s\n", fi->fi_desc);
}
(void) printf("\n");
(void) printf(gettext("The following legacy versions are also "
"supported:\n\n"));
(void) printf(gettext("VER DESCRIPTION\n"));
(void) printf("--- -----------------------------------------"
"---------------\n");
(void) printf(gettext(" 1 Initial ZFS version\n"));
(void) printf(gettext(" 2 Ditto blocks "
"(replicated metadata)\n"));
(void) printf(gettext(" 3 Hot spares and double parity "
"RAID-Z\n"));
(void) printf(gettext(" 4 zpool history\n"));
(void) printf(gettext(" 5 Compression using the gzip "
"algorithm\n"));
(void) printf(gettext(" 6 bootfs pool property\n"));
(void) printf(gettext(" 7 Separate intent log devices\n"));
(void) printf(gettext(" 8 Delegated administration\n"));
(void) printf(gettext(" 9 refquota and refreservation "
"properties\n"));
(void) printf(gettext(" 10 Cache devices\n"));
(void) printf(gettext(" 11 Improved scrub performance\n"));
(void) printf(gettext(" 12 Snapshot properties\n"));
(void) printf(gettext(" 13 snapused property\n"));
(void) printf(gettext(" 14 passthrough-x aclinherit\n"));
(void) printf(gettext(" 15 user/group space accounting\n"));
(void) printf(gettext(" 16 stmf property support\n"));
(void) printf(gettext(" 17 Triple-parity RAID-Z\n"));
(void) printf(gettext(" 18 Snapshot user holds\n"));
(void) printf(gettext(" 19 Log device removal\n"));
(void) printf(gettext(" 20 Compression using zle "
"(zero-length encoding)\n"));
(void) printf(gettext(" 21 Deduplication\n"));
(void) printf(gettext(" 22 Received properties\n"));
(void) printf(gettext(" 23 Slim ZIL\n"));
(void) printf(gettext(" 24 System attributes\n"));
(void) printf(gettext(" 25 Improved scrub stats\n"));
(void) printf(gettext(" 26 Improved snapshot deletion "
"performance\n"));
(void) printf(gettext(" 27 Improved snapshot creation "
"performance\n"));
(void) printf(gettext(" 28 Multiple vdev replacements\n"));
(void) printf(gettext("\nFor more information on a particular "
"version, including supported releases,\n"));
(void) printf(gettext("see the ZFS Administration Guide.\n\n"));
} else if (argc == 0 && upgradeall) {
cb.cb_first = B_TRUE;
ret = zpool_iter(g_zfs, upgrade_cb, &cb);
if (ret == 0 && cb.cb_first) {
if (cb.cb_version == SPA_VERSION) {
(void) printf(gettext("All pools are already "
"formatted using feature flags.\n\n"));
(void) printf(gettext("Every feature flags "
"pool already has all supported features "
"enabled.\n"));
} else {
(void) printf(gettext("All pools are already "
"formatted with version %llu or higher.\n"),
(u_longlong_t)cb.cb_version);
}
}
} else if (argc == 0) {
cb.cb_first = B_TRUE;
ret = zpool_iter(g_zfs, upgrade_list_older_cb, &cb);
assert(ret == 0);
if (cb.cb_first) {
(void) printf(gettext("All pools are formatted "
"using feature flags.\n\n"));
} else {
(void) printf(gettext("\nUse 'zpool upgrade -v' "
"for a list of available legacy versions.\n"));
}
cb.cb_first = B_TRUE;
ret = zpool_iter(g_zfs, upgrade_list_disabled_cb, &cb);
assert(ret == 0);
if (cb.cb_first) {
(void) printf(gettext("Every feature flags pool has "
"all supported features enabled.\n"));
} else {
(void) printf(gettext("\n"));
}
} else {
ret = for_each_pool(argc, argv, B_FALSE, NULL,
upgrade_one, &cb);
}
return (ret);
}
typedef struct hist_cbdata {
boolean_t first;
boolean_t longfmt;
boolean_t internal;
} hist_cbdata_t;
/*
* Print out the command history for a specific pool.
*/
static int
get_history_one(zpool_handle_t *zhp, void *data)
{
nvlist_t *nvhis;
nvlist_t **records;
uint_t numrecords;
int ret, i;
hist_cbdata_t *cb = (hist_cbdata_t *)data;
cb->first = B_FALSE;
(void) printf(gettext("History for '%s':\n"), zpool_get_name(zhp));
if ((ret = zpool_get_history(zhp, &nvhis)) != 0)
return (ret);
verify(nvlist_lookup_nvlist_array(nvhis, ZPOOL_HIST_RECORD,
&records, &numrecords) == 0);
for (i = 0; i < numrecords; i++) {
nvlist_t *rec = records[i];
char tbuf[30] = "";
if (nvlist_exists(rec, ZPOOL_HIST_TIME)) {
time_t tsec;
struct tm t;
tsec = fnvlist_lookup_uint64(records[i],
ZPOOL_HIST_TIME);
(void) localtime_r(&tsec, &t);
(void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
}
if (nvlist_exists(rec, ZPOOL_HIST_CMD)) {
(void) printf("%s %s", tbuf,
fnvlist_lookup_string(rec, ZPOOL_HIST_CMD));
} else if (nvlist_exists(rec, ZPOOL_HIST_INT_EVENT)) {
int ievent =
fnvlist_lookup_uint64(rec, ZPOOL_HIST_INT_EVENT);
if (!cb->internal)
continue;
if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) {
(void) printf("%s unrecognized record:\n",
tbuf);
dump_nvlist(rec, 4);
continue;
}
(void) printf("%s [internal %s txg:%lld] %s", tbuf,
zfs_history_event_names[ievent],
(longlong_t)fnvlist_lookup_uint64(
rec, ZPOOL_HIST_TXG),
fnvlist_lookup_string(rec, ZPOOL_HIST_INT_STR));
} else if (nvlist_exists(rec, ZPOOL_HIST_INT_NAME)) {
if (!cb->internal)
continue;
(void) printf("%s [txg:%lld] %s", tbuf,
(longlong_t)fnvlist_lookup_uint64(
rec, ZPOOL_HIST_TXG),
fnvlist_lookup_string(rec, ZPOOL_HIST_INT_NAME));
if (nvlist_exists(rec, ZPOOL_HIST_DSNAME)) {
(void) printf(" %s (%llu)",
fnvlist_lookup_string(rec,
ZPOOL_HIST_DSNAME),
(u_longlong_t)fnvlist_lookup_uint64(rec,
ZPOOL_HIST_DSID));
}
(void) printf(" %s", fnvlist_lookup_string(rec,
ZPOOL_HIST_INT_STR));
} else if (nvlist_exists(rec, ZPOOL_HIST_IOCTL)) {
if (!cb->internal)
continue;
(void) printf("%s ioctl %s\n", tbuf,
fnvlist_lookup_string(rec, ZPOOL_HIST_IOCTL));
if (nvlist_exists(rec, ZPOOL_HIST_INPUT_NVL)) {
(void) printf(" input:\n");
dump_nvlist(fnvlist_lookup_nvlist(rec,
ZPOOL_HIST_INPUT_NVL), 8);
}
if (nvlist_exists(rec, ZPOOL_HIST_OUTPUT_NVL)) {
(void) printf(" output:\n");
dump_nvlist(fnvlist_lookup_nvlist(rec,
ZPOOL_HIST_OUTPUT_NVL), 8);
}
if (nvlist_exists(rec, ZPOOL_HIST_ERRNO)) {
(void) printf(" errno: %lld\n",
(longlong_t)fnvlist_lookup_int64(rec,
ZPOOL_HIST_ERRNO));
}
} else {
if (!cb->internal)
continue;
(void) printf("%s unrecognized record:\n", tbuf);
dump_nvlist(rec, 4);
}
if (!cb->longfmt) {
(void) printf("\n");
continue;
}
(void) printf(" [");
if (nvlist_exists(rec, ZPOOL_HIST_WHO)) {
uid_t who = fnvlist_lookup_uint64(rec, ZPOOL_HIST_WHO);
struct passwd *pwd = getpwuid(who);
(void) printf("user %d ", (int)who);
if (pwd != NULL)
(void) printf("(%s) ", pwd->pw_name);
}
if (nvlist_exists(rec, ZPOOL_HIST_HOST)) {
(void) printf("on %s",
fnvlist_lookup_string(rec, ZPOOL_HIST_HOST));
}
if (nvlist_exists(rec, ZPOOL_HIST_ZONE)) {
(void) printf(":%s",
fnvlist_lookup_string(rec, ZPOOL_HIST_ZONE));
}
(void) printf("]");
(void) printf("\n");
}
(void) printf("\n");
nvlist_free(nvhis);
return (ret);
}
/*
* zpool history <pool>
*
* Displays the history of commands that modified pools.
*/
int
zpool_do_history(int argc, char **argv)
{
hist_cbdata_t cbdata = { 0 };
int ret;
int c;
cbdata.first = B_TRUE;
/* check options */
while ((c = getopt(argc, argv, "li")) != -1) {
switch (c) {
case 'l':
cbdata.longfmt = B_TRUE;
break;
case 'i':
cbdata.internal = B_TRUE;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
ret = for_each_pool(argc, argv, B_FALSE, NULL, get_history_one,
&cbdata);
if (argc == 0 && cbdata.first == B_TRUE) {
(void) fprintf(stderr, gettext("no pools available\n"));
return (0);
}
return (ret);
}
typedef struct ev_opts {
int verbose;
int scripted;
int follow;
int clear;
char poolname[ZFS_MAX_DATASET_NAME_LEN];
} ev_opts_t;
static void
zpool_do_events_short(nvlist_t *nvl, ev_opts_t *opts)
{
char ctime_str[26], str[32], *ptr;
int64_t *tv;
uint_t n;
verify(nvlist_lookup_int64_array(nvl, FM_EREPORT_TIME, &tv, &n) == 0);
memset(str, ' ', 32);
(void) ctime_r((const time_t *)&tv[0], ctime_str);
(void) strncpy(str, ctime_str+4, 6); /* 'Jun 30' */
(void) strncpy(str+7, ctime_str+20, 4); /* '1993' */
(void) strncpy(str+12, ctime_str+11, 8); /* '21:49:08' */
(void) sprintf(str+20, ".%09lld", (longlong_t)tv[1]); /* '.123456789' */
if (opts->scripted)
(void) printf(gettext("%s\t"), str);
else
(void) printf(gettext("%s "), str);
verify(nvlist_lookup_string(nvl, FM_CLASS, &ptr) == 0);
(void) printf(gettext("%s\n"), ptr);
}
static void
zpool_do_events_nvprint(nvlist_t *nvl, int depth)
{
nvpair_t *nvp;
for (nvp = nvlist_next_nvpair(nvl, NULL);
nvp != NULL; nvp = nvlist_next_nvpair(nvl, nvp)) {
data_type_t type = nvpair_type(nvp);
const char *name = nvpair_name(nvp);
boolean_t b;
uint8_t i8;
uint16_t i16;
uint32_t i32;
uint64_t i64;
char *str;
nvlist_t *cnv;
printf(gettext("%*s%s = "), depth, "", name);
switch (type) {
case DATA_TYPE_BOOLEAN:
printf(gettext("%s"), "1");
break;
case DATA_TYPE_BOOLEAN_VALUE:
(void) nvpair_value_boolean_value(nvp, &b);
printf(gettext("%s"), b ? "1" : "0");
break;
case DATA_TYPE_BYTE:
(void) nvpair_value_byte(nvp, &i8);
printf(gettext("0x%x"), i8);
break;
case DATA_TYPE_INT8:
(void) nvpair_value_int8(nvp, (void *)&i8);
printf(gettext("0x%x"), i8);
break;
case DATA_TYPE_UINT8:
(void) nvpair_value_uint8(nvp, &i8);
printf(gettext("0x%x"), i8);
break;
case DATA_TYPE_INT16:
(void) nvpair_value_int16(nvp, (void *)&i16);
printf(gettext("0x%x"), i16);
break;
case DATA_TYPE_UINT16:
(void) nvpair_value_uint16(nvp, &i16);
printf(gettext("0x%x"), i16);
break;
case DATA_TYPE_INT32:
(void) nvpair_value_int32(nvp, (void *)&i32);
printf(gettext("0x%x"), i32);
break;
case DATA_TYPE_UINT32:
(void) nvpair_value_uint32(nvp, &i32);
printf(gettext("0x%x"), i32);
break;
case DATA_TYPE_INT64:
(void) nvpair_value_int64(nvp, (void *)&i64);
printf(gettext("0x%llx"), (u_longlong_t)i64);
break;
case DATA_TYPE_UINT64:
(void) nvpair_value_uint64(nvp, &i64);
/*
* translate vdev state values to readable
* strings to aide zpool events consumers
*/
if (strcmp(name,
FM_EREPORT_PAYLOAD_ZFS_VDEV_STATE) == 0 ||
strcmp(name,
FM_EREPORT_PAYLOAD_ZFS_VDEV_LASTSTATE) == 0) {
printf(gettext("\"%s\" (0x%llx)"),
zpool_state_to_name(i64, VDEV_AUX_NONE),
(u_longlong_t)i64);
} else {
printf(gettext("0x%llx"), (u_longlong_t)i64);
}
break;
case DATA_TYPE_HRTIME:
(void) nvpair_value_hrtime(nvp, (void *)&i64);
printf(gettext("0x%llx"), (u_longlong_t)i64);
break;
case DATA_TYPE_STRING:
(void) nvpair_value_string(nvp, &str);
printf(gettext("\"%s\""), str ? str : "<NULL>");
break;
case DATA_TYPE_NVLIST:
printf(gettext("(embedded nvlist)\n"));
(void) nvpair_value_nvlist(nvp, &cnv);
zpool_do_events_nvprint(cnv, depth + 8);
printf(gettext("%*s(end %s)"), depth, "", name);
break;
case DATA_TYPE_NVLIST_ARRAY: {
nvlist_t **val;
uint_t i, nelem;
(void) nvpair_value_nvlist_array(nvp, &val, &nelem);
printf(gettext("(%d embedded nvlists)\n"), nelem);
for (i = 0; i < nelem; i++) {
printf(gettext("%*s%s[%d] = %s\n"),
depth, "", name, i, "(embedded nvlist)");
zpool_do_events_nvprint(val[i], depth + 8);
printf(gettext("%*s(end %s[%i])\n"),
depth, "", name, i);
}
printf(gettext("%*s(end %s)\n"), depth, "", name);
}
break;
case DATA_TYPE_INT8_ARRAY: {
int8_t *val;
uint_t i, nelem;
(void) nvpair_value_int8_array(nvp, &val, &nelem);
for (i = 0; i < nelem; i++)
printf(gettext("0x%x "), val[i]);
break;
}
case DATA_TYPE_UINT8_ARRAY: {
uint8_t *val;
uint_t i, nelem;
(void) nvpair_value_uint8_array(nvp, &val, &nelem);
for (i = 0; i < nelem; i++)
printf(gettext("0x%x "), val[i]);
break;
}
case DATA_TYPE_INT16_ARRAY: {
int16_t *val;
uint_t i, nelem;
(void) nvpair_value_int16_array(nvp, &val, &nelem);
for (i = 0; i < nelem; i++)
printf(gettext("0x%x "), val[i]);
break;
}
case DATA_TYPE_UINT16_ARRAY: {
uint16_t *val;
uint_t i, nelem;
(void) nvpair_value_uint16_array(nvp, &val, &nelem);
for (i = 0; i < nelem; i++)
printf(gettext("0x%x "), val[i]);
break;
}
case DATA_TYPE_INT32_ARRAY: {
int32_t *val;
uint_t i, nelem;
(void) nvpair_value_int32_array(nvp, &val, &nelem);
for (i = 0; i < nelem; i++)
printf(gettext("0x%x "), val[i]);
break;
}
case DATA_TYPE_UINT32_ARRAY: {
uint32_t *val;
uint_t i, nelem;
(void) nvpair_value_uint32_array(nvp, &val, &nelem);
for (i = 0; i < nelem; i++)
printf(gettext("0x%x "), val[i]);
break;
}
case DATA_TYPE_INT64_ARRAY: {
int64_t *val;
uint_t i, nelem;
(void) nvpair_value_int64_array(nvp, &val, &nelem);
for (i = 0; i < nelem; i++)
printf(gettext("0x%llx "),
(u_longlong_t)val[i]);
break;
}
case DATA_TYPE_UINT64_ARRAY: {
uint64_t *val;
uint_t i, nelem;
(void) nvpair_value_uint64_array(nvp, &val, &nelem);
for (i = 0; i < nelem; i++)
printf(gettext("0x%llx "),
(u_longlong_t)val[i]);
break;
}
case DATA_TYPE_STRING_ARRAY: {
char **str;
uint_t i, nelem;
(void) nvpair_value_string_array(nvp, &str, &nelem);
for (i = 0; i < nelem; i++)
printf(gettext("\"%s\" "),
str[i] ? str[i] : "<NULL>");
break;
}
case DATA_TYPE_BOOLEAN_ARRAY:
case DATA_TYPE_BYTE_ARRAY:
case DATA_TYPE_DOUBLE:
case DATA_TYPE_UNKNOWN:
printf(gettext("<unknown>"));
break;
}
printf(gettext("\n"));
}
}
static int
zpool_do_events_next(ev_opts_t *opts)
{
nvlist_t *nvl;
int zevent_fd, ret, dropped;
char *pool;
zevent_fd = open(ZFS_DEV, O_RDWR);
VERIFY(zevent_fd >= 0);
if (!opts->scripted)
(void) printf(gettext("%-30s %s\n"), "TIME", "CLASS");
while (1) {
ret = zpool_events_next(g_zfs, &nvl, &dropped,
(opts->follow ? ZEVENT_NONE : ZEVENT_NONBLOCK), zevent_fd);
if (ret || nvl == NULL)
break;
if (dropped > 0)
(void) printf(gettext("dropped %d events\n"), dropped);
if (strlen(opts->poolname) > 0 &&
nvlist_lookup_string(nvl, FM_FMRI_ZFS_POOL, &pool) == 0 &&
strcmp(opts->poolname, pool) != 0)
continue;
zpool_do_events_short(nvl, opts);
if (opts->verbose) {
zpool_do_events_nvprint(nvl, 8);
printf(gettext("\n"));
}
(void) fflush(stdout);
nvlist_free(nvl);
}
VERIFY(0 == close(zevent_fd));
return (ret);
}
static int
zpool_do_events_clear(ev_opts_t *opts)
{
int count, ret;
ret = zpool_events_clear(g_zfs, &count);
if (!ret)
(void) printf(gettext("cleared %d events\n"), count);
return (ret);
}
/*
* zpool events [-vHf [pool] | -c]
*
* Displays events logs by ZFS.
*/
int
zpool_do_events(int argc, char **argv)
{
ev_opts_t opts = { 0 };
int ret;
int c;
/* check options */
while ((c = getopt(argc, argv, "vHfc")) != -1) {
switch (c) {
case 'v':
opts.verbose = 1;
break;
case 'H':
opts.scripted = 1;
break;
case 'f':
opts.follow = 1;
break;
case 'c':
opts.clear = 1;
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
if (argc > 1) {
(void) fprintf(stderr, gettext("too many arguments\n"));
usage(B_FALSE);
} else if (argc == 1) {
(void) strlcpy(opts.poolname, argv[0], sizeof (opts.poolname));
if (!zfs_name_valid(opts.poolname, ZFS_TYPE_POOL)) {
(void) fprintf(stderr,
gettext("invalid pool name '%s'\n"), opts.poolname);
usage(B_FALSE);
}
}
if ((argc == 1 || opts.verbose || opts.scripted || opts.follow) &&
opts.clear) {
(void) fprintf(stderr,
gettext("invalid options combined with -c\n"));
usage(B_FALSE);
}
if (opts.clear)
ret = zpool_do_events_clear(&opts);
else
ret = zpool_do_events_next(&opts);
return (ret);
}
static int
get_callback(zpool_handle_t *zhp, void *data)
{
zprop_get_cbdata_t *cbp = (zprop_get_cbdata_t *)data;
char value[MAXNAMELEN];
zprop_source_t srctype;
zprop_list_t *pl;
for (pl = cbp->cb_proplist; pl != NULL; pl = pl->pl_next) {
/*
* Skip the special fake placeholder. This will also skip
* over the name property when 'all' is specified.
*/
if (pl->pl_prop == ZPOOL_PROP_NAME &&
pl == cbp->cb_proplist)
continue;
if (pl->pl_prop == ZPROP_INVAL &&
(zpool_prop_feature(pl->pl_user_prop) ||
zpool_prop_unsupported(pl->pl_user_prop))) {
srctype = ZPROP_SRC_LOCAL;
if (zpool_prop_get_feature(zhp, pl->pl_user_prop,
value, sizeof (value)) == 0) {
zprop_print_one_property(zpool_get_name(zhp),
cbp, pl->pl_user_prop, value, srctype,
NULL, NULL);
}
} else {
if (zpool_get_prop(zhp, pl->pl_prop, value,
sizeof (value), &srctype, cbp->cb_literal) != 0)
continue;
zprop_print_one_property(zpool_get_name(zhp), cbp,
zpool_prop_to_name(pl->pl_prop), value, srctype,
NULL, NULL);
}
}
return (0);
}
/*
* zpool get [-Hp] [-o "all" | field[,...]] <"all" | property[,...]> <pool> ...
*
* -H Scripted mode. Don't display headers, and separate properties
* by a single tab.
* -o List of columns to display. Defaults to
* "name,property,value,source".
* -p Display values in parsable (exact) format.
*
* Get properties of pools in the system. Output space statistics
* for each one as well as other attributes.
*/
int
zpool_do_get(int argc, char **argv)
{
zprop_get_cbdata_t cb = { 0 };
zprop_list_t fake_name = { 0 };
int ret;
int c, i;
char *value;
cb.cb_first = B_TRUE;
/*
* Set up default columns and sources.
*/
cb.cb_sources = ZPROP_SRC_ALL;
cb.cb_columns[0] = GET_COL_NAME;
cb.cb_columns[1] = GET_COL_PROPERTY;
cb.cb_columns[2] = GET_COL_VALUE;
cb.cb_columns[3] = GET_COL_SOURCE;
cb.cb_type = ZFS_TYPE_POOL;
/* check options */
while ((c = getopt(argc, argv, ":Hpo:")) != -1) {
switch (c) {
case 'p':
cb.cb_literal = B_TRUE;
break;
case 'H':
cb.cb_scripted = B_TRUE;
break;
case 'o':
bzero(&cb.cb_columns, sizeof (cb.cb_columns));
i = 0;
while (*optarg != '\0') {
static char *col_subopts[] =
{ "name", "property", "value", "source",
"all", NULL };
if (i == ZFS_GET_NCOLS) {
(void) fprintf(stderr, gettext("too "
"many fields given to -o "
"option\n"));
usage(B_FALSE);
}
switch (getsubopt(&optarg, col_subopts,
&value)) {
case 0:
cb.cb_columns[i++] = GET_COL_NAME;
break;
case 1:
cb.cb_columns[i++] = GET_COL_PROPERTY;
break;
case 2:
cb.cb_columns[i++] = GET_COL_VALUE;
break;
case 3:
cb.cb_columns[i++] = GET_COL_SOURCE;
break;
case 4:
if (i > 0) {
(void) fprintf(stderr,
gettext("\"all\" conflicts "
"with specific fields "
"given to -o option\n"));
usage(B_FALSE);
}
cb.cb_columns[0] = GET_COL_NAME;
cb.cb_columns[1] = GET_COL_PROPERTY;
cb.cb_columns[2] = GET_COL_VALUE;
cb.cb_columns[3] = GET_COL_SOURCE;
i = ZFS_GET_NCOLS;
break;
default:
(void) fprintf(stderr,
gettext("invalid column name "
"'%s'\n"), value);
usage(B_FALSE);
}
}
break;
case '?':
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
optopt);
usage(B_FALSE);
}
}
argc -= optind;
argv += optind;
if (argc < 1) {
(void) fprintf(stderr, gettext("missing property "
"argument\n"));
usage(B_FALSE);
}
if (zprop_get_list(g_zfs, argv[0], &cb.cb_proplist,
ZFS_TYPE_POOL) != 0)
usage(B_FALSE);
argc--;
argv++;
if (cb.cb_proplist != NULL) {
fake_name.pl_prop = ZPOOL_PROP_NAME;
fake_name.pl_width = strlen(gettext("NAME"));
fake_name.pl_next = cb.cb_proplist;
cb.cb_proplist = &fake_name;
}
ret = for_each_pool(argc, argv, B_TRUE, &cb.cb_proplist,
get_callback, &cb);
if (cb.cb_proplist == &fake_name)
zprop_free_list(fake_name.pl_next);
else
zprop_free_list(cb.cb_proplist);
return (ret);
}
typedef struct set_cbdata {
char *cb_propname;
char *cb_value;
boolean_t cb_any_successful;
} set_cbdata_t;
int
set_callback(zpool_handle_t *zhp, void *data)
{
int error;
set_cbdata_t *cb = (set_cbdata_t *)data;
error = zpool_set_prop(zhp, cb->cb_propname, cb->cb_value);
if (!error)
cb->cb_any_successful = B_TRUE;
return (error);
}
int
zpool_do_set(int argc, char **argv)
{
set_cbdata_t cb = { 0 };
int error;
if (argc > 1 && argv[1][0] == '-') {
(void) fprintf(stderr, gettext("invalid option '%c'\n"),
argv[1][1]);
usage(B_FALSE);
}
if (argc < 2) {
(void) fprintf(stderr, gettext("missing property=value "
"argument\n"));
usage(B_FALSE);
}
if (argc < 3) {
(void) fprintf(stderr, gettext("missing pool name\n"));
usage(B_FALSE);
}
if (argc > 3) {
(void) fprintf(stderr, gettext("too many pool names\n"));
usage(B_FALSE);
}
cb.cb_propname = argv[1];
cb.cb_value = strchr(cb.cb_propname, '=');
if (cb.cb_value == NULL) {
(void) fprintf(stderr, gettext("missing value in "
"property=value argument\n"));
usage(B_FALSE);
}
*(cb.cb_value) = '\0';
cb.cb_value++;
error = for_each_pool(argc - 2, argv + 2, B_TRUE, NULL,
set_callback, &cb);
return (error);
}
static int
find_command_idx(char *command, int *idx)
{
int i;
for (i = 0; i < NCOMMAND; i++) {
if (command_table[i].name == NULL)
continue;
if (strcmp(command, command_table[i].name) == 0) {
*idx = i;
return (0);
}
}
return (1);
}
int
main(int argc, char **argv)
{
int ret = 0;
int i = 0;
char *cmdname;
(void) setlocale(LC_ALL, "");
(void) textdomain(TEXT_DOMAIN);
srand(time(NULL));
opterr = 0;
/*
* Make sure the user has specified some command.
*/
if (argc < 2) {
(void) fprintf(stderr, gettext("missing command\n"));
usage(B_FALSE);
}
cmdname = argv[1];
/*
* Special case '-?'
*/
if ((strcmp(cmdname, "-?") == 0) || strcmp(cmdname, "--help") == 0)
usage(B_TRUE);
if ((g_zfs = libzfs_init()) == NULL) {
(void) fprintf(stderr, "%s", libzfs_error_init(errno));
return (1);
}
libzfs_print_on_error(g_zfs, B_TRUE);
zfs_save_arguments(argc, argv, history_str, sizeof (history_str));
/*
* Run the appropriate command.
*/
if (find_command_idx(cmdname, &i) == 0) {
current_command = &command_table[i];
ret = command_table[i].func(argc - 1, argv + 1);
} else if (strchr(cmdname, '=')) {
verify(find_command_idx("set", &i) == 0);
current_command = &command_table[i];
ret = command_table[i].func(argc, argv);
} else if (strcmp(cmdname, "freeze") == 0 && argc == 3) {
/*
* 'freeze' is a vile debugging abomination, so we treat
* it as such.
*/
zfs_cmd_t zc = {"\0"};
(void) strlcpy(zc.zc_name, argv[2], sizeof (zc.zc_name));
ret = zfs_ioctl(g_zfs, ZFS_IOC_POOL_FREEZE, &zc);
if (ret != 0) {
(void) fprintf(stderr,
gettext("failed to freeze pool: %d\n"), errno);
ret = 1;
}
log_history = 0;
} else {
(void) fprintf(stderr, gettext("unrecognized "
"command '%s'\n"), cmdname);
usage(B_FALSE);
ret = 1;
}
if (ret == 0 && log_history)
(void) zpool_log_history(g_zfs, history_str);
libzfs_fini(g_zfs);
/*
* The 'ZFS_ABORT' environment variable causes us to dump core on exit
* for the purposes of running ::findleaks.
*/
if (getenv("ZFS_ABORT") != NULL) {
(void) printf("dumping core by request\n");
abort();
}
return (ret);
}
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