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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.
*/
#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 <priv.h>
#include <pwd.h>
#include <zone.h>
#include <sys/fs/zfs.h>
#include <sys/stat.h>
#include <libzfs.h>
#include "zpool_util.h"
#include "zfs_comutil.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_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_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_get(int, char **);
static int zpool_do_set(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_LIST,
HELP_OFFLINE,
HELP_ONLINE,
HELP_REPLACE,
HELP_REMOVE,
HELP_SCRUB,
HELP_STATUS,
HELP_UPGRADE,
HELP_GET,
HELP_SET,
HELP_SPLIT
} zpool_help_t;
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 },
{ "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 },
{ 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 },
{ NULL },
{ "history", zpool_do_history, HELP_HISTORY },
{ "get", zpool_do_get, HELP_GET },
{ "set", zpool_do_set, HELP_SET },
};
#define NCOMMAND (sizeof (command_table) / sizeof (command_table[0]))
zpool_command_t *current_command;
static char history_str[HIS_MAX_RECORD_LEN];
static uint_t timestamp_fmt = NODATE;
static const char *
get_usage(zpool_help_t idx) {
switch (idx) {
case HELP_ADD:
return (gettext("\tadd [-fn] <pool> <vdev> ...\n"));
case HELP_ATTACH:
return (gettext("\tattach [-f] <pool> <device> "
"<new-device>\n"));
case HELP_CLEAR:
return (gettext("\tclear [-nF] <pool> [device]\n"));
case HELP_CREATE:
return (gettext("\tcreate [-fn] [-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 [-f] <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] [-n] -F <pool | id>\n"
"\timport [-o mntopts] [-o property=value] ... \n"
"\t [-d dir | -c cachefile] [-D] [-f] [-R root] -a\n"
"\timport [-o mntopts] [-o property=value] ... \n"
"\t [-d dir | -c cachefile] [-D] [-f] [-R root] "
"<pool | id> [newpool]\n"));
case HELP_IOSTAT:
return (gettext("\tiostat [-v] [-T d|u] [pool] ... [interval "
"[count]]\n"));
case HELP_LIST:
return (gettext("\tlist [-H] [-o property[,...]] "
"[-T d|u] [pool] ... [interval [count]]\n"));
case HELP_OFFLINE:
return (gettext("\toffline [-t] <pool> <device> ...\n"));
case HELP_ONLINE:
return (gettext("\tonline <pool> <device> ...\n"));
case HELP_REPLACE:
return (gettext("\treplace [-f] <pool> <device> "
"[new-device]\n"));
case HELP_REMOVE:
return (gettext("\tremove <pool> <device> ...\n"));
case HELP_SCRUB:
return (gettext("\tscrub [-s] <pool> ...\n"));
case HELP_STATUS:
return (gettext("\tstatus [-vx] [-T d|u] [pool] ... [interval "
"[count]]\n"));
case HELP_UPGRADE:
return (gettext("\tupgrade\n"
"\tupgrade -v\n"
"\tupgrade [-V version] <-a | pool ...>\n"));
case HELP_GET:
return (gettext("\tget <\"all\" | property[,...]> "
"<pool> ...\n"));
case HELP_SET:
return (gettext("\tset <property=value> <pool> \n"));
case HELP_SPLIT:
return (gettext("\tsplit [-n] [-R altroot] [-o mntopts]\n"
"\t [-o property=value] <pool> <newpool> "
"[<device> ...]\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);
}
/*
* 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)
{
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], B_FALSE);
print_vdev_tree(zhp, vname, child[c], indent + 2,
B_FALSE);
free(vname);
}
}
/*
* 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 = ZPROP_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) {
if ((prop = zpool_name_to_prop(propname)) == ZPROP_INVAL) {
(void) fprintf(stderr, gettext("property '%s' is "
"not a valid pool property\n"), propname);
return (2);
}
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);
}
/*
* zpool add [-fn] <pool> <vdev> ...
*
* -f Force addition of devices, even if they appear in use
* -n Do not add the devices, but display the resulting layout if
* they were to be added.
*
* 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 c;
nvlist_t *nvroot;
char *poolname;
int ret;
zpool_handle_t *zhp;
nvlist_t *config;
/* check options */
while ((c = getopt(argc, argv, "fn")) != -1) {
switch (c) {
case 'f':
force = B_TRUE;
break;
case 'n':
dryrun = 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 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);
}
/* pass off to get_vdev_spec for processing */
nvroot = make_root_vdev(zhp, force, !force, B_FALSE, dryrun,
argc, argv);
if (nvroot == NULL) {
zpool_close(zhp);
return (1);
}
if (dryrun) {
nvlist_t *poolnvroot;
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);
print_vdev_tree(zhp, NULL, nvroot, 0, B_FALSE);
/* Do the same for the logs */
if (num_logs(poolnvroot) > 0) {
print_vdev_tree(zhp, "logs", poolnvroot, 0, B_TRUE);
print_vdev_tree(zhp, NULL, nvroot, 0, B_TRUE);
} else if (num_logs(nvroot) > 0) {
print_vdev_tree(zhp, "logs", nvroot, 0, B_TRUE);
}
ret = 0;
} else {
ret = (zpool_add(zhp, nvroot) != 0);
}
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;
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;
}
return (ret);
}
/*
* zpool create [-fn] [-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 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;
int c;
nvlist_t *nvroot = NULL;
char *poolname;
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, ":fnR:m:o:O:")) != -1) {
switch (c) {
case 'f':
force = B_TRUE;
break;
case 'n':
dryrun = B_TRUE;
break;
case 'R':
altroot = optarg;
if (add_prop_list(zpool_prop_to_name(
ZPOOL_PROP_ALTROOT), optarg, &props, B_TRUE))
goto errout;
if (nvlist_lookup_string(props,
zpool_prop_to_name(ZPOOL_PROP_CACHEFILE),
&propval) == 0)
break;
if (add_prop_list(zpool_prop_to_name(
ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
goto errout;
break;
case 'm':
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;
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, &fsprops, B_FALSE))
goto errout;
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, 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;
}
}
}
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);
if (num_logs(nvroot) > 0)
print_vdev_tree(NULL, "logs", nvroot, 0, B_TRUE);
ret = 0;
} else {
/*
* Hand off to libzfs.
*/
if (zpool_create(g_zfs, poolname,
nvroot, props, fsprops) == 0) {
zfs_handle_t *pool = zfs_open(g_zfs, poolname,
ZFS_TYPE_FILESYSTEM);
if (pool != NULL) {
if (mountpoint != NULL)
verify(zfs_prop_set(pool,
zfs_prop_to_name(
ZFS_PROP_MOUNTPOINT),
mountpoint) == 0);
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));
return (1);
}
ret = (zpool_destroy(zhp) != 0);
zpool_close(zhp);
return (ret);
}
/*
* zpool export [-f] <pool> ...
*
* -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)
{
boolean_t force = B_FALSE;
boolean_t hardforce = B_FALSE;
int c;
zpool_handle_t *zhp;
int ret;
int i;
/* check options */
while ((c = getopt(argc, argv, "fF")) != -1) {
switch (c) {
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);
}
}
argc -= optind;
argv += optind;
/* check arguments */
if (argc < 1) {
(void) fprintf(stderr, gettext("missing pool argument\n"));
usage(B_FALSE);
}
ret = 0;
for (i = 0; i < argc; i++) {
if ((zhp = zpool_open_canfail(g_zfs, argv[i])) == NULL) {
ret = 1;
continue;
}
if (zpool_disable_datasets(zhp, force) != 0) {
ret = 1;
zpool_close(zhp);
continue;
}
if (hardforce) {
if (zpool_export_force(zhp) != 0)
ret = 1;
} else if (zpool_export(zhp, force) != 0) {
ret = 1;
}
zpool_close(zhp);
}
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)
{
char *name = zpool_vdev_name(g_zfs, zhp, nv, B_TRUE);
nvlist_t **child;
uint_t c, children;
int ret;
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)) > 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)) > 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)) > 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);
}
/*
* Print out configuration state as requested by status_callback.
*/
void
print_status_config(zpool_handle_t *zhp, const char *name, nvlist_t *nv,
int namewidth, 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 cb;
char *state;
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, "", 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) {
char *path;
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_SPARED:
verify(nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID,
&cb.cb_guid) == 0);
if (zpool_iter(g_zfs, find_spare, &cb) == 1) {
if (strcmp(zpool_get_name(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(cb.cb_zhp));
zpool_close(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;
default:
(void) printf(gettext("corrupted data"));
break;
}
}
(void) nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_SCAN_STATS,
(uint64_t **)&ps, &c);
if (ps && ps->pss_state == DSS_SCANNING &&
vs->vs_scan_processed != 0 && children == 0) {
(void) printf(gettext(" (%s)"),
(ps->pss_func == POOL_SCAN_RESILVER) ?
"resilvering" : "repairing");
}
(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], B_TRUE);
print_status_config(zhp, vname, child[c],
namewidth, 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.
*/
void
print_import_config(const char *name, nvlist_t *nv, int namewidth, 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, "", 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_ERR_EXCEEDED:
(void) printf(gettext("too many errors"));
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], B_TRUE);
print_import_config(vname, child[c], namewidth, 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], B_FALSE);
(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], B_FALSE);
(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, nvlist_t *nv, int namewidth, boolean_t verbose)
{
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], B_TRUE);
if (verbose)
print_status_config(zhp, name, child[c], namewidth,
2, B_FALSE);
else
print_import_config(name, child[c], namewidth, 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;
char *msgid;
nvlist_t *nvroot;
int reason;
const char *health;
uint_t vsc;
int namewidth;
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);
(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 an "
"older 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_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;
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)
(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
(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_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;
default:
(void) printf(gettext("action: The pool cannot be "
"imported due to damaged devices or data.\n"));
}
}
/*
* 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://www.sun.com/msg/%s\n"),
msgid);
(void) printf(gettext("config:\n\n"));
namewidth = max_width(NULL, nvroot, 0, 0);
if (namewidth < 10)
namewidth = 10;
print_import_config(name, nvroot, namewidth, 0);
if (num_logs(nvroot) > 0)
print_logs(NULL, nvroot, namewidth, B_FALSE);
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"));
}
}
/*
* 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,
int force, nvlist_t *props, boolean_t do_verbatim)
{
zpool_handle_t *zhp;
char *name;
uint64_t state;
uint64_t version;
verify(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
&name) == 0);
verify(nvlist_lookup_uint64(config,
ZPOOL_CONFIG_POOL_STATE, &state) == 0);
verify(nvlist_lookup_uint64(config,
ZPOOL_CONFIG_VERSION, &version) == 0);
if (version > SPA_VERSION) {
(void) fprintf(stderr, gettext("cannot import '%s': pool "
"is formatted using a newer ZFS version\n"), name);
return (1);
} else if (state != POOL_STATE_EXPORTED && !force) {
uint64_t hostid;
if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_HOSTID,
&hostid) == 0) {
if ((unsigned long)hostid != gethostid()) {
char *hostname;
uint64_t timestamp;
time_t t;
verify(nvlist_lookup_string(config,
ZPOOL_CONFIG_HOSTNAME, &hostname) == 0);
verify(nvlist_lookup_uint64(config,
ZPOOL_CONFIG_TIMESTAMP, &timestamp) == 0);
t = timestamp;
(void) fprintf(stderr, gettext("cannot import "
"'%s': pool may be in use from other "
"system, it was last accessed by %s "
"(hostid: 0x%lx) on %s"), name, hostname,
(unsigned long)hostid,
asctime(localtime(&t)));
(void) fprintf(stderr, gettext("use '-f' to "
"import anyway\n"));
return (1);
}
} else {
(void) fprintf(stderr, gettext("cannot import '%s': "
"pool may be in use from other system\n"), name);
(void) fprintf(stderr, gettext("use '-f' to import "
"anyway\n"));
return (1);
}
}
if (zpool_import_props(g_zfs, config, newname, props, do_verbatim) != 0)
return (1);
if (newname != NULL)
name = (char *)newname;
if ((zhp = zpool_open_canfail(g_zfs, name)) == NULL)
return (1);
if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL &&
zpool_enable_datasets(zhp, mntopts, 0) != 0) {
zpool_close(zhp);
return (1);
}
zpool_close(zhp);
return (0);
}
/*
* zpool import [-d dir] [-D]
* import [-o mntopts] [-o prop=value] ... [-R root] [-D]
* [-d dir | -c cachefile] [-f] -a
* import [-o mntopts] [-o prop=value] ... [-R root] [-D]
* [-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/dsk. 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.
*
* -a Import all pools found.
*
* -o Set property=value and/or temporary mount options (without '=').
*
* 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;
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;
boolean_t do_force = B_FALSE;
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;
boolean_t do_verbatim = B_FALSE;
uint32_t rewind_policy = ZPOOL_NO_REWIND;
boolean_t dryrun = B_FALSE;
boolean_t do_rewind = B_FALSE;
boolean_t xtreme_rewind = B_FALSE;
uint64_t pool_state;
char *cachefile = NULL;
importargs_t idata = { 0 };
/* check options */
while ((c = getopt(argc, argv, ":aCc:d:DEfFno:rR: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':
do_force = B_TRUE;
break;
case 'F':
do_rewind = B_TRUE;
break;
case 'n':
dryrun = B_TRUE;
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 (nvlist_lookup_string(props,
zpool_prop_to_name(ZPOOL_PROP_CACHEFILE),
&propval) == 0)
break;
if (add_prop_list(zpool_prop_to_name(
ZPOOL_PROP_CACHEFILE), "none", &props, B_TRUE))
goto error;
break;
case 'V':
do_verbatim = B_TRUE;
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 ((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_uint32(policy, ZPOOL_REWIND_REQUEST, rewind_policy) != 0)
goto error;
if (searchdirs == NULL) {
searchdirs = safe_malloc(sizeof (char *));
searchdirs[0] = "/dev/dsk";
nsearch = 1;
}
/* 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 SYS_CONFIG privilege. We do this explicitly
* here because otherwise any attempt to discover pools will
* silently fail.
*/
if (argc == 0 && !priv_ineffect(PRIV_SYS_CONFIG)) {
(void) fprintf(stderr, gettext("cannot "
"discover pools: permission denied\n"));
free(searchdirs);
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];
found_config = NULL;
/*
* User specified a name or guid. Ensure it's unique.
*/
idata.unique = B_TRUE;
}
idata.path = searchdirs;
idata.paths = nsearch;
idata.poolname = searchname;
idata.guid = searchguid;
idata.cachefile = cachefile;
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) {
free(searchdirs);
nvlist_free(policy);
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,
do_force, props, do_verbatim);
} 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, do_force, props, do_verbatim);
}
}
/*
* 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);
free(searchdirs);
return (err ? 1 : 0);
}
typedef struct iostat_cbdata {
zpool_list_t *cb_list;
int cb_verbose;
int cb_iteration;
int cb_namewidth;
} iostat_cbdata_t;
static void
print_iostat_separator(iostat_cbdata_t *cb)
{
int i = 0;
for (i = 0; i < cb->cb_namewidth; i++)
(void) printf("-");
(void) printf(" ----- ----- ----- ----- ----- -----\n");
}
static void
print_iostat_header(iostat_cbdata_t *cb)
{
(void) printf("%*s capacity operations bandwidth\n",
cb->cb_namewidth, "");
(void) printf("%-*s alloc free read write read write\n",
cb->cb_namewidth, "pool");
print_iostat_separator(cb);
}
/*
* Display a single statistic.
*/
static void
print_one_stat(uint64_t value)
{
char buf[64];
zfs_nicenum(value, buf, sizeof (buf));
(void) printf(" %5s", buf);
}
/*
* 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.
*/
void
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;
vdev_stat_t *oldvs, *newvs;
vdev_stat_t zerovs = { 0 };
uint64_t tdelta;
double scale;
char *vname;
if (oldnv != NULL) {
verify(nvlist_lookup_uint64_array(oldnv,
ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&oldvs, &c) == 0);
} else {
oldvs = &zerovs;
}
verify(nvlist_lookup_uint64_array(newnv, ZPOOL_CONFIG_VDEV_STATS,
(uint64_t **)&newvs, &c) == 0);
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), "");
tdelta = newvs->vs_timestamp - oldvs->vs_timestamp;
if (tdelta == 0)
scale = 1.0;
else
scale = (double)NANOSEC / tdelta;
/* only toplevel vdevs have capacity stats */
if (newvs->vs_space == 0) {
(void) printf(" - -");
} else {
print_one_stat(newvs->vs_alloc);
print_one_stat(newvs->vs_space - newvs->vs_alloc);
}
print_one_stat((uint64_t)(scale * (newvs->vs_ops[ZIO_TYPE_READ] -
oldvs->vs_ops[ZIO_TYPE_READ])));
print_one_stat((uint64_t)(scale * (newvs->vs_ops[ZIO_TYPE_WRITE] -
oldvs->vs_ops[ZIO_TYPE_WRITE])));
print_one_stat((uint64_t)(scale * (newvs->vs_bytes[ZIO_TYPE_READ] -
oldvs->vs_bytes[ZIO_TYPE_READ])));
print_one_stat((uint64_t)(scale * (newvs->vs_bytes[ZIO_TYPE_WRITE] -
oldvs->vs_bytes[ZIO_TYPE_WRITE])));
(void) printf("\n");
if (!cb->cb_verbose)
return;
if (nvlist_lookup_nvlist_array(newnv, ZPOOL_CONFIG_CHILDREN,
&newchild, &children) != 0)
return;
if (oldnv && nvlist_lookup_nvlist_array(oldnv, ZPOOL_CONFIG_CHILDREN,
&oldchild, &c) != 0)
return;
for (c = 0; c < children; c++) {
uint64_t ishole = B_FALSE;
if (nvlist_lookup_uint64(newchild[c],
ZPOOL_CONFIG_IS_HOLE, &ishole) == 0 && ishole)
continue;
vname = zpool_vdev_name(g_zfs, zhp, newchild[c], B_FALSE);
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;
if (oldnv && nvlist_lookup_nvlist_array(oldnv, ZPOOL_CONFIG_L2CACHE,
&oldchild, &c) != 0)
return;
if (children > 0) {
(void) printf("%-*s - - - - - "
"-\n", cb->cb_namewidth, "cache");
for (c = 0; c < children; c++) {
vname = zpool_vdev_name(g_zfs, zhp, newchild[c],
B_FALSE);
print_vdev_stats(zhp, vname, oldnv ? oldchild[c] : NULL,
newchild[c], cb, depth + 2);
free(vname);
}
}
}
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;
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);
/*
* Print out the statistics for the pool.
*/
print_vdev_stats(zhp, zpool_get_name(zhp), oldnvroot, newnvroot, cb, 0);
if (cb->cb_verbose)
print_iostat_separator(cb);
return (0);
}
int
get_namewidth(zpool_handle_t *zhp, void *data)
{
iostat_cbdata_t *cb = data;
nvlist_t *config, *nvroot;
if ((config = zpool_get_config(zhp, NULL)) != NULL) {
verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
&nvroot) == 0);
if (!cb->cb_verbose)
cb->cb_namewidth = strlen(zpool_get_name(zhp));
else
cb->cb_namewidth = max_width(zhp, nvroot, 0, 0);
}
/*
* The width must fall into the range [10,38]. The upper limit is the
* maximum we can have and still fit in 80 columns.
*/
if (cb->cb_namewidth < 10)
cb->cb_namewidth = 10;
if (cb->cb_namewidth > 38)
cb->cb_namewidth = 38;
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, unsigned long *iv,
unsigned long *cnt)
{
unsigned long interval = 0, count = 0;
int argc = *argcp;
/*
* Determine if the last argument is an integer or a pool name
*/
if (argc > 0 && isdigit(argv[argc - 1][0])) {
char *end;
errno = 0;
interval = strtoul(argv[argc - 1], &end, 10);
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 && isdigit(argv[argc - 1][0])) {
char *end;
errno = 0;
count = interval;
interval = strtoul(argv[argc - 1], &end, 10);
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);
}
/*
* zpool iostat [-v] [-T d|u] [pool] ... [interval [count]]
*
* -v Display statistics for individual vdevs
* -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;
unsigned long interval = 0, count = 0;
zpool_list_t *list;
boolean_t verbose = B_FALSE;
iostat_cbdata_t cb;
/* check options */
while ((c = getopt(argc, argv, "T:v")) != -1) {
switch (c) {
case 'T':
get_timestamp_arg(*optarg);
break;
case 'v':
verbose = B_TRUE;
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);
/*
* 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);
}
/*
* Enter the main iostat loop.
*/
cb.cb_list = list;
cb.cb_verbose = verbose;
cb.cb_iteration = 0;
cb.cb_namewidth = 0;
for (;;) {
pool_list_update(list);
if ((npools = pool_list_count(list)) == 0)
break;
/*
* 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 it's the first time, or verbose mode, print the header.
*/
if (++cb.cb_iteration == 1 || verbose)
print_iostat_header(&cb);
(void) 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.
*/
if (npools > 1 && !verbose)
print_iostat_separator(&cb);
if (verbose)
(void) printf("\n");
/*
* 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) sleep(interval);
}
pool_list_free(list);
return (ret);
}
typedef struct list_cbdata {
boolean_t cb_scripted;
boolean_t cb_first;
zprop_list_t *cb_proplist;
} list_cbdata_t;
/*
* Given a list of columns to display, output appropriate headers for each one.
*/
static void
print_header(zprop_list_t *pl)
{
const char *header;
boolean_t first = B_TRUE;
boolean_t right_justify;
for (; pl != NULL; pl = pl->pl_next) {
if (pl->pl_prop == ZPROP_INVAL)
continue;
if (!first)
(void) printf(" ");
else
first = B_FALSE;
header = zpool_prop_column_name(pl->pl_prop);
right_justify = zpool_prop_align_right(pl->pl_prop);
if (pl->pl_next == NULL && !right_justify)
(void) printf("%s", header);
else if (right_justify)
(void) printf("%*s", (int)pl->pl_width, header);
else
(void) printf("%-*s", (int)pl->pl_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, zprop_list_t *pl, int scripted)
{
boolean_t first = B_TRUE;
char property[ZPOOL_MAXPROPLEN];
char *propstr;
boolean_t right_justify;
int width;
for (; pl != NULL; pl = pl->pl_next) {
if (!first) {
if (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) != 0)
propstr = "-";
else
propstr = property;
right_justify = zpool_prop_align_right(pl->pl_prop);
} else {
propstr = "-";
}
width = pl->pl_width;
/*
* 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 (scripted || (pl->pl_next == NULL && !right_justify))
(void) printf("%s", propstr);
else if (right_justify)
(void) printf("%*s", width, propstr);
else
(void) printf("%-*s", width, propstr);
}
(void) printf("\n");
}
/*
* Generic callback function to list a pool.
*/
int
list_callback(zpool_handle_t *zhp, void *data)
{
list_cbdata_t *cbp = data;
if (cbp->cb_first) {
if (!cbp->cb_scripted)
print_header(cbp->cb_proplist);
cbp->cb_first = B_FALSE;
}
print_pool(zhp, cbp->cb_proplist, cbp->cb_scripted);
return (0);
}
/*
* zpool list [-H] [-o prop[,prop]*] [-T d|u] [pool] ... [interval [count]]
*
* -H Scripted mode. Don't display headers, and separate properties
* by a single tab.
* -o List of properties to display. Defaults to
* "name,size,allocated,free,capacity,health,altroot"
* -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;
list_cbdata_t cb = { 0 };
static char default_props[] =
"name,size,allocated,free,capacity,dedupratio,health,altroot";
char *props = default_props;
unsigned long interval = 0, count = 0;
/* check options */
while ((c = getopt(argc, argv, ":Ho:T:")) != -1) {
switch (c) {
case 'H':
cb.cb_scripted = B_TRUE;
break;
case 'o':
props = optarg;
break;
case 'T':
get_timestamp_arg(*optarg);
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);
cb.cb_first = B_TRUE;
for (;;) {
if (timestamp_fmt != NODATE)
print_timestamp(timestamp_fmt);
ret = for_each_pool(argc, argv, B_TRUE, &cb.cb_proplist,
list_callback, &cb);
if (argc == 0 && cb.cb_first && !cb.cb_scripted) {
(void) printf(gettext("no pools available\n"));
zprop_free_list(cb.cb_proplist);
return (0);
}
if (interval == 0)
break;
if (count != 0 && --count == 0)
break;
(void) sleep(interval);
}
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;
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;
/* 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)
return (1);
if (zpool_get_config(zhp, NULL) == NULL) {
(void) fprintf(stderr, gettext("pool '%s' is unavailable\n"),
poolname);
zpool_close(zhp);
return (1);
}
nvroot = make_root_vdev(zhp, force, B_FALSE, replacing, B_FALSE,
argc, argv);
if (nvroot == NULL) {
zpool_close(zhp);
return (1);
}
ret = zpool_vdev_attach(zhp, old_disk, new_disk, nvroot, replacing);
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] <pool> <device> <new_device>
*
* -f Force attach, even if <new_device> appears to be in use.
*
* 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 [-n] [-o prop=val] ...
* [-o mntopt] ...
* [-R altroot] <pool> <newpool> [<device> ...]
*
* -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.
* -R Mount the split-off pool under an alternate root.
*
* 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;
zpool_handle_t *zhp;
nvlist_t *config, *props = NULL;
flags.dryrun = B_FALSE;
flags.import = B_FALSE;
/* check options */
while ((c = getopt(argc, argv, ":R:no:")) != -1) {
switch (c) {
case 'R':
flags.import = B_TRUE;
if (add_prop_list(
zpool_prop_to_name(ZPOOL_PROP_ALTROOT), optarg,
&props, B_TRUE) != 0) {
if (props)
nvlist_free(props);
usage(B_FALSE);
}
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) {
if (props)
nvlist_free(props);
usage(B_FALSE);
}
} else {
mntopts = optarg;
}
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);
}
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)
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);
}
nvlist_free(config);
}
zpool_close(zhp);
if (ret != 0 || flags.dryrun || !flags.import)
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)
return (1);
if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL &&
zpool_enable_datasets(zhp, mntopts, 0) != 0) {
ret = 1;
(void) fprintf(stderr, gettext("Split was succssful, 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);
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 the offline state, even if doing
* so would appear to compromise pool availability.
* (not supported yet)
*
* -t Only take the device off-line temporarily. The offline
* 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;
/* check options */
while ((c = getopt(argc, argv, "ft")) != -1) {
switch (c) {
case 't':
istmp = B_TRUE;
break;
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\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_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);
}
typedef struct scrub_cbdata {
int cb_type;
int cb_argc;
char **cb_argv;
} 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);
return (err != 0);
}
/*
* zpool scrub [-s] <pool> ...
*
* -s Stop. Stops any in-progress scrub.
*/
int
zpool_do_scrub(int argc, char **argv)
{
int c;
scrub_cbdata_t cb;
cb.cb_type = POOL_SCAN_SCRUB;
/* check options */
while ((c = getopt(argc, argv, "s")) != -1) {
switch (c) {
case 's':
cb.cb_type = POOL_SCAN_NONE;
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 (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));
}
typedef struct status_cbdata {
int cb_count;
boolean_t cb_allpools;
boolean_t cb_verbose;
boolean_t cb_explain;
boolean_t cb_first;
boolean_t cb_dedup_stats;
} status_cbdata_t;
/*
* Print out detailed scrub status.
*/
void
print_scan_status(pool_scan_stat_t *ps)
{
time_t start, end;
uint64_t elapsed, mins_left;
uint64_t pass_exam, examined, total;
uint_t rate;
double fraction_done;
char processed_buf[7], examined_buf[7], total_buf[7], rate_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;
zfs_nicenum(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) {
uint64_t minutes_taken = (end - start) / 60;
char *fmt = NULL;
if (ps->pss_func == POOL_SCAN_SCRUB) {
fmt = gettext("scrub repaired %s in %lluh%um with "
"%llu errors on %s");
} else if (ps->pss_func == POOL_SCAN_RESILVER) {
fmt = gettext("resilvered %s in %lluh%um with "
"%llu errors on %s");
}
/* LINTED */
(void) printf(fmt, processed_buf,
(u_longlong_t)(minutes_taken / 60),
(uint_t)(minutes_taken % 60),
(u_longlong_t)ps->pss_errors,
ctime((time_t *)&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.
*/
if (ps->pss_func == POOL_SCAN_SCRUB) {
(void) printf(gettext("scrub in progress since %s"),
ctime(&start));
} else if (ps->pss_func == POOL_SCAN_RESILVER) {
(void) printf(gettext("resilver in progress since %s"),
ctime(&start));
}
examined = ps->pss_examined ? ps->pss_examined : 1;
total = ps->pss_to_examine;
fraction_done = (double)examined / total;
/* elapsed time for this pass */
elapsed = time(NULL) - ps->pss_pass_start;
elapsed = elapsed ? elapsed : 1;
pass_exam = ps->pss_pass_exam ? ps->pss_pass_exam : 1;
rate = pass_exam / elapsed;
rate = rate ? rate : 1;
mins_left = ((total - examined) / rate) / 60;
zfs_nicenum(examined, examined_buf, sizeof (examined_buf));
zfs_nicenum(total, total_buf, sizeof (total_buf));
zfs_nicenum(rate, rate_buf, sizeof (rate_buf));
(void) printf(gettext(" %s scanned out of %s at "
"%s/s, %lluh%um to go\n"), examined_buf, total_buf, rate_buf,
(u_longlong_t)(mins_left / 60),
(uint_t)(mins_left % 60));
if (ps->pss_func == POOL_SCAN_RESILVER) {
(void) printf(gettext(" %s resilvered, %.2f%% done\n"),
processed_buf, 100 * fraction_done);
} else if (ps->pss_func == POOL_SCAN_SCRUB) {
(void) printf(gettext(" %s repaired, %.2f%% done\n"),
processed_buf, 100 * fraction_done);
}
}
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) {
(void) printf("errors: List of errors unavailable "
"(insufficient privileges)\n");
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, nvlist_t **spares, uint_t nspares,
int namewidth)
{
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], B_FALSE);
print_status_config(zhp, name, spares[i],
namewidth, 2, B_TRUE);
free(name);
}
}
static void
print_l2cache(zpool_handle_t *zhp, nvlist_t **l2cache, uint_t nl2cache,
int namewidth)
{
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], B_FALSE);
print_status_config(zhp, name, l2cache[i],
namewidth, 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;
/*
* If the pool was faulted then we may not have been able to
* obtain the config. Otherwise, if 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 || ddo->ddo_count == 0)
return;
(void) printf("\n");
(void) printf("DDT entries %llu, size %llu on disk, %llu in core\n",
(u_longlong_t)ddo->ddo_count,
(u_longlong_t)ddo->ddo_dspace,
(u_longlong_t)ddo->ddo_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://www.sun.com/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;
int reason;
const char *health;
uint_t c;
vdev_stat_t *vs;
config = zpool_get_config(zhp, NULL);
reason = zpool_get_status(zhp, &msgid);
cbp->cb_count++;
/*
* If we were given 'zpool status -x', only report those pools with
* problems.
*/
if (reason == ZPOOL_STATUS_OK && cbp->cb_explain) {
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 an "
"older 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 older software versions.\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_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_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 adminstrator 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;
default:
/*
* The remaining errors can't actually be generated, yet.
*/
assert(reason == ZPOOL_STATUS_OK);
}
if (msgid != NULL)
(void) printf(gettext(" see: http://www.sun.com/msg/%s\n"),
msgid);
if (config != NULL) {
int namewidth;
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);
namewidth = max_width(zhp, nvroot, 0, 0);
if (namewidth < 10)
namewidth = 10;
(void) printf(gettext("config:\n\n"));
(void) printf(gettext("\t%-*s %-8s %5s %5s %5s\n"), namewidth,
"NAME", "STATE", "READ", "WRITE", "CKSUM");
print_status_config(zhp, zpool_get_name(zhp), nvroot,
namewidth, 0, B_FALSE);
if (num_logs(nvroot) > 0)
print_logs(zhp, nvroot, namewidth, B_TRUE);
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE,
&l2cache, &nl2cache) == 0)
print_l2cache(zhp, l2cache, nl2cache, namewidth);
if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
&spares, &nspares) == 0)
print_spares(zhp, spares, nspares, namewidth);
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 [-vx] [-T d|u] [pool] ... [interval [count]]
*
* -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;
unsigned long interval = 0, count = 0;
status_cbdata_t cb = { 0 };
/* check options */
while ((c = getopt(argc, argv, "vxDT:")) != -1) {
switch (c) {
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 '?':
(void) 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;
for (;;) {
if (timestamp_fmt != NODATE)
print_timestamp(timestamp_fmt);
ret = for_each_pool(argc, argv, B_TRUE, NULL,
status_callback, &cb);
if (argc == 0 && cb.cb_count == 0)
(void) printf(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) sleep(interval);
}
return (0);
}
typedef struct upgrade_cbdata {
int cb_all;
int cb_first;
int cb_newer;
int cb_argc;
uint64_t cb_version;
char **cb_argv;
} upgrade_cbdata_t;
static int
upgrade_cb(zpool_handle_t *zhp, void *arg)
{
upgrade_cbdata_t *cbp = arg;
nvlist_t *config;
uint64_t version;
int ret = 0;
config = zpool_get_config(zhp, NULL);
verify(nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
&version) == 0);
if (!cbp->cb_newer && version < SPA_VERSION) {
if (!cbp->cb_all) {
if (cbp->cb_first) {
(void) printf(gettext("The following pools are "
"out of date, and can be upgraded. After "
"being\nupgraded, these pools will no "
"longer be accessible by older software "
"versions.\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));
} else {
cbp->cb_first = B_FALSE;
ret = zpool_upgrade(zhp, cbp->cb_version);
if (!ret) {
(void) printf(gettext("Successfully upgraded "
"'%s'\n\n"), zpool_get_name(zhp));
}
}
} else if (cbp->cb_newer && version > SPA_VERSION) {
assert(!cbp->cb_all);
if (cbp->cb_first) {
(void) printf(gettext("The following pools are "
"formatted using a newer software version and\n"
"cannot be accessed on the current system.\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));
}
zpool_close(zhp);
return (ret);
}
/* ARGSUSED */
static int
upgrade_one(zpool_handle_t *zhp, void *data)
{
upgrade_cbdata_t *cbp = data;
uint64_t cur_version;
int ret;
if (strcmp("log", zpool_get_name(zhp)) == 0) {
(void) printf(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"),
zpool_get_name(zhp), (u_longlong_t) cur_version);
return (0);
}
if (cur_version == cbp->cb_version) {
(void) printf(gettext("Pool '%s' is already formatted "
"using the current version.\n"), zpool_get_name(zhp));
return (0);
}
ret = zpool_upgrade(zhp, cbp->cb_version);
if (!ret) {
(void) printf(gettext("Successfully upgraded '%s' "
"from version %llu to version %llu\n\n"),
zpool_get_name(zhp), (u_longlong_t)cur_version,
(u_longlong_t)cbp->cb_version);
}
return (ret != 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;
char *end;
/* check options */
while ((c = getopt(argc, argv, ":avV:")) != -1) {
switch (c) {
case 'a':
cb.cb_all = B_TRUE;
break;
case 'v':
showversions = B_TRUE;
break;
case 'V':
cb.cb_version = strtoll(optarg, &end, 10);
if (*end != '\0' || cb.cb_version > SPA_VERSION ||
cb.cb_version < SPA_VERSION_1) {
(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 (!cb.cb_all && argc == 0) {
(void) fprintf(stderr, gettext("-V option is "
"incompatible with other arguments\n"));
usage(B_FALSE);
}
if (showversions) {
if (cb.cb_all || argc != 0) {
(void) fprintf(stderr, gettext("-v option is "
"incompatible with other arguments\n"));
usage(B_FALSE);
}
} else if (cb.cb_all) {
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 is currently running "
"ZFS pool version %llu.\n\n"), SPA_VERSION);
cb.cb_first = B_TRUE;
if (showversions) {
(void) printf(gettext("The following versions are "
"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("\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) {
int notfound;
ret = zpool_iter(g_zfs, upgrade_cb, &cb);
notfound = cb.cb_first;
if (!cb.cb_all && ret == 0) {
if (!cb.cb_first)
(void) printf("\n");
cb.cb_first = B_TRUE;
cb.cb_newer = B_TRUE;
ret = zpool_iter(g_zfs, upgrade_cb, &cb);
if (!cb.cb_first) {
notfound = B_FALSE;
(void) printf("\n");
}
}
if (ret == 0) {
if (notfound)
(void) printf(gettext("All pools are formatted "
"using this version.\n"));
else if (!cb.cb_all)
(void) printf(gettext("Use 'zpool upgrade -v' "
"for a list of available versions and "
"their associated\nfeatures.\n"));
}
} else {
ret = for_each_pool(argc, argv, B_FALSE, NULL,
upgrade_one, &cb);
}
return (ret);
}
typedef struct hist_cbdata {
boolean_t first;
int longfmt;
int 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;
char *cmdstr;
char *pathstr;
uint64_t dst_time;
time_t tsec;
struct tm t;
char tbuf[30];
int ret, i;
uint64_t who;
struct passwd *pwd;
char *hostname;
char *zonename;
char internalstr[MAXPATHLEN];
hist_cbdata_t *cb = (hist_cbdata_t *)data;
uint64_t txg;
uint64_t ievent;
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++) {
if (nvlist_lookup_uint64(records[i], ZPOOL_HIST_TIME,
&dst_time) != 0)
continue;
/* is it an internal event or a standard event? */
if (nvlist_lookup_string(records[i], ZPOOL_HIST_CMD,
&cmdstr) != 0) {
if (cb->internal == 0)
continue;
if (nvlist_lookup_uint64(records[i],
ZPOOL_HIST_INT_EVENT, &ievent) != 0)
continue;
verify(nvlist_lookup_uint64(records[i],
ZPOOL_HIST_TXG, &txg) == 0);
verify(nvlist_lookup_string(records[i],
ZPOOL_HIST_INT_STR, &pathstr) == 0);
if (ievent >= LOG_END)
continue;
(void) snprintf(internalstr,
sizeof (internalstr),
"[internal %s txg:%llu] %s",
zfs_history_event_names[ievent], (u_longlong_t)txg,
pathstr);
cmdstr = internalstr;
}
tsec = dst_time;
(void) localtime_r(&tsec, &t);
(void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
(void) printf("%s %s", tbuf, cmdstr);
if (!cb->longfmt) {
(void) printf("\n");
continue;
}
(void) printf(" [");
if (nvlist_lookup_uint64(records[i],
ZPOOL_HIST_WHO, &who) == 0) {
pwd = getpwuid((uid_t)who);
if (pwd)
(void) printf("user %s on",
pwd->pw_name);
else
(void) printf("user %d on",
(int)who);
} else {
(void) printf(gettext("no info]\n"));
continue;
}
if (nvlist_lookup_string(records[i],
ZPOOL_HIST_HOST, &hostname) == 0) {
(void) printf(" %s", hostname);
}
if (nvlist_lookup_string(records[i],
ZPOOL_HIST_ZONE, &zonename) == 0) {
(void) printf(":%s", zonename);
}
(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 = 1;
break;
case 'i':
cbdata.internal = 1;
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) printf(gettext("no pools available\n"));
return (0);
}
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 (zpool_get_prop(zhp, pl->pl_prop,
value, sizeof (value), &srctype) != 0)
continue;
zprop_print_one_property(zpool_get_name(zhp), cbp,
zpool_prop_to_name(pl->pl_prop), value, srctype, NULL,
NULL);
}
return (0);
}
int
zpool_do_get(int argc, char **argv)
{
zprop_get_cbdata_t cb = { 0 };
zprop_list_t fake_name = { 0 };
int ret;
if (argc < 3)
usage(B_FALSE);
cb.cb_first = B_TRUE;
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;
if (zprop_get_list(g_zfs, argv[1], &cb.cb_proplist,
ZFS_TYPE_POOL) != 0)
usage(B_FALSE);
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 - 2, argv + 2, 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;
int i = 0;
char *cmdname;
(void) setlocale(LC_ALL, "");
(void) textdomain(TEXT_DOMAIN);
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)
return (1);
libzfs_print_on_error(g_zfs, B_TRUE);
zpool_set_history_str("zpool", argc, argv, history_str);
verify(zpool_stage_history(g_zfs, history_str) == 0);
/*
* 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.
*/
char buf[16384];
int fd = open(ZFS_DEV, O_RDWR);
(void) strcpy((void *)buf, argv[2]);
return (!!ioctl(fd, ZFS_IOC_POOL_FREEZE, buf));
} else {
(void) fprintf(stderr, gettext("unrecognized "
"command '%s'\n"), cmdname);
usage(B_FALSE);
ret = 1;
}
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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