Add options to zfs redundant_metadata property

Currently, additional/extra copies are created for metadata in
addition to the redundancy provided by the pool(mirror/raidz/draid),
due to this 2 times more space is utilized per inode and this decreases
the total number of inodes that can be created in the filesystem. By
setting redundant_metadata to none, no additional copies of metadata
are created, hence can reduce the space consumed by the additional
metadata copies and increase the total number of inodes that can be
created in the filesystem.  Additionally, this can improve file create
performance due to the reduced amount of metadata which needs
to be written.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Dipak Ghosh <dipak.ghosh@hpe.com>
Signed-off-by: Akash B <akash-b@hpe.com>
Closes #13680
This commit is contained in:
Akash B 2022-10-20 05:37:51 +05:30 committed by GitHub
parent 2be0a124af
commit 5405be0365
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GPG Key ID: 4AEE18F83AFDEB23
9 changed files with 151 additions and 15 deletions

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@ -27,6 +27,7 @@
* Copyright (c) 2014 Spectra Logic Corporation, All rights reserved. * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
* Copyright 2013 Saso Kiselkov. All rights reserved. * Copyright 2013 Saso Kiselkov. All rights reserved.
* Copyright (c) 2017, Intel Corporation. * Copyright (c) 2017, Intel Corporation.
* Copyright (c) 2022 Hewlett Packard Enterprise Development LP.
*/ */
/* Portions Copyright 2010 Robert Milkowski */ /* Portions Copyright 2010 Robert Milkowski */
@ -142,6 +143,12 @@ typedef enum dmu_object_byteswap {
#define DMU_OT_IS_DDT(ot) \ #define DMU_OT_IS_DDT(ot) \
((ot) == DMU_OT_DDT_ZAP) ((ot) == DMU_OT_DDT_ZAP)
#define DMU_OT_IS_CRITICAL(ot) \
(DMU_OT_IS_METADATA(ot) && \
(ot) != DMU_OT_DNODE && \
(ot) != DMU_OT_DIRECTORY_CONTENTS && \
(ot) != DMU_OT_SA)
/* Note: ztest uses DMU_OT_UINT64_OTHER as a proxy for file blocks */ /* Note: ztest uses DMU_OT_UINT64_OTHER as a proxy for file blocks */
#define DMU_OT_IS_FILE(ot) \ #define DMU_OT_IS_FILE(ot) \
((ot) == DMU_OT_PLAIN_FILE_CONTENTS || (ot) == DMU_OT_UINT64_OTHER) ((ot) == DMU_OT_PLAIN_FILE_CONTENTS || (ot) == DMU_OT_UINT64_OTHER)

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@ -29,6 +29,7 @@
* Copyright (c) 2019 Datto Inc. * Copyright (c) 2019 Datto Inc.
* Portions Copyright 2010 Robert Milkowski * Portions Copyright 2010 Robert Milkowski
* Copyright (c) 2021, Colm Buckley <colm@tuatha.org> * Copyright (c) 2021, Colm Buckley <colm@tuatha.org>
* Copyright (c) 2022 Hewlett Packard Enterprise Development LP.
*/ */
#ifndef _SYS_FS_ZFS_H #ifndef _SYS_FS_ZFS_H
@ -501,7 +502,9 @@ typedef enum {
typedef enum { typedef enum {
ZFS_REDUNDANT_METADATA_ALL, ZFS_REDUNDANT_METADATA_ALL,
ZFS_REDUNDANT_METADATA_MOST ZFS_REDUNDANT_METADATA_MOST,
ZFS_REDUNDANT_METADATA_SOME,
ZFS_REDUNDANT_METADATA_NONE
} zfs_redundant_metadata_type_t; } zfs_redundant_metadata_type_t;
typedef enum { typedef enum {

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@ -36,8 +36,9 @@
.\" Copyright 2018 Nexenta Systems, Inc. .\" Copyright 2018 Nexenta Systems, Inc.
.\" Copyright 2019 Joyent, Inc. .\" Copyright 2019 Joyent, Inc.
.\" Copyright (c) 2019, Kjeld Schouten-Lebbing .\" Copyright (c) 2019, Kjeld Schouten-Lebbing
.\" Copyright (c) 2022 Hewlett Packard Enterprise Development LP.
.\" .\"
.Dd May 24, 2021 .Dd July 21, 2022
.Dt ZFSPROPS 7 .Dt ZFSPROPS 7
.Os .Os
. .
@ -1454,7 +1455,7 @@ affects only files created afterward; existing files are unaffected.
.Pp .Pp
This property can also be referred to by its shortened column name, This property can also be referred to by its shortened column name,
.Sy recsize . .Sy recsize .
.It Sy redundant_metadata Ns = Ns Sy all Ns | Ns Sy most .It Sy redundant_metadata Ns = Ns Sy all Ns | Ns Sy most Ns | Ns Sy some Ns | Ns Sy none
Controls what types of metadata are stored redundantly. Controls what types of metadata are stored redundantly.
ZFS stores an extra copy of metadata, so that if a single block is corrupted, ZFS stores an extra copy of metadata, so that if a single block is corrupted,
the amount of user data lost is limited. the amount of user data lost is limited.
@ -1486,7 +1487,7 @@ When set to
ZFS stores an extra copy of most types of metadata. ZFS stores an extra copy of most types of metadata.
This can improve performance of random writes, because less metadata must be This can improve performance of random writes, because less metadata must be
written. written.
In practice, at worst about 100 blocks In practice, at worst about 1000 blocks
.Po of .Po of
.Sy recordsize .Sy recordsize
bytes each bytes each
@ -1495,6 +1496,17 @@ of user data can be lost if a single on-disk block is corrupt.
The exact behavior of which metadata blocks are stored redundantly may change in The exact behavior of which metadata blocks are stored redundantly may change in
future releases. future releases.
.Pp .Pp
When set to
.Sy some ,
ZFS stores an extra copy of only critical metadata.
This can improve file create performance since less metadata needs to be written.
If a single on-disk block is corrupt, at worst a single user file can be lost.
.Pp
When set to
.Sy none ,
ZFS does not store any copies of metadata redundantly.
If a single on-disk block is corrupt, an entire dataset can be lost.
.Pp
The default value is The default value is
.Sy all . .Sy all .
.It Sy refquota Ns = Ns Ar size Ns | Ns Sy none .It Sy refquota Ns = Ns Ar size Ns | Ns Sy none

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@ -25,6 +25,7 @@
* Copyright 2016, Joyent, Inc. * Copyright 2016, Joyent, Inc.
* Copyright (c) 2019, Klara Inc. * Copyright (c) 2019, Klara Inc.
* Copyright (c) 2019, Allan Jude * Copyright (c) 2019, Allan Jude
* Copyright (c) 2022 Hewlett Packard Enterprise Development LP.
*/ */
/* Portions Copyright 2010 Robert Milkowski */ /* Portions Copyright 2010 Robert Milkowski */
@ -369,6 +370,8 @@ zfs_prop_init(void)
static const zprop_index_t redundant_metadata_table[] = { static const zprop_index_t redundant_metadata_table[] = {
{ "all", ZFS_REDUNDANT_METADATA_ALL }, { "all", ZFS_REDUNDANT_METADATA_ALL },
{ "most", ZFS_REDUNDANT_METADATA_MOST }, { "most", ZFS_REDUNDANT_METADATA_MOST },
{ "some", ZFS_REDUNDANT_METADATA_SOME },
{ "none", ZFS_REDUNDANT_METADATA_NONE },
{ NULL } { NULL }
}; };
@ -388,7 +391,7 @@ zfs_prop_init(void)
zprop_register_index(ZFS_PROP_REDUNDANT_METADATA, "redundant_metadata", zprop_register_index(ZFS_PROP_REDUNDANT_METADATA, "redundant_metadata",
ZFS_REDUNDANT_METADATA_ALL, ZFS_REDUNDANT_METADATA_ALL,
PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
"all | most", "REDUND_MD", "all | most | some | none", "REDUND_MD",
redundant_metadata_table, sfeatures); redundant_metadata_table, sfeatures);
zprop_register_index(ZFS_PROP_SYNC, "sync", ZFS_SYNC_STANDARD, zprop_register_index(ZFS_PROP_SYNC, "sync", ZFS_SYNC_STANDARD,
PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,

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@ -28,6 +28,7 @@
* Copyright (c) 2019 Datto Inc. * Copyright (c) 2019 Datto Inc.
* Copyright (c) 2019, Klara Inc. * Copyright (c) 2019, Klara Inc.
* Copyright (c) 2019, Allan Jude * Copyright (c) 2019, Allan Jude
* Copyright (c) 2022 Hewlett Packard Enterprise Development LP.
*/ */
#include <sys/dmu.h> #include <sys/dmu.h>
@ -1992,12 +1993,22 @@ dmu_write_policy(objset_t *os, dnode_t *dn, int level, int wp, zio_prop_t *zp)
ZCHECKSUM_FLAG_EMBEDDED)) ZCHECKSUM_FLAG_EMBEDDED))
checksum = ZIO_CHECKSUM_FLETCHER_4; checksum = ZIO_CHECKSUM_FLETCHER_4;
if (os->os_redundant_metadata == ZFS_REDUNDANT_METADATA_ALL || switch (os->os_redundant_metadata) {
(os->os_redundant_metadata == case ZFS_REDUNDANT_METADATA_ALL:
ZFS_REDUNDANT_METADATA_MOST &&
(level >= zfs_redundant_metadata_most_ditto_level ||
DMU_OT_IS_METADATA(type) || (wp & WP_SPILL))))
copies++; copies++;
break;
case ZFS_REDUNDANT_METADATA_MOST:
if (level >= zfs_redundant_metadata_most_ditto_level ||
DMU_OT_IS_METADATA(type) || (wp & WP_SPILL))
copies++;
break;
case ZFS_REDUNDANT_METADATA_SOME:
if (DMU_OT_IS_CRITICAL(type))
copies++;
break;
case ZFS_REDUNDANT_METADATA_NONE:
break;
}
} else if (wp & WP_NOFILL) { } else if (wp & WP_NOFILL) {
ASSERT(level == 0); ASSERT(level == 0);

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@ -32,6 +32,7 @@
* Copyright (c) 2018, loli10K <ezomori.nozomu@gmail.com>. All rights reserved. * Copyright (c) 2018, loli10K <ezomori.nozomu@gmail.com>. All rights reserved.
* Copyright (c) 2019, Klara Inc. * Copyright (c) 2019, Klara Inc.
* Copyright (c) 2019, Allan Jude * Copyright (c) 2019, Allan Jude
* Copyright (c) 2022 Hewlett Packard Enterprise Development LP.
*/ */
/* Portions Copyright 2010 Robert Milkowski */ /* Portions Copyright 2010 Robert Milkowski */
@ -287,7 +288,9 @@ redundant_metadata_changed_cb(void *arg, uint64_t newval)
* Inheritance and range checking should have been done by now. * Inheritance and range checking should have been done by now.
*/ */
ASSERT(newval == ZFS_REDUNDANT_METADATA_ALL || ASSERT(newval == ZFS_REDUNDANT_METADATA_ALL ||
newval == ZFS_REDUNDANT_METADATA_MOST); newval == ZFS_REDUNDANT_METADATA_MOST ||
newval == ZFS_REDUNDANT_METADATA_SOME ||
newval == ZFS_REDUNDANT_METADATA_NONE);
os->os_redundant_metadata = newval; os->os_redundant_metadata = newval;
} }

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@ -23,6 +23,7 @@
* Copyright (c) 2012, 2015 by Delphix. All rights reserved. * Copyright (c) 2012, 2015 by Delphix. All rights reserved.
* Copyright (c) 2013 Martin Matuska. All rights reserved. * Copyright (c) 2013 Martin Matuska. All rights reserved.
* Copyright 2019 Joyent, Inc. * Copyright 2019 Joyent, Inc.
* Copyright (c) 2022 Hewlett Packard Enterprise Development LP.
*/ */
#include <sys/zfs_context.h> #include <sys/zfs_context.h>
@ -41,6 +42,7 @@
#define ZPROP_INHERIT_SUFFIX "$inherit" #define ZPROP_INHERIT_SUFFIX "$inherit"
#define ZPROP_RECVD_SUFFIX "$recvd" #define ZPROP_RECVD_SUFFIX "$recvd"
#define ZPROP_IUV_SUFFIX "$iuv"
static int static int
dodefault(zfs_prop_t prop, int intsz, int numints, void *buf) dodefault(zfs_prop_t prop, int intsz, int numints, void *buf)
@ -69,6 +71,16 @@ dodefault(zfs_prop_t prop, int intsz, int numints, void *buf)
return (0); return (0);
} }
static int
dsl_prop_known_index(zfs_prop_t prop, uint64_t value)
{
const char *str = NULL;
if (zfs_prop_get_type(prop) == PROP_TYPE_INDEX)
return (!zfs_prop_index_to_string(prop, value, &str));
return (-1);
}
int int
dsl_prop_get_dd(dsl_dir_t *dd, const char *propname, dsl_prop_get_dd(dsl_dir_t *dd, const char *propname,
int intsz, int numints, void *buf, char *setpoint, boolean_t snapshot) int intsz, int numints, void *buf, char *setpoint, boolean_t snapshot)
@ -81,6 +93,7 @@ dsl_prop_get_dd(dsl_dir_t *dd, const char *propname,
boolean_t inheriting = B_FALSE; boolean_t inheriting = B_FALSE;
char *inheritstr; char *inheritstr;
char *recvdstr; char *recvdstr;
char *iuvstr;
ASSERT(dsl_pool_config_held(dd->dd_pool)); ASSERT(dsl_pool_config_held(dd->dd_pool));
@ -91,6 +104,7 @@ dsl_prop_get_dd(dsl_dir_t *dd, const char *propname,
inheritable = (prop == ZPROP_USERPROP || zfs_prop_inheritable(prop)); inheritable = (prop == ZPROP_USERPROP || zfs_prop_inheritable(prop));
inheritstr = kmem_asprintf("%s%s", propname, ZPROP_INHERIT_SUFFIX); inheritstr = kmem_asprintf("%s%s", propname, ZPROP_INHERIT_SUFFIX);
recvdstr = kmem_asprintf("%s%s", propname, ZPROP_RECVD_SUFFIX); recvdstr = kmem_asprintf("%s%s", propname, ZPROP_RECVD_SUFFIX);
iuvstr = kmem_asprintf("%s%s", propname, ZPROP_IUV_SUFFIX);
/* /*
* Note: dd may become NULL, therefore we shouldn't dereference it * Note: dd may become NULL, therefore we shouldn't dereference it
@ -105,6 +119,18 @@ dsl_prop_get_dd(dsl_dir_t *dd, const char *propname,
inheriting = B_TRUE; inheriting = B_TRUE;
} }
/* Check for a iuv value. */
err = zap_lookup(mos, dsl_dir_phys(dd)->dd_props_zapobj,
iuvstr, intsz, numints, buf);
if (dsl_prop_known_index(zfs_name_to_prop(propname),
*(uint64_t *)buf) != 1)
err = ENOENT;
if (err != ENOENT) {
if (setpoint != NULL && err == 0)
dsl_dir_name(dd, setpoint);
break;
}
/* Check for a local value. */ /* Check for a local value. */
err = zap_lookup(mos, dsl_dir_phys(dd)->dd_props_zapobj, err = zap_lookup(mos, dsl_dir_phys(dd)->dd_props_zapobj,
propname, intsz, numints, buf); propname, intsz, numints, buf);
@ -155,6 +181,7 @@ dsl_prop_get_dd(dsl_dir_t *dd, const char *propname,
kmem_strfree(inheritstr); kmem_strfree(inheritstr);
kmem_strfree(recvdstr); kmem_strfree(recvdstr);
kmem_strfree(iuvstr);
return (err); return (err);
} }
@ -647,6 +674,45 @@ dsl_prop_changed_notify(dsl_pool_t *dp, uint64_t ddobj,
dsl_dir_rele(dd, FTAG); dsl_dir_rele(dd, FTAG);
} }
/*
* For newer values in zfs index type properties, we add a new key
* propname$iuv (iuv = Ignore Unknown Values) to the properties zap object
* to store the new property value and store the default value in the
* existing prop key. So that the propname$iuv key is ignored by the older zfs
* versions and the default property value from the existing prop key is
* used.
*/
static void
dsl_prop_set_iuv(objset_t *mos, uint64_t zapobj, const char *propname,
int intsz, int numints, const void *value, dmu_tx_t *tx)
{
char *iuvstr = kmem_asprintf("%s%s", propname, ZPROP_IUV_SUFFIX);
boolean_t iuv = B_FALSE;
zfs_prop_t prop = zfs_name_to_prop(propname);
switch (prop) {
case ZFS_PROP_REDUNDANT_METADATA:
if (*(uint64_t *)value == ZFS_REDUNDANT_METADATA_SOME ||
*(uint64_t *)value == ZFS_REDUNDANT_METADATA_NONE)
iuv = B_TRUE;
break;
default:
break;
}
if (iuv) {
VERIFY0(zap_update(mos, zapobj, iuvstr, intsz, numints,
value, tx));
uint64_t val = zfs_prop_default_numeric(prop);
VERIFY0(zap_update(mos, zapobj, propname, intsz, numints,
&val, tx));
} else {
zap_remove(mos, zapobj, iuvstr, tx);
}
kmem_strfree(iuvstr);
}
void void
dsl_prop_set_sync_impl(dsl_dataset_t *ds, const char *propname, dsl_prop_set_sync_impl(dsl_dataset_t *ds, const char *propname,
zprop_source_t source, int intsz, int numints, const void *value, zprop_source_t source, int intsz, int numints, const void *value,
@ -659,6 +725,7 @@ dsl_prop_set_sync_impl(dsl_dataset_t *ds, const char *propname,
const char *valstr = NULL; const char *valstr = NULL;
char *inheritstr; char *inheritstr;
char *recvdstr; char *recvdstr;
char *iuvstr;
char *tbuf = NULL; char *tbuf = NULL;
int err; int err;
uint64_t version = spa_version(ds->ds_dir->dd_pool->dp_spa); uint64_t version = spa_version(ds->ds_dir->dd_pool->dp_spa);
@ -692,6 +759,7 @@ dsl_prop_set_sync_impl(dsl_dataset_t *ds, const char *propname,
inheritstr = kmem_asprintf("%s%s", propname, ZPROP_INHERIT_SUFFIX); inheritstr = kmem_asprintf("%s%s", propname, ZPROP_INHERIT_SUFFIX);
recvdstr = kmem_asprintf("%s%s", propname, ZPROP_RECVD_SUFFIX); recvdstr = kmem_asprintf("%s%s", propname, ZPROP_RECVD_SUFFIX);
iuvstr = kmem_asprintf("%s%s", propname, ZPROP_IUV_SUFFIX);
switch ((int)source) { switch ((int)source) {
case ZPROP_SRC_NONE: case ZPROP_SRC_NONE:
@ -709,11 +777,14 @@ dsl_prop_set_sync_impl(dsl_dataset_t *ds, const char *propname,
/* /*
* remove propname$inherit * remove propname$inherit
* set propname -> value * set propname -> value
* set propname$iuv -> new property value
*/ */
err = zap_remove(mos, zapobj, inheritstr, tx); err = zap_remove(mos, zapobj, inheritstr, tx);
ASSERT(err == 0 || err == ENOENT); ASSERT(err == 0 || err == ENOENT);
VERIFY0(zap_update(mos, zapobj, propname, VERIFY0(zap_update(mos, zapobj, propname,
intsz, numints, value, tx)); intsz, numints, value, tx));
(void) dsl_prop_set_iuv(mos, zapobj, propname, intsz,
numints, value, tx);
break; break;
case ZPROP_SRC_INHERITED: case ZPROP_SRC_INHERITED:
/* /*
@ -723,6 +794,8 @@ dsl_prop_set_sync_impl(dsl_dataset_t *ds, const char *propname,
*/ */
err = zap_remove(mos, zapobj, propname, tx); err = zap_remove(mos, zapobj, propname, tx);
ASSERT(err == 0 || err == ENOENT); ASSERT(err == 0 || err == ENOENT);
err = zap_remove(mos, zapobj, iuvstr, tx);
ASSERT(err == 0 || err == ENOENT);
if (version >= SPA_VERSION_RECVD_PROPS && if (version >= SPA_VERSION_RECVD_PROPS &&
dsl_prop_get_int_ds(ds, ZPROP_HAS_RECVD, &dummy) == 0) { dsl_prop_get_int_ds(ds, ZPROP_HAS_RECVD, &dummy) == 0) {
dummy = 0; dummy = 0;
@ -763,6 +836,7 @@ dsl_prop_set_sync_impl(dsl_dataset_t *ds, const char *propname,
kmem_strfree(inheritstr); kmem_strfree(inheritstr);
kmem_strfree(recvdstr); kmem_strfree(recvdstr);
kmem_strfree(iuvstr);
/* /*
* If we are left with an empty snap zap we can destroy it. * If we are left with an empty snap zap we can destroy it.
@ -1012,6 +1086,14 @@ dsl_prop_get_all_impl(objset_t *mos, uint64_t propobj,
propname = za.za_name; propname = za.za_name;
source = setpoint; source = setpoint;
/* Skip if iuv entries are preset. */
valstr = kmem_asprintf("%s%s", propname,
ZPROP_IUV_SUFFIX);
err = zap_contains(mos, propobj, valstr);
kmem_strfree(valstr);
if (err == 0)
continue;
} else if (strcmp(suffix, ZPROP_INHERIT_SUFFIX) == 0) { } else if (strcmp(suffix, ZPROP_INHERIT_SUFFIX) == 0) {
/* Skip explicitly inherited entries. */ /* Skip explicitly inherited entries. */
continue; continue;
@ -1044,6 +1126,16 @@ dsl_prop_get_all_impl(objset_t *mos, uint64_t propobj,
source = ((flags & DSL_PROP_GET_INHERITING) ? source = ((flags & DSL_PROP_GET_INHERITING) ?
setpoint : ZPROP_SOURCE_VAL_RECVD); setpoint : ZPROP_SOURCE_VAL_RECVD);
} else if (strcmp(suffix, ZPROP_IUV_SUFFIX) == 0) {
(void) strlcpy(buf, za.za_name,
MIN(sizeof (buf), suffix - za.za_name + 1));
propname = buf;
source = setpoint;
prop = zfs_name_to_prop(propname);
if (dsl_prop_known_index(prop,
za.za_first_integer) != 1)
continue;
} else { } else {
/* /*
* For backward compatibility, skip suffixes we don't * For backward compatibility, skip suffixes we don't

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@ -11,6 +11,7 @@
# #
# Copyright (c) 2012, 2016, Delphix. All rights reserved. # Copyright (c) 2012, 2016, Delphix. All rights reserved.
# Copyright (c) 2022 Hewlett Packard Enterprise Development LP.
# #
. $STF_SUITE/include/libtest.shlib . $STF_SUITE/include/libtest.shlib
@ -27,7 +28,7 @@ typeset -a canmount_prop_vals=('on' 'off' 'noauto')
typeset -a copies_prop_vals=('1' '2' '3') typeset -a copies_prop_vals=('1' '2' '3')
typeset -a logbias_prop_vals=('latency' 'throughput') typeset -a logbias_prop_vals=('latency' 'throughput')
typeset -a primarycache_prop_vals=('all' 'none' 'metadata') typeset -a primarycache_prop_vals=('all' 'none' 'metadata')
typeset -a redundant_metadata_prop_vals=('all' 'most') typeset -a redundant_metadata_prop_vals=('all' 'most' 'some' 'none')
typeset -a secondarycache_prop_vals=('all' 'none' 'metadata') typeset -a secondarycache_prop_vals=('all' 'none' 'metadata')
typeset -a snapdir_prop_vals=('hidden' 'visible') typeset -a snapdir_prop_vals=('hidden' 'visible')
typeset -a sync_prop_vals=('standard' 'always' 'disabled') typeset -a sync_prop_vals=('standard' 'always' 'disabled')

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@ -26,6 +26,7 @@
# #
# Copyright (c) 2013, 2016 by Delphix. All rights reserved. # Copyright (c) 2013, 2016 by Delphix. All rights reserved.
# Copyright (c) 2022 Hewlett Packard Enterprise Development LP.
# #
. $STF_SUITE/include/libtest.shlib . $STF_SUITE/include/libtest.shlib
@ -376,7 +377,8 @@ set -A prop "checksum" "" \
"sharenfs" "" \ "sharenfs" "" \
"recordsize" "recsize" \ "recordsize" "recsize" \
"snapdir" "" \ "snapdir" "" \
"readonly" "" "readonly" "" \
"redundant_metadata" ""
# #
# Note except for the mountpoint default value (which is handled in # Note except for the mountpoint default value (which is handled in
@ -387,12 +389,14 @@ set -A prop "checksum" "" \
set -A def_val "on" "on" "on" \ set -A def_val "on" "on" "on" \
"off" "" \ "off" "" \
"hidden" \ "hidden" \
"off" "off" \
"all"
set -A local_val "off" "off" "off" \ set -A local_val "off" "off" "off" \
"on" "" \ "on" "" \
"visible" \ "visible" \
"off" "off" \
"none"
# #
# Add system specific values # Add system specific values