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Storage device expansion "silently" fails on degraded vdev 

When a vdev is degraded or faulted, we refuse to expand it when doing
online -e. However, we also don't actually cause the online command
to fail, even though the disk didn't expand. This is confusing and
misleading, and can result in violated expectations.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Mark Maybee <mark.maybee@delphix.com>
Signed-off-by: Paul Dagnelie <pcd@delphix.com>
Closes 14145
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Paul Dagnelie 2023-04-06 10:29:27 -07:00 committed by GitHub
parent 1038f87c4e
commit b66c2a0899
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1 changed files with 22 additions and 0 deletions
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22
cmd/zpool/zpool_main.c
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@ -6936,6 +6936,17 @@ zpool_do_online(int argc, char **argv)
return (1);
for (i = 1; i < argc; i++) {
vdev_state_t oldstate;
boolean_t avail_spare, l2cache;
nvlist_t *tgt = zpool_find_vdev(zhp, argv[i], &avail_spare,
&l2cache, NULL);
if (tgt == NULL) {
ret = 1;
continue;
}
uint_t vsc;
oldstate = ((vdev_stat_t *)fnvlist_lookup_uint64_array(tgt,
ZPOOL_CONFIG_VDEV_STATS, &vsc))->vs_state;
if (zpool_vdev_online(zhp, argv[i], flags, &newstate) == 0) {
if (newstate != VDEV_STATE_HEALTHY) {
(void) printf(gettext("warning: device '%s' "
@ -6949,6 +6960,17 @@ zpool_do_online(int argc, char **argv)
(void) printf(gettext("use 'zpool "
"replace' to replace devices "
"that are no longer present\n"));
if ((flags & ZFS_ONLINE_EXPAND)) {
(void) printf(gettext("%s: failed "
"to expand usable space on "
"unhealthy device '%s'\n"),
(oldstate >= VDEV_STATE_DEGRADED ?
"error" : "warning"), argv[i]);
if (oldstate >= VDEV_STATE_DEGRADED) {
ret = 1;
break;
}
}
}
} else {
ret = 1;