c/mirror_zfs
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_zfs.git synced 2026-05-22 18:40:43 +03:00
Code Issues Packages Projects Releases Wiki Activity

Illumos #2671: zpool import should not fail if vdev ashift has increased

Browse Source 
Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: Eric Schrock <eric.schrock@delphix.com>
Reviewed by: Richard Elling <richard.elling@richardelling.com>
Reviewed by: Gordon Ross <gwr@nexenta.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Approved by: Richard Lowe <richlowe@richlowe.net>

Refererces to Illumos issue:
      https://www.illumos.org/issues/2671

This patch has been slightly modified from the upstream Illumos
version.  In the upstream implementation a warning message is
logged to the console.  To prevent pointless console noise this
notification is now posted as a "ereport.fs.zfs.vdev.bad_ashift"
event.

The event indicates a non-optimial (but entirely safe) ashift
value was used to create the pool.  Depending on your workload
this may impact pool performance.  Unfortunately, the only way
to correct the issue is to recreate the pool with a new ashift.

NOTE: The unrelated fix to the comment in zpool_main.c appears
in the upstream commit and was preserved for consistnecy.

Ported-by: Cyril Plisko <cyril.plisko@mountall.com>
Reworked-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #955
This commit is contained in:
George Wilson
2012-05-03 05:49:19 -07:00
committed by Brian Behlendorf
parent 3997bc7435
commit 32a9872bba
4 changed files with 15 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/zfs/vdev.c
+8 -5
View File
@@ -1271,13 +1271,16 @@ vdev_open(vdev_t *vd)
vd->vdev_ashift = MAX(ashift, vd->vdev_ashift);
} else {
/*
* Make sure the alignment requirement hasn't increased.
* Detect if the alignment requirement has increased.
* We don't want to make the pool unavailable, just
* post an event instead.
*/
if (ashift > vd->vdev_top->vdev_ashift) {
vdev_set_state(vd, B_TRUE, VDEV_STATE_CANT_OPEN,
VDEV_AUX_BAD_LABEL);
return (EINVAL);
if (ashift > vd->vdev_top->vdev_ashift &&
vd->vdev_ops->vdev_op_leaf) {
zfs_ereport_post(FM_EREPORT_ZFS_DEVICE_BAD_ASHIFT,
spa, vd, NULL, 0, 0);
}
vd->vdev_max_asize = max_asize;
}
module/zfs/zfs_fm.c
+4
View File
@@ -267,6 +267,10 @@ zfs_ereport_start(nvlist_t **ereport_out, nvlist_t **detector_out,
fm_payload_set(ereport,
FM_EREPORT_PAYLOAD_ZFS_VDEV_FRU,
DATA_TYPE_STRING, vd->vdev_fru, NULL);
if (vd->vdev_ashift)
fm_payload_set(ereport,
FM_EREPORT_PAYLOAD_ZFS_VDEV_ASHIFT,
DATA_TYPE_UINT64, vd->vdev_ashift, NULL);
if (pvd != NULL) {
fm_payload_set(ereport,