Can you send the output of the attached D script when running 'zpool
status'?
- Eric
On Thu, Dec 04, 2008 at 02:58:54PM -0800, Brett wrote:
> As a result of a power spike during a thunder storm I lost a sata controller
> card. This card supported my zfs pool called newsan which is a 4 x samsung
> 1Tb sata2 disk raid-z. I replaced the card and the devices have the same
> controller/disk numbers, but now have the following issue.
>
> -bash-3.2$ zpool status
> pool: newsan
> state: FAULTED
> status: The pool metadata is corrupted and the pool cannot be opened.
> action: Destroy and re-create the pool from a backup source.
> see: http://www.sun.com/msg/ZFS-8000-72
> scrub: none requested
> config:
>
> NAME STATE READ WRITE CKSUM
> newsan FAULTED 1 0 0 corrupted data
> raidz1 ONLINE 6 0 0
> c10d1 ONLINE 17 0 0
> c10d0 ONLINE 17 0 0
> c9d1 ONLINE 24 0 0
> c9d0 ONLINE 24 0 0
>
> Something majorly weird is going on as when i run format i see this :-
> -bash-3.2$ pfexec format
> Searching for disks...done
>
>
> AVAILABLE DISK SELECTIONS:
> 0. c3d0 <DEFAULT cyl 19454 alt 2 hd 255 sec 63>
> /[EMAIL PROTECTED],0/pci8086,[EMAIL PROTECTED],4/[EMAIL
> PROTECTED]/[EMAIL PROTECTED]/[EMAIL PROTECTED],0
> 1. c3d1 <DEFAULT cyl 19454 alt 2 hd 255 sec 63>
> /[EMAIL PROTECTED],0/pci8086,[EMAIL PROTECTED],4/[EMAIL
> PROTECTED]/[EMAIL PROTECTED]/[EMAIL PROTECTED],0
> 2. c9d0 <SAMSUNG-S13PJ1BQ60312-0001-31.50MB>
> /[EMAIL PROTECTED],0/pci8086,[EMAIL PROTECTED]/[EMAIL
> PROTECTED]/[EMAIL PROTECTED]/[EMAIL PROTECTED],0
> 3. c9d1 <SAMSUNG-S13PJ1BQ60311-0001-31.50MB>
> /[EMAIL PROTECTED],0/pci8086,[EMAIL PROTECTED]/[EMAIL
> PROTECTED]/[EMAIL PROTECTED]/[EMAIL PROTECTED],0
> 4. c10d0 <SAMSUNG-S13PJ1BQ60311-0001-31.50MB>
> /[EMAIL PROTECTED],0/pci8086,[EMAIL PROTECTED]/[EMAIL
> PROTECTED]/[EMAIL PROTECTED]/[EMAIL PROTECTED],0
> 5. c10d1 <SAMSUNG-S13PJ1BQ60312-0001-31.50MB>
> /[EMAIL PROTECTED],0/pci8086,[EMAIL PROTECTED]/[EMAIL
> PROTECTED]/[EMAIL PROTECTED]/[EMAIL PROTECTED],0
>
> ??? 31.50 MB ??? they all used to show as 1Tb i believe (or 931Mb or whatever)
>
> Specify disk (enter its number): 2
> selecting c9d0
> NO Alt slice
> No defect list found
> [disk formatted, no defect list found]
> /dev/dsk/c9d0s0 is part of active ZFS pool newsan. Please see zpool(1M).
> format> p
> partition> p
> Current partition table (original):
> Total disk sectors available: 1953503710 + 16384 (reserved sectors)
>
> Part Tag Flag First Sector Size Last Sector
> 0 usr wm 256 931.50GB 1953503710
> 1 unassigned wm 0 0 0
> 2 unassigned wm 0 0 0
> 3 unassigned wm 0 0 0
> 4 unassigned wm 0 0 0
> 5 unassigned wm 0 0 0
> 6 unassigned wm 0 0 0
> 8 reserved wm 1953503711 8.00MB 1953520094
>
> So the partition table is looking correct. I dont believe all 4 disks died
> concurrently.
>
> Any thoughts on how to recover? I dont particularly want to restore the
> couple of terabytes of data if i dont have to.
>
> analyze> read
> Ready to analyze (won't harm SunOS). This takes a long time,
> but is interruptable with CTRL-C. Continue? y
> Current Defect List must be initialized to do automatic repair.
>
> Oh and whats this defect list thing? I havnt seen that before
>
> defect> print
> No working list defined.
> defect> create
> Controller does not support creating manufacturer's defect list.
> defect> extract
> Ready to extract working list. This cannot be interrupted
> and may take a long while. Continue? y
> NO Alt slice
> NO Alt slice
> Extracting defect list...No defect list found
> Extraction failed.
> defect> commit
> Ready to update Current Defect List, continue? y
> Current Defect List updated, total of 0 defects.
> Disk must be reformatted for changes to take effect.
> analyze> read
> Ready to analyze (won't harm SunOS). This takes a long time,
> but is interruptable with CTRL-C. Continue? y
>
> pass 0
> 64386
>
> pass 1
> 64386
>
> Total of 0 defective blocks repaired.
>
> So the read test seemed to work fine.
>
> Any suggestions on how to proceed? Thoughts on why the disks are showing
> weirdly in format? Any way to recover/rebuild the zpool metadata?
>
> Any help would be appreciated
>
> Regards Rep
> --
> This message posted from opensolaris.org
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--
Eric Schrock, Fishworks http://blogs.sun.com/eschrock
#!/sbin/dtrace -s
#pragma D option quiet
BEGIN
{
printf("run 'zpool import' to generate trace\n\n");
}
vdev_raidz_open:entry
{
printf("%d BEGIN RAIDZ OPEN\n", timestamp);
printf("%d config asize = %d\n", timestamp,
args[0]->vdev_asize);
printf("%d config ashift = %d\n", timestamp,
args[0]->vdev_top->vdev_ashift);
self->child = 1;
self->asize = args[1];
self->ashift = args[2];
}
vdev_disk_open:entry
/self->child/
{
self->disk_asize = args[1];
self->disk_ashift = args[2];
}
vdev_disk_open:return
/self->child/
{
printf("%d child[%d]: asize = %d, ashift = %d\n", timestamp,
self->child - 1, *self->disk_asize, *self->disk_ashift);
self->disk_asize = 0;
self->disk_ashift = 0;
self->child++;
}
vdev_raidz_open:return
{
printf("%d asize = %d\n", timestamp, *self->asize);
printf("%d ashift = %d\n", timestamp, *self->ashift);
printf("%d END RAIDZ OPEN\n", timestamp);
self->child = 0;
self->asize = 0;
self->ashift = 0;
}
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