[zfs-discuss] Data corrupted after machines were shut down.

[Marius van Vuuren]

A description of the problem

- Description

The j4200 and the x4150 connected to it were powered off
and then moved to another building with the utmost care. When powered on
again 'zpool status' revealed " corrupted data" on 3 of the disks.

Outputs:

zpool status
 pool: pool2
state: FAULTED
status: One or more devices could not be used because the label is missing
      or invalid.  There are insufficient replicas for the pool to continue
      functioning.
action: Destroy and re-create the pool from a backup source.
 see: http://www.sun.com/msg/ZFS-8000-5E
scrub: none requested
config:

      NAME         STATE     READ WRITE CKSUM
      pool2        FAULTED      0     0     0  corrupted data
        raidz1     UNAVAIL      0     0     0  insufficient replicas
          c1t33d0  ONLINE       0     0     0
          c1t34d0  FAULTED      0     0     0  corrupted data
          c1t35d0  ONLINE       0     0     0
          c1t36d0  FAULTED      0     0     0  corrupted data
          c1t37d0  FAULTED      0     0     0  corrupted data
        raidz1     ONLINE       0     0     0
          c1t26d0  ONLINE       0     0     0
          c1t27d0  ONLINE       0     0     0
          c1t28d0  ONLINE       0     0     0
          c1t29d0  ONLINE       0     0     0
          c1t30d0  ONLINE       0     0     0

root at x4150:~# zpool status
 pool: pool2
state: FAULTED
status: One or more devices could not be used because the label is missing
      or invalid.  There are insufficient replicas for the pool to continue
      functioning.
action: Destroy and re-create the pool from a backup source.
 see: http://www.sun.com/msg/ZFS-8000-5E
scrub: none requested
config:

      NAME         STATE     READ WRITE CKSUM
      pool2        FAULTED      0     0     0  corrupted data
        raidz1     UNAVAIL      0     0     0  insufficient replicas
          c1t33d0  ONLINE       0     0     0
          c1t34d0  FAULTED      0     0     0  corrupted data
          c1t35d0  ONLINE       0     0     0
          c1t36d0  FAULTED      0     0     0  corrupted data
          c1t37d0  FAULTED      0     0     0  corrupted data
        raidz1     ONLINE       0     0     0
          c1t26d0  ONLINE       0     0     0
          c1t27d0  ONLINE       0     0     0
          c1t28d0  ONLINE       0     0     0
          c1t29d0  ONLINE       0     0     0
          c1t30d0  ONLINE       0     0     0
zfs
root at x4150:~# zpool scrub pool2
cannot scrub 'pool2': pool is currently unavailable

All I want to know is if there is ANYTHING I can do to recover the data in
this pool?
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