RAID-Z2 が壊れた

% zpool status pool01
  pool: pool01
 state: DEGRADED
status: One or more devices are faulted in response to persistent errors.
        Sufficient replicas exist for the pool to continue functioning in a
        degraded state.
action: Replace the faulted device, or use 'zpool clear' to mark the device
        repaired.
  scan: none requested
config:

        NAME        STATE     READ WRITE CKSUM
        pool01      DEGRADED     0     0     0
          raidz2-0  DEGRADED     0     0     0
            c3t2d0  FAULTED      0     0     0  too many errors
            c3t3d0  ONLINE       0     0     0
            c3t4d0  ONLINE       0     0     0
            c3t5d0  ONLINE       0     0     0

errors: No known data errors

ディスク入れ替えて

% pfexec zpool clear pool01 c3t2d0

% zpool status pool01
  pool: pool01
 state: ONLINE
status: One or more devices is currently being resilvered.  The pool will
        continue to function, possibly in a degraded state.
action: Wait for the resilver to complete.
  scan: resilver in progress since Mon Oct  8 17:39:22 2012
    10.1M scanned out of 1.55T at 2.01M/s, 224h28m to go
    2.32M resilvered, 0.00% done
config:

        NAME        STATE     READ WRITE CKSUM
        pool01      ONLINE       0     0     0
          raidz2-0  ONLINE       0     0     0
            c3t2d0  ONLINE       0     0     0  (resilvering)
            c3t3d0  ONLINE       0     0     0
            c3t4d0  ONLINE       0     0     0
            c3t5d0  ONLINE       0     0     0

errors: No known data errors