ZFS (zpool) doesn't detect failed drive

[Harald Schmalzbauer]

Hello,

one drive of my mirror failed today, but 'zpool staus' shows it "online".



Here's the dmesg of the failing (and correctly detached) device:
ad1: TIMEOUT - FLUSHCACHE48 retrying (1 retry left)
ata3: port is not ready (timeout 10000ms) tfd = 00000080
ata3: hardware reset timeout
ad1: FAILURE - device detached

But:
zpool status
  pool: URUBAmirrorP1
 state: ONLINE
status: One or more devices are faulted in response to IO failures.

   see: http://www.sun.com/msg/ZFS-8000-JQ
 scrub: none requested
config:

        NAME        STATE     READ WRITE CKSUM
        URUBAmirrorP1  ONLINE       0    7K     0
          ad1       ONLINE       3 14,9K     0
          ad2       ONLINE       0     0     0



Reboot doesn't work, somebody had to reset the machine.


Thanks,

-Harry

Every process using a ZFS mount hangs. Also 'zpool offline /dev/ad1' hangs infinitely. action: Make sure the affected devices are connected, then run 'zpool clear'. How should such a error event be handled??? Isn't a mirror useless if there's no way to continue with one remaining good drive? If the OS was on the same pool the complete machine is unaccessable with a failing drive..?!?

signature.asc
Description: OpenPGP digital signature