New ZFSv28 patchset for 8-STABLE
Pawel Jakub Dawidek
pjd at FreeBSD.org
Mon Jan 10 09:09:30 UTC 2011
On Sun, Jan 09, 2011 at 12:49:27PM +0100, Attila Nagy wrote:
> No, it's not related. One of the disks in the RAIDZ2 pool went bad:
> (da4:arcmsr0:0:4:0): READ(6). CDB: 8 0 2 10 10 0
> (da4:arcmsr0:0:4:0): CAM status: SCSI Status Error
> (da4:arcmsr0:0:4:0): SCSI status: Check Condition
> (da4:arcmsr0:0:4:0): SCSI sense: MEDIUM ERROR asc:11,0 (Unrecovered read
> and it seems it froze the whole zpool. Removing the disk by hand solved
> the problem.
> I've seen this previously on other machines with ciss.
> I wonder why ZFS didn't throw it out of the pool.
Such hangs happen when I/O never returns. ZFS doesn't timeout I/O
requests on its own, this is driver's responsibility. It is still
strange that the driver didn't pass I/O error up to ZFS or it might as
well be ZFS bug, but I don't think so.
Pawel Jakub Dawidek http://www.wheelsystems.com
pjd at FreeBSD.org http://www.FreeBSD.org
FreeBSD committer Am I Evil? Yes, I Am!
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Size: 196 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-stable/attachments/20110110/24bf0274/attachment.pgp
More information about the freebsd-stable