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 > error) > 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 p...@freebsd.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am!
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