ZFS + replacing failing hard-drive.

[Dag-Erling Smørgrav]

Ståle Kristoffersen <staalebk at ifi.uio.no> writes:
> I have been testing ZFS on my fileserver. The data I had in the zpool is
> not that important so I do not have redundancy. Unfortunately I got a bad
> hard-drive:
> Apr 13 22:02:44 fs root: ZFS: vdev I/O failure, zpool=stash path=/dev/ad14s1d offset=336216064000 size=131072 error=5
> Apr 13 22:02:56 fs kernel: ad14: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=3013311

I don't think you do.  This appears to be a bug in the ata driver
which ZFS is particularly good at triggering.

BTW, the message you show is harmless: see where it says "retrying"?
No need to worry until it says "FAILURE - WRITE_DMA timed out".

DES
-- 
Dag-Erling Smørgrav - des at des.no