Apparently spurious ZFS CRC errors (was Re: ZFS data error
without reasons)
Mark Powell
M.S.Powell at salford.ac.uk
Thu Mar 26 02:02:19 PDT 2009
On Wed, 25 Mar 2009, Alexey Shuvaev wrote:
> I don't use zfs, just ufs2 + soft updates, but I see sometimes rather
> heavy data corruption (most often on / filesystem).
> No kernel messages, I can shut down the system successfully just
> to find the remnants of filesystems on the next boot.
> It doesn't happen often, I think compiling ports in a jail + some
> activity in the host increase the probability of a failure.
>
> The drive is:
> ATA channel 3:
> Master: ad6 <WDC WD5000AAKS-00C8A0/12.01C02> SATA revision 2.x
>
> hw.ata.wc=1 (default)
Have you tried turning WC off to see if it improves matters?
Cheers.
--
Mark Powell - UNIX System Administrator - The University of Salford
Information & Learning Services, Clifford Whitworth Building,
Salford University, Manchester, M5 4WT, UK.
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