On Mon Jul 27, 2009 at 02:19:42PM -0500, Jon Nelson wrote:
> I have a raid6 which is exposed via LVM (and parts of which are, in
> turn, exposed via NFS) and I'm having some really bad performance
> issues, primarily with large files. I'm not sure where the blame lies.
> When performance is bad "load" on the server is insanely high even
> though it's not doing anything except for the raid6 (it's otherwise
> quiescent) and NFS (to typically just one client).
>
Have you checked dmesg for disk errors? I've had similar slowdowns when
there's a bad block on the drive - it's sitting waiting for the retries
to timeout (or the bus to reset) and the read to fail.
Cheers,
Robin
--
___
( ' } | Robin Hill <robin@xxxxxxxxxxxxxxx> |
/ / ) | Little Jim says .... |
// !! | "He fallen in de water !!" |
Attachment:
pgp5qbaqY8orv.pgp
Description: PGP signature
