Date: Tue, 7 Apr 2009 14:38:21 +0100 (BST) From: "Mark Powell" <M.S.Powell@salford.ac.uk> To: ticso@cicely.de Cc: dgerow@afflictions.org, Daniel Eriksson <daniel@toomuchdata.com>, FreeBSD Current <freebsd-current@freebsd.org>, Mark Powell <M.S.Powell@salford.ac.uk>, kevin <kevinxlinuz@163.com>, Alexander Leidinger <Alexander@Leidinger.net> Subject: Re: Apparently spurious ZFS CRC errors (was Re: ZFS data error without reasons) Message-ID: <20090407143442.S31650@rust.salford.ac.uk> In-Reply-To: <20090407142423.L31650@rust.salford.ac.uk> References: <49BE4EC1.90207@163.com> <20090320102824.W75873@rust.salford.ac.uk> <20090320152737.D641@rust.salford.ac.uk> <20090325105613.55624rkkgf2xkr6s@webmail.leidinger.net> <20090325103721.G67233@rust.salford.ac.uk> <20090325135528.21416hzpozpjst8g@webmail.leidinger.net> <20090325125930.U73916@rust.salford.ac.uk> <20090325152128.2389990h7v6a02co@webmail.leidinger.net> <20090325152940.GB16409@cicely7.cicely.de> <20090325180054.L87213@rust.salford.ac.uk> <20090325183831.GD16409@cicely7.cicely.de> <20090326084726.N87213@rust.salford.ac.uk> <20090407142423.L31650@rust.salford.ac.uk>
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On Tue, 7 Apr 2009, Mark Powell wrote:
> Curiously CRC errors on both pools appeared at the same time. I've been
> running zpool status from cron every minute and all these new CRC errors,
> occured within two consecutive minutes:
Actually that was the status of a current scrub to see if the errors would
go away. A zpool status from the time it occured:
-----
Tue Apr 7 10:56:01 BST 2009
pool: pool
state: ONLINE
status: One or more devices has experienced an unrecoverable error. An
attempt was made to correct the error. Applications are
unaffected.
action: Determine if the device needs to be replaced, and clear the errors
using 'zpool clear' or replace the device with 'zpool replace'.
see: http://www.sun.com/msg/ZFS-8000-9P
scrub: scrub completed after 4h10m with 0 errors on Tue Apr 7 06:10:52
2009
config:
NAME STATE READ WRITE CKSUM
pool ONLINE 0 0 0
raidz1 ONLINE 0 0 0
stripe/str0 ONLINE 0 0 0
ad8 ONLINE 0 0 0
ad10 ONLINE 0 0 0
ad12 ONLINE 0 0 0
ad14 ONLINE 0 0 1
errors: No known data errors
pool: pool2
state: ONLINE
status: One or more devices has experienced an unrecoverable error. An
attempt was made to correct the error. Applications are
unaffected.
action: Determine if the device needs to be replaced, and clear the errors
using 'zpool clear' or replace the device with 'zpool replace'.
see: http://www.sun.com/msg/ZFS-8000-9P
scrub: scrub completed after 5h22m with 0 errors on Tue Apr 7 07:22:26
2009
config:
NAME STATE READ WRITE CKSUM
pool2 ONLINE 0 0 0
raidz2 ONLINE 0 0 0
ad18 ONLINE 0 0 0
ad20 ONLINE 0 0 4
ad22 ONLINE 0 0 2
ad24 ONLINE 0 0 0
ad26 ONLINE 0 0 0
ad28 ONLINE 0 0 6
errors: No known data errors
-----
Cheers.
--
Mark Powell - UNIX System Administrator - The University of Salford
Information & Learning Services, Clifford Whitworth Building,
Salford University, Manchester, M5 4WT, UK.
Tel: +44 161 295 6843 Fax: +44 161 295 5888 www.pgp.com for PGP key
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