On 10/4/2010 7:19 AM, Alexander Leidinger wrote:
Quoting Dan Langille <d...@langille.org> (from Sun, 03 Oct 2010 08:08:19
-0400):
Overnight, the following appeared in /var/log/messages:
Oct 2 21:56:46 kraken root: ZFS: checksum mismatch, zpool=storage
path=/dev/gpt/disk06-live offset=123103157760 size=1024
Oct 2 21:56:47 kraken root: ZFS: checksum mismatch, zpool=storage
path=/dev/gpt/disk06-live offset=123103159808 size=1024
[...]
Given the outage from yesterday when ada0 was offline for several
hours, I'm guessing that checksum mismatches on that drive are
expected. Yes, /dev/gpt/disk06-live == ada0.
If you have the possibility to run a scrub of the pool, there should be
no additional checksum errors accouring *after* the scrub is *finished*.
If checksum errors still appear on this disk after the scrub is
finished, you should have a look at the hardware (cable/disk) and take
appropriate replacement actions.
For the record, -just finished a scrub.
$ zpool status
pool: storage
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 13h48m with 0 errors on Mon Oct 4
16:54:15 2010
config:
NAME STATE READ WRITE CKSUM
storage ONLINE 0 0 0
raidz2 ONLINE 0 0 0
gpt/disk01-live ONLINE 0 0 0
gpt/disk02-live ONLINE 0 0 0
gpt/disk03-live ONLINE 0 0 0
gpt/disk04-live ONLINE 0 0 0
gpt/disk05-live ONLINE 0 0 0
gpt/disk06-live ONLINE 0 0 141K 3.47G repaired
gpt/disk07-live ONLINE 0 0 0
errors: No known data errors
--
Dan Langille - http://langille.org/
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