ZFS Checksum errors

[Xin LI]

On Wed, Jun 20, 2012 at 1:55 PM,  <rondzierwa at comcast.net> wrote:
> Steve.
>
> well, it got done, and it found another anonymous file with errors . any idea how to get rid of these?

Normally you need to "zpool clear zfsPool", and rerun zpool scrub.  If
you see these numbers growing again, it's likely that there are some
other problems with your hardware.  The recommended configuration is
to use ZFS to manage disks, or at least split your RAID volumes into
smaller ones by the way, since otherwise the volume is seen as a
"single disk" to ZFS, making it impossible to repair data errors
unless you add additional redundancy (zfs set copies=2, etc).

>
> thanks,
> ron.
>
>
>
> phoenix# zpool status -v zfsPool
> pool: zfsPool
> state: ONLINE
> status: One or more devices has experienced an error resulting in data
> corruption. Applications may be affected.
> action: Restore the file in question if possible. Otherwise restore the
> entire pool from backup.
> see: http://www.sun.com/msg/ZFS-8000-8A
> scrub: scrub completed after 8h29m with 6276 errors on Wed Jun 20 16:18:01 2012
> config:
>
> NAME STATE READ WRITE CKSUM
> zfsPool ONLINE 0 0 6.17K
> da0 ONLINE 0 0 13.0K 1.34M repaired
>
> errors: Permanent errors have been detected in the following files:
>
> zfsPool/raid:<0x9e241>
> zfsPool/Build:<0x0>
> phoenix#
>
>
>
>
> ----- Original Message -----
> From: "Steven Hartland" <killing at multiplay.co.uk>
> To: rondzierwa at comcast.net, freebsd-fs at freebsd.org
> Sent: Wednesday, June 20, 2012 1:58:20 PM
> Subject: Re: ZFS Checksum errors
>
> ----- Original Message -----
> From: <rondzierwa at comcast.net>
> ..
>
>> zpool status indicates that a file has errors, but doesn't tell me its name:
>>
>> phoenix# zpool status -v zfsPool
>> pool: zfsPool
>> state: ONLINE
>> status: One or more devices has experienced an error resulting in data
>> corruption. Applications may be affected.
>> action: Restore the file in question if possible. Otherwise restore the
>> entire pool from backup.
>> see: http://www.sun.com/msg/ZFS-8000-8A
>> scrub: scrub in progress for 5h27m, 18.71% done, 23h42m to go
>
> Try waiting for the scrub to complete and see if its more helpful after that.
>
> Regards
> Steve
>
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-- 
Xin LI <delphij at delphij.net> https://www.delphij.net/
FreeBSD - The Power to Serve! Live free or die