[zfs-discuss] ZFS non-zero checksum and permanent error with
Steven Samuel Cole
steven.samuel.cole at gmail.com
Thu Nov 5 03:04:13 UTC 2009
Bob Friesenhahn schrieb:
> On Thu, 5 Nov 2009, Steven Samuel Cole wrote:
>>> Definitely do
>>> zpool scrub zpool01
>>> to see if there is any other decay.
>> I have done that prior to getting the status, several times actually,
>> tried to indicate that in my OP. IIRC, all checksums are zero after
>> clearing; after scrubbing, the total checksum goes back up to 4. The
>> error is not cleared, though.
> Strange. I do recall that there was one OpenSolaris development release
> which did produce spurious checksum errors which looked weird like
> that. Hopefully you are not using that particular release.
I am using ZFS as it comes with the official FreeBSD 7.2 64bit, no
patches, no dev releases, all binary out of the box, nothing self-built.
IIRC, that's ZFS version 6.
> Your 'zpool status' output did not indicate that a scrub was done.
You are correct, my mistake. I reproduced the 3 zpool command lines in
my OP from memory. I have gone through many clear/scrub/status,
export/import, wash/rinse/repeat cycles now, the 'last scrub' info must
have gone lost in one of them. A scrub on that pool takes ~8 hours, so I
refrained from running it again just for demonstration purposes.
Hmmm. Just as I want to double-check, I get this:
[user at host ~]$ sudo zpool history
History for 'zpool01':
2008-05-31.22:16:22 zpool create -m /mnt/zpool01 zpool01 raidz1 ad12
ad14 ad16 ad18
2008-12-28.15:06:54 zpool import zpool01
2008-12-28.18:37:42 zpool export zpool01
2008-12-28.18:51:39 zpool import zpool01
2009-01-05.17:31:51 zpool export zpool01
2009-01-05.19:55:27 zpool import -d /dev/disk/by-id zpool01
2009-08-25.00:50:31 zpool clear zpool01
Assertion failed: ((null)), function nvlist_lookup_string(records[i],
ZPOOL_HIST_CMD, &cmdstr) == 0, file
Abort trap: 6 (core dumped)
Sigh. Maybe I should take that as another indication that something is
just not right and I should rebuild the pool, afterwise there'll always
be that nagging thought if my data is actually safe...
> Bob Friesenhahn
> bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
> GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
More information about the freebsd-questions