Date: Sun, 22 Apr 2007 23:20:19 +0200 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Barry Pederson <bp@barryp.org> Cc: freebsd-fs@FreeBSD.org Subject: Re: ZFS raidz device replacement problem Message-ID: <20070422212019.GJ52622@garage.freebsd.pl> In-Reply-To: <46224706.4010704@barryp.org> References: <46205338.3090803@barryp.org> <20070415111955.GB16971@garage.freebsd.pl> <46224706.4010704@barryp.org>
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[-- Attachment #1 --] On Sun, Apr 15, 2007 at 10:38:46AM -0500, Barry Pederson wrote: > But the thing that got me going on this was that if you *don't* do the scrub after the replace but instead do some other destructive things to one of the non-replaced > devices, like: > > dd if=/dev/random bs=1m count=64 oseek=1 conv=notrunc of=/tmp/foo1 > > and *then* do a scrub and then "zpool status -v mypool", you get this really alarming message mentioning data corruption. > > --------------------- > zpool status -v mypool > pool: mypool > 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 with 184 errors on Sun Apr 15 09:55:43 2007 > config: > > NAME STATE READ WRITE CKSUM > mypool ONLINE 0 0 761 > raidz1 ONLINE 0 0 761 > md0 ONLINE 0 0 0 > md1 ONLINE 0 0 521 > md3 ONLINE 0 0 25 > > errors: Permanent errors have been detected in the following files: > > mypool:<0x100> > mypool:<0x104> > mypool:<0x105> > . > . > --------------------- > > I suppose you have to actually have some files in /mypool for this to show up. > > (are there supposed to be real filenames in the message instead of things like "<0x100>" ?) I just committed a fix for 'zpool status -v'. It should now show actually file names if corruption is related to file's data. -- Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQFGK9GTForvXbEpPzQRAqbtAJwPywSt9x2fQ4YzCgNoND85ROXRUwCdFtT7 CkdXyprC8PA+aQO/oqE9LRk= =ZxHn -----END PGP SIGNATURE-----help
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