Date: Fri, 17 Oct 2008 11:49:54 -0700 From: Xin LI <delphij@delphij.net> To: JoaoBR <joao@matik.com.br> Cc: freebsd-stable@freebsd.org Subject: Re: constant zfs data corruption Message-ID: <48F8DE52.9060608@delphij.net> In-Reply-To: <200810171530.45570.joao@matik.com.br> References: <200810171530.45570.joao@matik.com.br>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 JoaoBR wrote: > Hi > > constantly I find data corruption on ZFS volums, ever from rrdtool, this > corrupt data happens on SATA disks, never seem on SCSI > > scrub is not able to repair, when comes to touch this files machines reboots, > deleting and restorin also is not possíble, seems I need to delete the files, > umount, scrub and mount again to clear it > > # zpool status -v os > pool: os > 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: none requested > config: > > NAME STATE READ WRITE CKSUM > os ONLINE 0 0 0 > ad4s1d ONLINE 0 0 0 > > errors: Permanent errors have been detected in the following files: > > /usr/local/www/data-dist/monitor/wip_diskio.rrd > /usr/local/www/data-dist/monitor/200.152.90.12mon.rrd > > some idea? For ZFS: I think you need to remove these file. ZFS scrub does not recover file if you don't have redundant, e.g. copies=2 or raid-z, etc. For the data corruption itself: I think this is highly critical issue if you are sure that the hardware is good. What controller and disk are you using? Cheers, - -- Xin LI <delphij@delphij.net> http://www.delphij.net/ FreeBSD - The Power to Serve! -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iEYEARECAAYFAkj43lEACgkQi+vbBBjt66BNlwCgpQ366XxVb6Tj5OYPDxJ7IA58 NZAAn194V1ypUWWsOfPhCxUyCSVSSUf2 =R7QE -----END PGP SIGNATURE-----
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