Date: Tue, 2 Oct 2007 20:14:04 +0200 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Brooks Talley <brooks@illuminati.org> Cc: freebsd-current <freebsd-current@freebsd.org> Subject: Re: ZFS corrupting data, even just sitting idle Message-ID: <20071002181404.GA4717@garage.freebsd.pl> In-Reply-To: <7344605.82541191344652015.JavaMail.root@zmail.illuminati.org> References: <7344605.82541191344652015.JavaMail.root@zmail.illuminati.org>
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--SLDf9lqlvOQaIe6s Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Oct 02, 2007 at 10:04:12AM -0700, Brooks Talley wrote: > Hi, everyone. I'm running 7.0-current amd64, built from CVS on September= 12. I've got a 4.5TB ZFS array across 8 750GB drives in a RAIDZ1 + hotspa= re configuration. >=20 > It's corrupting data even just sitting at idle with no access at all. I = had loaded it up with about 4TB of data several weeks ago, then noticed tha= t a zpool status showed checksum errors about a week ago. I ran a scrub an= d it turned 122 errors affecting about 20 files. The errors were spread ac= ross the physical disks pretty evenly, so it didn't seem like one bad drive. >=20 > I left for vacation and unplugged the network from the machine to ensure = that there would be no access to the disk. There are no cron jobs or anyth= ing else running locally that so much as touch the zpool. >=20 > Upon returning, I ran a zpool scrub and it found an additional 116 checks= um errors in another 17 files, also evenly spread across the physical drive= s. >=20 > The system is running a Supermicro motherboard, Supermicro AOC-SAT-MV8 SA= TA card, and WD 750GB drives. 2GB memory, no real apps running, just stora= ge. >=20 > Anyone seen anything like this? It's a bit of a concern. Ok, and why do you blame ZFS for corrupting for data instead of be thankful for detecting corruptions? I'm quite sure it's not ZFS what is corrupting your data. --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --SLDf9lqlvOQaIe6s Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQFHAopsForvXbEpPzQRAkpRAKCj4Zge07ppd76qdOzvRjmYVUZS2ACdH5Un A+riFE0n19q5aj2rIwJGwbg= =Tj9j -----END PGP SIGNATURE----- --SLDf9lqlvOQaIe6s--
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