From owner-freebsd-current@FreeBSD.ORG Tue Oct 2 18:14:20 2007 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AD32D16A41A for ; Tue, 2 Oct 2007 18:14:20 +0000 (UTC) (envelope-from pjd@garage.freebsd.pl) Received: from mail.garage.freebsd.pl (arm132.internetdsl.tpnet.pl [83.17.198.132]) by mx1.freebsd.org (Postfix) with ESMTP id 3986513C469 for ; Tue, 2 Oct 2007 18:14:19 +0000 (UTC) (envelope-from pjd@garage.freebsd.pl) Received: by mail.garage.freebsd.pl (Postfix, from userid 65534) id 8435F45F56; Tue, 2 Oct 2007 20:14:18 +0200 (CEST) Received: from localhost (154.81.datacomsa.pl [195.34.81.154]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.garage.freebsd.pl (Postfix) with ESMTP id A1F0445684; Tue, 2 Oct 2007 20:14:11 +0200 (CEST) Date: Tue, 2 Oct 2007 20:14:04 +0200 From: Pawel Jakub Dawidek To: Brooks Talley Message-ID: <20071002181404.GA4717@garage.freebsd.pl> References: <7344605.82541191344652015.JavaMail.root@zmail.illuminati.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="SLDf9lqlvOQaIe6s" Content-Disposition: inline In-Reply-To: <7344605.82541191344652015.JavaMail.root@zmail.illuminati.org> User-Agent: Mutt/1.4.2.3i X-PGP-Key-URL: http://people.freebsd.org/~pjd/pjd.asc X-OS: FreeBSD 7.0-CURRENT i386 X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on mail.garage.freebsd.pl X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=BAYES_00 autolearn=ham version=3.0.4 Cc: freebsd-current Subject: Re: ZFS corrupting data, even just sitting idle X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 02 Oct 2007 18:14:20 -0000 --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--