From owner-freebsd-questions@FreeBSD.ORG Mon Aug 31 06:52:38 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 04F5C1065670 for ; Mon, 31 Aug 2009 06:52:38 +0000 (UTC) (envelope-from stark@mapper.nl) Received: from smtp-out2.tiscali.nl (smtp-out2.tiscali.nl [195.241.79.177]) by mx1.freebsd.org (Postfix) with ESMTP id 932D58FC12 for ; Mon, 31 Aug 2009 06:52:37 +0000 (UTC) Received: from [82.170.17.27] (helo=mapper.nl) by smtp-out2.tiscali.nl with esmtp (Exim) (envelope-from ) id 1Mi0km-000240-GU for freebsd-questions@freebsd.org; Mon, 31 Aug 2009 08:52:36 +0200 Received: from bowser ([192.168.0.1] helo=[0.0.0.0]) by mapper.nl with esmtp (Exim 4.69 (FreeBSD)) (envelope-from ) id 1Mi0kS-0007wh-GA for freebsd-questions@freebsd.org; Mon, 31 Aug 2009 08:52:16 +0200 Message-ID: <4A9B731E.9050400@mapper.nl> Date: Mon, 31 Aug 2009 08:52:14 +0200 From: Mark Stapper User-Agent: Thunderbird 2.0.0.23 (Windows/20090812) MIME-Version: 1.0 To: freebsd-questions@freebsd.org X-Enigmail-Version: 0.96.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig2AE2856AC251CC16793C2018" Subject: ZFS and DMA read error X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Aug 2009 06:52:38 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig2AE2856AC251CC16793C2018 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Good day to you, I'm having a bit of trouble with one of the disks in my zfs raidz1 pool. It's giving me dma read error, and zpool is reporting READ failures. However, data integrity is OK :-) Unfortunately I was in the middle of rearranging my backup media, so I'm backup up everything as we speak. I will be testing the failing drive in another computer soon, however before I return it i'd like to know if this could be caused my something other than hardware failing. Below the output of "zpool status" and a snippet of /var/log/messages showing the DMA errors. Thanks for the input. Greetz, Mark pool: data state: ONLINE status: One or more devices has experienced an unrecoverable error. An attempt was made to correct the error. Applications are unaffect= ed. action: Determine if the device needs to be replaced, and clear the error= s using 'zpool clear' or replace the device with 'zpool replace'. see: http://www.sun.com/msg/ZFS-8000-9P scrub: none requested config: NAME STATE READ WRITE CKSUM data ONLINE 0 0 0 raidz1 ONLINE 0 0 0 ad4 ONLINE 0 0 0 ad6 ONLINE 21 0 0 ad8 ONLINE 0 0 0 ad10 ONLINE 0 0 0 errors: No known data errors Aug 31 03:04:35 yoshi kernel: ad6: FAILURE - READ_DMA48 status=3D51 error=3D40 LBA=3D932040832 Aug 31 03:04:35 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5 Aug 31 03:04:35 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata path=3D/dev/ad6 offset=3D477204925440 size=3D2560 error=3D5 Aug 31 03:04:53 yoshi kernel: ad6: FAILURE - READ_DMA48 status=3D51 error=3D40 LBA=3D932040832 Aug 31 03:04:53 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5 Aug 31 03:05:17 yoshi kernel: ad6: FAILURE - READ_DMA48 status=3D51 error=3D40 LBA=3D932040832 Aug 31 03:05:17 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5 Aug 31 03:05:17 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata path=3D/dev/ad6 offset=3D477204918272 size=3D512 error=3D5 Aug 31 06:12:01 yoshi login: ROOT LOGIN (root) ON ttyv2 Aug 31 06:35:34 yoshi kernel: ad6: FAILURE - READ_DMA48 status=3D51 error=3D40 LBA=3D932040832 Aug 31 06:35:34 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5 Aug 31 06:35:34 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata path=3D/dev/ad6 offset=3D477204925440 size=3D2560 error=3D5 Aug 31 06:36:33 yoshi kernel: ad6: FAILURE - READ_DMA48 status=3D51 error=3D40 LBA=3D932040832 Aug 31 06:36:34 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5 Aug 31 06:36:34 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata path=3D/dev/ad6 offset=3D477204923392 size=3D2048 error=3D5 Aug 31 06:36:38 yoshi kernel: ad6: FAILURE - READ_DMA48 status=3D51 error=3D40 LBA=3D932040832 Aug 31 06:36:38 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5 Aug 31 06:36:38 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata path=3D/dev/ad6 offset=3D477204918272 size=3D512 error=3D5 Aug 31 06:36:42 yoshi kernel: ad6: FAILURE - READ_DMA48 status=3D51 error=3D40 LBA=3D932040832 Aug 31 06:36:42 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5 Aug 31 06:36:42 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata path=3D/dev/ad6 offset=3D477204918272 size=3D512 error=3D5 Aug 31 06:37:52 yoshi kernel: ad6: FAILURE - READ_DMA48 status=3D51 error=3D40 LBA=3D932040832 Aug 31 06:37:52 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5 Aug 31 06:37:52 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata path=3D/dev/ad6 offset=3D477204918272 size=3D512 error=3D5 Aug 31 06:38:31 yoshi kernel: ad6: FAILURE - READ_DMA48 status=3D51 error=3D40 LBA=3D932040832 Aug 31 06:38:31 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5 Aug 31 06:38:31 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata path=3D/dev/ad6 offset=3D477204918272 size=3D512 error=3D5 Aug 31 06:38:45 yoshi kernel: ad6: FAILURE - READ_DMA48 status=3D51 error=3D40 LBA=3D932040832 Aug 31 06:38:45 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata path=3D/dev/ad6 offset=3D477204905984 size=3D65536 error=3D5 Aug 31 06:38:45 yoshi root: ZFS: vdev I/O failure, zpool=3Ddata path=3D/dev/ad6 offset=3D477204947968 size=3D512 error=3D5 --------------enig2AE2856AC251CC16793C2018 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkqbcyIACgkQN9xNqOOVnWCLHwCcCR8WcP3iLCUmLSd7V17+pskB e6IAnj5dkTp1Ao892q1pUVlLDPCkQNgK =PXc7 -----END PGP SIGNATURE----- --------------enig2AE2856AC251CC16793C2018--