Date: Wed, 18 Apr 2007 12:51:18 -0700 From: Chuck Swiger <cswiger@mac.com> To: Doug Poland <doug@polands.org> Cc: questions@freebsd.org, Bill Moran <wmoran@potentialtech.com> Subject: Re: Exercising ATA disks in hopes of revealing errors Message-ID: <38DCF62F-9F0E-4DBB-9348-C782E5D182E0@mac.com> In-Reply-To: <20070418193749.GB52435@polands.org> References: <52060.69.129.174.18.1176828969.squirrel@email.polands.org> <20070417130653.a07b6c1c.wmoran@potentialtech.com> <20070418193749.GB52435@polands.org>
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On Apr 18, 2007, at 12:37 PM, Doug Poland wrote: > I just used the "Drive Fitness Test" for IBM ATA drives on a > particular > disk and it finished without detecting errors. However, I see > messages > like this: > > Apr 16 22:51:44 seth kernel: ad3: WARNING - WRITE_DMA UDMA ICRC > error (retrying request) LBA=1904935 > Apr 16 22:52:02 seth kernel: ad3: WARNING - WRITE_DMA UDMA ICRC > error (retrying request) LBA=8029031 > Apr 16 23:35:30 seth kernel: ad3: WARNING - WRITE_DMA UDMA ICRC > error (retrying request) LBA=2269287 > Apr 16 23:37:22 seth kernel: ad3: WARNING - WRITE_DMA UDMA ICRC > error (retrying request) LBA=3612007 > Apr 16 23:48:17 seth kernel: ad3: WARNING - WRITE_DMA UDMA ICRC > error (retrying request) LBA=1932123 > Apr 17 21:12:25 seth kernel: ad3: FAILURE - SMART > status=51<READY,DSC,ERROR> error=4<ABORTED> LBA=12734209 > Apr 17 21:12:25 seth kernel: ad3: FAILURE - SMART > status=51<READY,DSC,ERROR> error=4<ABORTED> LBA=12734214 > > in /var/log/messages. > > Do the kernel messages indicate a potential problem with this drive? They seem to suggest more of a cabling problem or communications problem between the drive and motherboard than a problem within the drive itself. It could also indicate a problem with the ATA driver against your particular motherboard/chipset-- but without a dmesg or some hardware details, we can't do better than guess. > Whom should I believe, FreeBSD or the disk diagnostics tool? Both. -- -Chuck
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