Skip site navigation (1)Skip section navigation (2)
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>

next in thread | previous in thread | raw e-mail | index | archive | help
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




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?38DCF62F-9F0E-4DBB-9348-C782E5D182E0>