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Date:      Tue, 18 May 2010 10:19:55 -0500
From:      "Doug Poland" <doug@polands.org>
To:        "Matthew Seaman" <m.seaman@infracaninophile.co.uk>
Cc:        questions@freebsd.org
Subject:   Re: Interpretting 3Ware error messages
Message-ID:  <dcc93cce2bafbc2d4b5d3f19a4b291cc.squirrel@email.polands.org>
In-Reply-To: <4BF2AA7F.9090503@infracaninophile.co.uk>
References:  <f889b374b170eba47ff5f7d530a9c878.squirrel@email.polands.org> <4BF2AA7F.9090503@infracaninophile.co.uk>

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On Tue, May 18, 2010 09:55, Matthew Seaman wrote:
>
> On 18/05/2010 15:43:25, Doug Poland wrote:
>> Hello,
>>
>> I have a 7.2-R i386 system running a 3ware 9500S-4LP SATA 150
>> controller with 4 SATA drives.  I recently starting seeing the
>> following in my logs....
>>
>>
>> I suspect a disk problem, but cannot identify the individual disk
>> or the nature of the problem.  Can anyone shed some light on this?
>>
>>
>
> Look at the SMART data for the disk(s) -- my guess is that you're
> seeing sectors failing and being re-mapped by the drive firmware.  If
> this is happening to any significant extent the disk may well be
> reaching the end of its usable life: happily you would seem to have
> been alerted to that in time to do something about it without needing
> to run around in a blind panic.
>
> There's a background task you can set up on 3ware controllers that
> will attempt to access all sectors of a disk specifically to bring to
> light problems like this, which otherwise could go unnoticed for a
> long time and lead to silent data corruption.
>
Will do, thanks for the info.


-- 
Regards,
Doug




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