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Date:      Fri, 19 Aug 2011 21:47:37 -0600 (MDT)
From:      Warren Block <wblock@wonkity.com>
To:        Chuck Swiger <cswiger@mac.com>
Cc:        freebsd-stable@freebsd.org, Dan Langille <dan@langille.org>
Subject:   Re: bad sector in gmirror HDD
Message-ID:  <alpine.BSF.2.00.1108192143160.82697@wonkity.com>
In-Reply-To: <65474D95-F56F-4DC7-8029-BA7166C4E46F@mac.com>
References:  <1B4FC0D8-60E6-49DA-BC52-688052C4DA51@langille.org> <65474D95-F56F-4DC7-8029-BA7166C4E46F@mac.com>

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On Fri, 19 Aug 2011, Chuck Swiger wrote:

> Reading the underlying failing drive with dd will help identify any 
> other questionable sectors.  However, your drive temps are too high-- 
> many vendors call out either 50C or 55C as the point where drive 
> reliability becomes significantly degraded.

The high temperature could be due to impending drive failure.  I've seen 
that exact situation with a failing WD notebook drive.  Lots of read 
failures, and it got very hot.  The same model replacement drive ran 
normally, just warm.


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