bad sector in gmirror HDD

Chuck Swiger cswiger at mac.com
Fri Aug 19 21:52:02 UTC 2011


On Aug 19, 2011, at 1:50 PM, Dan Langille wrote:
> Searching on that error message, I was led to believe that identifying the bad sector and
> running dd to read it would cause the HDD to reallocate that bad block.
> 
>  http://smartmontools.sourceforge.net/badblockhowto.html
> 
> However, since ad2 is one half of a gmirror, I don't think this is the best approach.
> 
> Comments?

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.

Regards,
-- 
-Chuck



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