linux-kernel - Re: SATA exceptions

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Date:	Thu, 12 Jul 2007 19:52:55 +0000
From:	Pavel Machek <pavel@....cz>
To:	Tejun Heo <htejun@...il.com>
Cc:	caglar@...dus.org.tr, Robert Hancock <hancockr@...w.ca>,
	LKML <linux-kernel@...r.kernel.org>,
	Jeff Garzik <jgarzik@...ox.com>
Subject: Re: SATA exceptions

Hi!

> >> Your SMART log shows 309 reallocated sectors. That seems somewhat high..
> > 
> > Ah sorry to misinterpret the content:), its a quiet new piece of hardware (at 
> > most ~1.5 month old) and  "Reallocated_Event_Count" constantly increases 
> > (currently its increased to 313) and although i'm not 100 percent sure these 
> > errors only occured with kernels > 2.6.18 (or 2.6.18 didn't report these 
> > cause according to kern.log these only visible with 2.6.22+) 
> 
> OS and driver can't really do much about the reallocation event.  Some
> number of reallocations is okay but if you it going up constantly, you
> probably have a dying disk.

Hmm... cut the power while writing is doable from OS and might force
reallocations?

You might want to check if number of reallocated sectors increases
with shutdowns/reboots.
							Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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