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Date: Mon, 12 Nov 2007 12:09:22 -0500
From: Mark Lord <lkml@rtr.ca>
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To: "Maciej W. Rozycki" <macro@linux-mips.org>
Cc: Alberto Gonzalez <info@gnebu.es>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Laptop's HDD
References: <200711040002.25784.info@gnebu.es> <Pine.LNX.4.64N.0711091416570.914@blysk.ds.pg.gda.pl>
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Maciej W. Rozycki wrote:
> On Sun, 4 Nov 2007, Alberto Gonzalez wrote:
> 
>> The problem comes from a very high rate of load/unload cycles of the heads 
>> that reaches the 300.000-600.000 limit in 2-3 years (with smartmontools it 
>> can checked it with "smartctl -A /dev/sda")  . There are reports of HDD dying 
>> even earlier for this problem [2]
> 
>  I use:
> 
> # hdparm -B 255 /dev/hda
> 
> to get rid of the problem with an ATA disk where I do not care that much 
> about power consumption.  I do not know what the equivalent for a SATA 
> disk would be, but chances are it will be easier to track it down with the 
> reference above.
..

The exact same command works with SATA drives.

-ml