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SubjectRe: Laptop's HDD
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.

Although other power management features exist for SATA, for most hdparm
stuff PATA and SATA are pretty much the same. Same command set, simply
a new bus over which to transmit the commands. A great deal of early
SATA is actually bridged PATA, even.

Jeff



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