Re: HD spin down with hdparm : HD always wakes up !!!

[Dimitri Maziuk <dmaziuk@yola.bmrb.wisc.edu>]

* Matthew Sackman (matthew@sackman.co.uk) spake thusly:
> Could I just ask, why do you want to enable spin down?
> 
> Hard discs consume the most power on start up. They also undergo the
> greatest stress when spinning up. Therefore, if your disks keep having
> to spin up, then you are actually not saving anywhere as much energy as
> you suspect, and you are also reducing the life expectancy of your
> disks.

Also, if you spin down an old disc, it may not spin back up 
again -- something about grease in the bearings solidifying
when the temperature goes down, IIRC.

Dima
-- 
One distinguishing characteristic of BOFHen is attention deficit disorder.  
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