Subject: Re: Western Digital 250G hard drive
To: Andy Isaacson <adi@hexapodia.org>
From: Manuel Bouyer <bouyer@antioche.eu.org>
List: tech-kern
Date: 12/04/2003 22:35:21
On Thu, Dec 04, 2003 at 03:11:43PM -0600, Andy Isaacson wrote:
> The rotational engine is not the only mechanism in a hard drive that
> might be influenced by "power saving" or "low noise" mode.  A more
> significant issue is how the seek mechanism works.  It's my
> understanding that at least some manufacturers have several selectable
> profiles for how quickly the drive heads seek; slower seeks mean that
> the electromagnets don't need as much current, which translates to less
> heat.
> 
> Seems like a more significant issue than the spinning portion, to me.

Yes, probably. But the current ATA power saving command set doens't allow
to change this. The "low noise" mode probably is.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 24 ans d'experience feront toujours la difference
--