From: Tejun Heo <tj@kernel.org>
To: Fredrik Tuomas <fredrik.tuomas@gmail.com>
Cc: linux-ide@vger.kernel.org
Subject: Re: Some of mine ST31000520AS drives unloads head very frequent and I cannot set APM on them
Date: Mon, 09 Nov 2009 17:19:49 +0900 [thread overview]
Message-ID: <4AF7D0A5.5030502@kernel.org> (raw)
In-Reply-To: <e44195c70909080252q18e26886p8adbf6183b70ebc2@mail.gmail.com>
Sorry about the long delay.
Fredrik Tuomas wrote:
> In the pdf on
>
> http://www.seagate.com/staticfiles/support/disc/manuals/desktop/Barracuda%20LP/100564361a.pdf
>
> you can read that APM is not supported on the disk. Now I'm confused.
> I can set APM on at least one of my drives. How can I prohibit the
> excessive loading/unloading of the heads if APM not is supported?
There are drives with vendor specific commands for controlling
powersaving behavior. Unfortunately, you'll have to contact the
vendor for those. :-(
Thanks.
--
tejun
prev parent reply other threads:[~2009-11-09 8:19 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-08 8:24 Some of mine ST31000520AS drives unloads head very frequent and I cannot set APM on them Fredrik Tuomas
2009-09-08 9:52 ` Fredrik Tuomas
2009-11-09 8:19 ` Tejun Heo [this message]
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