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From: Todd Inglett <tinglett@chartermi.net>
To: Marcelo Borges Ribeiro <marcelo@datacom-telematica.com.br>
Cc: linux-kernel@vger.kernel.org
Subject: Re: making an ide hd sleep
Date: Thu, 06 Dec 2001 08:52:24 -0600	[thread overview]
Message-ID: <3C0F8628.7010100@chartermi.net> (raw)
In-Reply-To: <002d01c17e48$6df98a20$1300a8c0@marcelo>

Marcelo Borges Ribeiro wrote:

>Hi, I´d like to know if it's possible to put an ide hd to sleep after (for
>example) 15 min. idle (i don´t know if an hd under linux stays  idle that
>amount of time. ). I tried mount -o noatime and hdparm -S 150 /dev/hda, but
>it seems that when it sleeps it starts working after a few seconds (when it
>sleeps!). Is there a way to have this feature under linux?
>
This is more difficult that it sounds.  Section 4 of the Battery-Powered 
mini HOWTO (which is a bit out of date) has some useful advice.  You are 
doing it right...but something is touching the filesystem (or swap) on 
the drive.  It would be nice if there would be some way of enabling 
logging to say what process touched the filesystem.  Of course the 
logging itself would touch the filesystem (on a laptop :)).

  http://www.linuxdoc.org/HOWTO/mini/Battery-Powered-4.html

-todd


  parent reply	other threads:[~2001-12-06 14:52 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-12-06 11:23 making an ide hd sleep Marcelo Borges Ribeiro
2001-12-06 12:06 ` José Luis Domingo López
2001-12-06 14:52 ` Todd Inglett [this message]
2001-12-06 16:00 ` Kristian Peters
2001-12-07 20:37 ` Pavel Machek

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