From: "Miquel van Smoorenburg" <miquels@cistron.nl>
To: linux-kernel@vger.kernel.org
Subject: Re: [patch 2.6] don't put IDE disks in standby mode on halt on Alpha
Date: Thu, 27 May 2004 17:41:25 +0000 (UTC) [thread overview]
Message-ID: <c95985$gd7$1@news.cistron.nl> (raw)
In-Reply-To: <1085675193.7179.5.camel@laptop.fenrus.com>
In article <1085675193.7179.5.camel@laptop.fenrus.com>,
Arjan van de Ven <arjanv@redhat.com> wrote:
>On Thu, 2004-05-27 at 17:49, Ivan Kokshaysky wrote:
>> Spinning the disks down across a 'halt' on Alpha is even
>> worse than doing that on reboot on i386 (assuming the
>> boot device is IDE disk).
>
>how do you flush the disks' writecache then? Halting the disk seems to
>be the only reliable way to do so.
On Alpha, Sun and other hardware, "halt" puts you into the firmware
monitor. It doesn't actually turn the machine off, so it's not
critical to flush the write cache of the disk - the only time
that is really neccesary is right before poweroff, in all other
cases the disk will expire the write cache itself.
Mike.
next prev parent reply other threads:[~2004-05-27 17:41 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-27 15:49 Ivan Kokshaysky
2004-05-27 16:26 ` Arjan van de Ven
2004-05-27 17:11 ` Ivan Kokshaysky
2004-05-27 17:12 ` Arjan van de Ven
2004-05-27 17:41 ` Miquel van Smoorenburg [this message]
2004-05-27 16:54 ` Bartlomiej Zolnierkiewicz
2004-05-27 17:08 ` Ivan Kokshaysky
2004-05-27 17:40 ` Bartlomiej Zolnierkiewicz
2004-05-28 15:10 ` Ivan Kokshaysky
2004-05-28 15:40 ` Bartlomiej Zolnierkiewicz
2004-05-28 21:37 ` Ivan Kokshaysky
2004-05-29 18:07 ` Bartlomiej Zolnierkiewicz
2004-05-28 10:34 ` Mark McClelland
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