From: James Bottomley <James.Bottomley@SteelEye.com>
To: Pavel Machek <pavel@suse.cz>
Cc: Jens Axboe <axboe@suse.de>, Jon Escombe <trial@dresco.co.uk>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Jeff Garzik <jgarzik@pobox.com>
Subject: Re: Suspend/Resume
Date: Mon, 09 May 2005 09:07:21 -0500 [thread overview]
Message-ID: <1115647641.5051.1.camel@mulgrave> (raw)
In-Reply-To: <20050509101344.GA24478@atrey.karlin.mff.cuni.cz>
On Mon, 2005-05-09 at 12:13 +0200, Pavel Machek wrote:
> In IDE we do that to reliably flush drive caches... If write caching
> actually works on SCSI, we should not need that hacks.
Define "works". Actual write caching works fine with IDE (it doesn't
lose the data). On the other hand, turning the cache off or flushing it
can be problematic because not all IDE devices respond to these
commands.
So, what I think you're saying is that you don't want the internal
drives to spin down, but you do want to send a synchronize cache command
to those which have a writeback cache enabled?
James
next prev parent reply other threads:[~2005-05-09 14:08 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-21 14:16 Suspend/Resume Davy Durham
2005-05-02 14:23 ` Suspend/Resume Jon Escombe
2005-05-02 14:47 ` Suspend/Resume Jens Axboe
2005-05-02 20:13 ` Suspend/Resume Jon Escombe
2005-05-03 14:10 ` Suspend/Resume Jens Axboe
2005-05-08 3:53 ` Suspend/Resume James Bottomley
2005-05-08 16:21 ` Suspend/Resume Jens Axboe
2005-05-08 17:08 ` Suspend/Resume James Bottomley
2005-05-09 10:13 ` Suspend/Resume Pavel Machek
2005-05-09 14:07 ` James Bottomley [this message]
2005-05-09 19:17 ` Suspend/Resume Pavel Machek
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