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Date: Thu, 21 Mar 2002 08:50:24 -0800 (PST)
From: Andre Hedrick <andre@linux-ide.org>
To: Bernd Schmidt <bernds@redhat.com>
cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
        Chris Friesen <cfriesen@nortelnetworks.com>,
        linux-kernel@vger.kernel.org
Subject: Re: last write to drive issued with write cache off?
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On Thu, 21 Mar 2002, Bernd Schmidt wrote:

> On Thu, 21 Mar 2002, Alan Cox wrote:
> 
> > > "To prevent loss of customer data, it is recommended that the last write access
> > > before power off be issued after setting the write cache off."
> > 
> > Standard 2.4 doesn't do this. 2.4.19-ac issues cache flushes.
> 
> Is this what's been causing my harddrives to make funny noises on shutdown
> recently?

Your so called funny noise is the process of flushing cache and putting
your drive to sleep in a spin down.  It only happens if you are going to
shutdown thw system.  If you are warm booting or rebooting you only get a
flush cache.

Cheers,

Andre Hedrick
LAD Storage Consulting Group

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