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?
Date: Thu, 21 Mar 2002 08:50:24 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.10.10203210845450.4958-100000@master.linux-ide.org> (raw)
In-Reply-To: <Pine.LNX.4.33.0203211601460.20748-100000@host140.cambridge.redhat.com>
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
next prev parent reply other threads:[~2002-03-21 16:51 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-03-21 15:57 Chris Friesen
2002-03-21 16:15 ` Alan Cox
2002-03-21 16:02 ` Bernd Schmidt
2002-03-21 16:50 ` Andre Hedrick [this message]
[not found] <200203221128.g2MBSnX13073@Port.imtp.ilyichevsk.odessa.ua>
2002-03-22 15:15 ` Bernd Schmidt
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