From: Brad Campbell <brad@wasp.net.au>
To: Alexander Stockinger <stockina@fmi.uni-passau.de>
Cc: linux-raid@vger.kernel.org
Subject: Re: RAID 5 disks not spinning down
Date: Sat, 12 Mar 2005 18:09:18 +0400 [thread overview]
Message-ID: <4232F80E.1030202@wasp.net.au> (raw)
In-Reply-To: <d0uamj$s15$1@sea.gmane.org>
Alexander Stockinger wrote:
> Hi all,
>
> I have a linux software RAID 5 running on a Debian Sarge with 2.6.7-smp.
> Since I installed the system (several kernel updates ago) the disks of
> the RAID 5 won't stay spinned down. Having them sent to standy manually
> using hdparm ends up in having the disks spin up within the next minute
> or so.
> To further investigate the problem I watched the /proc/diskstats file
> for /dev/md0 and realized that prior to the spinup a single read access
> to the RAID is issued - consequently the disks attached to the read spin
> up again...
Does it occur if you have the filesystem on the md device unmounted?
Regards,
Brad
--
"Human beings, who are almost unique in having the ability
to learn from the experience of others, are also remarkable
for their apparent disinclination to do so." -- Douglas Adams
next prev parent reply other threads:[~2005-03-12 14:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-12 8:54 RAID 5 disks not spinning down Alexander Stockinger
2005-03-12 14:09 ` Brad Campbell [this message]
2005-03-12 14:19 ` Alexander Stockinger
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