From: seth vidal <skvidal@phy.duke.edu>
To: John Rowe <rowe@excc.ex.ac.uk>
Cc: linux-raid@vger.kernel.org
Subject: Re: Slow reconstruction
Date: Wed, 29 Jun 2005 13:32:58 -0400 [thread overview]
Message-ID: <1120066378.10448.57.camel@cutter> (raw)
In-Reply-To: <1120061430.21458.236.camel@volt>
On Wed, 2005-06-29 at 17:10 +0100, John Rowe wrote:
> First, thanks to all the authors of software RAID, which works really
> well.
>
> I have just one problem(!) and as disks get bigger it gets worse:
> reconstruction takes a long time. At the moment I've just had a disk
> fail on a 5x250 GB RAID5 array and it's going to take eight days to
> recover. Is there anything I can do to speed things up?
>
> FWIW, each disk is the master drive on an IDE card, two of the disks are
> shared with the RAID1 root partition and one of the 5 devices is a RAID0
> stripe. The system isn't doing anything else, it's just used for backup.
>
you know about /proc/sys/dev/raid/speed_limit_max and speed_limit_min,
right?
echo 40000 > /proc/sys/dev/raid/speed_limit_max
see if it goes faster, then.
-sv
prev parent reply other threads:[~2005-06-29 17:32 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-29 16:10 Slow reconstruction John Rowe
2005-06-29 16:40 ` Mike Hardy
2005-06-29 17:31 ` John Rowe
2005-06-29 17:46 ` seth vidal
2005-06-29 17:49 ` John Rowe
2005-06-29 17:49 ` KELEMEN Peter
2005-06-29 17:52 ` John Rowe
2005-06-29 18:00 ` KELEMEN Peter
2005-06-29 17:54 ` Tyler
2005-06-29 17:32 ` seth vidal [this message]
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