From: Steve Lord <lord@sgi.com>
To: Roy Sigurd Karlsbakk <roy@karlsbakk.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: RAID-5 build time calculation?
Date: 14 Nov 2001 09:20:40 -0600 [thread overview]
Message-ID: <1005751240.23586.18.camel@jen.americas.sgi.com> (raw)
In-Reply-To: <Pine.LNX.4.30.0111141437440.5877-100000@mustard.heime.net>
In-Reply-To: <Pine.LNX.4.30.0111141437440.5877-100000@mustard.heime.net>
On Wed, 2001-11-14 at 07:40, Roy Sigurd Karlsbakk wrote:
> hi all
>
> I apologize if this is more of a support question, but I couldn't find it
> anywhere...
>
> How long time may I have to wait for kernel to build a software RAID-5 on
> 12 18GB 15k SCSI drives? Algorithm is set to left-symmetric and persistent
> superblock is 1.
>
> What can be done to speed this up_
>
> thanks
>
I have seen the raid resync get stuck at really slow rates, it seems to
start running faster if you echo a larger number into
/proc/sys/dev/raid/speed_limit_min
You can look at /proc/mdstat to see how the rebuild is progressing.
Steve
prev parent reply other threads:[~2001-11-14 15:27 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-14 13:40 Roy Sigurd Karlsbakk
2001-11-14 15:20 ` Steve Lord [this message]
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