linux-ext4 - Re: Uneven load on my raid disks.

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Message-ID: <20101228091825.GC1351@bitwizard.nl>
Date:	Tue, 28 Dec 2010 10:18:25 +0100
From:	Rogier Wolff <R.E.Wolff@...Wizard.nl>
To:	Rogier Wolff <R.E.Wolff@...Wizard.nl>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: Uneven load on my raid disks.

On Tue, Dec 28, 2010 at 10:07:49AM +0100, Rogier Wolff wrote:
> dumpe2fs without -h takes a long time. I just stopped all rm processes
> and now only dumpe2fs is running. It seems to be causing about 10times
> more load on sdb than on the other drives. strace shows that it is in
> a loop where it seeks/reads. It is alternating reads of 4k and 280
> bytes.

OK. I did this wrong: there were also other things running. Whatever
dumpe2fs is doing distributes nicely over the four disks.

	Roger. 

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