From mboxrd@z Thu Jan  1 00:00:00 1970
From: Asdo <asdo@shiftmail.org>
Subject: Re: RAID5 speed goes down
Date: Thu, 19 Jul 2012 18:32:52 +0200
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On 07/16/12 22:10, Alexander Schleifer wrote:
>   What can I do to get more
> information what is going on there?
>

iostat -x 1

cat /sys/block/mdX/md/stripe_cache_active

also tell your kernel version