From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alexander Schleifer <alexander.schleifer@googlemail.com>
Subject: RAID5 speed goes down
Date: Mon, 16 Jul 2012 22:10:09 +0200
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Hi,

after re-sync and fsck, everything seems fine. The first try to copy a
big test file to the raid5 starts with a speed of ~45 MB/s which is
perfect, but after a couple of minutes the speed goes down to ~10
KB/s. The only way to get the raid5 working again was to reset the
system. The raid5 then goes again in resync from an unclean array. I
checked dmesg, but found nothing. What can I do to get more
information what is going on there?

Thanks,
Alex