From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 60644] MPT2SAS drops all HDDs when under high I/O
Date: Wed, 28 Aug 2013 08:44:31 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=60644
Bernd Schubert changed:
What |Removed |Added
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CC| |bernd.schubert@fastmail.fm
--- Comment #25 from Bernd Schubert ---
Have you already tried to give the controller less work, i.e. by setting
/sys/block/sdX/device/queue_depth to 1? If you can't set it, use the mpt2sas
option max_queue_depth=1. A low value of max_sgl_entries and max_sectors also
might help. Lowering all of that is not good for performance, but might
increase stability.
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