From: Andre Noll <maan@systemlinux.org>
To: Matthew Whittaker-Williams <matthew@xsnews.nl>
Cc: xfs@oss.sgi.com
Subject: Re: XFS hangs and freezes with LSI 9265-8i controller on high i/o
Date: Wed, 13 Jun 2012 13:59:34 +0200 [thread overview]
Message-ID: <20120613115934.GX32601@systemlinux.org> (raw)
In-Reply-To: <4FD8552C.4090208@xsnews.nl>
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On Wed, Jun 13, 10:54, Matthew Whittaker-Williams wrote:
> Current Cache Policy: WriteBack, ReadAheadNone, Direct, Write Cache OK if Bad BBU
> Disk Cache Policy : Disk's Default
Check if these two policy settings are what you really want. AFAICT
they can make a huge difference, depending on the workload.
Here's what gives best performance. Of course these are also the most
risky settings, so use with care:
Current Cache Policy: WriteBack, ReadAdaptive, Cached, Write Cache OK if Bad BBU
Disk Cache Policy: Enabled
To select these settings for all lds on adapter 0, use
CLI=MegaCli; lsi_adapter_number=0
$CLI -ldsetprop CachedBadBBU -LALL -a$lsi_adapter_number &&
$CLI -ldsetprop -Cached -LAll -a$lsi_adapter_number &&
$CLI -ldsetprop -EnDskCache -LAll -a$lsi_adapter_number &&
$CLI -ldsetprop WB -LALL -a$lsi_adapter_number
Best
Andre
--
The only person who always got his work done by Friday was Robinson Crusoe
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next prev parent reply other threads:[~2012-06-13 11:58 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-11 21:37 XFS hangs and freezes with LSI 9265-8i controller on high i/o Matthew Whittaker-Williams
2012-06-12 1:18 ` Dave Chinner
2012-06-12 15:56 ` Matthew Whittaker-Williams
2012-06-12 17:40 ` Matthew Whittaker-Williams
2012-06-13 0:12 ` Stan Hoeppner
2012-06-13 1:19 ` Dave Chinner
2012-06-13 3:56 ` Stan Hoeppner
2012-06-13 8:54 ` Matthew Whittaker-Williams
2012-06-13 11:59 ` Andre Noll [this message]
2012-06-13 12:13 ` Michael Monnerie
2012-06-13 16:12 ` Stan Hoeppner
2012-06-14 7:31 ` Michael Monnerie
2012-06-14 0:04 ` Dave Chinner
2012-06-14 14:31 ` Matthew Whittaker-Williams
2012-06-15 0:16 ` Dave Chinner
2012-06-15 9:52 ` Michael Monnerie
2012-06-15 12:29 ` Dave Chinner
2012-06-15 11:25 ` Bernd Schubert
2012-06-15 12:30 ` Dave Chinner
2012-06-15 14:22 ` Bernd Schubert
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