From: bugzilla-daemon@bugzilla.kernel.org
To: linux-scsi@vger.kernel.org
Subject: [Bug 14831] mptsas - Use of ATA command pass-through results in unreliable operation - drive / controller resets
Date: Mon, 24 May 2010 09:05:14 GMT [thread overview]
Message-ID: <201005240905.o4O95EfA017205@demeter.kernel.org> (raw)
In-Reply-To: <bug-14831-11613@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=14831
dujun@perabytes.com changed:
What |Removed |Added
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CC| |dujun@perabytes.com
--- Comment #25 from dujun@perabytes.com 2010-05-24 09:05:10 ---
https://bugzilla.kernel.org/show_bug.cgi?id=16021
we have a similar problem which I described in above bug report. Ryan told me
about this patch work and I have it tested in our system. It seems that it
works, and the md raid rebuild speed is around 60MB/s for 16 hdd.
However, the dd speed for when raid 5 is rebuiding is much less than original
result. Around 150MB/s for write compared with almost 400MB/s without the
patch. 600MB/s for read compared with 800MB/s.
Is this caused by the bounce buffer for the alignment? Is there any way to
solve this problem in lsi formware so that we don't need a forced alignment?
We will test the software raid grow problem reported by Brian later.
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next prev parent reply other threads:[~2010-05-24 9:05 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-14831-11613@https.bugzilla.kernel.org/>
2010-03-21 11:34 ` [Bug 14831] mptsas - Use of ATA command pass-through results in unreliable operation - drive / controller resets bugzilla-daemon
2010-03-30 14:53 ` bugzilla-daemon
2010-04-29 7:25 ` bugzilla-daemon
2010-04-29 9:27 ` bugzilla-daemon
2010-05-03 22:22 ` bugzilla-daemon
2010-05-04 5:16 ` bugzilla-daemon
2010-05-04 9:16 ` bugzilla-daemon
2010-05-05 10:35 ` bugzilla-daemon
2010-05-07 4:56 ` bugzilla-daemon
2010-05-07 8:01 ` bugzilla-daemon
2010-05-12 8:50 ` bugzilla-daemon
2010-05-12 9:04 ` bugzilla-daemon
2010-05-12 9:33 ` bugzilla-daemon
2010-05-12 10:22 ` bugzilla-daemon
2010-05-24 9:05 ` bugzilla-daemon [this message]
2010-05-26 8:08 ` bugzilla-daemon
2010-06-07 20:00 ` bugzilla-daemon
2010-06-08 0:29 ` bugzilla-daemon
2010-06-08 6:44 ` bugzilla-daemon
2010-06-08 8:43 ` bugzilla-daemon
2010-06-29 20:26 ` bugzilla-daemon
2010-08-28 15:44 ` bugzilla-daemon
2010-08-28 15:45 ` bugzilla-daemon
2010-08-28 15:46 ` bugzilla-daemon
2010-08-28 15:47 ` bugzilla-daemon
2010-08-28 15:51 ` bugzilla-daemon
2010-08-28 15:53 ` bugzilla-daemon
2010-08-30 15:18 ` bugzilla-daemon
2010-08-30 16:42 ` bugzilla-daemon
2010-08-31 8:17 ` bugzilla-daemon
2010-09-28 19:07 ` bugzilla-daemon
2012-06-18 13:20 ` bugzilla-daemon
2012-06-18 13:20 ` bugzilla-daemon
2009-12-18 11:25 [Bug 14831] New: " bugzilla-daemon
2009-12-18 12:44 ` [Bug 14831] " bugzilla-daemon
2009-12-18 15:18 ` bugzilla-daemon
2009-12-18 15:31 ` bugzilla-daemon
2009-12-18 15:32 ` bugzilla-daemon
2009-12-21 4:51 ` bugzilla-daemon
2009-12-21 4:52 ` bugzilla-daemon
2009-12-21 12:08 ` bugzilla-daemon
2009-12-21 12:11 ` bugzilla-daemon
2010-01-11 11:59 ` bugzilla-daemon
2010-01-12 23:15 ` bugzilla-daemon
2010-01-13 12:30 ` bugzilla-daemon
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