From: Richard Scobie <richard@sauce.co.nz>
To: Asdo <asdo@shiftmail.org>
Cc: linux-raid <linux-raid@vger.kernel.org>
Subject: Re: xfs > md 50% write performance drop on .30+ kernel?
Date: Wed, 14 Oct 2009 08:53:08 +1300 [thread overview]
Message-ID: <4AD4DAA4.4080703@sauce.co.nz> (raw)
In-Reply-To: <4AD454A0.3050704@shiftmail.org>
Asdo wrote:
> Do you think it was controller's overhead? I have heard mixed opinions
> about 3wares. What are the fastest controllers around for MD-raid use?
The fastest setup I have found have been LSI SAS cards - LSISAS3442E-R,
with the onboard RAID firmware replaced with the IT firmware.
This is connected to port expander based JBOD chassis loaded with either
SAS or SATA drives.
Regards,
Richard
next prev parent reply other threads:[~2009-10-13 19:53 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-12 16:58 xfs > md 50% write performance drop on .30+ kernel? mark delfman
2009-10-12 18:40 ` Richard Scobie
2009-10-13 1:33 ` Christoph Hellwig
2009-10-13 1:57 ` NeilBrown
2009-10-13 11:06 ` mark delfman
2009-10-13 11:09 ` Majed B.
[not found] ` <66781b10910130412x309d9de2l574ba12a9ed4100a@mail.gmail.com>
2009-10-13 11:15 ` Majed B.
2009-10-13 11:29 ` mark delfman
2009-10-13 14:30 ` Asdo
2009-10-13 15:13 ` mark delfman
2009-10-13 15:15 ` mark delfman
2009-10-13 22:52 ` Christoph Hellwig
2009-10-14 19:34 ` mark delfman
2009-10-27 10:28 ` Thomas Fjellstrom
2009-10-27 11:11 ` Thomas Fjellstrom
2010-01-02 6:54 ` fibre raid
2009-10-13 3:38 ` Richard Scobie
2009-10-13 10:21 ` Asdo
2009-10-13 10:34 ` Mikael Abrahamsson
2009-10-13 14:49 ` Asdo
2009-10-13 19:53 ` Richard Scobie [this message]
2009-10-13 21:52 ` mark delfman
2009-10-13 18:49 ` Greg Freemyer
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