From: Emmanuel Florac <eflorac@intellique.com>
To: Dave Hall <kdhall@binghamton.edu>
Cc: stan@hardwarefreak.com, "xfs@oss.sgi.com" <xfs@oss.sgi.com>
Subject: Re: XFS/LVM/Multipath on a single RAID volume
Date: Wed, 25 Feb 2015 12:21:13 +0100 [thread overview]
Message-ID: <20150225122113.290abf22@harpe.intellique.com> (raw)
In-Reply-To: <54ECF573.9050106@binghamton.edu>
Le Tue, 24 Feb 2015 17:04:35 -0500
Dave Hall <kdhall@binghamton.edu> écrivait:
> The new hardware is an Infortrend with 16 x 2TB 6Gbps SAS drives. It
> has one controller with dual 6Gbps SAS ports. The server currently
> has two 3Gbps SAS HBAs.
On my experience with these kinds of controllers, they perform quite
poorly with more than 1 RAID-6 array. I'd go for a single RAID-6
array. Then as you said you'll have to do multipath LVM to create two
LVs to stripe together to use both your HBAs and get some more
performance.
However with only 16 7k RPM drives you can't hope much more than 1.5
GByte/s, which is achievable with only one 3Gb SAS HBA...
--
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next prev parent reply other threads:[~2015-02-25 11:21 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-13 18:11 xfs_fsr, sunit, and swidth Dave Hall
2013-03-13 23:57 ` Dave Chinner
2013-03-14 0:03 ` Stan Hoeppner
[not found] ` <514153ED.3000405@binghamton.edu>
2013-03-14 12:26 ` Stan Hoeppner
2013-03-14 12:55 ` Stan Hoeppner
2013-03-14 14:59 ` Dave Hall
2013-03-14 18:07 ` Stefan Ring
2013-03-15 5:14 ` Stan Hoeppner
2013-03-15 11:45 ` Dave Chinner
2013-03-16 4:47 ` Stan Hoeppner
2013-03-16 7:21 ` Dave Chinner
2013-03-16 11:45 ` Stan Hoeppner
2013-03-25 17:00 ` Dave Hall
2013-03-27 21:16 ` Stan Hoeppner
2013-03-29 19:59 ` Dave Hall
2013-03-31 1:22 ` Dave Chinner
2013-04-02 10:34 ` Hans-Peter Jansen
2013-04-03 14:25 ` Dave Hall
2013-04-12 17:25 ` Dave Hall
2013-04-13 0:45 ` Dave Chinner
2013-04-13 0:51 ` Stan Hoeppner
2013-04-15 20:35 ` Dave Hall
2013-04-16 1:45 ` Stan Hoeppner
2013-04-16 16:18 ` Dave Chinner
2015-02-22 23:35 ` XFS/LVM/Multipath on a single RAID volume Dave Hall
2015-02-23 11:18 ` Emmanuel Florac
2015-02-24 22:04 ` Dave Hall
2015-02-24 22:33 ` Dave Chinner
[not found] ` <54ED01BC.6080302@binghamton.edu>
2015-02-24 23:33 ` Dave Chinner
2015-02-25 11:49 ` Emmanuel Florac
2015-02-25 11:21 ` Emmanuel Florac [this message]
2013-03-28 1:38 ` xfs_fsr, sunit, and swidth Dave Chinner
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