From: Kelly Byrd <kbyrd-lvm@memcpy.com>
To: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] LVM2 striping or md raid0
Date: Tue, 25 Sep 2007 12:49:35 -0700 [thread overview]
Message-ID: <f73e16539766341385fcc97b8915a65f@memcpy.com> (raw)
In-Reply-To: <5cbd03f56b69e61e1407530930bb5939@memcpy.com>
On Sat, 22 Sep 2007 18:36:41 -0700, Kelly Byrd <kbyrd-lvm@memcpy.com>
wrote:
>
> Two questions really:
>
> I'm going to use lvm to partition up 4 equal size partitions.
> I can either use the md driver to RAID0 them the make /dev/md0
> my PV, or just use the 4 partitions as PVs and stripe across
> them.
>
> How does lvm2 striping compare with md's RAID0 as far as speed?
> I don't quite get how it stripes on chunk sizes smaller than
> a PE, but a 4MB stripe size seems crazy.
>
> Finally, what's the tuning advice for LVM2 striping? I usually
> create my RAID0 or RAID5 with 128k chunk sizes, is it similar
> for LVM2 striping?
>
>
anyone?
next prev parent reply other threads:[~2007-09-25 20:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-23 1:36 [linux-lvm] LVM2 striping or md raid0 Kelly Byrd
2007-09-25 19:49 ` Kelly Byrd [this message]
2007-09-25 21:26 ` Chris Cox
2007-09-26 1:05 ` Stuart D. Gathman
2007-09-26 1:15 ` Stuart D. Gathman
[not found] <4b9a0d7ea026e7ca31fcfc9063443f08@memcpy.com>
2007-09-25 21:40 ` Kelly Byrd
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