From: Janek Kozicki <janek_listy@wp.pl>
Cc: linux-raid@vger.kernel.org
Subject: Re: RAID5 to RAID6 reshape?
Date: Mon, 18 Feb 2008 15:42:03 +0100 [thread overview]
Message-ID: <20080218154203.6e2d1483@szpak> (raw)
In-Reply-To: <aebf5d970802180438w7a4d40ban3f66ee1dbc38d259@mail.gmail.com>
Beolach said: (by the date of Mon, 18 Feb 2008 05:38:15 -0700)
> On Feb 17, 2008 10:26 PM, Janek Kozicki <janek_listy@wp.pl> wrote:
> > Conway S. Smith said: (by the date of Sun, 17 Feb 2008 07:45:26 -0700)
> >
> > > Well, I was reading that LVM2 had a 20%-50% performance penalty,
> <http://gentoo-wiki.com/HOWTO_Gentoo_Install_on_Software_RAID_mirror_and_LVM2_on_top_of_RAID>.
hold on. This might be related to raid chunk positioning with respect
to LVM chunk positioning. If they interfere there indeed may be some
performance drop. Best to make sure that those chunks are aligned together.
--
Janek Kozicki |
next prev parent reply other threads:[~2008-02-18 14:42 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-17 3:58 RAID5 to RAID6 reshape? Beolach
2008-02-17 11:50 ` Peter Grandi
2008-02-17 14:45 ` Conway S. Smith
2008-02-18 5:26 ` Janek Kozicki
2008-02-18 12:38 ` Beolach
2008-02-18 14:42 ` Janek Kozicki [this message]
2008-02-19 19:41 ` LVM performance (was: Re: RAID5 to RAID6 reshape?) Oliver Martin
2008-02-19 19:52 ` Jon Nelson
2008-02-19 20:00 ` Iustin Pop
2008-02-19 23:19 ` LVM performance Peter Rabbitson
2008-02-20 12:19 ` LVM performance (was: Re: RAID5 to RAID6 reshape?) Peter Grandi
2008-02-22 13:41 ` LVM performance Oliver Martin
2008-03-07 8:14 ` Peter Grandi
2008-03-09 19:56 ` Oliver Martin
2008-03-09 21:13 ` Michael Guntsche
2008-03-09 23:27 ` Oliver Martin
2008-03-09 23:53 ` Michael Guntsche
2008-03-10 8:54 ` Oliver Martin
2008-03-10 21:04 ` Peter Grandi
2008-03-12 14:03 ` Michael Guntsche
2008-03-12 19:54 ` Peter Grandi
2008-03-12 20:11 ` Guntsche Michael
2008-03-10 0:32 ` Richard Scobie
2008-03-10 0:53 ` Michael Guntsche
2008-03-10 0:59 ` Richard Scobie
2008-03-10 1:21 ` Michael Guntsche
2008-02-18 19:05 ` RAID5 to RAID6 reshape? Peter Grandi
2008-02-20 6:39 ` Alexander Kühn
2008-02-22 8:13 ` Peter Grandi
2008-02-23 20:40 ` Nagilum
2008-02-25 0:10 ` Peter Grandi
2008-02-25 16:31 ` Nagilum
2008-02-17 13:31 ` Janek Kozicki
2008-02-17 16:18 ` Conway S. Smith
2008-02-18 3:48 ` Neil Brown
2008-02-17 22:40 ` Mark Hahn
2008-02-17 23:54 ` Janek Kozicki
2008-02-18 12:46 ` Andre Noll
2008-02-18 18:23 ` Mark Hahn
2008-02-17 14:06 ` Janek Kozicki
2008-02-17 23:54 ` cat
2008-02-18 3:43 ` Neil Brown
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