From: Rich Freeman <rich0@gentoo.org>
To: gentoo-amd64@lists.gentoo.org
Subject: Re: [gentoo-amd64] Is my RAID performance bad possibly due to starting sector value?
Date: Thu, 20 Jun 2013 15:27:09 -0400 [thread overview]
Message-ID: <CAGfcS_n492a_PxjYOSDc0rpVEw=a4+VKd-xdm1F6BABJE5tj_A@mail.gmail.com> (raw)
In-Reply-To: <CAK2H+ecth45ADi=k=1b4y8eowYNqoABTo3iMgEzV6pAmthusVA@mail.gmail.com>
On Thu, Jun 20, 2013 at 3:10 PM, Mark Knecht <markknecht@gmail.com> wrote:
> Looking for some thoughtful ideas from those more experienced in this area.
Please do share your findings. I suspect my own RAID+LVM+EXT3/4
system is not optimized - especially with LVM I have no idea how
blocks in ext3/4 end up mapping to stripes and physical blocks. Oh,
and this is on 4k disks.
Honestly, this is one of the reasons I REALLY want to move to btrfs
when it fully supports raid5. Right now the various layers don't talk
to each other and that means a lot of micro-management if you don't
want a lot of read-write-read cycles (to say nothing of what you can
buy with a filesystem that can aim to overwrite entire stripes at a
time).
Rich
next prev parent reply other threads:[~2013-06-20 19:27 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-20 19:10 [gentoo-amd64] Is my RAID performance bad possibly due to starting sector value? Mark Knecht
2013-06-20 19:16 ` Volker Armin Hemmann
2013-06-20 19:28 ` Mark Knecht
2013-06-20 20:45 ` Mark Knecht
2013-06-24 18:47 ` Volker Armin Hemmann
2013-06-24 19:11 ` Mark Knecht
2013-06-20 19:27 ` Rich Freeman [this message]
2013-06-20 19:31 ` Mark Knecht
2013-06-21 7:31 ` [gentoo-amd64] " Duncan
2013-06-21 10:28 ` Rich Freeman
2013-06-21 14:23 ` Bob Sanders
2013-06-21 14:27 ` Duncan
2013-06-21 15:13 ` Rich Freeman
2013-06-22 10:29 ` Duncan
2013-06-22 11:12 ` Rich Freeman
2013-06-22 15:45 ` Duncan
2013-06-22 23:04 ` Mark Knecht
2013-06-22 23:17 ` Matthew Marlowe
2013-06-23 11:43 ` Rich Freeman
2013-06-23 15:23 ` Mark Knecht
2013-06-28 0:51 ` Duncan
2013-06-28 3:18 ` Matthew Marlowe
2013-06-21 17:40 ` Mark Knecht
2013-06-21 17:56 ` Bob Sanders
2013-06-21 18:12 ` Mark Knecht
2013-06-21 17:57 ` Rich Freeman
2013-06-21 18:10 ` Gary E. Miller
2013-06-21 18:38 ` Mark Knecht
2013-06-21 18:50 ` Gary E. Miller
2013-06-21 18:57 ` Rich Freeman
2013-06-22 14:34 ` Duncan
2013-06-22 22:15 ` Gary E. Miller
2013-06-28 0:20 ` Duncan
2013-06-28 0:41 ` Gary E. Miller
2013-06-21 18:53 ` Bob Sanders
2013-06-22 14:23 ` Duncan
2013-06-23 1:02 ` Mark Knecht
2013-06-23 1:48 ` Mark Knecht
2013-06-28 3:36 ` Duncan
2013-06-28 9:12 ` Duncan
2013-06-28 17:50 ` Gary E. Miller
2013-06-29 5:40 ` Duncan
2013-06-30 1:04 ` Rich Freeman
2013-06-22 12:49 ` [gentoo-amd64] " B Vance
2013-06-22 13:12 ` Rich Freeman
2013-06-23 11:31 ` thegeezer
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