From: Brian Candler <B.Candler@pobox.com>
To: Jessie Evangelista <jessie.evangelista@gmail.com>
Cc: Peter Grandi <pg@lxra2.for.sabi.co.uk>,
Linux RAID <linux-raid@vger.kernel.org>,
Linux fs XFS <xfs@oss.sgi.com>
Subject: Re: raid10n2/xfs setup guidance on write-cache/barrier
Date: Fri, 16 Mar 2012 17:15:09 +0000 [thread overview]
Message-ID: <20120316171509.GD49365@nsrc.org> (raw)
In-Reply-To: <CAA8mOyC-xCcNxQFz-M1_TfnxcGBmpUdQ57_vYNVF11jhWK3SSA@mail.gmail.com>
On Fri, Mar 16, 2012 at 11:36:07AM +0800, Jessie Evangelista wrote:
> I'm still scouring the internet for a best practice recipe for
> implementing xfs/mdraid.
> I am open to writing one and including the inputs everyone is contributing here.
> In my search, I also saw some references of alignment issues for partitions.
> this is what I used to setup the partitions for the md device
>
> sfdisk /dev/sdb <<EOF
> unit: sectors
>
> 63,104872257,fd
> 0,0,0
> 0,0,0
> 0,0,0
> EOF
>
> I've read a recommendation to start the partition on the 1MB mark.
> Does this make sense?
I would just make the raw disks members of the RAID array, e.g.
/dev/sdb, /dev/sdc etc and not partition them.
WARNING: multiple messages have this Message-ID (diff)
From: Brian Candler <B.Candler@pobox.com>
To: Jessie Evangelista <jessie.evangelista@gmail.com>
Cc: Linux RAID <linux-raid@vger.kernel.org>,
Peter Grandi <pg@lxra2.for.sabi.co.uk>,
Linux fs XFS <xfs@oss.sgi.com>
Subject: Re: raid10n2/xfs setup guidance on write-cache/barrier
Date: Fri, 16 Mar 2012 17:15:09 +0000 [thread overview]
Message-ID: <20120316171509.GD49365@nsrc.org> (raw)
In-Reply-To: <CAA8mOyC-xCcNxQFz-M1_TfnxcGBmpUdQ57_vYNVF11jhWK3SSA@mail.gmail.com>
On Fri, Mar 16, 2012 at 11:36:07AM +0800, Jessie Evangelista wrote:
> I'm still scouring the internet for a best practice recipe for
> implementing xfs/mdraid.
> I am open to writing one and including the inputs everyone is contributing here.
> In my search, I also saw some references of alignment issues for partitions.
> this is what I used to setup the partitions for the md device
>
> sfdisk /dev/sdb <<EOF
> unit: sectors
>
> 63,104872257,fd
> 0,0,0
> 0,0,0
> 0,0,0
> EOF
>
> I've read a recommendation to start the partition on the 1MB mark.
> Does this make sense?
I would just make the raw disks members of the RAID array, e.g.
/dev/sdb, /dev/sdc etc and not partition them.
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next prev parent reply other threads:[~2012-03-16 17:15 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-15 0:30 raid10n2/xfs setup guidance on write-cache/barrier Jessie Evangelista
2012-03-15 5:38 ` Stan Hoeppner
2012-03-15 12:06 ` Jessie Evangelista
2012-03-15 14:07 ` Peter Grandi
2012-03-15 14:07 ` Peter Grandi
2012-03-15 15:25 ` keld
2012-03-15 15:25 ` keld
2012-03-15 16:52 ` Jessie Evangelista
2012-03-15 16:52 ` Jessie Evangelista
2012-03-15 17:15 ` keld
2012-03-15 17:15 ` keld
2012-03-15 17:40 ` keld
2012-03-15 17:40 ` keld
2012-03-15 16:18 ` Jessie Evangelista
2012-03-15 16:18 ` Jessie Evangelista
2012-03-15 23:00 ` Peter Grandi
2012-03-15 23:00 ` Peter Grandi
2012-03-16 3:36 ` Jessie Evangelista
2012-03-16 3:36 ` Jessie Evangelista
2012-03-16 11:06 ` Michael Monnerie
2012-03-16 11:06 ` Michael Monnerie
2012-03-16 12:21 ` Peter Grandi
2012-03-16 12:21 ` Peter Grandi
2012-03-16 17:15 ` Brian Candler [this message]
2012-03-16 17:15 ` Brian Candler
2012-03-17 15:35 ` Peter Grandi
2012-03-17 15:35 ` Peter Grandi
2012-03-17 21:39 ` raid10n2/xfs setup guidance on write-cache/barrier (GiB alignment) Zdenek Kaspar
2012-03-17 21:39 ` Zdenek Kaspar
2012-03-18 0:08 ` Peter Grandi
2012-03-18 0:08 ` Peter Grandi
2012-03-26 19:50 ` raid10n2/xfs setup guidance on write-cache/barrier Martin Steigerwald
2012-03-17 4:21 ` NOW:Peter goading Dave over delaylog - WAS: " Stan Hoeppner
2012-03-17 22:34 ` Dave Chinner
2012-03-18 2:09 ` Peter Grandi
2012-03-18 2:09 ` Peter Grandi
2012-03-18 11:25 ` Peter Grandi
2012-03-18 11:25 ` Peter Grandi
2012-03-18 14:00 ` Christoph Hellwig
2012-03-18 14:00 ` Christoph Hellwig
2012-03-18 19:17 ` Peter Grandi
2012-03-18 19:17 ` Peter Grandi
2012-03-19 9:07 ` Stan Hoeppner
2012-03-19 9:07 ` Stan Hoeppner
2012-03-20 12:34 ` Jessie Evangelista
2012-03-20 12:34 ` Jessie Evangelista
2012-03-18 18:08 ` Stan Hoeppner
2012-03-18 18:08 ` Stan Hoeppner
2012-03-22 21:26 ` Peter Grandi
2012-03-22 21:26 ` Peter Grandi
2012-03-23 5:10 ` Stan Hoeppner
2012-03-23 5:10 ` Stan Hoeppner
2012-03-23 22:48 ` Martin Steigerwald
2012-03-24 1:27 ` Peter Grandi
2012-03-24 16:27 ` GNU 'tar', Schilling's 'tar', write-cache/barrier Peter Grandi
2012-03-24 17:11 ` Brian Candler
2012-03-24 18:35 ` Peter Grandi
2012-03-16 12:25 ` raid10n2/xfs setup guidance on write-cache/barrier Stan Hoeppner
2012-03-16 18:01 ` Jon Nelson
2012-03-16 18:03 ` Jon Nelson
2012-03-16 19:28 ` Peter Grandi
2012-03-16 19:28 ` Peter Grandi
2012-03-17 0:02 ` Stan Hoeppner
2012-03-17 0:02 ` Stan Hoeppner
2012-03-17 22:10 ` Zdenek Kaspar
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