linux-kernel - Re: Out-of-order writing by disk drives

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Message-ID: <87r5zv72cl.fsf@basil.nowhere.org>
Date:	Tue, 14 Apr 2009 16:10:34 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	anton@...s.complang.tuwien.ac.at
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Out-of-order writing by disk drives

"Anton Ertl" <anton@...s.complang.tuwien.ac.at> writes:
>
> /dev/md2        /home           ext3    defaults,barrier=1      1	2

Just make sure /dev/md2 is a RAID1, MD RAID0/5/10 don't support barriers.

See also my general treatise of multiple device barriers earlier today.

-Andi
-- 
ak@...ux.intel.com -- Speaking for myself only.
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