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Date:      Wed, 17 Jan 2007 10:39:36 +0000
From:      Josef Karthauser <joe@FreeBSD.org>
To:        stable@freebsd.org, fs@freebsd.org
Subject:   gmirror disks vs partitions
Message-ID:  <20070117103935.GC4018@genius.tao.org.uk>

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A poll for opinions if I may?

I've got a few gmirrors running on various machines, all of which
pair up two drives at the physical level (i.e. mirror /dev/ad0s1
with /dev/ad1s1).  Of course there are other ways of doing it to,
like mirroring at the partition level, ie pairing /dev/ad0s1a with
/dev/ad1s1a, /dev/ad0s1e with /dev/ad0s1e, etc.

Apart from potentially avoiding a whole disk from being copied
during a resync after a crash, are there any other advantages to
using partition level mirroring instead of drive level mirroring?

Joe
--=20
=3D=3D=3D Josef Karthauser (joe@tao.org.uk) =3D=3D=3D http://x2obuilder.com=
/tao =3D=3D=3D

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