From owner-freebsd-fs@FreeBSD.ORG  Mon Dec 10 21:50:08 2007
Return-Path: <owner-freebsd-fs@FreeBSD.ORG>
Delivered-To: freebsd-fs@FreeBSD.ORG
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 0866116A468
	for <freebsd-fs@FreeBSD.ORG>; Mon, 10 Dec 2007 21:50:08 +0000 (UTC)
	(envelope-from das@FreeBSD.ORG)
Received: from VARK.MIT.EDU (VARK.MIT.EDU [18.95.3.179])
	by mx1.freebsd.org (Postfix) with ESMTP id A421E13C45D
	for <freebsd-fs@FreeBSD.ORG>; Mon, 10 Dec 2007 21:50:07 +0000 (UTC)
	(envelope-from das@FreeBSD.ORG)
Received: from VARK.MIT.EDU (localhost [127.0.0.1])
	by VARK.MIT.EDU (8.14.2/8.14.1) with ESMTP id lBALnanC016663;
	Mon, 10 Dec 2007 16:49:36 -0500 (EST) (envelope-from das@FreeBSD.ORG)
Received: (from das@localhost)
	by VARK.MIT.EDU (8.14.2/8.14.1/Submit) id lBALnaaf016662;
	Mon, 10 Dec 2007 16:49:36 -0500 (EST) (envelope-from das@FreeBSD.ORG)
Date: Mon, 10 Dec 2007 16:49:36 -0500
From: David Schultz <das@FreeBSD.ORG>
To: David Cecil <david.cecil@nokia.com>
Message-ID: <20071210214936.GA16598@VARK.MIT.EDU>
Mail-Followup-To: David Cecil <david.cecil@nokia.com>, freebsd-fs@FreeBSD.ORG
References: <20071210201734.GA16012@VARK.MIT.EDU> <475DAF79.9080900@nokia.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <475DAF79.9080900@nokia.com>
Cc: freebsd-fs@FreeBSD.ORG
Subject: Re: RAID 1 via ataraid(4)
X-BeenThere: freebsd-fs@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Filesystems <freebsd-fs.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
	<mailto:freebsd-fs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-fs>
List-Post: <mailto:freebsd-fs@freebsd.org>
List-Help: <mailto:freebsd-fs-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
	<mailto:freebsd-fs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 10 Dec 2007 21:50:08 -0000

On Tue, Dec 11, 2007, David Cecil wrote:
> Hi David,
> 
> there's no reason you can't mirror the rootfs using gmirror.  We do it 
> all the time.

Good point, thanks. I'd forgotten that gmirror stores its metadata
at the end of the drive instead of at the beginning as ccd does.
Nevertheless, I'd be interested in what people's experiences have
been with ataraid(4), particularly since it's more flexible in
terms of putting multiple operating systems on different
partitions of the same mirror.