From owner-freebsd-stable@FreeBSD.ORG  Wed Oct 25 10:39:06 2006
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Date: Wed, 25 Oct 2006 12:39:05 +0200
From: Guido van Rooij <guido@gvr.org>
To: Rink Springer <rink@FreeBSD.org>
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Cc: freebsd-stable@freebsd.org
Subject: Re: Gmirror question
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On Wed, Oct 25, 2006 at 12:18:01PM +0200, Rink Springer wrote:
> On Wed, Oct 25, 2006 at 12:07:59PM +0200, Guido van Rooij wrote:
> > Is it possible to use gmirror to mirror a single BSD partition?
> > If not: is it possible with other tools?
> 
> I think this is possible, have you tried (inspired by man gmirror)
> 
> # gmirror label -v -b split -s 2048 data da0s1a da1s1a da2s1a
> 
> It's been a while since I last used this; but I believe it will work.

The problem is that gmirror stores its label in the last sector of the
partition. I do not know how to reserve that space with newfs.

-Guido