Date: Fri, 6 Mar 2009 06:26:52 -0800 (PST) From: Peter Steele <psteele@maxiscale.com> To: Jilles Tjoelker <jilles@stack.nl> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: How to tear down a geom mirror? Message-ID: <4159914.261236349612218.JavaMail.HALO$@halo> In-Reply-To: <20090306140850.GA62926@stack.nl>
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>gmirror and various other geom modules store their metadata on the last >sector(s) of the drive, so you need to wipe that too. In our case the systems we are using aren't mirroring the whole drive, just certain slices. Some systems have a single slice mirrored (plus an unmirrored slice), and others have two slices mirrored (plus a third unmirrored slice). I need a way to destroy the existing mirrors, without doing a gmirror load, and ultimately without making any assumptions about the number or condition of mirrored slices on the drives I am about to install a new OS onto.
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