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Date: Sat, 15 May 2010 18:44:24 -0500 (CDT)
From: Bob Friesenhahn <bfriesen@simple.dallas.tx.us>
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To: Kaya Saman <SamanKaya@netscape.net>
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Cc: freebsd-fs@freebsd.org
Subject: Re: Quick ZFS mirroring question for non-mirrored pool
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On Sun, 16 May 2010, Kaya Saman wrote:
>
> if it's possible to add a mirror to a non-mirrored pool??

Yes.  In a simple load-shared pool, individual disk vdevs on the pool 
can easily be turned into mirror vdevs.  Later you can convert back to 
simplex if you like.  This means that you can create the simple 
load-shared pool and add redundancy later.  I have done this before.

Just make sure to read the documentation so that you add the mirror 
disk correctly.

Bob
-- 
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/