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Date:      Fri, 15 May 2015 20:48:26 -0500
From:      CyberLeo Kitsana <cyberleo@cyberleo.net>
To:        Anders Jensen-Waud <anders@jensenwaud.com>
Cc:        "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org>
Subject:   Re: ZFS stripe to raidz1
Message-ID:  <5556A1EA.20803@cyberleo.net>
In-Reply-To: <CALvn0yg2QGz7h4ax3Kz7+zSwP2ZV+-tpTv6_TeCKKb+okYfovg@mail.gmail.com>
References:  <8F1341A6-AA91-418D-97EA-FF7F8AC07F6A@jensenwaud.com> <555350E0.5060705@gmail.com> <CALvn0yg2QGz7h4ax3Kz7+zSwP2ZV+-tpTv6_TeCKKb+okYfovg@mail.gmail.com>

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On 05/13/2015 08:23 PM, Anders Jensen-Waud wrote:
> I am thinking of just mirroring the two disks at the moment and then adding
> 2 x 2TB later (in a second mirror vdev), and stripe the two vdevs. Is that
> possible without having to rebuild the entire array?

This is possible, with a caveat: ZFS will not move data that already exists.

When you add the second vdev, only data written from that point on will
be striped; the data that was there previously will remain only on the
original disks until deleted.

-- 
Fuzzy love,
-CyberLeo
Technical Administrator
CyberLeo.Net Webhosting
http://www.CyberLeo.Net
<CyberLeo@CyberLeo.Net>

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