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Date: Fri, 15 May 2015 20:48:26 -0500
From: CyberLeo Kitsana <cyberleo@cyberleo.net>
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To: Anders Jensen-Waud <anders@jensenwaud.com>
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Subject: Re: ZFS stripe to raidz1
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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.

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