Well a few things, if you don't have a backup already don't go any further.
Your just asking for tears of anguish.
This procedure to do what your asking has been around almost since the
beginning of ZFS, a little Googling can find the steps. I suggest anything with
the name Oracle at the top of the page.
You say 2 mirrors, do you mean they are stripped together? How did your
original creation command look? To receive aid, you need to be detailed in
asking as you could get advice based on assumption that will have you back to
the tears thing....
Are you looking for speed, security, redundancy? Because 2 drives mirrored and
striped across 2 more drives mirrored is pretty safe and can be grown by
another 2 drives and repeated. In fact I usually encourage this for most people
rather than RaidZ2 (something you cannot alter after creation).
Sent from my iPad
> On Nov 3, 2014, at 7:25 AM, Robert Rehnmark <xcar...@gmail.com> wrote:
> So I have decided to get an LSI SAS/SATA 8 port raid card for my hackintosh
> and change my pool from…
> 2 mirrors of 2x3TB Seagate Barracuda (4 drives) —TO—> 1 RaidZ2 of 6x3TB
> Seagate Barracuda
> My intention is to set up a complete backup of the whole pool also but since
> that is not done yet I can’t juggle the data that way.
> Are there ANY options other than creating the raidz2 in a new pool,
> transferring all the data and then scrapping the old pool?
> Can I clone the pool with settings, filesystems, mountpoints and all onto a
> new pool?
> Can I mirror the old pool with the raidz and then scrap the old part of the
> mirror? This sounds dangerous though, making a vdev containing other vdevs..
> (if even possible)
> Thanks in advance for any advice.
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