On Mon, 08 Oct 2012 17:29:46 +0200
Matthias Fechner <ide...@fechner.net> wrote:
> Dear list,
>
> I installed a freebsd with freebsd on a zfs root and only one disk:
> pool: zroot
> state: ONLINE
> scan: none requested
> config:
>
> NAME STATE READ WRITE CKSUM
> zroot ONLINE 0 0 0
> ada0p3 ONLINE 0 0 0
>
> This disk was now insterted into the computer and boots fine.
> The next step I wanted was to setup a mirror with a second disk.
>
> So I inserted a second disk, configured everything with gpart and added
> the disk to the zroot with:
> zpool add zroot gpt/disk1
> (I think I had to execute zpool add zroot mirror gpt/disk1, this is not
> clear from the man page)
You need add for a stripe and attach for a mirror.
> And now I have a problem, it seems not to be a mirror but a stripe:
> NAME STATE READ WRITE CKSUM
> zroot ONLINE 0 0 0
> ada0p3 ONLINE 0 0 0
> gpt/disk1 ONLINE 0 0 0
>
> Is there any chance to get it into a mirror?
>
> I don't think there was anything written to the second disk but I cannot
> remove it anymore.
Yep once you've added a stripe there's no way to remove it. You'll
have to copy the data off somewhere and then rebuild the pool.
--
Steve O'Hara-Smith <at...@sohara.org>
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