Date: Mon, 8 Oct 2012 17:26:50 +0100 From: Steve O'Hara-Smith <ateve@sohara.org> To: Matthias Fechner <idefix@fechner.net> Cc: freebsd-questions@freebsd.org Subject: Re: ZFS and zpool mistake Message-ID: <20121008172650.04011d5a18d710af8d1f23b0@sohara.org> In-Reply-To: <5072F16A.70505@fechner.net> References: <5072F16A.70505@fechner.net>
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On Mon, 08 Oct 2012 17:29:46 +0200 Matthias Fechner <idefix@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 <ateve@sohara.org>
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