Date: Wed, 24 Oct 2007 10:30:53 -0600 From: Scott Long <scottl@samsco.org> To: Attila Nagy <bra@fsn.hu> Cc: freebsd-fs@freebsd.org Subject: Re: ZFS and disk naming change (ex. da0->da4) Message-ID: <471F733D.30706@samsco.org> In-Reply-To: <471F5B46.9050106@fsn.hu> References: <471F5B46.9050106@fsn.hu>
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Attila Nagy wrote: > Hello, > > I have an experimental (but that does not mean, I wouldn't like to get > my data back :) zpool, which was created with something like this: > zpool create people raidz2 /dev/da0 /dev/da3 /dev/da4, etc > > The problem is those device names have been changed during the next > reboot (the cause of this is irrelevant, but mainly because some of them > were not attached at the original boot, just later, so at the next > reboot the disks came up in a different order), so now I have: > zpool status > pool: people > state: UNAVAIL > status: One or more devices could not be opened. There are insufficient > replicas for the pool to continue functioning. > action: Attach the missing device and online it using 'zpool online'. > see: http://www.sun.com/msg/ZFS-8000-D3 > scrub: none requested > config: > > NAME STATE READ WRITE CKSUM > people UNAVAIL 0 0 0 insufficient replicas > raidz2 UNAVAIL 0 0 0 insufficient replicas > da0 UNAVAIL 0 0 0 cannot open > da3 ONLINE 0 0 0 > da4 FAULTED 0 0 0 corrupted data > da5 FAULTED 0 0 0 corrupted data > da6 FAULTED 0 0 0 corrupted data > da7 FAULTED 0 0 0 corrupted data > da8 FAULTED 0 0 0 corrupted data > da9 FAULTED 0 0 0 corrupted data > > (it seems da3 is still da3 :) > > My question is: what now? Is it possible to regain the pool, or is it > totally busted now? I am not sure that I can figure out which device is > which now... > > I've only played with ZFS on Solaris with FC targets, and there I've > never faced this problem, because of the static naming. > > ps: I guess next time I will use glabel -I love that- to provide base > devices... > > Thanks, > Read in /sys/conf/NOTES about "wiring" SCSI device names. Scott
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