Date: Wed, 22 Jul 2009 11:41:09 -0700 From: Freddie Cash <fjwcash@gmail.com> To: freebsd-current@freebsd.org Subject: Re: ZFS pool corrupted on upgrade of -current (probably sata renaming) Message-ID: <b269bc570907221141r5c251ab9w17d5253904740984@mail.gmail.com> In-Reply-To: <ccf532286abd59ce4c3bc64cc26353ab.squirrel@cygnus.homeunix.com> References: <alpine.BSF.2.00.0907132009040.2027@teapot.cbhnet> <alpine.BSF.2.00.0907142318520.2686@teapot.cbhnet> <b269bc570907141550u6854bc8eh6ea73fe9bd3e788a@mail.gmail.com> <m21voi1ufz.wl%randy@psg.com> <b269bc570907150922l3ded8a76id12ea72801abb3c7@mail.gmail.com> <ccf532286abd59ce4c3bc64cc26353ab.squirrel@cygnus.homeunix.com>
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On Wed, Jul 22, 2009 at 6:12 AM, Nenhum_de_Nos <matheus@eternamente.info>wrote: > > On Wed, July 15, 2009 13:22, Freddie Cash wrote: > > On Tue, Jul 14, 2009 at 8:44 PM, Randy Bush <randy@psg.com> wrote: > > > >> > # glabel label disk01 /dev/ad4 > >> > # glabel label disk02 /dev/ad6 > >> > # glabel label disk03 /dev/ad8 > >> > # zpool create pool raidz1 label/disk01 label/disk02 label/disk03 > >> > > >> > After that, you can shuffle the drives around in the system, and the > >> pool > >> > will continue to work correctly. > >> > >> ooooooo! i wish i had understood that when i built a large set of > >> mirrored raid. > >> > >> any way to hack it ex post facto? > >> > > > > Yep. It's as simple as: > > > > * label all the drives using glabel, while they're still attached to > the > > pool > > * use "zpool replace pool ad4 label/disk01" to replace 1 drive > > * wait for it to resilver > > * use "zpool replace pool ad6 label/disk02" to replace the next drive > > * repeat the resilver and replace until all the devices are replaced > > > > This is what I did to one of our servers. Works quite nicely. > > > > There's no need to detach anything. > > was all this supposed to work with raidz ? > > here it doesn't. > > harry# zpool status > pool: zdados > state: ONLINE > scrub: none requested > config: > > NAME STATE READ WRITE CKSUM > zdados ONLINE 0 0 0 > raidz1 ONLINE 0 0 0 > ad8 ONLINE 0 0 0 > ad10 ONLINE 0 0 0 > ad12 ONLINE 0 0 0 > > errors: No known data errors > harry# zpool detach zdados ad8 > cannot detach ad8: only applicable to mirror and replacing vdevs > Reread what you quoted. :) Note how there's no "detach" step. :) Just label and replace. -- Freddie Cash fjwcash@gmail.com
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