Date: Mon, 9 Jun 2014 15:44:45 +0100 From: Martin Simmons <martin@lispworks.com> To: freebsd-fs@freebsd.org Subject: Re: Is ZFS Multi-vdev root pool configuration discovery =?UTF-8?Q?supported=3F?= Message-ID: <201406091444.s59Eijuh032276@higson.cam.lispworks.com> In-Reply-To: <c82d35ca9aa36cffd8756f853f330d8f@thebighonker.lerctr.org> (message from Larry Rosenman on Mon, 09 Jun 2014 07:48:04 -0500) References: <201406061624.s56GOOx7015821@higson.cam.lispworks.com> <53932846.20806@FreeBSD.org> <201406091243.s59Ch55n026817@higson.cam.lispworks.com> <c82d35ca9aa36cffd8756f853f330d8f@thebighonker.lerctr.org>
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>>>>> On Mon, 09 Jun 2014 07:48:04 -0500, Larry Rosenman said: > > On 2014-06-09 07:43, Martin Simmons wrote: > >>>>>> On Sat, 07 Jun 2014 17:57:10 +0300, Andriy Gapon said: > >> > >> on 06/06/2014 19:24 Martin Simmons said the following: > >> > Hi, > >> > > >> > Does anyone know if FreeBSD 9.2 (or indeed head) supports "Root On ZFS" with a > >> > multi-vdev pool (e.g. 4 disks configured as two mirrored pairs)? > >> > > >> > Looking at the source, sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c > >> > contains the comment: > >> > > >> > /* > >> > * Multi-vdev root pool configuration discovery is not supported yet. > >> > */ > >> > > >> > but the code below it from r243502 suggests that this is no longer true. > >> > >> This is a stale comment, it must be removed. > > > > Thanks, that's good to know. > > For the record I've been booting off a 6-disk raidZ1 pool for a LONG > time. > > I have boot code on all 6 disks, and can rearrange them at will and boot > off any of them. OK, but that sounds like a configuration with a single vdev. I was asking about something like RAID10 with muliple top level vdevs. __Martin
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