Jim Klimov wrote:
> Is it possible to create a (degraded) zpool with placeholders specified
> instead
> of actual disks (parity or mirrors)? This is possible in linux mdadm
> ("missing"
> keyword), so I kinda hoped this can be done in Solaris, but didn't manage to.
>
> Usecase scenario:
>
> I have a single server (or home workstation) with 4 HDD bays, sold with 2
> drives.
> Initially the system was set up with a ZFS mirror for data slices. Now we got
> 2
> more drives and want to replace the mirror with a larger RAIDZ2 set (say I
> don't
> want a RAID10 which is trivial to make).
>
> Technically I think that it should be possible to force creation of a degraded
> raidz2 array with two actual drives and two missing drives. Then I'd copy data
> from the old mirror pool to the new degraded raidz2 pool (zfs send | zfs
> recv),
> destroy the mirror pool and attach its two drives to "repair" the raidz2 pool.
>
> While obviously not an "enterprise" approach, this is useful while expanding
> home systems when I don't have a spare tape backup to dump my files on it
> and restore afterwards.
>
I would say it is definitely not a recommended approach for those who
love their data, whether "enterprise" or not. But my opinion is really a
result of our environment at Sun (or any systems vendor). Being here
blinds us to some opportunities. Please file an RFE at
http://bugs.opensolaris.org
-- richard
_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
