On Fri, Aug 28, 2009 at 11:22 PM, Ty Newton<ty.new...@copperchipgames.com> wrote: > Hi, > I've read a few articles about the lack of 'simple' raidz pool expansion > capability in ZFS. I am interested in having a go at developing this > functionality. Is anyone working on this at the moment? > > I'll explain what I am proposing. As mentioned in many forums, the concept > is really simple: allow a raidz pool to grow by adding one or more disks to > an existing pool. My intended user group is the consumer market, as opposed > to the enterprise, so I expect I'll put some rather strict limitations on > how/when this functionality will operate: to make the first implementation > more achievable. > > The use case I will try and solve first is, what I see as, the simplest. I > have a raidz pool configured with 1 file system on top; no snapshots. I want > to add an additional disk (must be at least the same size as the rest of the > disks in the pool). I don't mind if there is some downtime. I want all my > data to take advantage of the additional disk.
Have you looked at the 'add' section of the zpool manpage? You can add another vdev, provided it provides similar parity, something like: zpool add data raidz2 c4t14d0 c4t15d0 c5t12d0 c5t13d0 c5t14d0 which I did a few weeks ago. Here, I had a raidz2 pool called 'data' made up of 5 disks. I added another 5 disks also configured as raidz2 with this command. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
