> On 16 Oct 2006, at 14:30, Bill Sommerfeld wrote: > > On Sun, 2006-10-15 at 20:54 -0700, Matthew Ahrens wrote: > >> Frank Cusack wrote: > >>> Someone said being able to add devices to a raidz vdev is on the > >>> todo list. > >> > >> Don't hold your breath. This isn't being worked on, or on > >> anyone's todo > >> list at this point, and implementing it would be pretty nontrivial. > > > > on the other hand, the source code is out there, so anyone > > sufficiently > > motivated can can start working on it now... > > Funny you should say that... I've been following the OpenSolaris/ZFS > story with some interest as a basis for a final year computer science > project. ZFS seems unique in its integration of RAID at the fs layer > (and it's open source :) !). My proposal is in its final stages now, > and this is one of the items I hope to be addressing.
The hard part seems to be how to deal with fragmentation of available space. Adding one disk to a full vdev wouldn't give you much space. > In particular the project centres around creating redundant arrays > out of mismatched disks. The ability to to dynamically grow/shrink > the array vdev is the second focus (again with disks of not > necessarily the same size). Shrinking the vdevs requires moving data. Once you move data, you've got to either invalidate the snapshots or update them. I think that will be one of the more difficult parts. -- Darren Dunham [EMAIL PROTECTED] Senior Technical Consultant TAOS http://www.taos.com/ Got some Dr Pepper? San Francisco, CA bay area < This line left intentionally blank to confuse you. > _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
