> >> >> We call that a "mirror" :-) > >> >> > >> > > >> > Mirror and raidz suffer from the classic blockdevice abstraction > >> > problem in that they need disks of equal size. > >> > >> Not that I'm aware of. Mirror and raid-z will simply use the smallest > >> size of your available disks. > >> > > > > Exactly. The rest is not usable. > > Well I don't understand how you suggest to use it if you want redundancy.
Well it is possible if you 'slice' the disks up as Tuomas suggested previously (or do something slightly cleverer -- though equivalent -- under the hood). See my recent most on zfs-code: http://mail.opensolaris.org/pipermail/zfs-code/2007-August/000583.html . I made this work as a university project, though as it currently stands you can't replace disks with my implementation -- which I'm hoping to solve, along with adding disks to the RAID-Z, when I get some more free time. Sadly it's not going to come immediately as I'm now working full time but certainly a fun project as the ZFS guys have higher priority items on their list. James _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
