I intended to add a disk as a hot spare to a zpool but inadvertently added as an equal partner of the entire pool. i.e. zpool add ataarchive c1t1d0 instead of zpool add ataarchive spare c1t1d0 This is a zpool on an X4500 with 4 raidz2''s configured. From my reading of previous threads, the ZFS FAQ and the wikipedia entry, it looks as though the only way I can remove the disk now is to destroy the zpool and then rebuild it. Is this still the case until Nevada b77? - Colby "never type anything at 4am without the benefit of stimulants" Gutierrez-Kraybill This message posted from opensolaris.org