Can anybody help me get this pool online. During my testing I''ve been removing and re-attaching disks regularly, and it appears that I''ve attached a disk that used to be part of the pool, but that doesn''t contain up to date data. Since I''ve used the same pool name a number of times, it''s possible that the disk I attached has never contained data relevant to this pool, which would explain the corrupted data error. Going by the previous name, the disk would also have been a member of the third mirror set, not the first. What I would like to do is remove the disk containing corrupt data, and then wipe and re-attach it properly. However, the zpool detach command is failing with the error: "cannot open ''rc-pool'': pool is unavailable Any suggestions as to how I can fix this? Preferably without removing the disk as that tends to hang the server... # zpool status pool: rc-pool state: UNAVAIL status: One or more devices could not be opened. There are insufficient replicas for the pool to continue functioning. action: Attach the missing device and online it using ''zpool online''. see: http://www.sun.com/msg/ZFS-8000-3C scrub: none requested config: NAME STATE READ WRITE CKSUM rc-pool UNAVAIL 0 0 0 insufficient replicas mirror UNAVAIL 0 0 0 corrupted data c1t1d0 ONLINE 0 0 0 8443716419433342693 ONLINE 0 0 0 was /dev/dsk/c1t4d0s0 c1t2d0 ONLINE 0 0 0 mirror ONLINE 0 0 0 c1t3d0 ONLINE 0 0 0 c2t2d0 ONLINE 0 0 0 mirror ONLINE 0 0 0 c2t3d0 ONLINE 0 0 0 c1t5d0 ONLINE 0 0 0 mirror ONLINE 0 0 0 c2t4d0 ONLINE 0 0 0 c1t6d0 ONLINE 0 0 0 c2t5d0 ONLINE 0 0 0 mirror ONLINE 0 0 0 c1t7d0 ONLINE 0 0 0 c2t6d0 ONLINE 0 0 0 c2t7d0 ONLINE 0 0 0 # zpool detach rc-pool 8443716419433342693s0 cannot open ''rc-pool'': pool is unavailable This message posted from opensolaris.org