There is a way that involves pausing all the source LUNs being mirrored (basically shutting down the hosts so no writes are send to the source luns). The fracturing the mirrors (releasing the RLP). Removing the RLP, adding in the new ones, then re-creating the mirrors using the same source and dest. LUNs exactly and do not do an initial sync. Once the mirrors are back up (they should still be in-sync at that point), then bring the hosts back up.  This is  not a supported operation, but others have used this in the past and it's worked. You just want to be real careful - the worst case is you would need to do a full sync. The idea is that you're flushing all the writes from the hosts to the mirrors, then stopping the hosts. At that point with no more writes, the mirrors should be in-sync when you fracture.  Others may chime in on this - I know some here may have done this.  glen
We just upgraded out NS-120 to NS-480 and now we have more space. In reorganizing the storage, I need to free up some disks that are used for Reserved Pool LUNs. The Reserved LUNs can't be migrated, so the question is: "Is there any way to migrate/delete the LUNs used by MirrorView/A without redoing the whole mirroring?"  Kristofer
Freeing up disks used for Reseved Pool LUNs?