I have a problem with some FC lun that from some reason when I tried to add it as SD I got: Are you sure? This operation might be unrecoverable and destructive! The following LUNs are already in use - 3600a09803830447a4f244c465759506a Approve operation after I check the "approve operation" I got: Operation Canceled Error while executing action New SAN Storage Domain: Cannot create Volume Group Do you have any suggestions on how to clean it to be able to add it to the engine?