CMMVC9073E The host cluster mapping was not created because this volume is mapped to one of the hosts in the host cluster with a different SCSI LUN.
Explanation
An incompatible SCSI LUN ID was specified for the mapping. Hosts within the host cluster have private mappings to volumes with this SCSI LUN.
User response
Retry the command and specify a compatible SCSI LUN ID, that is, an ID that is not in use for private mappings.