CMMVC1091E The command failed because the number of volumes on this system exceeds the limit supported by Remote Copy.
Explanation
The system has a limit on the number of volumes that can be supported with the Remote Copy. If the number of volumes in the system exceed this limit, Remote Copy relationship cannot be added on this system.
User response
Retry creating relationship after volumes on the local system have reduced below the maximum volume limit supported for the Remote Copy.