The cluster states are summarized by the SEM in the dashboard tile „Cluster“:
In the list view of the dashboard the Management Cluster and the SU Cluster are differentiated: 
The cluster overview main window is linked in the dashboard and contains the overview of all clusters and their states: 
The main windows for the Management Cluster contains only displays and is described in the chapter -> SEM main window for Management Cluster. The central management (as a cluster function) is implemented in the whole SEM.
Aside from displays, the main window for the SU Cluster contains also the action to activate/deactivate the SU Cluster and is described in chapter -> SEM main window for SU Cluster.
The SU Cluster function LM (Live Migration) can be found in the SEM main window "Operation" for the individual BS2000 systems and is described in chapter -> Operating the LM through the SE Manager.