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 (Cluster V6.3A, #9). 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 (Cluster V6.3A, #26).
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 (Cluster V6.3A, #29).