MySQL Cluster Manager 8.4.6 User Manual
list clusters site_name
        This command lists all clusters defined for a given management
        site named site_name, together with
        the package used by each cluster. For example, the command shown
        here displays a list of all clusters defined for the site named
        mysite:
      
mcm> list clusters mysite;
+------------------+----------+
| Cluster          | Package  |
+------------------+----------+
| mycluster        | m-7.1.26 |
| yourcluster      | y-7.1.26 |
| someothercluster | s-7.2.9  |
+------------------+----------+
3 rows in set (2.07 sec)
        If site_name is omitted, the command
        fails with an error, as shown here:
      
mcm> list clusters;
ERROR 6 (00MGR): Illegal number of operands