Isolation of management data for security and operational advantages

A method comprises:

• managing, by a first set of management units of a first dispersed storage network (DSN) system of a multi-system DSN, a first set of configuration data of the first DSN system, wherein the first DSN system includes a first plurality of storage units, a first plurality of dispersed storage (DS) processing units and the first set of management units;
• managing, by a second set of management units of a second DSN system of the multi-system DSN, a second set of configuration data of the second DSN system, wherein the second DSN system includes a second plurality of storage units, a second plurality of dispersed storage (DS) processing units and the second set of management units, wherein a first management unit of the second set of management units operates by:
• managing, when in a first mode, at least a first configuration data of the first set of configuration data;
• managing, when in a second mode, at least a first configuration data of the second set of configuration data;
• and
• managing, when in a third mode, at least the first configuration data of the first and second sets of configuration data.