System Management
When you perform an Add System on a system or replication, the system being added must have previously granted the managing system or replication remote access privilege using the Allow Remote Management button at the bottom of the Replication->System Management screen. When you select Allow Remote Management a list of any systems or replications for whom you have already granted remote access will be displayed. You should enter the hostname of the system or replication being allowed to manage this system in the "Hostname" field.
When a system is deleted from either another manager system or a replication, the rights of the managing system are automatically revoked. To re-add this system, you must allow access again using Allow Remote Management. There may also arise circumstances in which you wish to explicitly revoke this privilege while logged into the managed system, and you use Revoke Remote Management in this situation (this step is usually never performed). You do not need to do this before deleting a system. This action is only performed when the system user wishes for whatever reason to no longer be managed by the other system or replication.