In a Geographic Redundancy system, the administrator can select to unmanage an element. Then, the system sends a notification to the element whose manageability status you must change. On receiving the notification, the element unmanages from the current System Manager.
At any time, you can perform the Get Current Status, Manage, or Unmanage operation.
In a specific split network scenario, the primary System Manager server fails to communicate with the secondary System Manager server, but the element can communicate with both System Manager systems. If the primary System Manager server manages the element and the administrator wants to manage the element from the secondary System Manager server, the administrator must set the manageability status to Unmanaged on the primary System Manager server.