If you have not done so already, launch the Double-Take Availability Application Manager by selecting Start, Programs, Double-Take, Availability, Double-Take Availability Application Manager.
If you are using a standalone BlackBerry server with Exchange or SQL, complete the following steps so that the BlackBerry server will recognize when the server that has the BESAdmin account has been failed over.
This command will prompt you for the name of the BlackBerry server.
The same process should be followed when failing back.