Backup Exec communicates with the Web servers that participate in SharePoint server farms to discover the farm topology. This process may take some time if Backup Exec attempts to communicate with a Web server that is unavailable. If you know that a particular Web server in a farm will be unavailable for a period of time, you can disable the communication between the Web server and Backup Exec.
To disable or enable communication between a Web server and Backup Exec
In the selection tree, right-click Microsoft SharePoint Server Farms, and then click Manage Server Farms.
Select the farm that contains the Web server you want to disable or enable, and then click Properties.
To prevent Backup Exec from communicating with a Web server, clear the check box next to that Web server's name. If the Web server is now available to communicate with Backup Exec, select the check box next to the Web server's name.
When you disable communication with a Web server, Backup Exec removes the name of that Web server from the server farm name under the Microsoft SharePoint Server Farms node.