Symantec NETBACKUP 7 - Manual (Page 59)

To add a load balancing server
1 In the NetBackup Administration Console, expand Media and Device
Management > Credentials > Storage Server
2 Select the deduplication storage server.
3 On the Edit, select Change.
4 In the Change Storage Server dialog box, select the Media Servers tab
(Windows) or the Login Credentials tab (UNIX).
5 Select the media server or servers that you want to use as a load balancing
server. It must be a supported host.
The media servers that are checked are configured as load balancing servers.
6 Click OK.
7 For all storage units in which Only use the following media servers is
configured, ensure that the new load balancing server is selected.
59 Configuring deduplication
Adding a load balancing server