About multiple NetBackup master servers
For a large site, use multiple NetBackup master servers to optimize the backup loads. Divide the clients between the servers as necessary.
Figure: Multiple master server scenario shows a multiple-server configuration where the two sets of networks (A1/A2 and B1/B2) each have enough clients to justify separate servers.
In this environment, the two NetBackup server configurations are completely independent. You can also create a configuration where one server is the master and the other is a media server.