If the EMM server is not running when you install a media server, the media server is not registered. You cannot discover, configure, and manage the devices of that media server. You must register the media server with the EMM server.
To register a media server
On the EMM server host, run the following command (for the hostname, use the host name of the media server):
nbemmcmd -addhost -machinename hostname -machinetype media -masterserver server_name -operatingsystem os_type-netbackupversion level.major_level.minor_level
To avoid problems with NetBackup, ensure that the host name that is used in NetBackup matches the host name in the TCP/IP configuration.