If necessary, before you physically override the media server, move the media to a library that is attached to the new media server. Then update the Enterprise Media Manager database to reflect the move.
After you perform the restore, reverse the NetBackup configuration changes by removing the alternate server entry from the Media Host Override list. The original server performs the NetBackup backup and restore requests again.
On UNIX and Linux systems, when you configure this option, it sets the FORCE_RESTORE_MEDIA_SERVER parameter in the bp.conf file.
To override the original server for restores manually
In the NetBackup Administration Console , open the General Server host properties for the master server.
Add an entry in the Media Host Override list; name the original backup server and the restore server. Click OK.
Stop and restart the NetBackup Request Manager daemon or service on the master server.