He means Notication Server not Netbackup.
Almost all of your data resides inside of the database in a NS environment. What you have to worry about is your packages, update packages mainly. Record all of your current locations that are configured, migrate them to the new server BEFORE you start the NS services under the new installation. That should pretty much do the trick. Also keep in mind any custom connector rules or reports will not migrate with the database, so export these before hand.