Decommissioning a Netbackup 7.5 server with Backup Exec installed on it.

We are decommissioning a Netbackup 7.5 server with Backup Exec installed on it.We have a new Netbackup server in production and will decommission the old one. For restoring from older BE tapes we will be installing Backup Exec on the new server as well.

Is there any care that needs to be taken with Backup Exec before decommission the old Newtbackup server?