Disaster recovery for Backup Exec 12.5

We have Symantec Backup Exec 12.5 Rev. 2213 installed on Windows Server 2003 R2 with SQL & files backup jobs defined.
The destination for backup jobs is NAS device. Was wandering what happens if server running Symantec Backup Exec fails completely and we have only files on NAS device available. How would we restore then?

Regards,
Drazen