Backup-exec in a Disaster Recovery

Doing some planning here and trying to figure out the process for the following scenario.
 

we have a backupexec 2012 running right now we backup the Database and the whole install folder for the catalouges etc.

Say in a fire we lose that whole server so we get a new one in and install backupexec how do I get that info back from tape so that I can start restoring other servers?

Thanks