Barcodes rules after re-install

Hi all

I 've a doubt about NetBackup

Maybe i need to reinstall my machine (server) with NetBackup 7.6

I know (this simple method...i don't know if there are another one), for the policies, that is possible to backup it by creating a .TAR file of policies under /opt/openv/netbackup/db/class/ and after extract in the reinstalled server

But the question now is: 

If i would re-create the current  tape pool (barcodes) after re-installation of NetBackup ?

Are present a CONFIG file and will they be and all former backups are available, or are they all treated as “empty tapes” ?

Tnx for the reply