I'm not sure what software we have, as I don't deal with it but I assume it is what came with the Auto-tape loader.
We have 14 Tapes. One for every day, the previous weeks backup tapes are put into a fireproof box in the safe otherside of site just incase anything goes wrong. We did have a server managing our backups, but it caused us so many problems, so we invested into the tapes.