I just got a new job and the company i work for uses DPM2010. The software just runs for quiet some time now, and backups are made to tape. There are 2 servers running DPM and each has a tape library of 23 tapes. 1 tape is the cleaning tape.
Nobody seems to know how the software works and who configured it. Must be some dude that worked here before. Now i decided to jump into DPM2010. Some questions to get started;
1. Everyday DPM generates an error that the free tape treshhold has been reached. We free tapes manually. Is that normal? Can DPM be configured in a way that it automaticaly overrides an older backup?
2. I'm looking in to protection groups. I see there's short-term and long-term protection. What do they mean?
3. Short-term protection is configured to use disk. And it's configured to use tape for long-term protection. Is that the best way to go?
Hope i can get some help! Thanks!