When our new tape library and media server were installed, Backup Exec was
set up to run in Media Management mode. I had been using Partion Management
mode with the privious library/server.

I have a basic understanding of the types of media but my problem seems to
be managing "Media Management," specifically, how do I know how much of my
media has been used and how do I estimate how much capacity I have remaining
in my library? Backups tend to fail over the weekend because I've run out
of media. How do I keep on top of the situation?