Backup Exec 11d bugs me when during the week it decides to start daily differential backup on a new tape when there is plenty of room available on the last tape used... It happens only when the last backup span 2 tapes. As a consequence, i have a tape with only the end of the last save on it and save of the day starts on yet another tape. Though, when last backup is contained on a single tape, it gently appends save of the day to that tape and everything is all right.
What's wrong with my config ? Tape library is an HP Ultrium LTO/8, tapes are LTO3
Media management is set on "Partial protection" and "Overwrite recyclable before scratch"
Any media inserted is well inventoried, append period for that kind of save (differential) is set to "infinite - allow appending"
Thanks you experts