Force Backup Exec to rotate appending tapes
we have a tape library every friday we are creating a fullbackup using backup exec 2012.
On monday to thursday we want to make a differential backup using 4 rotating tapes.
If we choose to overwrite the media all things are fine. Every day backup exec chooses another tape.
But we want to append the data to the existing tape.
If we choose "apend to tape" Backup Exec chooses the same tape every day until the tape is full.
How can we force the program to rotate the tapes ?
We also tried to solve this problem using four different partitions (monday to thursday). But in that case if the tape is full, backup exec is waiting for a new tape instead of erasing them.
Is this backup strategy impossible ? Appending data to tapes has 2 advantages:
1.) If we append the data instead of overwriting them, the used tape area is not every time the same.
2.) In the case of a restore we can jump more time backwards into the past because the data is not overwritten every week