Tape keep changing back to overwrite protected

[garytan]

Hi all, I been encountering problem with the backup. We have total 6 tape for backup and 1 cleaning. 3 Tape for backup and 1 cleaning in the magazine. So every week we will cycle 3 of the tape out and insert 3 tapes from last week. So recently my storage slot has been showing the 3 tapes are overwrite protection till xx/xx/xxxx(14 days after insert tape). I have tried to set media as Scratch and it probably just able do 1 backup and the tape will be changed to overwrite protection again.

[pkh]

So what is your problem?

[RogRubin]

If you want to run more then one backup onto a tape, then you need to configure / enable "append" as well as otherwise once the backup hsa finished the data ir rightly overwrite protected.
Here is an explanation of Append / Overwrite
https://www.veritas.com/support/en_US/article.100017917

Otherwise as PKH stated, can you explain the problem in more details, please.