This topic is already clear for us.
1. For weekly tape, before eject the tape. We have to select –unmount-->right click tape volume (change mode to recycleable)---recycle (auto) --->eject. ( it will be expire in 3 months).
2. For monthly tape. Before eject the tape. We have to select –unmount –>right click tape volume (change mode to recycleable) ---> recycle (auto) --->eject.
3. For quarterly tape. Before eject –unmount -->right click tape volume (change mode to read-only) –recycle (manual)-->eject.
But, at this that we have a problem when we click eject the tape we didn't select to recycleable. It's appenable that why the problem has occrued.
Thank you,