Tapes in insert(FF00) mode in 3494

[Chi, Hyeong]

Hi,
In 3494 tape library I've found dozens of 3590 tapes in insert(FF00) mode. I
tried checkin command with search=yes, status=scratch, devtype=3590 but it
didn't bring tapes into scratch mode. Instead, running checkin every single
volumes without specifying search option did work.

Now my questions are:
1. why or what makes tapes go to insert status?
2. How do I bring them back to scratch status without checkin one by one?

Server is 3.7.4 on aix4.3.3.
Thank you in advance.

Joon Chi
APTEA