I would first recommend to run vendor diagnostics against the 2nd tape drive. If using HP tape drive, use the HP Library & Tape tools.
And have you tried cleaning the 2nd tape drive as well ?
Managed to get the error away from Drive 2 and now we have the following new error:
I think that it's been a long time since you found a solution for your problem, or at least partly i think.
I am facing the same warnings:
I've see this same problem with Dell librarys and HP librarys. If you have a tape that's labeled bad in the library web interface, (again from the web interface), move the tape to a drive then back to a different slot in the library. If the problem is still there then it's the tape if not my .02c is you have a "Stickey" slot.
I've never gotten a fix suggestion from HP but Dell tech recomends that I, you, whomever, take the tray out and remove & re-insert a tape into it 10 or so times to smooth out any lip's or rough spot's that may have formed on the slot.
Hope this helps.