Problem solved by rebooting the tape drive with a tape inside. It is possible that there was an error during the eject sequence and that the tape drive needed to be rebooted back into the last known state, i.e. with a tape inside it.
Hi,  I have a LTO-3-060 tape drive connected to a PowerEdge 2950. When checking the backup tapes, I noticed that I could not insert a tape into the drive and that the slot remained open. The amber lights (Clean status and Fault status) were both rapidly flashing yellow.  I've tried holding the eject button for 20 seconds until all the lights come on and the tape drive reboots. However, the slot remains open and the yellow lights come back on.  I've also tried connecting to the tape drive using the ITDT software and I get "EC 6" error codes when performing tests and when I try to reset the drive. Updating the firmware also does not work.  Does anyone know how else I can troubleshoot the drive?
Cannot insert tape into PowerVault LTO-3-060, Amber lights flashing