Hello,
Ensure that the device is recognized by the OS. If yes, check if it is listed on the HCL. Refer the following link.
Backup Exec 9.x for Windows Servers Libraries (with Tested Drives) Hardware Compatibility List
http://support.veritas.com/docs/271383
If it is compatible, install VERITAS drivers. Also as mentioned in previous thread refer the following document and verify the same with your configuration.
Title:
How to troubleshoot issues with a Robotic Library or Tape Drive in Backup Exec 9.x and 10.0
http://support.veritas.com/docs/255501
If the problem persists, please elaborate on the issue.
NOTE : If we do not receive your intimation within two business days, this post would be "assumed answered" and archived.