Hello,
Please follow the technote given below.
(title) How to disable, delete, and then again re-enable a device in Backup Exec 9.x and 10.0 for Windows Servers
http://support.veritas.com/docs/268626
Also please check if your device is tested from the link given below. If it is tested then install the latest Veritas drivers.
(title) Backup Exec 9.x for Windows Servers Robotic Library Hardware Compatibility List (HCL) (includes tested drives)
(title) VERITAS Backup Exec (tm) 9.1 - Device Driver Installer (20050115) - Includes Tape Driver Release (20041231) and Robotic Library Release (45) (Intel Only)
http://support.veritas.com/docs/273853
Additional Information :
For information on the recent VERITAS Backup Exec security vulnerabilities, including links to the downloads for the necessary hotfixes, please refer to the following document:
Patch summary for Security Advisories VX05-001, VX05-002, VX05-003, VX05-005, VX05-006, VX05-007
http://seer.support.veritas.com/docs/277429.htm
Note : If we do not receive your reply within two business days, this post would be marked ‘assumed answered’ and would be moved to ‘answered questions’ pool.
Thanks.