Hello,
In case the device has any problems, Backup exec too might not work well with it. Verify if there are any errors in the Windows event logs that correspond to the device.
You can try to use it with Backup exec and if you received errors, it could mean that the device has problems. You will need to then contact the hardware vendor.
Revert in case you need further details on this.
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.
Regards.