Greetings,
We would like to know whether the Robotic Library is properly recognized by Backup Exec. If the Robotic Library is properly recognized then you would be able to see all the drives and the slots in Backup Exec and you would also be able to delete the library once the drive is disabled.
Recycling Backup Exec services means to stop and restart all Backup Exec services. SGMon utility does not correct the problem but helps us identifying the problem. A log is generated when you perform utility jobs like inventory, erase etc.
You may use the following technote to isolate the issue:
http://support.veritas.com/docs/255501