See resolution
To extend VTL see procedure in the Advanced Virtual tape library configuration and implementation guide on page 12 at the URL below:
http://us-downloads.quest.com/Repository/support.quest.com/NetVault%20Backup/8.5.3/Documentation/NetVault_Backup_Advanced_VTL_Configuration_Implementation_Guide.pdf
Note step 2 make note of the highest alphanumeric /numbers piece of media barcode as new media should have barcode greater than the highest piece of media.
