The library vision system on an ATLDS verifies the external label on the volume at the physical location specified in the library manager data base. The cartridge is not mounted and read, only the external label is verified. The following actions are performed when an audit is requested against volumes in an automated tape library dataserver:

• The system verifies that the tape volume has an entry in the library manager.
• The visual system verifies that the tape volume is in its assigned location in the automated tape library dataserver.
• The vision system verifies that the external cartridge label of the tape volume is present and readable.
• The system verifies that the tape is accessible in the automated tape library dataserver.