If you run a robot inventory on a robot of type ACS ensure that the installed version of NetBackup supports and recognizes the vendor media type that the robot control software returns.

If using a command-line interface directly, verify that a valid media type has been passed, according to vmadd(1m) command-line documentation.

Ensure that an operation valid only for cleaning media has not been requested on a media ID that does not correspond to the cleaning tape.

Ensure that the media type in all barcode rules is a valid media type or the ordinal zero (0), to represent the default media type.