Media Manager status code: 81

Message: robot type and volume group mismatch

Explanation: A request was made to add volumes or change volume residences in the volume configuration. The robot type and volume group that is associated with the volume configuration changes are in conflict with the requirements for volume groups. All volumes in a volume group are required to have the same residence, which includes having the same robot type. A requested operation may have tried to associate the special No Volume Group name "---" with a robotic residence.