A container number can be assigned more than once. Together with the class name (and the class GUID), a container can be uniquely identified in the OMS intermediate layer.
Instances of a class are grouped by various characteristics using the container number. The combination of liveCache schema, class name, and container number is unique.
The container numbers can be displayed from the following user menus:
DBA Cockpit, Class Containers
liveCache Assistant, Class Containers