I see system groups with a number for the name, and owned by RIPS*******. What are they used for and can I delete them?
The reason you see them is because you are using the Management Central Application Administration capability, which enables a user to view system groups (and other Management Central objects) that are not shared. These are unique System Groups that are created when Inventory Collection is run to “Collect and Send data to IBM”. These special system groups owned by RIPS******* are deleted when the associated Inventory Collection task is deleted. These special system groups were also created and deleted in prior releases but users never saw them. When using Management Central Application Administration, these special temporary system groups may be seen by a user.