...
The Unmanaged Rack plugin will have two components – the API server that conforms to the Plugin Developer’s Guide (PDG) and a Redfish backend ‘plugin data store’ that simulates a resource manager. The API server is a stateless entity while the Redfish backend would be expected to maintain state of the groups of Racks and associated resources they contain. The Rack Manager plugin’s API server will conform to the mandatory functions set in the PDG. It will also need to have a management interface with username and credentials so that the interface can be added using the Aggregation Service.
Figure 1
Later
Use Cases
Adding Resource Manager
...