DEM_Groups
DEM defines groups as an interpretation of Redfish Zones to add policies in addition to NVMe-oF Target Configurations regarding Hosts
The left example is a NVMe-oF Target Configuration allowing all Hosts access to Subsystem 'Subsys1'
The center example restricts access to 'Host2' and enables access for 'Host1'
The right example defines a Group restricting access to 'Host2' even though the NVMe-oF Target configuration allows all Hosts access to the Subsystem.
This example shows NVMe-oF Targets can exist in multiple Groups.
The following scenario shows it is possible to misconfigure groups such that no Host has access to a given resource.
