Delivery Controller にはデリバリーグループが含まれます

ComTrade.Citrix.XenDesktop.DeliveryGroupContainer.Hosts.DeliveryGroup (RelationshipType)

Source	ComTrade.Citrix.XenDesktop.DeliveryGroups.Container
Target	ComTrade.Citrix.XenDesktop.DeliveryGroup
Type	System.Hosting
Accessibility	Internal
Abstract	False