2.2 Single-Site vCloud Director
Until vCloud Director v9.0, there was no real concept of a site within the vCloud Director data model. Typically, Cloud Providers deployed an instance of vCloud Director in a single location, dedicating much of the underlying infrastructure to a single Provider VDC (PVDC) which was the closest representation to a site because it was usually constrained to a single location. The following figure shows a representation of the relationship between the elements of a single vCloud Director instance.
Figure 3. Single-Site vCloud Director Object Hierarchy
The Cloud Provider data center is the outer “container”, within which the vCloud Director instance is deployed and has control of the (in this example) single VMware vCenter Server and its associated resources. Cluster-01 is allocated to a single PVDC within which individual Tenant Org VDCs are deployed. Additional PVDCs can be provisioned to present different types of compute nodes (perhaps with a different CPU or memory) within the same geographic location.
