Within vCloud Directory's hierarchy, the Provider vDC is the top-level object, which is similar to the datacenter in vCenter Server. Inside a Provider VDC, you can house multiple organization virtual datacenters. In this recipe, you will create several Organization VDCs inside the provider VDC that is defined when you set up vCloud Director.

Each time that you create a new organization (tenant) on vCloud Director, you must give them a place to provision services. That is the purpose of the organizational VDC. However, organizations can have multiple Organization VDCs assigned to them, perhaps one onsite, and one at a third-party provider's site.

Unless you are handling multiple resellers on the same infrastructure, there is probably no need for multiple Provider VDCs, but there are always exceptions to any rule. One possible exception would be the infrastructure is managed by separate vCenter Servers. A Provider VDC is limited...