vCloud Director derives its resources from an underlying vSphere virtual infrastructure. After you register vSphere resources in vCloud Director, you can allocate these resources for organizations within the vCloud Director installation to use. Adding vSphere ResourcesvCloud Director relies on vSphere resources to provide CPU and memory to run virtual machines. In addition, vSphere datastores provide storage for virtual machine files and other files necessary for virtual machine operations. Adding Cloud ResourcesCloud resources are an abstraction of their underlying vSphere resources and provide the compute and memory resources for vCloud Director virtual machines and vApps, and access to storage and network connectivity.