vSphere provides storage, compute, and networking capacity to vCloud Director. Before you begin installation, consider how much vSphere and vCloud Director capacity you need, and plan a configuration that can support it.
Configuration requirements depend on many factors, including the number of organizations in the cloud, the number of users in each organization, and the activity level of those users. The following guidelines can serve as a starting point for most configurations:
Allocate one vCloud Director server (cell) for each vCenter Server system that you want to make accessible in your cloud.
Be sure that all vCloud Director servers meet at least the minimum requirements for memory and storage detailed in vCloud Director Hardware and Software Requirements.
Configure the vCloud Director database as described in Installing and Configuring a vCloud Director Database.