Architecting a VMware NSX Solution : Design Considerations : 4.3 vCenter Server Design
   
4.3 vCenter Server Design
vCenter Server is the management and control component for the vSphere platform. Service providers can deploy any number of vCenter Server nodes to support the required scale and management.
Typically, there are two types of vCenter Server instances that VMware Cloud Providers deploy:
Management – vCenter Server is leveraged to host all management clusters and is not under the control of VMware NSX.
Resource/payload – vCenter Server is used to host all the resource/payload clusters for the end user workloads and is under the control the VMware NSX.