The primary building block for VxRail is the individual node. A collection of nodes are used to form a VxRail cluster and placed under a single point of management. The nodes can be customized for business and operational requirements with specific components to support different VxRail cluster types.
The VxRail nodes can be customized to provide all the physical compute, network, and storage resources for the cluster. This task is accomplished by using the local disk drives on each node to form a vSAN datastore as the primary storage resource for application workload. Alternatively, the nodes can be customized without local disk drives to instead use external data center resources for primary storage.
This chapter is an introduction to the types of clusters supported with VxRail. It also describes the types of use cases that can be supported with each cluster type.