A cluster consists of:
- A collection of one or more nodes, combined with
- A cluster controller
All the compute nodes within the cluster share:
- The same storage;
- The same networking; and
- The same hypervisor
Therefore, if you want to have two different hypervisors, or use different storage, or different networking, you will need to break your nodes into clusters.
Multiple clusters can be managed by a single management plane. On a simple single cluster deployment, the management plane and cluster controller can use the same hardware.
Clusters can be added or removed using the Cluster Control Panel.
The number of clusters that you are permitted to run is determined by your licence.