A cluster is a collection of ESXi hosts and associated VMs with shared resources and a shared management interface.
A cluster shares physical resources between a group of ESXi hosts. Vcenter server manages cluster resources as a single pool of resources. Clusters can contain up to 96 ESXi hosts.
Clusters can be created based on specific purposes such as:
Clusters contain these features:
- vSphere DRS
- vSphere HA
You can manage image setups and updates collectively on all hosts.