On the Deployment Type page, you decide which vRealize Automation components, and how many of each, you want to install.
Minimal deployments use just one vRealize Automation appliance and one Windows server that hosts IaaS components. In minimal deployments, you may host the IaaS database on a separate SQL Server system, or install SQL on the IaaS Windows server.
You cannot convert a minimal deployment to an enterprise deployment. To scale a deployment up, start with a small enterprise deployment, and add components to that. Starting with a minimal deployment is not supported.
Enterprise deployments involve multiple, separate appliances and Windows hosts, typically with load balancing. Enterprise deployments also permit you to host the IaaS database on a separate SQL Server system or on one of the IaaS Windows servers.
When you select an enterprise deployment, additional Installation Wizard pages appear in the summary list at the left of the wizard.
Infrastructure as a Service
The Infrastructure as a Service (IaaS) option selects whether or not to configure existing Windows machines with vRealize Automation modeling and provisioning capabilities.
When you select IaaS, additional Installation Wizard pages appear in the summary list at the left of the wizard.