vRealize Automation IaaS Web server provides a user interface in the vRealize Automation portal for consumption of IaaS components. The same virtual machine also runs the Model Manager that communicates with the other IaaS components. In the design of the IaaS Web server, consider the number of instances according to the design objectives and the sizing for them.

The IaaS Web site provides infrastructure administration and service authoring capabilities to the vRealize Automation console. The Web site component communicates with the co-located Model Manager, which provides it with updates from the Distributed Execution Manager (DEM), proxy agents and database.

Table 1. Resource Requirements for the vRealize Automation IaaS Web Server per Virtual Machine






8 GB



Local drives


vRealize Automation functions

Model Manager (Web service)

Operating system

Microsoft Windows Server 2016

Table 2. Design Decisions on vRealize Automation IaaS Web Server

Decision ID

Design Decision

Design Justification

Design Implication


Install two vRealize Automation IaaS Web servers.

vRealize Automation can support between 1,000 and 10,000 virtual machines. Two vRealize Automation IaaS Web servers provide redundancy to the IaaS Web server components.

Operational overhead increases as more servers are deployed.