vRealize Automation IaaS Web server provides a user interface within the vRealize Automation portal Web site for the administration and consumption of IaaS components.

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

The Model Manager communicates with the database, the DEMs, and the portal website. The ModelManager is divided into two separately installable components — the Model Manager Web service and the Model Manager data component.


The vRealize Automation IaaS Web server is a separate component from the vRealize Automation appliance.

vRealize Automation IaaS Web Server Design Decision

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 provides redundancy to the IaaS Web Server components.

Operational overhead increases as more servers are deployed.

vRealize Automation IaaS Web Server Resource Requirements



Number of vCPUs



4 GB

Number of vNIC ports


Number of local drives


vRealize Automation functions

Model Manager (Web)

Operating system

Microsoft Windows Server 2012 SP2 R2