This design uses NSX logical switches to abstract the vRealize Automation application and its supporting services. This abstraction allows the application to be hosted in any given region regardless of the underlying physical infrastructure such as network subnets, compute hardware, or storage types. This design places the vRealize Automation application and its supporting services in Region A. The same instance of the application manages workloads in both Region A and Region B.

vRealize Automation Region Design Decision

Decision ID

Design Decision

Design Justification

Design Implication

SDDC-CMP-001

Utilize a single vRealize Automation installation to manage both Region A and Region B deployments from a single instance.

vRealize Automation can manage one or more regions. This provides a single consumption portal regardless of region.

The abstraction of the vRealize Automation application over virtual networking allows it to be independent from any physical site locations or hardware.

You must size vRealize Automation to accommodate multi-region deployments.

vRealize Automation Anti-Affinity Rules

Decision ID

Design Decision

Design Justification

Design Implication

SDDC-CMP-002

Apply vSphere Distributed Resource Scheduler (DRS) anti-affinity rules to the vRealize Automation components

Using DRS prevents vRealize Automation nodes from residing on the same ESXi host and thereby risking the cluster's high availability capability

Additional configuration is required to set up anti-affinity rules. Only a single ESXi host in the management cluster, of the four ESXi hosts, will be able to be put into maintenance mode at a time.

vRealize Automation IaaS AD Requirement

Decision ID

Design Decision

Design Justification

Design Implication

SDDC-CMP-003

vRealize Automation IaaS Machines are joined to Active Directory

This is a hard requirement for vRealize Automation

Active Directory access must be provided using dedicated service accounts

vRealize Automation Design Overview for Region A

vRealize Automation DesignOverview for Region B