Multitenant Use of vRealize Operations as a Service : Designing for vRealize Operations as a Service : 4.3 Availability and Recoverability : 4.3.1 Access Layer
   
4.3.1 Access Layer
The vRealize Operations Manager user interfaces can be accessed from any node. A load balancer can be used to detect if a node is down and forward traffic to surviving nodes.
The following are access layer design considerations:
Design for HA by having two or more nodes in a cluster configuration with the HA option enabled.
Use a load balancer to monitor for node failure and forward traffic to surviving nodes.