The vRealize Operations Manager user interfaces can be accessed from any full node. VMware recommends a load balancer for even distribution of the user interface traffic and load. The maximum number of concurrent user connections is 200. This maximum number of concurrent users is achieved on a system configured with the objects and metrics at 50 percent of supported maximums. (For example, 4 large nodes with 20K objects or 7 nodes medium nodes with 17.5K objects.) When the cluster is running with the nodes filled with objects or metrics at maximum levels, the maximum number of concurrent users is 4 users per node. (For example, 16 nodes with 120K objects can support 64 concurrent users.)

The load per user varies depending how many objects the user is permitted to access (in particular, if the user is running views or reports against large sets of metrics over a long time).

As a design consideration, if vRealize Operations Manager is to be configured as a cluster, use an external load balancer to distribute the load across the cluster.