Unlike the vSphere Replication Appliances, you can deploy additional vSphere Replication Servers using an Add-On appliance available in the vSphere Replication deployment bundle that was downloaded.
There are several use cases for deploying additional VR servers. One of the prime reasons is manual load distribution. Each VR server with a default memory configuration of 716 MB can handle up to 200 replications. If there more than 200 VMs are replicated, then you could choose to either increase the memory of the appliance or deploy additional appliances and load balance by distributing the replication traffic to different appliances.
The following procedure will guide you through the steps required to deploy additional VR servers: