We have already discussed that Horizon Workspace is made up of five virtual appliances. However, for production environments, you will need to deploy multiple instances to provide for high availability, offer load balancing, and support the number of users that you need in your environment.
For a Proof of Concept (POC) or pilot deployment, this is of less importance.
The following diagram shows the maximum number of users that each appliance can accommodate. Using these maximum values, you can calculate the number of appliances that you need to deploy.

For example, if you had 6,000 users in your environment, you would need to deploy a single connector-va appliance, three gateway-va appliances, one service-va appliance, seven data-va appliances, and a single configurator-va appliance. Please note that data-va should be sized using N+1. The first data-va appliance should never contain any user data. For high availability...