Host Integrator Domain Servers provide load balancing and failover support for multiple Host Integrator Servers. When a client application sends a request to a data object to connect to a model by means of a Host Integrator Domain, the data object follows this procedure to execute the request:
The primary domain server is the first active Server in the domain server list. When you create domain server lists, you should add Servers to the domain in the order you want them to be used as backup servers for the primary domain server; these backup Servers provide failover support. For more information, read about adding and configuring domains.