Scale Out Configuration Options

There are various Enterprise Server for .NET component combinations possible for machines in a scaled out installation. For example:

1. A machine configured with a listener only operates with configurations 2 and 5, or with configurations 3, 4, and 5. Network load balancers manage traffic between the listener and the dispatchers on the other machines in the installation.
2. A machine configured with an event monitor, a dispatcher and one or more SEPs operates with configurations 1 and 5.
3. A machine configured with an event monitor and a dispatcher operate with configurations 1, 4, and 5. Network load balancers manage traffic between:
   • The listeners and the dispatcher.
   • The dispatcher and the SEPs on a configuration 4 machine.
4. As described in configuration 3, a machine configured with an event monitor and an SEP operates with configurations 1, 3, and 5.
5. You can configure the installation's database server on a single machine, or it can operate over multiple machines.