Required setup for this scenario:
M3 BE Grid must be running on the Windows Platform, deployed on more than one host.
M3 BE class files installed on the application server must be accessible from all hosts where the M3 BE Environment is deployed.
M3 BE subsystem bindings must be configured to be able to run on any of the included hosts.
A software or hardware network load balancer must be configured in front of the routers on the hosts, to enable clients to be directed at one single entry point, that routes the traffic dependent on load and availability