The GroupWise High Availability service, described in GroupWise 8 Installation Guide, relies on the Monitor Agent to know when an agent has stopped and needs to be restarted. To enable communication between the Monitor Agent and the High Availability service, start the Monitor Agent with the --hauser and --hapassword startup switches, set to the username and password of the Linux user you set up to represent the High Availability service on your Linux server. You can also use the --hapoll startup switch to control how often the Monitor Agent contacts the High Availability service with agent status information. The default is every 2 minutes.
The GroupWise High Availability server does not require that the Monitor Application is installed.