Fault Tolerant Configuration

Fault tolerance is deployed using two TIBCO Enterprise Message Service™ Appliances which are started at the same time and communicate over a cabled connection.

Each appliance contains a primary EMS server instance and a secondary server instance that is activated in the event of a failure of its primary instance. All switches and EMS clients are connected to both appliances, allowing the secondary server instance to take over from the primary instance in the event of a failure.

In Fault Tolerant mode, data gets replicated between the active and standby EMS servers. So, both servers must be running and replicating when making configuration changes using Central Administration or the admin tool.

Note: All appliances in a fault tolerant configuration should be of the same model, either standard or high performance. For best results, both appliances should use the same TIBCO Enterprise Message Service™ Appliance software version.