Broker 10.5 | webMethods Broker Documentation | Running webMethods Broker in a High-Availability Windows Enterprise Server Cluster | Overview | Overview of High-Availability Clustering | Types of Cluster Configuration
 
Types of Cluster Configuration
There are three basic HA cluster configurations:
*Active/Passive. A two-node configuration with one node being active and one node in a standby state at any given time. This is the most common configuration, and the one that is recommended for use with Broker applications.
*Active/Active. A two-node configuration with both nodes being active at the same time. Each node typically runs different sets (or instances) of services. When one node fails, the services on the failed node will failover to the active node.
*N-to-1. A multi-node configuration with one dedicated spare node. After the original failed node is recovered, services are restored from the spare node to the original node and the spare node returns to its standby state.
In addition to the above basic configurations, there are advanced HA configurations that are beyond the scope of this manual. For more information, see your cluster software product documentation for your cluster software.