15.2.2 System operating on mutual standby (mutual node switching systems)
The mutual node switching system is a system in which the configuration of the 1-to-1 node switching system is used, and while each server operates as an active node, each server become the spare node for the other server. The Application Server supports operations of the mutual switching systems of the Application Server.
In the mutual node switching system, a J2EE application or batch application is operated respectively on each server and when a failure occurs, the node is switched automatically to the mutual standby node, and after that the operations are continued. Also, same as in the case of the 1-to-1 node switching system, even when failure does not occur, if the running system has preventive maintenance or other requirements, you can switch to the standby node in a planned manner using the operations of the operator.
For details on the mutual node switching system, see 18. Mutual Node Switching System (Linked with Cluster Software).