The mutual node switching system is one of the configurations in which the executing node and standby node of Application Server are arranged in the 1-to-1 ratio. Each Application Server operates as an executing node, and one Application Server is set as the standby node of other Application Server and the vice versa (mutual standby configuration). By deploying the same types of J2EE servers in each Application Server and by starting different J2EE servers in advance, each Application Server operates as an executing node and simultaneously functions as the standby node of the other Application Server. If a failure occurs in any one of the nodes, the system switches to the other node. This enables the economical operations using a few application server machines. You use the Smart Composer functionality to build this system. This subsection describes the settings for the mutual node switching systems.

Note that the operations of the mutual node switching system can only be used in AIX, HP-UX, or in Linux.

For details on the functionality, see 18.2 Overview of the mutual node switching system. For the system configuration, see 3.11.4 Configuration in which the executing and standby nodes of Application Server are at mutual standby in the uCosminexus Application Server System Design Guide. Also, for HA monitor, see the manual Reliable System Monitoring Functionality HA Monitor.

Organization of this section

18.5.1 Procedure for setting up the mutual node switching system

18.5.2 Environment settings in the cluster server

18.5.3 Editing the setup file

18.5.4 HA monitor environment settings

18.5.5 Creating the shell script file

18.5.6 Server-compliant environment settings

18.5.7 LAN status setup

18.5.8 Setting Application Server