19.7 Starting and stopping the N-to-1 recovery system (In UNIX)

This section describes the procedure for starting and stopping a system when you are using an N-to-1 recovery system based on the HA monitor. Note that you can use the HA monitor only in AIX or Linux.

When performing the operation using the N-to-1 recovery system based on the HA monitor, you must specify the required environment settings beforehand, such as preparing the two hosts as the active node and spare node, and registering the script for monitoring, starting, and stopping the Administration Agent in which you run the cluster service. For details on how to specify the settings, see 19.5 Settings for the N-to-1 recovery system (In UNIX).

Tip

When you use the N-to-1 recovery system based on the HA monitor, start Management Server, and start only the Administration Agent in each Application-Server host. In each Application-Server host, do not specify the settings for starting the Administration Agent together with the OS.

The following commands are the commands provided by the HA monitor. For details, see the manual High-reliability System Monitoring Functionality HA Monitor.

• monbegin (Starting a server that does not have an interface with the HA monitor)

• monend (Communication to stop a running server that does not have an interface with the HA monitor)

  Reference note

  When differentiating the nodes during operation of the HA monitor, divide them into the 'executing node' and 'standby node'.

  • Executing node

    This is the node containing N number of Application Servers for executing the business processing.

  • Standby node

    This is the node containing a single recovery server.

Organization of this section

• 19.7.1 Starting the N-to-1 recovery system

• 19.7.2 Stopping the N-to-1 recovery system

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