Starting LifeKeeper

All LifeKeeper software is installed in the directory /opt/LifeKeeper.

When you have completed all of the verification tasks, you are ready to start LifeKeeper on both servers. This section provides information for starting the LifeKeeper server daemon processes. The LifeKeeper GUI application is launched using a separate command and is described in Configuring the LifeKeeper GUI. LifeKeeper provides a command line interface that starts and stops the LifeKeeper daemon processes. These daemon processes must be running before you start the LifeKeeper GUI.

Starting LifeKeeper Server Processes

!When LifeKeeper starts and establishes communication with the other servers in a cluster, it will not allow data replication (DataKeeper) resources to come in-service (manual or automatic) until communication is established with all servers in the cluster. The data replication resources will be marked OSF if an attempt is made to in-service them before communication is established with all servers. (Please refer to the system’s log files for additional information.)

If LifeKeeper is not currently running on your system, type the following command as the user root on all servers:

/opt/LifeKeeper/bin/lkstart

When executing this command, the LifeKeeper service will be started and LifeKeeper will be set to start automatically at system startup.

Following the delay of a few seconds, an informational message is displayed.

*Note: If you receive an error message referencing the LifeKeeper Distribution Enabling Package when you start LifeKeeper, you should install / re-install the LifeKeeper Installation Image File.

See the LCD help page by entering man LCD at the command line for details on the lkstart command.

To start only the LifeKeeper process without enabling automatic startup, execute the following command:

service lifekeeper start (or, systemctl start lifekeeper)

Enabling Automatic LifeKeeper Restart

While the above command will start LifeKeeper, it will need to be performed each time the system is re-booted. If you would like LifeKeeper to start automatically when server boots up, type the following command:

chkconfig lifekeeper on (or, systemctl enable lifekeeper)

See the chkconfig man page for further information.