Commands

Groupings and Basic Descriptions of LifeKeeper bin Commands

The commands will be in: /opt/LifeKeeper/bin

To place this in your path, execute: ‘. /etc/default/LifeKeeper’

Starting and Stopping LifeKeeper, the GUI, etc.

lkstart – Start LifeKeeper core

Options:

None

lkstop – Stop LifeKeeper core. The behavior when stopping differs depends on the option.

Options:

None – Stop LifeKeeper Core and the protected services. No switchover to the standby system is performed regardless of the shutdown strategy setting.

-r – Leave auto-start on system startup enabled.

-n – Stop LifeKeeper Core and the protected services. If the shutdown strategy is set to “Switchover Resources”, the system will be switched over to the standby system. Also, if LKSTOP_FAILOVER_N=1 is set in /etc/default/LifeKeeper, failover will occur regardless of the shutdown strategy setting.

-f – Stop LifeKeeper core but do not stop the protected resource.

lkGUIserver – Start and stop the LifeKeeper GUI daemon processes

Options:

start

stop

restart

lkGUIapp – Starts the LifeKeeper Java application

Options:

None

Monitoring LK and Other Misc. LifeKeeper Commands

lcdstatus – Display status of LifeKeeper resources, comm paths, etc.

Options:

-d – <node to run command on>

-q – short reports

lcdsync – Writes LifeKeeper configuration information from memory to disk

Options:

-d – <other node to run it on>

lcdrcp – Transfer files from one LifeKeeper node to another via the comm. path

Options:

lcdrcp <file names> {dest:ofile | dest:odir}

lcdremexec – Execute the given command on the given LifeKeeper node

Options:

-d <node to run command on> <command>

lcdrecover – Checks and sets resource hierarchy instance settings

Options:

See man -M /opt/LifeKeeper/man lcdrecover.

Bringing a Hierarchy into and out of Service

perform_action – Performs a given action on a given resource.

Can be used to switch a given hierarchy to another node.

Options:

-a <action name>

-t <tag name>

Examples:

perform_action -a restore -t $LKTag – bring tier into service

perform_action -a remove -t $LKTag – take tier out of service

Checking the LifeKeeper Configuration

lkchkconf : Performs the following checks to verify /etc/default/LifeKeeper settings.

• • Checks that the running system is actually using the current settings found in /etc/default/LifeKeeper.
    If the current setting of LifeKeeper is different from the /etc/default/LifeKeeper setting, an error message is output to inform the user.

• • Checks for any inconsistencies between the resource health check time interval(LKCHECKINTERVAL) and the timeout value of each ARK.
    An error message will be logged if the timeout value of each ARK is longer than the resource health check time interval (LKCHECKINTERVAL).

Options:

None