HP Serviceguard manual Monitoring Script for Generic Resources

#

#

#########################################################################

function stop_command

{

sg_log 5 "stop_command"

#ADD your halt steps here exit 1

}

################

#main routine

################

sg_log 5 "customer defined monitor script"

#########################################################################

#

#Customer defined monitor script should be doing following

#functionality.

#

#When the package is halting, cmhaltpkg will issue a SIGTERM signal to

#the service(s) configured in package. Use SIGTERM handler to stop

#the monitor script.

#

#Monitor the generic resource configured in package using customer

#defined tools and set the status or value to generic resource by using

#"cmsetresource" command. When setting the status or value get the current

#status or value using "cmgetresource" and set only if they are different.

#########################################################################

start_command $*

#SIGTERM signal handler to stop the monitor script trap "stop_command" $SIGTERM

while [ 1 ] do

#Using customer defined tools get the status or value

#of generic resource(s) which are configured in package.

#Set the status or value of the generic resource using

#"cmsetresource" command. Before setting the stauts or value

#compare the new status or value by getting the existing status or

#value using "cmgetresource" and set only if they are different.

#Wait for customer defined interval to check the status or value

#for next time.

done

Sample script to monitor a physical volume that is a part of HP-UX Logical volume group (LVM) using the SFM monitoring mechanism can be found at: .

/etc/cmcluster/examples/sample_generic_resource_disk_monitor.sh

Before using this script, copy it to the package specific directory. This script expects the following parameters when configured as a service:

•$1 : Generic resource name: The name of the generic resource configured in the package that corresponds to this monitoring script.

•$2 : LVM volume group name: The name of the LVM logical volume group whose physical disks need to be monitored.

•$3 : Monitor interval: The time interval between successive monitors.

394 Monitoring Script for Generic Resources