Bringing PowerHA UNMANAGED resource groups back online

Assuming that your cluster services are stopped and the resource groups are running as UNMANEGED.

• Start cluster services using setting "Manage Resource Groups" to "Manually" on the node were you stopped the services and let the resource groups as unmaneged
• Create dummy monitoring script

cat > /tmp/dummy.sh
#!/bin/sh
exit 0
chmod +x /tmp/dummy.sh

• List cluster's applicatios

cllsserv

• Add the dummy monitoring script as the monitoring script for the application (testapp_rg1 on this example)
  • Note 1: You have to do this for all the applications managed by your clsuter.
  • Note 2: You must use a single "name" for each application monitoring script.

/usr/es/sbin/cluster/utilities/claddappmon MONITOR_TYPE=user name='dummymon' RESOURCE_TO_MONITOR='testapp_rg1' INVOCATION='both' MONITOR_METHOD='/tmp/dummy.sh' STABILIZATION_INTERVAL='5' RESTART_COUNT='5' FAILURE_ACTION='notify'

• Command to generate all necessary claddappmon commands. Run the commands manually after you run below command.

for RESOURCE in $(cllsserv | awk '{print $1}') ; do echo "/usr/es/sbin/cluster/utilities/claddappmon MONITOR_TYPE=user name='$RESOURCE.dummymon' RESOURCE_TO_MONITOR='$RESOURCE' INVOCATION='both' MONITOR_METHOD='/tmp/dummy.sh' STABILIZATION_INTERVAL='5' RESTART_COUNT='5' FAILURE_ACTION='notify'" ; done

• Check if the monitoring script has been added

/usr/es/sbin/cluster/utilities/cllsappmon

• Synchronize the cluster

/usr/es/sbin/cluster/utilities/cldare -rt -V 'normal' -C'interactive'

• Check return code for the monitoring script, it has to be 0 or HACMP will rerun the application start scripts

/usr/es/sbin/cluster/utilities/cl_app_startup_monitor -s testapp_rg1
echo $?

• Bring Resource Online via CSPOC
• Check cluster status
• Remove the monitoring script from cluster configuration and synchronize it

/usr/es/sbin/cluster/utilities/clrmappmon dummymon
/usr/es/sbin/cluster/utilities/cllsappmon
/usr/es/sbin/cluster/utilities/cldare -rt -V 'normal' -C'interactive'