Linux Pacemaker: linuxOS-pacemaker-05 error - awsdeqnval000s   
During the patching activity, the server/node was rebooted as part of the maintenance process. Post reboot, an alert was triggered, which was monitored and verified. 
Upon validation: 
 
The server is up and running successfully 
The cluster status is healthy and operational 
No issues observed from the OS/cluster end.