Upgrading SAP Hardware OS from RHEL 8.1 to RHEL 8.8 in AWS Cluster Environment.

SAP Hardware: OS from RHEL 8.1 to RHEL 8.8 in the cluster environment in AWS. Detailed steps include taking an AMI of each AWS instance, stopping PAS and AAS, stopping the app and DB clusters, initiating the OS upgrade, updating the /etc/yum/vars/releasever, rebooting the hosts, updating the contents of the /lib/ocf/resource.d/heartbeat/aws-vpc-move-ip file, and validating the DB and App Cluster start in a proper state.