Highly Available Cloud
During this demonstration, you will witness the high availability features of Red Hat OpenStack Platform 13. I will do an immediate, ungraceful shutdown on one of my 3 OpenStack Controllers and you will see that the cloud stays available at both the service and storage layers. The storage is being provided by Red Hat Ceph.
Understanding Red Hat OpenStack Platform High Availability
https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/13/html-single/understanding_red_hat_openstack_platform_high_availability/
by Kevin Jones
redhat openstack