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Undercloud and Control Plane Back Up and Restore
Red Hat OpenStack Platform 13
Procedures for backing up and restoring the undercloud and the overcloud control plane during updates and upgrades
This guide explains how to install and configure Relax-and-Recover (ReaR) on the undercloud and overcloud control plane nodes; how to back up the undercloud and Control Plane nodes before updates and upgrades; and, how to restore the undercloud and Control Plane nodes if an error occurs while performing updates or upgrades.