Show Table of Contents Hide Table of Contents English 日本語 English Multi-page HTML Single-page HTML PDF ePub Backup and restore1. Backing up etcd1.1. Backing up etcd data2. Replacing a failed master host2.1. Removing a failed master host from the etcd cluster2.2. Adding a master host back to the etcd cluster3. Disaster recovery3.1. About disaster recovery3.2. Recovering from lost master hosts3.2.1. Recovering from lost master hosts3.3. Restoring to a previous cluster state3.3.1. Restoring to a previous cluster state3.4. Recovering from expired control plane certificates3.4.1. Recovering from expired control plane certificatesLegal Notice Backup and restore OpenShift Container Platform 4.2Backing up and restoring your OpenShift Container Platform 4.2 clusterRed Hat OpenShift Documentation TeamLegal NoticeAbstract This document provides instructions for backing up your cluster's data and for recovering from various disaster scenarios. 1. Backing up etcd Where did the comment section go?Red Hat's documentation publication system recently went through an upgrade to enable speedier, more mobile-friendly content. We decided to re-evaluate our commenting platform to ensure that it meets your expectations and serves as an optimal feedback mechanism. During this redesign, we invite your input on providing feedback on Red Hat documentation via the discussion platform.