红帽全球峰会备份和恢复 undercloud 和 control plane 节点
Red Hat OpenStack Platform 17.1
创建并恢复 undercloud 和 overcloud control plane 节点的备份
摘要
本指南介绍了如何备份和恢复 Red Hat Openstack Platform (RHOSP)。本指南还介绍了如何对备份和恢复问题进行故障排除。您必须在更新或升级 RHOSP 时创建备份。要备份 RHOSP，您可以使用以下工具之一：
- 快照和 Revert 工具。在创建快照时，保留 RHOSP 集群的原始磁盘状态。根据更新或升级的结果，您可以删除或恢复快照。
- Relax-and-Recover (ReaR)工具。当您使用 ReaR 工具备份环境时，您可以创建 undercloud 节点和 control plane 节点的备份镜像。如果升级或更新过程中出现错误，您可以使用这些备份将这些 undercloud 节点和 control plane 节点恢复到之前的状态。另外，您可以使用 ReaR 工具定期创建环境备份，以便在出现问题时最小化停机时间。
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