红帽全球峰会19.9. undercloud 和 overcloud 启动顺序
要启动 Red Hat OpenStack Platform 环境，您必须按照以下顺序启动 undercloud 和 overcloud：
- 启动 undercloud
- 启动 Controller 节点
- 启动 Ceph Storage 节点
- 启动 Compute 节点。
- 启动 overcloud Compute 节点上的实例
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