红帽全球峰会1.4. DCN 边缘
使用分布式计算节点架构，您可以在中央站点部署控制节点，并使用这些控制器管理地理分散的边缘站点。当您部署边缘站点时，您仅部署计算节点，这将使边缘站点架构与 Red Hat OpenStack Platform 的传统部署不同。当您在边缘站点启动实例时，所需的镜像会自动复制到本地镜像服务(glance)存储中。您可以使用 glance 多存储在实例启动期间节省时间，从而将镜像从中央镜像存储复制到边缘站点。如需更多信息，请参阅具有多个存储的镜像服务。
在边缘站点：
- control plane 服务在中央位置远程运行。
- Pacemaker 不会在 DCN 站点中运行。
- 块存储服务(cinder)以主动/主动模式运行。
- etcd 部署为分布式锁定管理器(DLM)。
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