红帽全球峰会第 2 章 块设备命令
rbd 命令允许您创建、列出、内省和删除块设备镜像。您还可以使用它克隆镜像、创建快照、将镜像回滚到快照，查看快照等。
2.1. 先决条件
复制链接链接已复制到粘贴板!
在使用 Ceph 块设备和 rbd 命令之前，您必须满足两个先决条件：
- 您必须有权访问正在运行的 Ceph Storage 集群。详情请查看 Red Hat Ceph Storage 3 安装指南(Red Hat Enterprise Linux 或 Ubuntu 安装指南)。
- 您必须安装 Ceph 块设备客户端。详情请查看 Red Hat Ceph Storage 3 安装指南(Red Hat Enterprise Linux 或 Ubuntu 安装指南)。
重要
手动安装 Ceph 块设备 章节还提供有关在客户端节点上挂载和使用 Ceph 块设备的信息。仅在为 Ceph Storage 集群中的块设备创建镜像后在客户端节点上执行这些步骤。详情请查看 第 2.4 节 “创建块设备镜像”。
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