Ceph使用一个有趣的备选，而不是依赖分配列表(将磁盘上的块映射到指定文件的元数据)。
Rather than rely on allocation lists (metadata to map blocks on a disk to a given file), Ceph USES an interesting alternative.
作为PM采用的一个部分，EPMO通常会引出对常规、计划的报告，个别报告及其内容，及分配列表的需求。
As part of PM adoption, an EPMO typically works to elicit needs and requirements for regular, scheduled reporting, the individual reports and their contents, and a distribution list.
管理员也可以为每个工作节点分配访问控制列表，进一步在工作节点级别上进行安全控制。
An administrator can also assign an access control list to each work node for additional security control at the work node level.
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