红帽全球峰会8.2. 文件和目录布局概述
本节介绍 Ceph 文件系统上下文中的文件和目录布局。
文件或目录的布局控制其内容如何映射到 Ceph RADOS 对象。目录布局主要用于为该目录中新文件设置继承布局。
要查看和设置文件或目录布局，请使用虚拟扩展属性或扩展文件属性 (xattrs)。布局属性的名称取决于文件是常规文件还是目录：
-
常规文件布局属性称为
ceph.file.layout。 -
目录布局属性称为
ceph.dir.layout。
布局继承
在创建文件时，文件会继承其父目录的布局。但是，随后对父目录布局的更改不会影响子级。如果目录没有设置任何布局，文件将使用目录结构中的布局从最接近的目录继承布局。
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