Typically, the hierarchical file structure is more space-efficient but more difficult to use.

层级式档案架构具备较节省空间的特性，但较难使用。

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Buckets cannot contain other buckets, so the hierarchical structure of the Nirvanix file system isn't supported.

由于存储桶不能包含其他的存储桶，因此并不支持Nirvanix文件系统的层次结构。

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Using file shares that provide only a hierarchical directory structure as a means of organizing content.

将只提供一个层次目录结构的文件共享作为内容组织方式使用。

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