That may appear extreme, but one needs to consider the hierarchy of a file system that consumes an exabyte of storage.

这是极端情况，我们还需要考虑文件系统的层次结构，因为它的最大存储容量为1 EB。

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Object storage devices then become flat namespaces of objects, where hierarchy (if necessary) is built higher up in the storage system stack.

于是，对象存储设备成为对象的平面名称空间（flat namespace），必要时，在存储系统栈中的更高层建立层次结构。

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Introduces the idea of hierarchy storage management and proposes some technical solutions to current problems.

介绍层次化存储管理的概念，并结合当前实际提出了相应的技术实施途径。

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For years the storage hierarchy has been basically the same: memory, cache, disk.

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Solid state storage has become a permanent part of the storage hierarchy, improving the overall performance and reducing energy use in a growing number of storage-intensive applications and systems.

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Those interested in digital storage and the development of consumer, computer and enterprise technology will want to keep their eyes peeled for development next week and in the future as very useful solid state storage devices assumes greater importance in the overall digital storage hierarchy.

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