随着程序对该文件进行读写操作，AIX内核将该文件的数据作为非计算性的永久存储分页在内存中进行缓存。

As a program does reads and writes to the file, the AIX kernel caches the file's data in memory as non-computational permanent storage pages.

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对当前技术的保守推断表明，每个书本大小的可移动硬盘(或者等价的非易失性内存芯片)能存储大约60兆字节。

Conservative extrapolation of current technology suggests that match-book size removable hard disks (or the equivalent nonvolatile memory chips) will store about 60 megabytes each.

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