大多数边界是很明显的：网络连接、进程与进程的通信、文件系统、操作系统接口等等，但是有些边界就不好辨别。
Most boundaries are obvious: network connections, process-to-process communication, file systems, operating system interfaces, and so on, but some boundaries are more subtle.
本文还对在开发新的文件系统或者将现有的文件系统移植到AIX操作系统时所使用的接口和方法进行了简单的说明。
Brief explanations are also included of the interfaces and methods when developing a new file system, or when porting an existing file system to the AIX operating system.
这个库接口并不依赖于文件系统的实现细节，但是也可以在其他内核接口稍有不同的操作系统上使用。
The library interface does not rely on implementation details of the file system, but can also be used on other operating systems that might have a different kernel interface.
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