The clients may perform direct I/O given receipt of the layout, and the NFSv4.1 server handles metadata management and storage.

客户端可能执行直接 I/O ，给出布局的回执，而 NFSv4.1 服务器处理元数据管理和存储。

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The CreateIoCompletionPort function associates an I/O completion port with one or more file handles.

CreateIoCompletionPort函数会使一个I/O完成端口与一个或多个文件句柄发生关联。

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This function is invoked from the I/O processor thread context, hence should be implemented in a way that it consumes minimal amount of time, as the same thread handles multiple sessions.

调用此函数从I / O处理器线程上下文，因此应该采取一种方式，它消耗最少量的时间，相同的线程处理多个会话执行。

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