启动程序首先向目标发送命令，然后目标解码命令并向启动程序请求数据，或将数据发送给启动程序。

The initiator first sends commands to the target, which decodes the command and then may request data from the initiator or send data to the initiator.

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注意，可以使用sync命令将缓冲区缓存中的请求发送到存储媒体(迫使所有未写的数据发送到设备驱动程序，进而发送到存储设备)。

Note that you can use the sync command to flush the buffer cache out to the storage media (force all unwritten data out to the device drivers and, subsequently, to the storage device).

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我有一个异步套接字服务器，我们接收遥测数据，当远程设备不寄给我们数据，我们有能力来发送命令请求数据。

I have an asynchronous socket server where we receive telemetry data, and when the remote devices do not send us data, we have the ability to send commands to request data.

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我有一个异步套接字服务器，我们接收遥测数据，当远程设备不寄给我们数据，我们有能力来发送命令请求数据。

I have an asynchronous socket server where we receive telemetry data, and when the remote devices do not send us data, we have the ability to send commands to request data.

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