磁盘的输出显示了各个物理磁盘（在合适的情况下包括 NFS 加载）的工作情况，通常以每秒处理事务数和每秒传输的 MB 或 KB 作为单位。

Disk output shows how busy the individual physical disks (including NFS mounts, if applicable) are, usually in transactions per second and MB or KB transferred per second.

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我们将使用- m选项，该选项以兆字节为单位显示值，还有- o选项，该选项忽略缓冲区信息，以便显示更多的输出。

We will be using the options -m, which displays the values in megabytes, and -o, which suppresses buffer information, allowing a more readable output.

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输入、输出都有标注，显示的数据都有单位。

Inputs and outputs are labeled and Numbers are displayed with units.

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