驱动器定位(寻道时间)。
选择从当前磁头位置所需寻道时间最短的请求。
Selects the request with the minimum seek time from the current head position.
寻道时间平均值一般为几毫秒，并且它取决于驱动器类型。
Seek time typically averages a few milliseconds and is dependent upon the drive type.
内部边缘(inneredge)通常具有最短的寻道时间。
应该寻找比较长的寻道时间，因为它们会导致应用程序性能降低。
Look for long seek times, as they can result in decreased application performance.
应该寻找比较长的寻道时间，因为它们会导致应用程序性能降低。
Look for long seek times, as they can result in decreased application performance.
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