Actuator Positioning (Seek Time).

驱动器定位(寻道时间)。

If you add seek time to latency, you get the total access time.

如果执行时间加上查找时间，便会获得全部的存取时间。

Therefore, seek time continues to be the largest source of latency in HDDs.

因此，寻道时间一直是HDD的延迟时间的最主要来源。

Selects the request with the minimum seek time from the current head position.

选择从当前磁头位置所需寻道时间最短的请求。

Seek time typically averages a few milliseconds and is dependent upon the drive type.

寻道时间平均值一般为几毫秒，并且它取决于驱动器类型。