如果有多个磁盘，那么把负载分配到不同的磁盘上是加快读写速度的有效方法，因为磁盘延迟的最大组成部分是寻道时间。
If you have several disks, splitting load onto separate spindles is an effective way of making reads and writes faster because the largest component of disk latency is the seek time.
数据传输时间一般几毫秒，所以旋转延迟时间和寻道时间是一个物理hdd的主要磁盘延迟时间来源。
Data transfer times are typically fractions of a millisecond, so rotational latency and seek time are the primary sources of disk latency on a physical HDD.
当应用程序发出磁盘请求的速率快于磁盘返回数据的速率时，操作系统会让磁盘请求排队，还可能调整请求的次序以降低寻道时间。
The operating system queues disk requests when the applications issue them faster than the disks can return the data, optionally reordering them to minimize seeking.
OS磁盘调度演示程序(有图形演示)先来先服务的磁盘调度功能最短寻道时间优先的磁盘调度功能。
OS disk scheduling demo first come first served the shortest seek time disk scheduling priority function of the disk scheduling functions.
OS磁盘调度演示程序（有图形演示）先来先服务的磁盘调度功能最短寻道时间优先的磁盘调度功能。
OS disk scheduling demo first come first served the shortest seek time disk scheduling priority function of the disk scheduling functions.
针对如何提高磁盘调度效率的问题，提出了一种基于平均寻道时间(ast)的磁盘调度优化算法。
To improve the efficiency of disk scheduling, this paper proposed an optimization algorithm of disk scheduling based on the Average Seek Time (AST).
由于它不是以高速旋转的磁盘作为存储介质，数据读写时不需要寻道时间，因此它有着传统硬盘不可比拟的顺序和随机存储速度。
Since it is not using high speed spinning disks as storage media like traditional hard disks, SSD obtains much higher sequential and random access speed than traditional hard disks.
由于它不是以高速旋转的磁盘作为存储介质，数据读写时不需要寻道时间，因此它有着传统硬盘不可比拟的顺序和随机存储速度。
Since it is not using high speed spinning disks as storage media like traditional hard disks, SSD obtains much higher sequential and random access speed than traditional hard disks.
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