rotational latency

1. 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.
   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。
2. The reason is that HDD performance is limited by mechanical constraints such as head movement ( seek time) and rotational latency.
   这是因为HDD的性能受到诸如磁头移动（寻道时间）和旋转等待时间等机械约束的限制。
3. The time it takes to complete an I/ O request ( referred to as disk latency) is a combination of seek time, rotational latency, and disk transfer time.
   而完成一次I/O请求（称为磁盘延迟时间）所需要的时间是寻道时间、旋转延迟时间和磁盘传输时间之和。
4. Because EFDs have no moving parts, they are not constrained by seek time or rotational latency in the way that FC and SATA HDDs are.
   因为EFD没有移动的部件，所以它们不会像FC和SATAHDD那样受到寻道时间或旋转延迟时间的约束。
5. The average rotational latency is one-half of a revolution of the disk platter.
   平均旋转等待时间指的是磁盘旋转一半的时间。

noun

1. (computer science) the time it takes for a specific block of data on a data track to rotate around to the read/write head

   Synonym:    latency