rotational latency

English - English

Definition of rotational latency in English English dictionary: - The delay between when the controller starts looking for a specific block of data on a track and when that block rotates around to where it can be read by the read/write head On the average, it is half of the time needed for a full rotation (about 8 ms ); The amount of time, in milliseconds, for a disk to rotate to a specific disk sector; The delay time from when a disk drive's read/write head is on-track and when the requested data rotates under it; The delay between when the controller starts looking for a specific block of data on a track and when that block rotates around to where it can be read by the read/write head On average, it is half of the time needed for a full rotation (which depends on the rotational speed, or rpm, of the disk); (computer science) the time it takes for a specific block of data on a data track to rotate around to the read/write head

rotational latency