Average Rotational Latency

The half of the time required for one revolution is called average rotational latency. Average rotational latency can be defined by the ratio of time for 1 rotation divided by 2.

Average Rotational Latency = Time for 1 revolution / 2

Rotational Latency

The time required by the read/write head to move from the current sector to the desired sector is called the rotational latency. The rotational latency can be calculated by dividing the angle between the current sector and the desired sector by the rotational frequency.

The formula for calculating the rotational latency is given by:

Rotational latency = (angle between current sector and desired sector) / Rotational frequency

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Average Rotational Latency

The half of the time required for one revolution is called average rotational latency. Average rotational latency can be defined by the ratio of time for 1 rotation divided by 2....

How to Find Average Rotational Latency?

Below are the steps to find average rotational latency:...

Important Points on Rotational Latency

Rotational latency can be minimized if the sectors are adjacent. Rotational latency depends on the disk’s rotation speed given in RPM i.e., Rotation Per Minute. Rotational latency is also called as the Rotational Delay. The delay for the rotation of disk to bring the desired sector under read/write head is called rotational latency. The Rotational latency depends on the speed of the spindle of the disk. The number of sectors in one track can be covered in one rotation of the disk....

Solved Examples on Rotational Latency

Example: Calculate the average rotational latency if disk rotation is 6000 RPM....

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What is Rotational Latency of Disk?...

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