2.00. Rotational latency (sometimes called rotational delay or just latency) is the delay waiting for the rotation of the disk to bring the required disk sector under the read-write head. It depends on the rotational speed of a disk (or spindle motor), measured in revolutions per minute (RPM).
Simply so, what is meant by disk throughput?
Input/output operations per second or IOPS (IO/s), throughput (MB/s or MiB/s), and response time (ms) are the common performance measurements for storage devices, such disk drives or RAID sets. Response time is the time it takes for a storage device to process an input-output request.
What is disk latency?
Disk latency refers to the time delay between a request for data and the return of the data. It sounds like a simple thing, but this time can be critical to the performance of a system.
What is the seek time of a hard drive?
Seek Time is measured defines the amount of time it takes a hard drive's read/write head to find the physical location of a piece of data on the disk. Latency is the average time for the sector being accessed to rotate into position under a head, after a completed seek.
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