A magnetic disk drive has the following characteristics. 10,000 RPM spin rate 2n head-to-head switch time 3microseconds average track-to-track-seek time. 5 platters, 1024 tracks per platter side, recorded on both sides 50 sectors per track on all tracks A sector size of 512 bytes What is this drive’s average access time (assuming movement over half the tracks and half the sectors in track)?

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter5: Data Storage Technology
Section: Chapter Questions
Problem 1PE
Question

A magnetic disk drive has the following characteristics.

  • 10,000 RPM spin rate
  • 2n head-to-head switch time
  • 3microseconds average track-to-track-seek time.
  • 5 platters, 1024 tracks per platter side, recorded on both sides
  • 50 sectors per track on all tracks
  • A sector size of 512 bytes
    1. What is this drive’s average access time (assuming movement over half the tracks and half the sectors in track)?
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