Study of the performance of RPS

  • Authors:
  • Abbas Rafii

  • Affiliations:
  • Stanford University

  • Venue:
  • ACM SIGMETRICS Performance Evaluation Review
  • Year:
  • 1976

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Abstract

The objective of this study is to evaluate the impact of RPS (Rotational Position Sensing) on the response time and utilization of multiple spindle disk drives with a shared channel. Simulation models are used to compare the effectiveness of the RPS scheme with the systems without RPS capability. Analytical models for the number of RPS rotation misses and the utilization of the channel at the saturation point are given.