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A Buffered Disk Subsystem

  • Tadeusz Gruźlewski
Conference paper
Part of the Informatik-Fachberichte book series (INFORMATIK, volume 286)

Abstract

The paper presents an analysis of buffered disk subsystems. First, the waiting time to start the service of an IO request is modelled. The model shows that the waiting time is negligible. This is a motivation to model a buffered disk subsystem. The average response time in such a subsystem can be reduced by 50%, and throughput can be doubled in comparison to a standard subsystem.

Key words

disk subsystem buffered disks performance analysis queueing modeling Markov process 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1991

Authors and Affiliations

  • Tadeusz Gruźlewski
    • 1
  1. 1.Institute of InformaticsWarsaw UniversityWarszawa 59Poland

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