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MASCOTS '99. Proceedings of the Seventh International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (1999)
College Park, Maryland
Mar. 24, 1999 to Mar. 28, 1999
ISSN: 1526-7539
ISBN: 0-7695-0381-0
pp: 305
Enzo Mumolo , Universit? di Trieste
ABSTRACT
Algorithms for performing predictive movements of the disk arm in anticipation of future requests, aimed at reducing the disk access time, are described in this paper. The prediction is based on the past history of the requested disk tracks . A continuum of optimization algorithms have been derived, featuring different prediction performance and, hence, different complexities. Trace driven simulations have shown that relative seek time reduction from about 11% to 23% for a workstation workload can be obtained using anticipatory movements.
INDEX TERMS
hard disk, disk arm, seek time, prediction
CITATION

E. Mumolo, "Prediction of Disk Arm Movements in Anticipation of Future Requests," MASCOTS '99. Proceedings of the Seventh International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems(MASCOTS), College Park, Maryland, 1999, pp. 305.
doi:10.1109/MASCOT.1999.805068
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