Comment on "Issues and challenges in the performance analysis of real disk arrays"

Comment on "Issues and challenges in the performance analysis of real disk arrays"

We address an analysis of the SCAN disk scheduling, which approximates the mean seek distance as the ratio of maximum distance and disk/spl I.bar/queue+1. We also comment on using the mean seek distance to estimate the mean disk response time.

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Bibliographische Detailangaben
Veröffentlicht in:IEEE transactions on parallel and distributed systems 2005-11, Vol.16 (11), p.1103-1104
Hauptverfasser: Thomasian, A., Chang Liu
Format: Artikel
Sprache:eng
Schlagworte:
Analytical models
Computer errors
Delay
Disk drives
Disk scheduling
Distributed computing
Performance analysis
Robustness
SCAN
SPTF
Throughput
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Zusammenfassung:We address an analysis of the SCAN disk scheduling, which approximates the mean seek distance as the ratio of maximum distance and disk/spl I.bar/queue+1. We also comment on using the mean seek distance to estimate the mean disk response time.
ISSN:1045-9219
1558-2183
DOI:10.1109/TPDS.2005.132