On-line extraction of SCSI disk drive parameters (1995)
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| Venue: | ACM SIGMETRICS Conference on Measurement and Modeling of Computer Systems |
| Citations: | 142 - 20 self |
BibTeX
@INPROCEEDINGS{Worthington95on-lineextraction,
author = {Bruce L. Worthington and Gregory R. Ganger and Yale N. Patt and John Wilkes and Bruce L. Worthington Y and Gregory R. Ganger Y and Yale N. Patt Y and John Wilkes Z and We Thank John Fordemwalt and Richie Lary},
title = {On-line extraction of SCSI disk drive parameters},
booktitle = {ACM SIGMETRICS Conference on Measurement and Modeling of Computer Systems},
year = {1995},
pages = {146--156}
}
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Abstract
Sophisticated disk scheduling algorithms require accurate and detailed disk drive speci cations, including information on mechanical delays, on-board caching and prefetching algorithms, command processing and protocol overheads, and logical-to-physical block mappings. Comprehensive disk models used in storage subsystem design require similar levels of detail. This report describes a suite of general-purpose techniques and algorithms for acquiring the necessary data from SCSI disks via the ANSI-standard interface. The accuracy of the extracted information is demonstrated by comparing the behavior of a con gurable disk simulator against actual disk drive activity. Detailed measurements extracted from several SCSI disk drives are provided.
Keyphrases
scsi disk drive parameter on-line extraction comprehensive disk model scsi disk several scsi disk drive detailed disk drive speci cation extracted information necessary data command processing on-board caching actual disk drive activity sophisticated disk storage subsystem design general-purpose technique ansi-standard interface mechanical delay protocol overhead algorithm require accurate similar level con gurable disk simulator logical-to-physical block mapping
