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Towards the automated generation of hard disk models through physical geometry discovery

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Wright, Steven A., Pennycook, Simon J. and Jarvis, Stephen A. (2012) Towards the automated generation of hard disk models through physical geometry discovery. In: 2012 SC Companion : High Performance Computing, Networking, Storage and Analysis (SCC), Salt Lake City, UT, 10-16 Nov 2012. Published in: 2012 SC Companion : High Performance Computing, Networking, Storage and Analysis (SCC) pp. 437-445. ISBN 9781467362184. doi:10.1109/SC.Companion.2012.63

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Official URL: http://dx.doi.org/10.1109/SC.Companion.2012.63

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Abstract

As the High Performance Computing industry moves towards the exascale era of computing, parallel scientific and engineering applications are becoming increasingly complex. The use of simulation allows us to predict how an application's performance will change with the adoption of new hardware or software, helping to inform procurement decisions. In this paper, we present a disk simulator designed to predict the performance of read and write operations to a single hard disk drive (HDD). Our simulator uses a geometry discovery benchmark (Diskovery) in order to estimate the data layout of the HDD, as well as the time spent moving the read/write head. We validate our simulator against two different HDDs, using a benchmark designed to simulate common disk read and write patterns, demonstrating accuracy to within 5% of the observed I/O time for sequential operations, and to within 10% of the observed time for seek-heavy workloads.

Item Type: Conference Item (Paper)
Divisions: Faculty of Science > Computer Science
Journal or Publication Title: 2012 SC Companion : High Performance Computing, Networking, Storage and Analysis (SCC)
Publisher: IEEE
ISBN: 9781467362184
Book Title: 2012 SC Companion: High Performance Computing, Networking Storage and Analysis
Official Date: 2012
Dates:
DateEvent
2012Published
Page Range: pp. 437-445
DOI: 10.1109/SC.Companion.2012.63
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Conference Paper Type: Paper
Title of Event: 2012 SC Companion : High Performance Computing, Networking, Storage and Analysis (SCC)
Type of Event: Conference
Location of Event: Salt Lake City, UT
Date(s) of Event: 10-16 Nov 2012

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