NDLI: Adaptive disk striping for parallel input/output

Content Provider	IEEE Xplore Digital Library
Author	Simitci, H. Reed, D.A.
Copyright Year	1999
Description	Author affiliation: Dept. of Comput. Sci., Illinois Univ., Urbana, IL, USA (Simitci, H.)
Abstract	As disk capacities continue to rise more rapidly than transfer rates, adaptive, redundant striping smoothly trades capacity for higher performance. We developed a fuzzy logic rule base for adaptive, redundant striping of files across multiple disks. This rule base is based on a queuing model of disk contention that includes file request sixes and disk hardware parameters. At low loads, the rule base stripes aggressively to minimize response time. As loads rise, it stripes less aggressively to maximize aggregate throughput. This adaptive striping rule base is incorporated into our second generation Portable Parallel File System (PPFS II). Experimental results showed that the analytical models of disk striping are capable of accurately predicting file system behavior. Also, it is shown that; depending on the access pattern, adaptive striping can double the input/output performance compared to striping with fixed distribution parameters.
Starting Page	88
Ending Page	102
File Size	1618669
Page Count	15
File Format	PDF
ISBN	0769502040
ISSN	10519173
DOI	10.1109/MASS.1999.829996
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-03-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	File systems Fuzzy logic Analytical models Hardware Contracts Adaptive systems Computer science Delay Aggregates Throughput
Content Type	Text
Resource Type	Article

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