DocumentCode :
2559018
Title :
A Novel and Generic Model for Synthesizing Disk I/O Traffic Based on The Alpha-stable Process
Author :
Zou, Qiang ; Feng, Dan ; Yifeng Zhu ; Jiang, Hong ; Ge, Xiaohu ; Zhou, Zhihua
Author_Institution :
Sch. of Comput., Huazhong Univ. of Sci. & Technol., Wuhan
fYear :
2008
fDate :
8-10 Sept. 2008
Firstpage :
1
Lastpage :
10
Abstract :
Obtaining representative and concise I/O workloads for the purpose of projecting the performance of storage systems remains a challenge due to the complex nature of I/O behaviors. Previous studies have shown that disk I/O traffic can be represented as an independent and identically distributed random process in some workloads and a self-similar process in others. Additionally, workloads in the presence of self-similarity can exhibit either Gaussian or non-Gaussian characteristics. This paper proposes a new and generic model based on the alpha-stable process to accurately build a synthetic workload representative of I/O traffic in production storage systems. The novelty of this new model is that it has the capability of characterizing both self-similar Gaussian and non-Gaussian workloads. Experimental results show that this model can accurately capture the complex I/O behaviors of real storage systems and more faithful than conventional models, particularly the burstiness and heavy-tail characteristics under the Gaussian and non-Gaussian workloads.
Keywords :
Gaussian processes; disc storage; storage management; system monitoring; I/O behavior; alpha-stable process; disk I/O traffic synthesis; generic model; nonGaussian characteristics; production storage system; Autocorrelation; Ethernet networks; Laboratories; Predictive models; Production systems; Random processes; Search engines; Stochastic processes; Traffic control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Modeling, Analysis and Simulation of Computers and Telecommunication Systems, 2008. MASCOTS 2008. IEEE International Symposium on
Conference_Location :
Baltimore, MD
ISSN :
1526-7539
Print_ISBN :
978-1-4244-2817-5
Electronic_ISBN :
1526-7539
Type :
conf
DOI :
10.1109/MASCOT.2008.4770586
Filename :
4770586
Link To Document :
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