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Supervised by Ministry of Industry and Information Technology of The People's Republic of China Sponsored by Harbin Institute of Technology Editor-in-chief Yu Zhou ISSNISSN 1005-9113 CNCN 23-1378/T

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Related citation:DIAO Ying,YAO Nian-min.Analysis models and methods on the network storage system I/O performance[J].Journal of Harbin Institute Of Technology(New Series),2012,19(4):37-42.DOI:10.11916/j.issn.1005-9113.2012.04.007.
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Analysis models and methods on the network storage system I/O performance
Author NameAffiliation
DIAO Ying Computer Application Technology, College of Computer Science and Technology, Harbin Engineering University, Harbin 150001, China 
YAO Nian-min Computer Application Technology, College of Computer Science and Technology, Harbin Engineering University, Harbin 150001, China 
Abstract:
Network storage provides high scalability, availability and flexibility for storage systems, and is widely applied to many fields. Particularly, I/O performance is of great significance. Its application is wide and expanding rapidly. I/O performance has already become the bottleneck of the whole performance of computer systems for a long time, and under the condition of the present computer technology, I/O performance optimization method looks especially important. In the paper, I/O performance model was analyzed based on the combination of quasi birth, death process and queuing model, and then solved the model. A number of important related performance indicators and the relationship between them were given. By the way of example, this method can show the I/O performance more accurately. Finally, we got some useful conclusions, which may be used to evaluate network storage performance, and are the basis of confirming I/O scheduling strategy.
Key words:  I/O performance, queuing model, quasi birth and death process, network storage
DOI：10.11916/j.issn.1005-9113.2012.04.007
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