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Proceedings Paper

Optimization of mass storage systems by quality of service
Author(s): Chentao Wu; Qiang Cao; Shenggang Wan; Liang Xiao; Dao'an Huo
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Paper Abstract

With the explosive growth of digital information, storage systems are becoming larger and more complicated. Especially in large scale storage systems, they must be able to deliver satisfactory I/O performance (availability, reliability, etc.) under both expected and unexpected workloads, and handle data with real timeliness requirements. However, typical management methods of mass storage systems cannot meet these requirements. One solution is using Quality of Service (QoS) approaches in object-based storage systems. These QoS approaches include Quality of Storage Service (QoSS) framework and QoSS improvements. After researching the QoS requirements and the various data access characterizations in different applications, we designed a QoSS management framework. And then according to this framework, we gave some improvements to efficiently realize QoSS in object-based storage systems. To demonstrate the effectiveness of our proposed solution, we developed a prototype of Attribute-managed Storage System with QoSS (AM-QoSS) by extending both OSD and iSCSI protocols. The measurement results finally show that the proposed QoS management approach achieves optimization of storage systems, such as higher performance and better guaranteed QoS.

Paper Details

Date Published: 19 March 2009
PDF: 5 pages
Proc. SPIE 7125, Eighth International Symposium on Optical Storage and 2008 International Workshop on Information Data Storage, 71251C (19 March 2009); doi: 10.1117/12.821707
Show Author Affiliations
Chentao Wu, Huazhong Univ. of Science and Technology (China)
Wuhan National Lab. for Optoelectronics (China)
Qiang Cao, Huazhong Univ. of Science and Technology (China)
Wuhan National Lab. for Optoelectronics (China)
Shenggang Wan, Huazhong Univ. of Science and Technology (China)
Wuhan National Lab. for Optoelectronics (China)
Liang Xiao, Huazhong Univ. of Science and Technology (China)
Wuhan National Lab. for Optoelectronics (China)
Dao'an Huo, Huazhong Univ. of Science and Technology (China)
Wuhan National Lab. for Optoelectronics (China)


Published in SPIE Proceedings Vol. 7125:
Eighth International Symposium on Optical Storage and 2008 International Workshop on Information Data Storage
Fuxi Gan, Editor(s)

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