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›› 2011, Vol. 28 ›› Issue (6): 759-767.DOI: 10.7523/j.issn.2095-6134.2011.6.009

• Research Articles • Previous Articles     Next Articles

CDRS:an adaptive cost-driven replication strategy in cloud storage

XU Jing, YANG Shou-Bao, WANG Shu-Ling, LIU Xiao-Qian   

  1. School of Computer Science and Technology, University of Science and Technology of China, Hefei 230026, China
  • Received:2010-11-02 Revised:2010-12-27 Online:2011-11-15

Abstract:

Considering the new problems in cloud storage environment, such as wide location, dynamic characteristic, pursuit of commercial interests, and trade-off between consistency and availability, we propose a dynamic cost-driven replication strategy (CDRS). By introducing cost in market mechanism and considering load balancing and the trade-off between consistency and availability comprehensively, this strategy operates adaptively on replication and achieves the goal of minimizing replication cost and maximizing replication profit. The experimental results show that CDRS has a better performance in both replication profit and load balancing.

Key words: cost-driven, geographic feature, adaptive, cloud storage

CLC Number: