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      • Novel Architecture Design of Large-Scale Distributed Object Storage System

        Shan Ying,YAO Nian-min 보안공학연구지원센터 2015 International Journal of Grid and Distributed Comp Vol.8 No.1

        A novel architecture design of large-scale distributed object storage system (called DOSS) is proposed. Our design takes several aspects effecting on the overall performance of DOSS into consideration, including an improved model of interaction based on the traditional interactive mode of object-based storage systems, MDS(Metadata Server) management scheme and a load balancing scheme combines the definition of the maximum load for OSD(Object Storage Device), hierarchical model and re-polling in order to solve access of heat objects issues. Our experimental results show that the architecture is an effective way to promote the performance of DOSS.

      • A Cache Design of Load Balancing System for Object-Based Storage

        Shan Ying,Liu Dan,Nian-min Yao 보안공학연구지원센터 2015 International Journal of Multimedia and Ubiquitous Vol.10 No.6

        In design of the object-based storage system, cache design of the server becomes an important guarantee for improving service quality. This paper presents a cache design of load balancing system for object-based storage, which consists of three main aspects. First, the cache update policy is proposed. The strategy considers the overall cache as a pool, consistency and accuracy of updating is ensured through the locking mechanism, while using Bloom Filter combined with the updated time series to achieve updating simplification. Secondly, the cache replacement strategy is introduced which achieving the cache replacement policy using cache spanning tree combined with cache stack. Finally, cache design model is proposed based on energy consumption. Experimental results show that the proposed cache design can improve the efficiency of cache operation in object-based storage system, while reducing energy consumption of cache operation.

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