Proceedings of the International Conference on Internet Technology and Security
8 A Similarity-Based Data Placement Strategy for Peer-to-Peer Storage and Backup Systems
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Data placement is a fundamental process of P2P storage and backup systems. The data placement strategy should guarantee both fairness and data availability. In this paper, we present a novel data placement strategy based on similarity between nodes, and propose similarity calculation function which classifies the nodes according to their online characters. Both theoretical analysis and simulation result prove that our strategy can increase the data's availability when it is needed and also guarantee fairness.