Necessity of Incentive System for the First Uploader in Client-Side Deduplication

摘要

Client-side deduplication technique is a useful tool for efficient storage management in DB-related services. The technique permits a server to save his storage and a client to store his data without actually uploading it. In this paper, we review client-side deduplication and show that selfish clients can make the technique useless if there is no incentive system by examining some possible scenarios where selfish clients do not follow pre-defined procedure for client-side deduplication. We also give a simple example of incentive system which can be the beginning of the research for the above described issue.