Rethinking deduplication in cloud: From data profiling to blueprint

Cloud storage system is becoming the substantial component of the cloud system due to emerging trend of user data. Different from other computing resources, storage resource is vulnerable to the cost issue since the data should be maintained during the downtime. In this paper, we investigate the benefit and overhead when deduplication techniques are adopted to the cloud storage system. From the result, we discuss several challenges across the cloud storage. Furthermore, we suggest the cloud storage architecture and the deduplication engine to optimize the deduplication feature in the cloud storage system. We expect that our suggestions reduce the cloud storage system cost efficiently without performance degradation of data transfer.