Institute of Research and Journals (IRAJ)
In this paper, the authors give study of data deduplication technique and how to secure data on cloud with deduplication scheme. Data deduplication is single instance data storage widely used in cloud storage system to reduce space and upload bandwidth. Duplication-less storage system which deduplicates the data using file level deduplication and block level deduplication. The deduplication is done at source where data is generated and at target where data is stored that is cloud storage system. The deduplication storage system deduplicates data with application awareness index structure.