A study on data deduplication techniques for optimized storage

In recent years, the explosion of the data such as text, image, audio, video, data centers and backup data lead to a lot of problem in both storage and retrieval process. The enterprises invest lot of money for storing the data. Hence, an efficient technique is needed for handling the enormous data. There are two existing techniques for eliminating the redundant data in the storage system such as data deduplication and data reduction. Data deduplication is one of the best technique which eliminates redundant data, reduces the bandwidth and also minimizes the disk usage and cost. Various research papers have been studied from the literature, as the result, this paper attempts to summarize various storage optimization techniques, concepts and categories using data deduplication. In addition to this, chunk based data deduplication techniques are surveyed in detail.