Cloud Storage and Data De-Duplication

Rendering efficient storage and security for data is very important for cloud. With the rapidly increasing data produced worldwide, networked and multi-user storage systems are becoming very popular. However, concerns over data security still prevent many users from migrating data to remote storage. Data deduplication refers to a technique for eliminating redundant data in a data set. In the process of deduplication, extra copies of the same data are deleted, leaving only one copy to be stored. Data is analysed to identify duplicate byte patterns to ensure the single instance is indeed the single file. Then, duplicates are replaced with a reference that points to the stored chunk. Data deduplication Data deduplication is a technique to reduce storage space. By identifying redundant data using hash values to compare data chunks, storing only one copy, and creating logical pointers to other copies instead of storing other actual copies of the redundant data. Deduplication reduces data volume so disk space and network bandwidth can be reduced which reduce costs and energy consumption for running storage systems Figure 1: Data de-duplication View Data deduplication is a technique whose objective is to improve storage efficiency. With the aim to reduce storage space, in traditional…

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