Study of existing cloud data storage Techniques with respect to optimized Duplication: Deduplication

Abstract

Data Deduplication techniques were invented to eradicate duplicate data which result in storage of single copies of data only. Data Deduplication decreases the disk space required to store the back-ups in the storage space, tracks and eliminate the second copy of data inside the storage unit. It allows only one instance data occurrence to be stored originally and then following instances will be given reference pointer to the original data stored. In a Big data storage environment, huge amount of data needs to be secure. For this proper management, work, fraud detection, analysis of data privacy is an important topic to be considered. This paper examines and evaluates the prevailing deduplication techniques and which are presented in tabular form. In this survey, it was observed that the confidentiality and safety of data has been compromised at many levels in prevalent techniques for deduplication. Although much research is being carried out in various areas of cloud computing still work pertaining to this topic is scant.