International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
Cloud computing creates virtual Computing Environment in typical network computing pattern for sharing data and computation. Data is huge and multiple data center need collaboration in deployment and implementation of data intensive application because it is inevitable to transmit data across the different data centers. This Paper introduce cloud computing concept and highlight the various data models supported by existing cloud base storage. Cloud Data Management has to address several challenges, especially when replicated data are concurrently updated at different sites or when the system workload and the resources requested by clients change dynamically.