A review on data replication strategies in cloud systems

Data replication constitutes an important issue in Cloud data management. In this context, a significant number of strategies have been proposed for systems. Most the studies literature classified these into static vs. dynamic or centralised decentralised strategies. paper, we propose new classification It takes account several other criteria, specific to environments: (i) orientation profit, (ii) considered objective function, (iii) tenant objectives, (iv) nature environment and (v) consideration economic costs. Dealing with last criterion, focus on provider's profit energy consumption by provider. Finally, impact some factors is investigated simulation study.