Key challenges and research direction in cloud storage

Abstract Cloud computing has gained the importance in recent time because of its unique characteristics like elasticity, resilience in delivering compute, storage, network, and resource management in form of utility services over the Internet. Cloud computing area has attracted attention and interest due to the ever-increasing demand for reliable and cost-effective infrastructure and service delivery. This paper primarily focuses on the survey of issues and open challenges of cloud database in cloud computing storage. The aim of this survey is to provide a perspective to a researcher a general overview of issues, open challenges, and future trends in cloud storage with primarily focuses on cloud databases. The paper also tabulates comparison of different methods and approaches of researchers in tackling issues pertaining to data availability through data replication, data partitioning, data management, and data placement under the context of cloud enabled technologies.