Abstract:loud is an emerging technology that stores the necessary data and electronic form of data is produced in gigantic quantity. It is vital to maintain the efficacy of this data the need of data recovery services is highly essential. Cloud computing is anticipated as the vital foundation for the creation of IT enterprise and it is an impeccable solution to move databases and application software to big data centers where managing data and services is not completely reliable. Our focus will be on the cloud data storage security which is a vital feature when it comes to giving quality service. It should also be noted that cloud environment comprises of extremely dynamic and heterogeneous environment and because of high scale physical data and resources, the failure of data centre nodes is completely normal. Therefore, cloud environment needs effective adaptive management of data replication to handle the indispensable characteristic of the cloud environment. Disaster recovery using cloud resources is an attractive approach and data replication strategy which attentively helps to choose the data files for replication and the strategy proposed tells dynamically about the number of replicas and effective data nodes for replication. Thus, the objective of future algorithm is useful to help users together the information from a remote location where network connectivity is absent and secondly to recover files in case it gets deleted or wrecked because of any reason. Even, time oriented problems are getting resolved so in less time recovery process is executed.Keywords: cloud computing, disaster recovery, cloud resources, cloud environment, data replication, and recovery process. I. INTRODUCTIONThere are ample of definitions that describe cloud computing and all these definitions agree on how they can offer services to the network users. Cloud computing is storing, accessing and retrieving data or programs over an internet connection using the computer technology. Cloud is delivery of the on demand computing resources. It means the computing resources like hardware or software is present over the internet on demand as a service.It proposes end number of services to the users of that network like, storage, operations of different kinds, remote printing and a lot more. Usually it involves the internet supplying vigorously ductile and most of all virtualized resources [1].When it comes to the business, they run all types of applications over clouds and cloud computing explained knowledge as well as technology which stores data and use in diverse application and it can be controlled remotely without the requirement of downloading some applications on the computers [2]. A few possible advantages of cloud computing involves the following:1. Cost effectiveness: With the use of operational expenses to enhance computing abilities organizations can reduce greatly on the capital expenses. 2. Scalability: Companies can extend from small deployment to large scale deployment and then scale back if required. The scalability of cl...
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