Abstract: Data generated in electronic format are voluminous in amount, as large generated data can be flexibly stored and accessed when needed by the users. Cloud computing has become the boon and emerging latest distributed computing technology which provides number of on demand services to the cloud users. This survey paper will be focusing more on the factors like security and disaster recovery aspects. The algorithm which will be proposed has two main objectives firstly providing highest security to the cloud users and secondly recovering of the data during natural destruction , paper also focus much on efficiency, time consumption to recover the data , data integrity, cost etc. Few of the recent techniques used for backup and security will be introduced giving a brief description on each of them.
Keywords: Remote server, Seed block, Data backup, Central Repository, Data Dynamics.