Institute of Research and Journals (IRAJ)
The cloud computing is a technology which is used to provide resources as a service. There are many services provided by cloud provider. They are Software-as-a-Service (SaaS), Platform-as-a-Service (PaaS), Infrastructure-as-a-Service (IaaS), etc. The cloud computing provides the Storage-as-a-Service which is used to backup the users data into cloud. The storage-as-a-service is provided by storage service provider or cloud service provider. This service is provided by cloud service provider which is effective, reliable and cost-effective. The existing backup scheduling provides the reliability by maintaining the same copy of the data twice. The existing backup scheduling provides the reliability and backup speed, but the redundancy of data is not considered.