A Review on Applying Tier in Multi Cloud Database (MCDB) for Security and Service Availability

Providing safety to the data stored in the cloud should be prioritized and henceforth remains a crucial part of the cloud ecosystem. Security of the end users data from both insiders as well as outsiders is an important factor of a cloud server. Dynamic provisioning of services is a problem. To fulfil the criteria of multilayered applications, virtualization based services are used at SLA (Service-Level-Agreement). To meet the stringent and highly secure facilities of the web apps it is extremely necessary to move cloud computing from solo to many domains.