Detailed Survey and Discussion on Data and Document Security Concerns in Cloud Computing: Moving from Single cloud to Multi-Clouds

Abstract

Abstract: Now a days in the aura of digitalization everything is on cloud and everyone is using cloud services, storage, resources and software directly or indirectly. Cloud computing is very vast field in engineering and technology. It has given a new direction to computation and storage services. Now a days a company or institute can use high level of computation power even without investing much fund on the infrastructure and resources with the help of cloud computing. In this paper we will survey and discuss most important concern of cloud computing that is security and availability of services provided by cloud.  The confidential details saved for consumers in the cloud considers security to be one of the most crucial facets of the cloud storage world. Users are wondering whether hostile inmates and externals, or collateral harm to their cloud systems, are targeting credibility and the availability of data on the cloud Model. These problems are incredibly important, but security research in cloud storage still has plenty of space. Instead of utilizing single cloud services providers, it suggests and conclude that use of Multi-cloud DB Model (MCDB) is better with respect to security and availability.