Multi-Cloud Hosting For Performance Optimization and Security

Many organizations and enterprises stores data into the cloud to reduce maintenance cost and also to increase reliability of data. While hosting their data into cloud, customer faces many cloud vendors as well as their pricing policies so that the customer may get confused with which cloud(s) are suitable for storing data. CHARM propose a data hosting scheme which combine two key functions- first function is selecting a cloud to store data in minimum cost and guaranteed availability and second is triggering transition process to re-distribute data. It can do according to pricing of clouds and variations of data patterns. While sending data to Third-Party administrative control in cloud, it also becomes an issue related to security. We need high security measures to protect data in a cloud so we use DROPs concept that solves security and performance issue. In this we divide data into fragments and replicate that fragments into cloud nodes and each node contain only a single data. All these nodes are separated with a certain distance using graph T-colouring. Using this security and performance optimization is done.