Guaranteed Quality of Service using Double Resource Renting Scheme in Cloud Computing

Cloud computing, also on-demand computing, is a kind of Internet-based computing that provides shared processing resources and data to computers and other devices on demand. It is a model for enabling ubiquitous, on-demand access to a shared pool of configurable computing resources e.g., networks, servers, storage, applications and services, which can be rapidly provisioned and released with minimal management effort. Mostly single long term renting scheme is used for configuration of a cloud service platform under given market demand. There are many disadvantages of this single long term scheme. It cannot guarantee the service quality as well as maximum resource waste happen. To over come this problem double resource renting scheme is designed. In this short-term renting and long-term renting are combined to solve the single long term renting scheme issues. M/M/m+D queuing model is used for service system. A profit maximization problem is formulated for the double renting scheme and the optimized configuration of a cloud platform is obtained by solving the profit maximization problem.