Science & Engineering Research Support soCiety (SERSC)
Cloud service, as one of major technologies in modern IT business, has attracted a lot of attentions from academia and industry. Due to the dynamics of user demands, service providers need VM (Virtual Machine) provisioning mechanism to estimate the amount of resources demanded by cloud users in the next time interval and to prepare the resources elastically. In this paper, the authors describe issues of VM provisioning and introduce the state-of-the-art technologies for each issue. Besides, for the efficient VM provisioning, they propose a cost function to calculate the total expense of a service provider under workload fluctuation.