Server Consolidation Schemes in Cloud Computing Environment: A Review

Abstract

Cloud computing is a new paradigm which deliver computing resources as utility. Datacenters as cloud infrastructure encounter with several issues such as power management for the sake of economic viewpoint. Researches show that high rate of power wastage in large scale datacenters is related to sprawl resource usage making low utilization. More recently, server consolidation techniques have been developed to maximize resource utilization in at least used number of physical servers. This technique is applied in virtualization environment which allows physical servers to host several operating systems and related applications. Server consolidation approach abstracts system under study into NP-hard bin-packing problem. Several works have been done in literature to solve server consolidation problem. This paper analyses the papers and compare them with parameters derived from research context. Commonalities and differences are argued. Then, open issues and challenges are concluded to work in future.