Analysis on a Cluster Server Virtualization Technology Architecture and Its Performance

The virtualization of sever is an important task in the distributed data management. The virtual integration of servers in network can quickly complete some large-scale computing tasks, reduce costs on hardware, space and energy consumption. The product of multiple-server virtualization has a characteristics of dynamic transfer which can transfer the running virtual sever from one machine to another machine so as to avoid the temporary or long service interruption due to hardware maintenance. Dynamic transfer requires shared storage whose performance increases with the rise of the number of virtual servers, which becomes the bottleneck of the whole system. A virtual server environment that is based on Lustre cluster file system and open source solutions of KVM is proposed as well as implemented in this paper. The results of this experiment confirm that not only the virtual environment has enhanced the input and output performance of virtual server, but also the time for creating KVM user has been significantly shortened.