基于Xen的开放式半虚拟化集群Linux实验教学环境建设探索

Paravirtualized open Linux experimental instruction clustered environment based on Xen

针对传统Linux实验教学环境存在的系统难以维护、无法为学生提供ROOT权限等问题,通过使用基于Xen的半虚拟化技术,构建了开放式的集群Linux实验教学环境。在这个实验教学环境中,教师可通过基于Web的操作界面进行管理,学生可通过基于VNC的图形界面进行实验及与教师进行实时交互,管理员还可通过Xen的虚拟机动态迁移功能实现集群系统的负载均衡。大大降低了学生操作的难度,增进了实验效率,提高了硬件设备的利用率。

This article presented a paravirtualized open Linux experimental instruction clustered environment in order to replace the traditional Linux experimental instruction environment which is hard to maintain and can not provide students the ROOT privilege. In this experimental instruction environment, teachers can implement administrative operations using Web based interface, while students can do experiments and interactive with teachers using VNC based GUI interface. The load balance in this clustered environment can be implemented via live migration of Xen virtual machines. The proposed environment can reduce the dififculties for students to master Linux, improve efifciency of the experiments and increase the utilization ratio of hardware.