服务器虚拟化的优缺点分析及趋势

摘要

服务器虚拟化技术存在几种不同的实现技术,但其核心思想是一致的,即在提升物理服务器可用性、简化维护的同时,降低企业的IT开销.通过虚拟化软件,将服务器物理资源抽象成逻辑资源,变物理服务器为几台甚至几十台相互隔离的虚拟服务器.详细分析了服务器虚拟化后所带来的优缺点,并对其发展趋势作了展望.%Server virtualization is a frontier tech in the IT field and includes several different kinds of implement methods that have consistent core idea that says increasing the utilization and simplifying the maintainability of the physical servers when decreasing the IT costs. With the virtualization software, the physical resources are transformed to logical resources and several physical severs could host dozens of virtualized ones. In this thesis, the advantages and disadvantages brought by virtualization are detailed analyzed and prospects its trends as well.