Xen虚拟机存储方式I/O性能研究

Study on I/O Performance of Xen Virtual Machine Storage Style

虚拟化存储技术是虚拟化技术当中重要的技术之一,可以提高存储利用率和性能,增强存储数据的安全性。针对Xen虚拟机存储虚拟化方式,使用I/O测试软件Iozone对虚拟磁盘镜像存储方式与物理硬盘存储方式的I/O性能进行研究比较,从理论和实验两方面说明了使用虚拟磁盘镜像存储方式和物理硬盘存储方式作为虚拟存储设备在性能和功能上的差异,可为以后根据不同的环境在虚拟机上创建虚拟存储器提供参考依据。

Storage virtualization technology as one of the most important technologies of virtu- alization can improve storage efficency and performance and enhance data security. Based on the Xen storage virtualization style, I/O performance by the virtual disk image storage and by the physical hard disk storage is compared using the I/O test software of Iozone. The results show that there are differences in the performance and function of virtual storage equipment with virtual disk image storage and the physical hard disk storage both theoretically and expevimentally. It can provide a reference frame for creating virtual memory in different environment for future re- search.