计算机工程与科学2011，Vol.33Issue(5)：54-58,5.DOI:10.3969/j.issn.1007-130X.2011.05.011
虚拟机管理器中面向虚拟块设备的一种通用快照扩展机制
A Mechanism of Extending the Generic Snapshot Capability for the Virtual Block Devices in Virtual Machine Monitors
摘要
Abstract
Based on the characteristics of diversity of virtual block devices and requirements for the capabilities of high availability and fault tolerance, we propose a mechanism of extending the generic snapshot capability for the virtual block devices(VBD) in virtual machine monitors for the mainstream virtual machine(VM) architectures.Based on the mechanism, we can provide uniform and extensible snapshot services for the multiple VBDs in the VM environments while avoiding taking much efforts in modifying the low-level multiple specific VBD drivers.Based on a Linux system, we have extended the generic snapshot capability for QEMU to prove the feasibility of the extending mechanism, and have measured and analyzed the effects that snapshot brings to the VM performance through our experiments.关键词
虚拟机管理器/虚拟块设备/快照/高可用Key words
virtual machine monitor / virtual block device / snapshot/ high availability分类
信息技术与安全科学引用本文复制引用
陈彬,蔡志平,肖侬,褚福勇..虚拟机管理器中面向虚拟块设备的一种通用快照扩展机制[J].计算机工程与科学,2011,33(5):54-58,5.基金项目
国家973计划资助项目(2007CB310900) （2007CB310900）
国家自然科学基金重点项目(60736013) （60736013）
国家自然科学基金资助项目(61070198,60903040) （61070198,60903040）
