基于对象的虚拟外存管理  

Object-Based Virtual External Storage Management

作　　者：郭玉东[1] 董卫宇[1] 王晓睿[1] 

机构地区：[1]信息工程大学信息工程学院,河南郑州450002

出　　处：《信息工程大学学报》2011年第1期119-124,共6页Journal of Information Engineering University

摘　　要：为解决多虚拟机环境中的外存管理问题,研究了基于虚拟机监控器的多虚拟机结构,概括出多虚拟机环境中外存空间的隔离与保护、外存空间的按需分配和外存空间的扩展等主要外存管理问题。借鉴虚拟内存管理思想和基于对象的网络存储协议,提出了一种虚拟外存管理系统的设计方案,有效地解决了外存管理中的上述问题。实验表明,虚拟分区可以动态创建和撤销,分区的容量可以根据实际需要动态增长,并可实现基于分区的写保护,外存管理的灵活性大大增加,外存空间的利用率大大提高。The architecture of multiple virtual machines based on virtual machine monitor is studied to deal with the problem of external storage management in multiple virtual machine environment.Also summarized are the primary problems of external storage management,such as the isolation and protection,demand-based allocation,and extension of the external storage space in multiple virtual machine environment.A system design scheme of external storage management is proposed with the idea of virtual memory management and protocol of object-based network storage,thus solving the problem of external storage management mentioned above effectively.Experiments show that virtual partition can be created and repealed dynamically,the capability of partition can be increased dynamically with practical requirement,and write protection based on partition can also be realized,flexibility of external storage management is enhanced greatly and usage efficiency is also increased notably.

关 键 词：操作系统结构 外存管理 虚拟化 虚拟外存 基于对象的网络存储 

分 类 号：TP311.11[自动化与计算机技术—计算机软件与理论]