基于可信计算的虚拟机迁移完整性度量研究

发布时间：2018-03-30 12:32

本文选题：可信计算　切入点：虚拟机迁移　出处：《山东师范大学》2017年硕士论文

【摘要】：在数字化时代的今天,由众多服务器构成的云计算数据中心中,物理服务器的负载较高或者较低,都将会影响系统整体的利用效率。为了实现整个架构的负载平衡,就须要使用虚拟机的动态在线迁移技术。包含操作系统在内的整个系统运行环境利用虚拟机动态在线迁移技术把从源主机迁移到目的主机上,较好的解决物理机的资源管理和监控的问题,因而使服务器负载平衡,提高了资源利用效率和服务质量,有效地减少了能耗。所以,怎样处理虚拟机在线迁移过程中存在的各种问题成为当前研究的关键所在。本文针对虚拟机迁移过程中不同脏页率环境下的迁移性能进行分析,提出了一种有效提高性能的迁移方法,并验证迁移安全性,研究成果如下:(1)在虚拟机迁移过程中,由于各种原因出现宕机时间和总迁移时间过长的问题,不但增加系统负担,同时影响迁移的稳定性。本文在内存预拷贝迁移算法的基础上,根据内存脏页的特点,计算脏页率,重新排序脏页,同时结合高效的压缩方式进行压缩传输,从而提高虚拟机迁移性能。(2)为确保在线迁移时的完整性,本文基于可信计算模块提供了完整的可信度量,存储度量值,并构建了一条完整的可信链,为迁移时的远程验证提供了平台保证。(3)通过设计不同脏页率环境进行实验,分析了不同环境下算法下的实用性。同时搭建了可信平台,对虚拟机迁移的完整性验证提供了保障,有效提高了虚拟机迁移时的安全性能。
[Abstract]:In the digital age, in the cloud computing data center composed of many servers, the high or low load of the physical server will affect the overall utilization efficiency of the system. The whole system running environment, including the operating system, uses the virtual machine dynamic online migration technology to migrate from the source host to the destination host. Better solve the problem of resource management and monitoring of physical machine, so that the server load balance, improve the efficiency of resource utilization and quality of service, effectively reduce energy consumption. How to deal with all kinds of problems in the process of virtual machine online migration becomes the key of current research. This paper analyzes the migration performance of virtual machine migration under different dirty page rates. In this paper, a migration method to improve performance is proposed, and the migration security is verified. The research results are as follows: 1) in the process of virtual machine migration, the problems of outage time and long total migration time appear due to various reasons, which not only increase the burden of the system, but also increase the system burden. On the basis of the memory pre-copy migration algorithm, according to the characteristics of the dirty pages in memory, the paper calculates the dirty pages rate, resorts the dirty pages, and combines the efficient compression mode for compression transmission. In order to ensure the integrity of online migration, this paper provides a complete confidence level based on trusted computing module, stores the metric value, and constructs a complete trusted chain. This paper provides a platform guarantee for remote verification during migration. (3) by designing different dirty page rate environments for experiments and analyzing the practicability of algorithms in different environments, a trusted platform is built to ensure the integrity verification of virtual machine migration. The security performance of virtual machine migration is improved effectively.
【学位授予单位】：山东师范大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP302

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