基于可信計(jì)算的虛擬機(jī)遷移完整性度量研究
本文選題:可信計(jì)算 切入點(diǎn):虛擬機(jī)遷移 出處:《山東師范大學(xué)》2017年碩士論文
【摘要】:在數(shù)字化時(shí)代的今天,由眾多服務(wù)器構(gòu)成的云計(jì)算數(shù)據(jù)中心中,物理服務(wù)器的負(fù)載較高或者較低,都將會(huì)影響系統(tǒng)整體的利用效率。為了實(shí)現(xiàn)整個(gè)架構(gòu)的負(fù)載平衡,就須要使用虛擬機(jī)的動(dòng)態(tài)在線遷移技術(shù)。包含操作系統(tǒng)在內(nèi)的整個(gè)系統(tǒng)運(yùn)行環(huán)境利用虛擬機(jī)動(dòng)態(tài)在線遷移技術(shù)把從源主機(jī)遷移到目的主機(jī)上,較好的解決物理機(jī)的資源管理和監(jiān)控的問題,因而使服務(wù)器負(fù)載平衡,提高了資源利用效率和服務(wù)質(zhì)量,有效地減少了能耗。所以,怎樣處理虛擬機(jī)在線遷移過程中存在的各種問題成為當(dāng)前研究的關(guān)鍵所在。本文針對(duì)虛擬機(jī)遷移過程中不同臟頁率環(huán)境下的遷移性能進(jìn)行分析,提出了一種有效提高性能的遷移方法,并驗(yàn)證遷移安全性,研究成果如下:(1)在虛擬機(jī)遷移過程中,由于各種原因出現(xiàn)宕機(jī)時(shí)間和總遷移時(shí)間過長的問題,不但增加系統(tǒng)負(fù)擔(dān),同時(shí)影響遷移的穩(wěn)定性。本文在內(nèi)存預(yù)拷貝遷移算法的基礎(chǔ)上,根據(jù)內(nèi)存臟頁的特點(diǎn),計(jì)算臟頁率,重新排序臟頁,同時(shí)結(jié)合高效的壓縮方式進(jìn)行壓縮傳輸,從而提高虛擬機(jī)遷移性能。(2)為確保在線遷移時(shí)的完整性,本文基于可信計(jì)算模塊提供了完整的可信度量,存儲(chǔ)度量值,并構(gòu)建了一條完整的可信鏈,為遷移時(shí)的遠(yuǎn)程驗(yàn)證提供了平臺(tái)保證。(3)通過設(shè)計(jì)不同臟頁率環(huán)境進(jìn)行實(shí)驗(yàn),分析了不同環(huán)境下算法下的實(shí)用性。同時(shí)搭建了可信平臺(tái),對(duì)虛擬機(jī)遷移的完整性驗(yàn)證提供了保障,有效提高了虛擬機(jī)遷移時(shí)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.
【學(xué)位授予單位】:山東師范大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:TP302
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