云环境中虚拟机迁移策略的分析

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2、lemsofcloudcomputing，whichareverypopularVirtualizationtechnologyisthekeytechniqueforresourcemanagementincloudcomputing，inwhich，thetechniqueandalgorithmofvirtualmachine(VM)migrationareverypopularproblems．ThemaingoalofthisthesisistostudyoptimizationofVMmigrationalgorithm．Inordertoredu

3、ceenergyconsumptionoflarge—scaledatacentersandGuaranteeofuserservice—leveltosomeextent，aoptimizedalgorithmcalledLBESbasedonVMmigrationisintroducedinthepapenThisatgorithmconsiderssomeproblenrssuchastheIcadsi㈣ionofmanykindsofresources．aggregationconflictingandsoon，aimingatthenxofVMmig

4、ration’sopportunity．triggertacticsbasedonforecastmodelisintroduced；aimingatVMgroupwhichliveinphysicalmachinewhichwaitformigration．selectwhichpartⅧscarryonmigrating，Multipleresourceconstrainedselecttacticsisintroduced；andusefixedtacticsbasedonprobabilitymodelsolvingthechoiceofobjecti

5、vepointFurthermore．LEBSalgorithmisanalysedandcometrueiuvirtualclouddatacenterwhichissimulatedinCoudSimExperimentalresultsshowthatLEBSalgorithmismoreexcellentthanothermethodsintheaspectofgaranteeofuserservice—leve】andsaveenergy,ontheconditionofthesamethresholdestablishedKEYWORDScloud

6、datacenter，VMmigration，energysaving，accumulationconflict，Cloudsim邢．．●___．●}．!，ri；．，_1．_．I：⋯叶，．球、予．士。，‘L．．J_1，1j■一H_C^j●i}_r，i、j．L■】ii●l'Ji卜●；i●_、L．目录摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．，IABSTRACT．．．．．．．．．．．，．．．．．．．．．．．．．．．．．．．．．．．．．．．II第一章绪论⋯⋯⋯一⋯⋯⋯⋯⋯⋯．11．1研究背景⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯112相关研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯2】

7、3论文组织⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯4第二章面向能耗优化的技术研究⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯72l能耗评价指标⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯72．1l能耗与有效能耗关系⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯721．2能耗和性能关系⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯72．1．3其他评价指标⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯82,2数据中心的节能方法研究⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一82．2．1降低IT设备能耗⋯⋯．⋯⋯⋯⋯⋯⋯⋯⋯．82．22降低机房空调系统耗能⋯⋯⋯⋯⋯⋯⋯92．23供配电系统的节能⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯92．3宏观体系结构的节能研究⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯92．4面向能耗优化的策

8、略及算法研究⋯⋯⋯⋯⋯⋯⋯⋯⋯102,