VMware技术讲解

2虚拟化的基础知识VMware虚拟化产品简介VMware虚拟化产品重点介绍VMware，Microsoft虚拟化对比VMware产品版本、许可的购买3虚拟化的基础知识4OperatingSystemEnterpriseAppOperatingSystemVMwarevirtualization虚拟化就是在一台物理主机上，同时运行多个操作系统什么是虚拟化5例如：VMwareESXServer，ESXiCitrix（思杰）Xen，RedhatKVMHyper-VServer2008例如：VMwareServer,WorkstationVPC2007,VirtualServer2005R2SunVirtualBox寄居架构（HostedArchitecture）高级架构(“BareMetal”Architecture)两种不同的虚拟化架构方式67微软的虚拟化架构说明89VMWARE虚拟化产品简介10什么是vSphere？11VMware的数据中心产品线虚拟化平台虚拟化基础架构管理运行自动化InfrastructureOptimizationSoftwareLifecycleResourceMgtAvailabilityMobilityDesktopManagementBusinessContinuitySecurityESXServer3i/4iESXServer3.5/4VirtualCenterSiteRecoveryManagerVDIACELabManagerUpdateManagerStorageVMotionVMotionDRSHAVCBDPM12vSphere基础组件13vSphere动态迁移组件14vSphere高可用性组件15vSphere分布式管理组件还有更多的组件、功能正在发布中…16一个完整的vSphere架构示例17VMWARE虚拟化产品重点介绍18ESX3.5和ESX4.0的主要对比数据%ofApplicationsApplication‟sPerformanceRequirementsIOPSNetworkMemoryCPU95%ofapplications100atpeak300KB/s4GBatpeak1to2CPUsESX3.5100,0009Gb/s64GBperVM4VCPUsESX4.0200,000+40Gb/s255GBperVM8VCPUs19可升级的虚拟机可以热添加CPU，Memory可以热添加/删除存储设备网络设备自动扩展的虚拟磁盘64GB4CPUs255GB8CPUsOSAPPESX4.0的主要改进的地方20RelativeScalingRatio51.081vCPU2vCPU4vCPU45.2294.0479.88147.24133.12VMNativeESX4.0上运行SQLServer2008的性能表现ESXachieves90%ofnativeperformanceon4.0vCPUVMWorkloadtransactionlatencyunchangedbetweenESX4.0andNative21通过VMwareHA提供高可用性Whatisit?当物理主机故障的时候，自动在另外一台主机重起故障的虚拟机CustomerImpact所有的应用程序都可以应用，费用最低不需要额外的冷备份硬件不需要昂贵且复杂集群VMwareHA能够给所有的应用提供最高性价比的高可用性资源池X22VMware分布式资源调度（DRS）：按需自动资源调配功能跨资源池动态调整计算资源基于预定义的规则智能分配资源优势使IT和业务优先级对应动态提高系统管理效率自动化的硬件维护动态负载均衡和连续智能优化，保证所有应用需要的的资源资源池ResourcePool业务需求BusinessDemand23VMwareFaultTolerance（容错）VMwarevSphere™OSAPPOSAPPOSAPP主要特征正常运行的时候，有一台“备份”的虚拟机在另外一台主机上，做同步锁定出故障的时候，“备份”的虚拟机自动接替原来的工作与HA的区别恢复时间为0（不需要重起时间）需要额外的冷备份硬件24整个数据中心的灾难恢复生产环境灾难恢复备份环境VMwareInfrastructureVMwareInfrastructure整个站点的恢复管理改变灾难恢复的现状25OSAPPOSAPPOSAPPDPM可以根据工作负荷情况，自动调配资源分配，迁移虚拟机，关闭主机电源，以减少能源消耗。当需要时，通过网络唤醒功能，启动相关主机工作在企业中，白天、晚上、节假日的工作负荷是完全不同的。OSAPPOSAPPOSAPPOSAPPOSAPPOSAPPVMwarevSphere™VMwarevSphere™电力优化提供绿色IT架构当应用需求降低时，DPM自动迁移虚拟机到其他主机，并关闭不需要的物理主机电源当应用需求增加时，DPM重新启动物理主机，并迁移虚拟机，以平衡负载26当需要时，才实际分配存储资源。在Workstation版本早已实现第一次在ESX4平台实现vStorageThinProvisioningESXOSAPPOSAPPOSAPPDatastoreVirtualDisks20GB40GB20GB20GB60GB20GB100GBThickThinThin40GB100GB2728VMWARE，MICROSOFT虚拟化对比29VMwarevSphere与Hyper-V所支持的操作系统对比VMwarevSphere™MSHyper-VWinServer2008(upto4PvSMP)WinServer2003SP2(upto2PvSMP)WinServer2000SP4(1Ponly)SLES10(1Ponly)WindowsVistaSP1WindowsXPProSP2/SP3WindowsNT4.0Windows2000WindowsServer2003WindowsServer2008WindowsVistaWindowsXPRHEL5RHEL4RHEL3RHEL2.1SLES10SLES9SLES8Ubuntu7.04Solaris10forx86NetWare6.5NetWare6.0NetWare6.1DebianCentOSFreeBSDAsianuxSCOOpenServerSCOUnixware…30主要虚拟化产品的功能对比HardwareScaleOutVirtualHardware(VM)ScaleOutCPUEfficiencyMemoryEfficiencyPowerEfficiencyStorageUsageEfficiencyx4-wayonWin08only64GBvRAMNetworkManagementEfficiencyx32logicalcores128GBRAMAutomatedPatchingEfficiency~24logicalcores1TBRAM64logicalcores512GBRAM8-wayvCPU255GBvRAMxReq.HW-assistforWinReusegen-OSschdlerxRequiresHW-assistReusegen-OSschdlerCPUHW-assistorBTVirt-specificschedulerxMemoryHW-assistNoovercommitmentxMemoryHW-assistNoovercommitmentMemoryHW-assistOvercommit/sharingxNoCluster-levelMgmtxNoCluster-levelMgmtDPM:Cluster-levelpowermanagementxOnlyvia3rdpartystoragevendorxNonexNoneDistributedswitch3rdpartyvirtualswitchxHostpatching,butnoautoguestpatchingxHostpatchingcausesVMdowntimeTransparenthostpatchAutoguestpatchingxThindisks,butnomonitoringtoolsThinprovisioningMonitoringtoolsHot-add/removeVirtualResourcesAdd:vCPU,vMemAdd:virtualdiskxNonexNohot-addCPU,memAdd:virtualdisk~8-wayvCPU32GBvRAMNewcapabilityinVMwarevSphereNote:ManyimprovementswerealsomadetoexistingVI3capabilities31ControlforServerMaintenanceControlforStorageMaintenanceControlofResourceAllocationFaultToleranceforVMsControlduringNICFailureThinHypervisortoReduceAttackSurfaceBetterSecuritythanPhysicalxNothingcomparableVMwareEnhancedStoragevMotionx3rdpartyforDRSNologicalpoolsxProTipshasdowntimeNologicalpoolsVMwareDRSLogicalResourcePoolxPromisedfeaturehasn’tshippedyetxNoVM-levelprotectionVMwareFaultTolerancexXenServer1.8GBdiskfootprintxHyper-Vw/ServerCore2GBdiskfootprintVMwareESXi70-100MBdiskfootprintxNothingcomparablexNothingcomparableVMwareVMSafeAPI3rdpartysupportxReliesonnetworkvendortoprovideIntegratedNICteamingxNothingcomparablexQuickMigrationcausesdowntimeVMwarevMotion(w/EnhCompatibility)XenMotionControlduringHostorVMFailureControlduringEntireSiteFailurexOnlyforhostfailure1-VM-per-LUNissueVMwareHAUpto32nodesxNothingcomparablexGeo-clusteringhasnoworkflow,testing,auditVMwareSiteRecoveryManager~Supported,butmayrequireCLItoconfigure~OnlyforhostfailureUpto16nodesNewcapabilityinVMwarevSphereNote:ManyimprovementswerealsomadetoexistingVI3capabilities主要虚拟化产品的功能对比32ChoicethruGuestOSSupportChoicethruHardwareSupportChoicethruApplicationSupportIntegratingwithExistingMgmtToolsChoicein“Cloud”ServiceProviderInteroperabilitybetweenInternal&ExternalCloudChoiceinUsingExistingAppsintheCloudx20O