Power-虚拟化(高级篇)上

Power虚拟化〔高级篇〕

Power虚拟化方案专家级课程课程内容说明内容概述(PM)IBMPowerVM虚拟化新技术(NPIV/AMS)虚拟化高可用解决方案设计实时迁移解决方案设计IBM虚拟化优势IBM虚拟化案例分享日程IBMPower6虚拟化新技术(NPIV/AMS)NPIVAMS虚拟化高可用解决方案设计实时迁移解决方案设计IBM虚拟化优势IBM虚拟化案例分享N_PortIDVirtualizationN_PortIDVirtualization(NPIV)providesdirectFibreChannelconnectionsfromclientpartitionstoSANresources,simplifyingSANmanagementFibreChannelHostBusAdapterisownedbyVIOSpartitionEachFibreChannelHostBusAdapterport(2portspercard)canbeusedbymanyclientpartitionsSupportedwithPowerVMExpress,Standard,andEnterpriseEditionSupportsAIX5.3andAIX6.1partitionsPower520,550,560,570and595,withan8GBPCIeFibreChannelAdapter.

EnablesuseofexistingstoragemanagementtoolsSimplifiesstorageprovisioning(i.e.zoning,LUNmasking)EnablesaccesstoSANdevicesincludingtapelibrariesPowerHypervisorVIOSVirtualFCAdapterFCAdapterVirtualFCAdapterNPIV的支持VIOSV2.1(PowerVMExpress,Standard,andEnterprise)Power6平台以上LPAROSsupport:AIX(5.3and6.1),Linux(SUSEEnterprise11,orlater)只支持520,550,560,570,595,目前也支持blade支持8GbPCIeHBA卡(#5735)(这块HBA自适应8G,4G,2G,不支持更低的带宽),只支持对switch的连接方式惟一识别的WWPN产生(成对分配,一个在本机使用，另一个在分区迁移后使用)每一个虚拟FCHBA都有一个惟一的，永久的识别码支持分区动态迁移。VIOS可以同时支持NPIV和虚拟SCSI每个支持NPIV的物理HBA最多支持64个虚拟端口。支持HMC和IVM管理的效劳器HypervisorvSCSIFunctionalFlowLVMAIXLVMVSCSI

VSCSItargetVIOS1SANmultipathingDiskDriverLVMVSCSItargetVIOS2multipathingDiskDriverVSCSI

multipathingDiskDriver

fibrechannelHBAs

fibrechannelHBAsHypervisorNPIVFunctionalFlowAIXLVMVFCHBApassthrumoduleVIOS1SANpassthrumoduleVIOS2VFCHBAmultipathingDiskDriver

fibrechannelHBAs

fibrechannelHBAsEMC5000IBMDS8000VIOClientVIOSFCVirtualSCSIFCAdaptersGenericSCSIDiskGenericSCSIDiskCurrentvSCSImodel

VirtualizedDisksVirtualizedDisksVirtualFCN-PortIDVirtualizationVirtualizedFCAdapterPOWER5orPOWER6*AllstatementsregardingIBM'sfuturedirectionandintentaresubjecttochangeorwithdrawalwithoutnotice,andrepresentgoalsandobjectivesonly.SANVIOSFCAdaptersFCEMC5000IBMDS8000FCSANFCVIOClientIBMDS8000EMC5000POWER6DisksNPIV简化SAN管理NPIV–DualVIOSVIOSSVCNPIV

NPIVenabledSANvioclientvSCSIadapterpairDS4000,DS6000,DS8000tapelibraryWWPNHDSEMCNetAppVIOSNPIV

vioclientvioclientvioclientWWPNWWPNWWPNWWPNWWPNLivePartitionMobility(LPM)andNPIVVIOSNPIV

vioclient

WWPNVIOSNPIV

vioclient

vioclientvioclient

WWPNWWPNWWPNWWPNWWPNVIOSNPIV

vioclient

WWPNVIOSNPIV

vioclient

vioclient

vioclient

WWPNWWPNWWPNWWPNWWPNNPIVenabledSANWWPNsareallocatedinpairs1.Hardware–Power6效劳器,微码有要求InstallaminimumSystemFirmwarelevelofEL340_036fortheIBMPower520andPower550,andEM340_036fortheIBMPower560andIBMPower570.–至少一块8GB的PCIe双端口HBA卡(FeatureCode5735)–支持NPIV的SAN交换机只有直接连接在该HBA上的交换机需要支持NPIV，其他交换不需要支持。2.Software–HMCV7.3.4,orlater–VirtualI/OServerVersion2.1withFixPack20.1,orlater–AIX5.3TL9,orlater–AIX6.1TL2,orlaterNPIV的要求HMC7.3.4configureVirtualFCAdapterJustlikevirtualSCSIOnbothClientandServerVirtualI/OServer创立NPIV简单步骤NPIV

Whatyoudo?NPIV

Whatyoudo?OnceCreated:

LPARConfig

ManageProfiles

EditclickFCAdapter

Properties

andtheWWPNisavailable

NPIVcapableswitchisrequired2G,4Gor8G–NPIVconfiguredport

AdapterMUSTbeassignedtoVIOSPort-0Port-1Physical8gbHBAadapterinPower6server日程IBMPower6虚拟化新技术(NPIV/AMS)NPIVAMS虚拟化高可用解决方案实时迁移解决方案IBM虚拟化优势IBM虚拟化案例分享ActiveMemorySharing是什么？ActiveMemorySharingintelligentlyflowsmemoryfromonepartitiontoanotherforincreasedutilizationandflexibilityofmemoryusage

AllstatementsregardingIBM'sfuturedirectionandintentaresubjecttochangeorwithdrawalwithoutnotice,andrepresentgoalsandobjectivesonly.MemoryUsage(GB)TimeWorkloads分区错时顶峰负载MemoryvirtualizationenhancementforPowerSystems和微分区提升CPU的利用率类似，AMS能提升内存的利用率共享池内的物理内存，基于各LPAR的需求，动态的在LPAR之间分配，以优化共享池内的内存的整体利用率支持logicalmemory的over-commitment，超过物理内存的局部会写到pagingdevice上面。适合于多变的内存需求的分区能够更小粒度的来共享物理内存，自动扩展和缩小各分区的物理内存支持OScollaborativememorymanagement，减少hypervisorpagingActiveMemorySharingenhancedthecapabilitiesofPowerVMActiveMemorySharing对系统的要求MemoryUsage(GB)TimeWorkloads系统要求:IBMPowerSystemsserverorbladewithPOWER6processorsEnterprisePowerVMactivationHMCv7.342

servicepack2(V7R3.4.0M2)所有I/O必须通过VIOS来虚拟支持的操作系统:AIX6.1TL3

NoAIX5.3support

SUSELinuxEnterpriseServer11IBMi6.1plusPTF

SI32798ActiveMemorySharingEnablesHigherMemoryUtilizationPartitionswithdedicatedmemoryMemoryisallocatedtopartitionsAsworkloaddemandschange,memoryremainsdedicatedMemoryallocationisnotoptimizedtoworkloadTimeTimeMemory(GB)MemoryUsage(GB)PartitionswithsharedmemoryMemoryisallocatedtosharedpoolMemoryisusedbypartitionthatneedsit,enablinganadditionalpartitiontobeaddedwithinsamememoryfootprintHighermemoryutilizationAllstatementsregardingIBM'sfuturedirectionandintentaresubjecttochangeorwithdrawalwithoutnotice,andrepresentgoalsandobjectivesonly.ActiveMemorySharing应用场景对多种场景，能够基于工作负载级别，对物理系统上可用的内存，进行动态调整:不同的时区〔地域〕，不同的工作负载峰值一天中不同时间的混合负载(e.g.白天跑CRM,晚上跑BATCH)对高整合的工作负载，对内存要求低或者不太有规律的场景，是个理想选择整合PowerSystemshardware,firmwareandsoftwareenhancements来优化资源支持over-commitmentoflogicalmemory支持VIOSmanagedpagingdevices的Overflow用两个VIOS保证冗余支持LivePartitionMobility通过自动调整的方式来提高内存利用率内存在各参与分区间自动重分配启动后就不再需要用户干预比在分区间使用DLPAR来分配内存节省时间MemoryUsage(GB)TimeMemoryUsage(GB)TimeMemoryUsage(GB)Time多LPAR间优化内存方案8GBLoanused8GBLoanused8GBused10GBusedHypervisor–LoaningPagesEachLPARLoansSome(More)MemoryHypervisorasksforhelp多LPAR间均衡内存方案8GBLoanused8GBLoanused8GBused10GBusedHypervisor–StealingPagesVIOSLPARsgetbusysoHypervisortakespagesanywayviaVIOSpaging多LPAR间均衡内存方案8GBLoanused8GBLoanused8GBused10GBusedHypervisor–StealingPagesVIOSEventuallyreachasteadystatewithmemory“flowingbetweenLPARsPowerVMEditionsExpressStandardEnterpriseMaximumLPARs1+2/Server10/Core10/CoreManagementIVMIVM,HMCIVM,HMCVirtualI/OServer

PowerVMLx86

MultipleSharedProcessorPools

LivePartitionMobility

ActiveMemorySharing

让客户更愿意升级到PowerVMEnterpriseEditionContinuestobuildupon40yearsofIBMvirtualizationinnovationandleadershipExtendsPowerVMleadovercompetingvirtualization/consolidationsolutionsActiveMemorySharingaddsvaluetoPowerVMofferingPowerVMper-core价格保持不变为客户提高价值ActiveMemorySharing主要概念SMPartition1

PagingVIOS(1GB)PageIn/OutVASIVirtualizationControlPoint(VCP)SharedMemoryPool:16GBPagingVIOSPagingDevicesSMP1:CurrentMem=12GBEntitledMem:4GBSMP2:CurrentMem=8GBEntitledMem:3GBSMP3:CurrentMem=4GBEntitledMem:1GBSharedMemoryPool(16GB)FreeMemoryPool(5.5GB)HypervisorMemory(1.5GB)DedicatedMemory(9GB)PhysicalMemory(32GB)FCSMPartition2SMPartition3DedicatedMemoryPartition4(8GB)PagingDevicesvSCSIServerCMMCMMCMMSharedMemoryManager(SMM)HypervisorPageLoaningSharedMemoryPool:

存储共享内存分区的内存页的物理内存块集合。PagingDevice:

关联于一个sharedmemorypool的物理或逻辑设备，来为共享内存分区提供pagingspace。SharedMemoryPartition:

关联于一个sharedmemorypool上的分区.I/OEntitledMemory(akaI/Oentitlement):

任一时间，可供sharedmemorypartition来映射I/O使用的物理内存的最大值。MemoryWeight:

0到255之间的一个代表分配给一个分区的物理内存页的优先级的系数。SMPartition1

PagingVIOS(1GB)PageIn/OutVASIVirtualizationControlPoint(VCP)SharedMemoryPool:16GBPagingVIOSPagingDevicesSMP1:CurrentMem=12GBEntitledMem:4GBSMP2:CurrentMem=8GBEntitledMem:3GBSMP3:CurrentMem=4GBEntitledMem:1GBSharedMemoryPool(16GB)FreeMemoryPool(5.5GB)HypervisorMemory(1.5GB)DedicatedMemory(9GB)PhysicalMemory(32GB)FCSMPartition2SMPartition3DedicatedMemoryPartition4(8GB)PagingDevicesvSCSIServerCMMCMMCMMSharedMemoryManager(SMM)HypervisorPageLoaningVirtualizationControlPoint(HMC,IVM,IBMDirector):为用户提供启用sharedmemoryenvironment的界面.

SharedMemoryManager(SMM):hypervisor的一个组件：

动态的在各共享内存分区间分配物理内存。PagingVIOS:一个

VIOS分区，响应SMM的请求，提供对pagingdevice的访问。OperatingSystem:managesI/Oentitlementandprovideshintstohypervisoraboutpageusage.CollaborativeMemoryManager(CMM):响应hypervisor的请求，动态更改分区内存的大小。ActiveMemorySharing主要概念(续)DedicatedProcessorLPARFinance70GBLPAR#3LPAR#1LPARVIOSLPAR#2DedicatedProcessorLPARPlanning105GB105GB105GB5GB60GBPowerHypervisorMicro-PartitionProcessorPoolAIXIBMiLinuxAIXAIXMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMemoryPool:210GBMMMMMMMMMMMMMMMMMMMMMMMMMMMTotalDefinedMemory450GBPhysicalMemory350GBSharedMemoryPool210GB350GBMemoryMAIXActiveMemorySharingConfigurationSharedMemoryPoolPagingDevicesDisk4Disk3Disk2Disk1ActiveMemorySharingConfiguration(cont.)DedicatedProcessorLPARFinance75GBLPAR#3LPAR#1LPARVIOSLPAR#2DedicatedProcessorLPARPlanning105GB105GB105GB5GB60GBPowerHypervisorMicro-PartitionProcessorPoolAIXIBMiLinuxAIXAIXMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMemoryPool:210GBMMMMMMMMMMMMMMMMMMMMMM70GB45GB75GBMMMMMMMMMMMMMMMMMMMMMMMMMMM85GBMMMMMM60GBAIXTotalDefinedMemory450GBSharedMemoryPoolPagingDevicesMMM部署本卷须知Performance基于不同的类型的共享内存的工作负载，性能会不同切换延迟依赖于共享内存分区的使用率，配置的内存和pagingdevice当大量内存在分区间移动的时候，在目标分区会有一个大的延迟当内存需求增长的时候，sharedmemorypool可以动态增加，来防止paging，提高性能。需要监控延迟情况，通过DLPAR来增加内存到sharedpool里面高性能pagingdevices能提高性能建议SolidStateDevices和FASTt节省本钱特定workload和性能要求的系统，对物理内存的需求的降低，可以降低本钱AMS能够比传统方式创立更多的分区只有活泼的在用的内存需要驻守物理内存AMS不再需要管理员手工重新分配内存，可以节省时间和本钱部署本卷须知(续)用途AMS当所有分区同时运行的整体内存集合能够被pool的物理内存支持的情况下，能提供最好的效果分区在错时顶峰负载Variabilityshouldnotleadtoping-pongmemorybetweenpartitions平均内存驻留要求低的WorkloadsOnlyactivelyreferencedpagesareresidentinAMSenvironmentActive/Inactive分区场景一个时间只需要一个分区主备分区(Highavailability)AMS对以下场景不建议使用:对内存驻留有着高的，稳定的需求的workloadAlltheallocatedmemoryisactivelyreferencedFrequentlychangingreferencedmemoryregions对响应时间和性能敏感的workloads有着高度可变性的Workload如果上面所说的workload场景部署的AMS，一定要确保事前多订购一些内存。客户应该在测试环境中测试，理解了AMS的用途之后，才能在生产环境中部署会有白皮书来协助客户的配置启动和优化AMS部署本卷须知(续)OS本卷须知优化OSPagingdevicesActiveMemorySharing只支持4Kpage使用大page的Workload迁移到AMS上会影响性能VIOS本卷须知建议使用独享处理器假设使用微分区，使用比原来规划的更多的处理器授权数量。优化分配给sharedmemorypool的pagingdeviceReducingCostswithActiveMemorySharingIntelligentlyflowmemoryamongpartitionswithvariableworkloadsdemandsReducesmemoryrequirements4PartitionswithDedicatedMemory4PartitionswithSharedMemoryAllstatementsregardingIBM'sfuturedirectionandintentaresubjecttochangeorwithdrawalwithoutnotice,andrepresentgoalsandobjectivesonly.Active/InactivePartitionsRequiredPhysicalMemoryDedicatedMemory36GBSharedMemory14GBDedicatedMemoryCost*40GBx$16K/8GB=$80KSharedMemoryCost*16GBx$16K/8GB=$32KSharedMemorySavings*24GBx$16K/8GB=$48K*Basedoncostof8GBMemoryDimmsCreatingLPARwithSharedMemoryCreatingaMemoryPoolbyHMCCreatingaMemoryPoolConfigurationExampleExample:64GBMachineHypervisor 3GB3x8GBdedicated 24GBVIOSLPAR 2GBKeepspare 3GBMemoryPool

32GBHypervisorVIOSDedicated1Dedicated2Dedicated3MemoryPool32GBConfigurationExampleSharedMemoryLPARsCreate6x8GBmemorypoolLPARs48GBofLogicalMemory32GBofPhysicalMemoryHypervisorVIOSDedicated1Dedicated2Dedicated3MemoryPool32GBSharedMemoryLPARsConfigurationExampleDoesthatwork?States:If4LPARsstarted=itfitsIfResidentSize~32GBitworksIfResidentSize>32GB

pagingIfResidentSize>>32GB

paging++HypervisorVIOSDedicated1Dedicated2Dedicated3MemoryPool32GBSharedMemoryLPARs日程IBMPower6虚拟化新技术(NPIV/AMS)虚拟化高可用解决方案实时迁移解决方案IBM虚拟化优势IBM虚拟化案例分享DualVirtualI/OServerVirtualI/OArchitectureMixofvirtualizedand/orphysicaldevicesMultipleVIOServers*supported

VirtualSCSIVirtualSCSI,FibreChannel,andDVDLogicalandphysicalvolumevirtualdisksMulti-pathandredundancyoptionsBenefitsReducesadapters,I/Odrawers,andportsImprovesspeedtodeployment

VirtualEthernetVLANandlinkaggregationsupportLPARtoLPARvirtualLANsHighavailabilityoptionsAvailableonSystempviatheAdvancedPOWERvirtualizationfeatures.IVMsupportsasingleVirtualI/OServer.AIX5.3,AIX6.1orLinuxPowerVMEthernetBAIX5.3,AIX6.1,orLinuxBB’EthernetB’VirtualI/OServer*VirtualI/OServer*EthernetVirtualEthernetFunctionVirtualEthernetFunctionEthernetVirtualSCSIFunctionVirtualSCSIFunctionFCADynamicHeterogeneousMulti-PathI/ODeliversflexibilityforLivePartitionMobilityenvironmentsProvidesefficientpathredundancytoSANresourcesSupportedbetweenvirtualNPIVandphysicalFibreChannelAdaptersAIX5.3and6.1partitionsPOWER6processor-basedserversPowerHypervisorVIOSFCAdapterVirtualFCAdapterFCAdapterPowerHypervisorVIOSFCAdapterVirtualFCAdapterFCAdapter1)Realadapter2)Virtualadaptertoprepareformobility3)Partitionmovesviavirtualadapter4)RealadapterNPIVNPIVHighAvailabilityVIOSOptionsNetworkInterfaceBackupMustbesetupineachclient.NeedstopingoutsidehostfromeachclienttoinitiateNIBfailover.CanloadshareclientsacrossSEAsbutLPARtoLPARcommunicationswillhappenthroughexternalswitchesVLAN-taggedtrafficisnotsupported.SupportedonlyonAIX.SharedEthernetAdapterFailoverSetupintheVIOS’sonly.OptionalpingisdoneinVIOSonbehalfofallclients.Cannotload-shareclientsbetweentheprimaryandbackupSEA.VLAN-taggedtrafficissupported.SupportedonAIXandLinuxonPOWER.POWER6ServerVIOS1EnetPCIVIOS2EnetPCIPrimaryClientBackupVirtEnetSEASEAPOWER6ServerAIXClientNIBVIOS1EnetPCIVIOS2EnetPCIVirtEnetVirtEnetSEASEAHighAvailability–VirtualEthernetOptions(VIOS)VIOClientLAVIOSNICNICVIOClientNICVIOSLANICNICNICSwitch(s)Switch(s)VIOClientLAVIOSNICSwitch(s)VIOSNICNICNICVIOClientLAVIOSLANICNICSwitch(s)VIOSLANICNICNICNICNIBNIBNote:SomedetailshavebeenomittedtosimplifythediagramsVIOClientNICVIOSNICSwitch(s)VIOSNICSEASEAVIOClientNICVIOSNICSwitch(s)VIOSNICSEASEANICNICNetworkInterfaceBa