双活数据中心与灾备解决方案技术部分PPT推荐.pptx

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双活数据中心与灾备解决方案技术部分PPT推荐.pptx

双活数据中心与灾备解决方案-技术部分,臧铁军VMware,GCHCOE云架构师,议程,2,基于虚拟化技术的业务连续性解决方案概览,本地站点,灾备站点,基于虚拟化层的异步复制基于硬件设备的同异步复制自动化应用切换管理城域集群,应用感知的高可用性关键应用零停机保护在线迁移虚拟机,动态调配计算与存储资源VMotionandStorageVMotion,高效的数据备份与恢复可通过运行计划与脚本实现自动化操作,灾难恢复,本地高可用,数据保护,方案特点与应用程序和操作系统无关与硬件设备无关完善的保护简单,经济,3,议程,4,双活数据中心在各个级别上全面保障可用性,5,双活数据中心总体架构,双活存储集群,站点A,站点B,延伸的vSphere集群,200km,行为与单个vSphere相同延伸距离最大200KM,通常小于50KM通过VMwareHA与vMotion实现自动的DR保护需要双活存储集群,如EMC的vPlex,NetApp的MetroCluster等,6,计算资源设计,MakinganApplicationServiceHighlyAvailable,vSphereHAvSphereAppHA,8,VMwarevFabrictcServer,vSphereAppHA,Policy-based,Protectoff-the-shelfapps,9,FaultTolerancevs.HighAvailability,FaulttoleranceAbilitytorecoverfromcomponentlossExample:

@#@HarddrivefailureHighavailability,X,10,支持多vCPU的容错技术,InstantaneousFailover,4vCPU,4vCPU,vSphere,Primary,Secondary,FastCheckpointing,11,长距离vMotion,vSphere6.0支持跨三层网络和跨vCenterServer的vMotions,12,vCenterAvailability,RunvCenterServerapplicationinaVMRunvCenterServerdatabaseinaVMRunbothinsameVM?

@#@ProtectwithvSphereHAvCenterandDBVMrestartprioritysettoHighEnableguestOSandAppmonitoringAppHAcanprotectSQLServerdatabaseBackupvCenterServerVManddatabaseImage-levelbackupforvCenterServerVMApp-levelbackupusingagentfordatabasebackup,13,网络资源设计,双活数据中心网络架构,15,NSXvSphereMulti-SiteUseCases,NSXforvSpheresupports3differentMulti-SiteDeploymentModelsVXLANwithStretchedClusters(vSphereMetroStorageCluster)VXLANwithSeparateClustersL2VPNAllsolutionsprovideL2extensionoveranL3network,enablingworkload&@#@IPmobilitywithouttheneedtostretchVLANsLocalegressissupported,howeveritdoesaddcomplexityTheappropriatedeploymentmodelwilldependoncustomerrequirementsandtheirenvironment,NSX利用层叠网络实现双活数据中心,双活存储vSphere城域存储集群,数据存储1,数据存储2,vCenterServer,三层网络,站点A,站点B,17,VMwareNSXMulti-SiteSingleVC,StretchedCluster,SolutionDetailRequiresasupportedvSphereMetroStorageClusterconfigurationInavMSCdeployment,storageisActive/Activeandspansbothsites.ExamplesofActive/Activestorageare:

@#@EMCVPLEX,NetAppMetroCluster(seeVMwareHCLformoreinformation)StretchedclusterssupportLivevMotionofworkloadsUseL3forallVMkernelnetworks:

@#@Management,vMotion,IPStorageAllmanagementcomponentssuchasvCenterServer,NSXManagerandControllersarelocatedinSiteALatencyandbandwidthrequirementsaredictatedbyvMSCstoragevendor,eg10msRTTforVPLEXwhichalsoalignswithvMotionusingEnterprisePlusvMSCenablesdisasteravoidanceandbasicDisasterRecovery(withouttheorchestrationortestingcapabilitiesofSRM)LossofeitherNSXComponentsortheDatacenterInterconnectwillresultsinafallbacktodataplanebasedlearningusingexistingnetworkstate.ThereforethereisnooutagetodataforwardingandwithoutvCenterServer,therearenoVMprovisioningormigrationoperationsNSXandvMSCarecomplimentarytechnologiesthatfitasweetspotforNSX(SinglevCenterServer),VMwareNSXMulti-SiteSingleVC,StretchedCluster,ClusterConfigurationvMSCenablesstretchedclustersacrosstwophysicalsitesInanNSXdeploymentManagement,EdgeandWorkloadclustersareallstretchedUndernormalconditionsallManagementComponentsruninaSiteAandareprotectedbyvSphereHATheyareautomaticallyrestartedatSiteBintheeventofasiteoutage.ThemanagementnetworkisnotstretchedandmustbeenabledonSiteBaspartoftherecoveryrunbookDependentondesign,NSXEdgeServicesGatewaysareeitheractiveinbothsitesorasinglesiteandcanalsoleverageHAVMsintheWorkloadClustersareautomaticallyrecovered,19,VMwareNSXMulti-SiteSingleVC,StretchedCluster,InavMSCenvironment,DRSisusedtobalanceresourceutilization,providesiteaffinity,improvedavailabilityandensureoptimaltrafficflowUseShouldrules,ratherthanMustasthisallowsvSphereHAtotakeprecedenceExampleDRSGroups,RulesandSettingsforNSXEdges:

@#@,VMwareNSXMulti-SiteSingleVC,StretchedCluster,NSXConfiguration(Option1-Preferred)TransportZonespansbothSitesandVXLANLogicalSwitchesprovideL2connectivitytoVMsDistributedLogicalRoutingisusedforallVMstoprovideconsistentdefaultgatewayvMACLocalEgressisprovidedbyusingseparateUplinkLIFsandEdgeGWspersite.HostsonSiteAhaveDLRdefaultgatewayconfiguredviaSiteAEdgeGWusingnet-vdrCLI.WhileSiteBDLRdefaultgatewayisviaSiteBEdgeGWCaveat:

@#@DynamicRoutingcannotbeenabledonDLR,orastaticroutesetviaNSXManagerNSXEdgeGatewayswillhaveastaticrouteforanynetworksdirectlyconnectedtoDLR.ConsistentIPaddressingwillsimplifyroutingbyallowingasupernettobeusedDFWprovidesvNICpolicyenforcementindependentoftheVMslocation,VM1,VM2,VM3,WebLogicalSwitch172.16.10.0/24,SiteA,SiteB,DistributedLogicalRouter,VM4,VM5,AppLogicalSwitch172.16.20.0/24,SiteANSXEdgeGW192.168.10.1,SiteBNSXEdgeGW192.168.20.1,UplinkNetA192.168.10.0/29UplinkALIF192

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