FCoE及存储整合.pptx

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1、保持存储最佳实践，无论使用什么样的连接保持数据流量工程设计原则提升可靠性，冗余性及速度保证基于角色的访问控制增加距离，吞吐量及灵活性减少部署和开通的时间给客户选择而不是被迫选择聚合存储网络意味着...一次布线，无限连接NASiSCSIFCFCoENASiSCSIMDS/Nexus统一网络FCFCoE7/25/2021CiscoSystemsInc.3I/OconsolidationPhase1(Mid2008)ReductionofserveradaptersSimplificationofacces

2、slayer&cablingGatewayfreeimplementation–fitsininstalledbaseofexistingLANandSANL2MultipathingAccess–DistributionLowerTCOFewerCablesInvestmentProtection(LANsandSANs)ConsistentOperationalModelToday:ParallelLAN/SANInfrastructureInefficientuseofNetworkInfrast

3、ructure5+connectionsperserver–higheradapterandcablingcostsAddsdownstreamportcosts;cap-exandop-exEachconnectionaddsadditionalpointsoffailureinthefabricLongerleadtimeforserverprovisioningMultiplefaultdomains–complexdiagnosticsManagementcomplexityI/OConsol

4、idationEnhancedEthernetandFCoEEthernetFCLANSANBSANATodayI/OConsolidationwithFCoELANSANBSANANexus5000EthernetIPNetworkStackComparisonTCPiSCSIFCIPFCoEFCFCPSCSIPHYSICALWIRESCSIiSCSIFCIPFCoEFCLessOverheadthanFCIP,iSCSIFibreChanneloverEthernetWhatenablesit?1

5、0GbpsEthernetLosslessEthernetMatchesthelosslessbehaviorguaranteedinFCbyB2BcreditsEthernetjumboframesMaxFCframepayload=2112bytesEthernetHeaderFCoEHeaderFCHeaderFCPayloadCRCEOFFCSSameasaphysicalFCframeControlinformation:version,orderedsets(SOF,EOF)Normalet

6、hernetframe,ethertype=FCoEUnifiedFabricWhy?CanyounameonetechnologythatyoucanguaranteewillbeintheDataCenterin5years?It’sEthernet!!!CostperbyteforstoragetrafficwillbecheaperandmoreflexibleoveranEthernetfabricDCB“VirtualLinks”AnexampleVL1VL2VL3LAN/IPGateway

7、VL1–LANService–LAN/IPVL2-NoDropService-StorageAbilitytosupportQoSqueueswithinthe“lanes”CampusCore/InternetStorageAreaNetworkPriorityFlowControlFibreChanneloverEthernetFlowControlPacketR_RDYFibreChannelTransmitQueuesEthernetLinkReceiveBuffersEightVirtual

8、LanesOneOneTwoTwoThreeThreeFourFourFiveFiveSevenSevenEightEightSixSixSTOPPAUSEB2BCreditsEnableslosslessEthernetusingPAUSEbasedonaCOSasdefinedin802.1pWhenlinkiscongested,CoSassignedtoFCoEwillbePAUSEdsotrafficwillnotbedroppe