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微软多数节点集集群官方文档.ppt


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MajorityNodeSetsupportinMicrosoftWindows Server 2003clusters SteveMathias PremierServices MicrosoftCorporation1ObjectivesThispresentationwilldiscussanewfeatureofMicrosoft®WindowsServer™2003clustersnamedMajorityNodeSet(MNS).Thispresentationassumesabasicknowledgeofserverclustering(MSCS).2AgendaWhatisMNS?MNSisdesignedforahandfulofkeyscenarios:ClustersthathavegeographicallydispersedclusternodesClustersthatdonotrequirea“shareddisk”Purposeofaquorumresource:ArbitrationStorage3Agenda(continued)DefinehowMNSbehavesasaquorumresourceSampledeploymentofaMNSserverclusterDefinewhereMNSisconfiguredWhattoconsiderwhenusingMNSBasictroubleshootingoftheMNSresource4MNS WhatisMNS?MNSisanewquorum- Scenario:“mirroring”: Scenario::Applicationscanfailoverandhaveconfigurationinformationstoredonthecluster,,- PurposeofaquorumresourceGenerallyspeaking,aquorumresourcemustprovidetwokeyfunctions:Arbitration,, Purposeofaquorumresource:arbitrationArbitrationofthequorumresourceishowtheclusterserviceprevents“split-brain.”Inasplit-municationfailurescauseaclustertobreakintodisjointpartitionsofnodes,andeachpartitionwantstoindividuallyactasthecluster. Exampleofsplit-brain:Bothnodesinatwo-nodeclusterbr

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  • 时间2019-01-21