HP manual Arbitration For Data Integrity Serviceguard Clusters

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Arbitration For Data Integrity in

Serviceguard Clusters

Manufacturing Part Number : B3936-90078

July 2007

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Contents Manufacturing Part Number B3936-90078 July Arbitration For Data Integrity Serviceguard ClustersLegal Notices Arbitration for Data Integrity in Serviceguard Clusters Membership Cluster Membership ConceptsCluster Membership Concepts Split-Brain QuorumTie-Breaking No Arbitration-Multiple Paths To Arbitrate or Not to ArbitrateMultiple Heartbeat Failures Single Node Failure No Arbitration-Multiple MediaAdditional Multiple Paths with Different Media Multiple Paths with Different MediaNo Arbitration-Risks Cluster Startup How Serviceguard Uses ArbitrationStartup and Re-Formation Cluster Quorum and Cluster Locking Dynamic Cluster Re-FormationCluster Lock No Cluster Lock Lock Requirements Lock Disk Operation Use of a Lock Disk as the Cluster LockDual Cluster Lock Single Cluster LockUse of a Lock LUN as the Cluster Lock Lock LUN Operation Oot IrrorQuorum Server Operation Use of a Quorum Server as the Cluster LockRunning the Quorum Server Setting up the Quorum ServerQuorum Server Status and State Specifying a Quorum ServerViewing Quorum Server System Data Viewing Quorum Server Status and StateUse of Arbitrator Node Use of Arbitrator NodesExtended Distance Clusters Arbitration in Disaster-Tolerant ClustersMetropolitan Clusters Quorum Server Arbitrator NodesUse of Dual Lock Disks in Extended Distance Clusters Continental ClustersDisk area is not mirrored Arbitration for Data Integrity in Serviceguard Clusters Summary Arbitration Advantages Disadvantages ModeComparison of Different Arbitration Methods Arbitration for Data Integrity in Serviceguard Clusters Summary
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