HP Serviceguard manual Multiple Paths with Different Media

Page 10

Arbitration for Data Integrity in Serviceguard Clusters

To Arbitrate or Not to Arbitrate

Figure 3

Multiple Paths with Different Media

 

Note that the configuration could be expanded to include multiple disk

 

links plus multiple LAN links, as in Figure 4. Such a configuration

 

would require the loss of at least 4 links for the heartbeat to be lost.

Figure 4

Additional Multiple Paths with Different Media

10

Image 10
Contents Arbitration For Data Integrity Serviceguard Clusters Manufacturing Part Number B3936-90078 JulyLegal Notices Arbitration for Data Integrity in Serviceguard Clusters Cluster Membership Concepts MembershipCluster Membership Concepts Quorum Split-BrainTie-Breaking No Arbitration-Multiple Paths To Arbitrate or Not to ArbitrateMultiple Heartbeat Failures No Arbitration-Multiple Media Single Node FailureMultiple Paths with Different Media Additional 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 Use of a Lock Disk as the Cluster Lock Lock Disk OperationSingle Cluster Lock Dual Cluster LockUse of a Lock LUN as the Cluster Lock Oot Irror Lock LUN OperationUse of a Quorum Server as the Cluster Lock Quorum Server OperationSetting up the Quorum Server Running the Quorum ServerSpecifying a Quorum Server Quorum Server Status and StateViewing Quorum Server Status and State Viewing Quorum Server System DataUse of Arbitrator Nodes Use of Arbitrator NodeExtended Distance Clusters Arbitration in Disaster-Tolerant ClustersMetropolitan Clusters Arbitrator Nodes Quorum ServerContinental Clusters Use of Dual Lock Disks in Extended Distance 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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