HP Serviceguard guide

	Arbitration for Data Integrity in Serviceguard Clusters
	Arbitration in Disaster-Tolerant Clusters
	A dual lock disk configuration is shown in Figure 9.
Figure 9	Dual Lock Disk Configuration

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HP manual Arbitration for Data Integrity in Serviceguard Clusters

Contents

Manufacturing Part Number B3936-90078 July Arbitration For Data Integrity Serviceguard Clusters Legal Notices Arbitration for Data Integrity in Serviceguard Clusters Membership Cluster Membership Concepts Cluster Membership Concepts Split-Brain Quorum Tie-Breaking Multiple Heartbeat Failures To Arbitrate or Not to ArbitrateNo Arbitration-Multiple Paths Single Node Failure No Arbitration-Multiple Media Additional Multiple Paths with Different Media Multiple Paths with Different Media No Arbitration-Risks Startup and Re-Formation How Serviceguard Uses ArbitrationCluster Startup Cluster Lock Dynamic Cluster Re-FormationCluster Quorum and Cluster Locking No Cluster Lock Lock Requirements Lock Disk Operation Use of a Lock Disk as the Cluster Lock Dual Cluster Lock Single Cluster Lock Use of a Lock LUN as the Cluster Lock Lock LUN Operation Oot Irror Quorum Server Operation Use of a Quorum Server as the Cluster Lock Running the Quorum Server Setting up the Quorum Server Quorum Server Status and State Specifying a Quorum Server Viewing Quorum Server System Data Viewing Quorum Server Status and State Use of Arbitrator Node Use of Arbitrator Nodes Metropolitan Clusters Arbitration in Disaster-Tolerant ClustersExtended Distance Clusters Quorum Server Arbitrator Nodes Use of Dual Lock Disks in Extended Distance Clusters Continental Clusters Disk area is not mirrored Arbitration for Data Integrity in Serviceguard Clusters Comparison of Different Arbitration Methods Arbitration Advantages Disadvantages ModeSummary Arbitration for Data Integrity in Serviceguard Clusters Summary