HP Serviceguard manual Viewing Quorum Server Status and State, Viewing Quorum Server System Data

Page 23

Arbitration for Data Integrity in Serviceguard Clusters

Use of a Quorum Server as the Cluster Lock

Viewing Quorum Server Status and State

If the cluster is using a quorum server for tie-breaking services, you can use the cmviewcl command to display the server name, state, and status following the entry for each node, as in the following excerpt from the output of cmviewcl -v:

CLUSTER STATUS

clus-lp up

NODE	STATUS	STATE
lp1	up	running
Quorum Server Status:
NAME	STATUS	STATE
lp-qs	up	running
...
NODE	STATUS	STATE
lp2	up	running
Quorum Server Status:
NAME	STATUS	STATE
lp-qs	up	running

Viewing Quorum Server System Data

You can also log on to the quorum server system itself and use the ps command to confirm that the qs process is running. In addition, you can view data about connections from cluster nodes in the quorum server log file.

23

Image 23

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 Multiple Heartbeat Failures To Arbitrate or Not to ArbitrateNo Arbitration-Multiple Paths Single Node Failure No Arbitration-Multiple MediaAdditional Multiple Paths with Different Media Multiple Paths with Different MediaNo 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 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 NodesMetropolitan Clusters Arbitration in Disaster-Tolerant ClustersExtended Distance 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 Comparison of Different Arbitration Methods Arbitration Advantages Disadvantages ModeSummary Arbitration for Data Integrity in Serviceguard Clusters Summary

Related manuals

Manual 407 pages 39.81 Kb