Cluster Status, Interpreting Custer Status | HP HA s Software

Monitoring Cluster Resources

Cluster Monitor Reference

Cluster Status

The cluster status is the status of the MC/ServiceGuard cluster to which this node belongs.The status is from the perspective of the node for which the request was created.

The MIB variable hpmcClusterState, which is part of the hp-mcCluster MIB, provides the cluster status information to the monitor.

The cmviewcl -vcommand displays detailed information about the current status of the cluster and packages on the cluster.

Table 3-1		Interpreting Custer Status

	Resource Name		/cluster/status/clusterName

	Condition	Value	Interpretation

	UP	1	The node can access the cluster.

	UNKNOWN	2	The node may be separated from other active cluster elements (for
			example the heartbeat LAN) and has insufﬁcient information to tell if the
			cluster is accessible.

	DOWN	3	The node cannot access the cluster.

You might request to be notiﬁed when the cluster is not up. You could then verify that the cluster was shut down intentionally.

The minimum polling interval for cluster status is 30 seconds. You may want a longer interval, especially if system performance is affected.

Chapter 3

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HP HA s Software manual Cluster Status, Interpreting Custer Status

Contents

B5735-90001 August Using EMS HA Monitors Legal Notices Contents Monitoring Network Interfaces Monitoring Cluster Resources Glossary TroubleshootingMonitoring System Resources Contents B5735-90001 Printing HistoryPrinting Date Part Number Edition Page Publications PrefacePage Installing and Using EMS What are EMS HA Monitors? Event Monitoring Services High Availability Monitors Chapter Role of EMS HA Monitors in a High Availability Environment Installing EMS HA Monitors Installing and Removing EMS HA Monitors Removing EMS HA Monitors Pvpvlink Using EMS HA MonitorsEvent Monitoring Service Resource Class Hierarchy Status AvailMB Event Monitoring Service Screen Screen Selecting a Resource to Monitor Using Wildcards Monitoring Request Parameters Creating a Monitoring Request How Do I Tell EMS When to Send Events? Which Protocols Can I Use to Send Events? What is a Polling Interval? What is a Notiﬁcation Comment? Removing Monitoring Requests Copying Monitoring RequestsModifying Monitoring Requests Service EMS Conﬁguring MC/ServiceGuard Package Dependencies Package Conﬁguration Screen Package Resource Dependencies Screen Resource Parameters Screen Using EMS HA Monitors Monitoring Disk Resources Monitoring Disk Resources Disk Monitor Resource Class Hierarchy Disk Monitor Reference Interpreting Physical Volume Summary Physical Volume Summary Disk Monitor Reference Interpreting Physical Volume and Physical Volume Link Status Physical Volume and Physical Volume Link Status Interpreting Logical Volume Summary Logical Volume Summary Logical volume is DOWN, a complete copy of the data is not Logical Volume StatusInterpreting Logical Volume Status Logical volume is inactive Interpreting Logical Volume Copies Logical Volume Number of Copies Rules for Using the EMS Disk Monitor with MC/ServiceGuard Rules for Using the EMS Disk Monitor with MC/ServiceGuard Pvsummary Calculations Case Conclusion State Rules for RAID Arrays Adding PVGs to Existing Volume Groups Creating Volume Groups on Disk Arrays Using PV Links # mkdir /dev/vgdatabase Creating Logical Volumes Rules for Mirrored Individual Disks Creating Disk Monitoring Requests Disk Monitoring Request Suggestions Parameters When Disks Fail RAID Array Example Resources to Monitor for RAID Arrays Pvgup Return Mirrored Disks Example Resources to Monitor for Mirrored Disks Monitoring Parameters Resource Notify Condition Option Resource Monitoring Parameters Notify Condition Option Resources to Monitor for Lock DisksExample for Interpreting the pvsummary for Mirrored Disks Number Pvsummary Valid Meaning Value Devices Resources to Monitor for Root Volumes Monitoring Cluster Resources Cluster Cluster Monitor ReferenceCluster Monitor Resource Class Hierarchy Interpreting Custer Status Cluster Status Interpreting Node Status Node Status Interpreting Package Status Package Status Creating Cluster Monitoring Requests Monitoring Network Interfaces Interpreting LAN Interface Status Network Monitor ReferenceNetwork Monitor Resource Class Hierarchy Chapter Hour Net/interfaces/lan/status/LANname When value isConﬁguring Network Monitoring Requests 30 sec Monitoring System Resources System Resource Monitor Class Hierarchy System Monitor Reference Resource Name Value Range Interpretation Number of UsersInterpreting Number of Users Resource Name Value Interpretation Range Job QueuesInterpreting Job Queues Resource Name Filesystem Available SpaceFilesystem Available Space Creating System Resource Monitoring Requests 6Troubleshooting EMS Directories and Files Etc/opt/resmon/log EMS Logging Logging and tracing EMS Tracing Performance Considerations System Performance IssuesNetwork Performance Issues Testing Network Monitor Requests Testing Monitor RequestsTesting Disk Monitor Requests Testing Cluster Monitor Requests Making Sure Monitors are Running Glossary Notiﬁcation See alert Glossary Glossary Index Index Index