HP HA s Software manual When Disks Fail

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	Monitoring Disk Resources
	Creating Disk Monitoring Requests
	Assume you have a great need to know the status of your system at all times. You
	would need a short polling interval, perhaps between 30 and 120 seconds. (If you
	notice the disk monitor consumes too much CPU, you may want to set a longer
	polling interval.) Assume also that you want an Initial event sent to make sure the
	request is conﬁgured properly. You would want to set the Return option to send an
	event when disks come back up. You would conﬁgure the events to use opcmsg
	(ITO) protocol because you use HP OpenView IT/Operations as your system
	management tool. The parameters for your monitoring request would look like
	Figure 2-3.
Figure 2-3	Example: Conﬁguring /vg/vgName/pv_pvlink/status Parameters to Notify
	When Disks Fail

All requests are created in a similar way. You need to make sure you perform these steps for all instances in all volume groups you want to monitor.

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Chapter 2

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Contents Using EMS HA Monitors B5735-90001 AugustLegal Notices Contents Monitoring Cluster Resources Monitoring Network InterfacesGlossary TroubleshootingMonitoring System Resources Contents B5735-90001 Printing HistoryPrinting Date Part Number Edition Page Preface PublicationsPage Installing and Using EMS Event Monitoring Services High Availability Monitors What are EMS HA Monitors?Chapter Role of EMS HA Monitors in a High Availability Environment Installing and Removing EMS HA Monitors Installing EMS HA MonitorsRemoving EMS HA Monitors Status AvailMB Using EMS HA MonitorsEvent Monitoring Service Resource Class Hierarchy PvpvlinkEvent Monitoring Service Screen Selecting a Resource to Monitor ScreenUsing Wildcards Creating a Monitoring Request Monitoring Request ParametersHow Do I Tell EMS When to Send Events? What is a Polling Interval? Which Protocols Can I Use to Send Events?What is a Notiﬁcation Comment? Removing Monitoring Requests Copying Monitoring RequestsModifying Monitoring Requests Conﬁguring MC/ServiceGuard Package Dependencies Service EMSPackage Conﬁguration Screen Package Resource Dependencies Screen Resource Parameters Screen Using EMS HA Monitors Monitoring Disk Resources Monitoring Disk Resources Disk Monitor Reference Disk Monitor Resource Class HierarchyPhysical Volume Summary Interpreting Physical Volume SummaryDisk Monitor Reference Physical Volume and Physical Volume Link Status Interpreting Physical Volume and Physical Volume Link StatusLogical Volume Summary Interpreting Logical Volume SummaryLogical volume is inactive Logical Volume StatusInterpreting Logical Volume Status Logical volume is DOWN, a complete copy of the data is notLogical Volume Number of Copies Interpreting Logical Volume CopiesRules for Using the EMS Disk Monitor with MC/ServiceGuard Rules for Using the EMS Disk Monitor with MC/ServiceGuard Rules for RAID Arrays Pvsummary Calculations Case Conclusion StateCreating Volume Groups on Disk Arrays Using PV Links Adding PVGs to Existing Volume Groups# mkdir /dev/vgdatabase Creating Logical Volumes Rules for Mirrored Individual Disks Creating Disk Monitoring Requests Disk Monitoring Request Suggestions Parameters When Disks Fail Resources to Monitor for RAID Arrays RAID Array ExamplePvgup Return Resources to Monitor for Mirrored Disks Mirrored Disks ExampleMonitoring Parameters Resource Notify Condition Option Number Pvsummary Valid Meaning Value Devices Resources to Monitor for Lock DisksExample for Interpreting the pvsummary for Mirrored Disks Resource Monitoring Parameters Notify Condition OptionResources to Monitor for Root Volumes Monitoring Cluster Resources Cluster Cluster Monitor ReferenceCluster Monitor Resource Class Hierarchy Cluster Status Interpreting Custer StatusNode Status Interpreting Node StatusPackage Status Interpreting Package StatusCreating Cluster Monitoring Requests Monitoring Network Interfaces Interpreting LAN Interface Status Network Monitor ReferenceNetwork Monitor Resource Class Hierarchy Chapter 30 sec Net/interfaces/lan/status/LANname When value isConﬁguring Network Monitoring Requests HourMonitoring System Resources System Monitor Reference System Resource Monitor Class HierarchyResource 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 Logging and tracing EMS LoggingEMS Tracing Performance Considerations System Performance IssuesNetwork Performance Issues Testing Cluster Monitor Requests Testing Monitor RequestsTesting Disk Monitor Requests Testing Network Monitor RequestsMaking Sure Monitors are Running Glossary Notiﬁcation See alert Glossary Glossary Index Index Index