HP EMS HARDWARE S B6191-90028 manual Hardware Monitoring Terms, Term Definition

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Introduction

Hardware Monitoring Overview

Hardware Monitoring Terms

The following terms are used throughout this guide. Understanding them is important when learning how the hardware event monitors work and how to use them effectively.

Table 1-1 Hardware Monitoring Terms

Term	Definition

Asynchronous event	The ability to detect an event at the time it occurs. When an
detection	event occurs the monitor is immediately aware of it. This
	method provides quicker notification response than polling.

Default monitoring	The default monitoring configuration created when the EMS
request	Hardware Monitors are installed. The default requests
	ensure that a complete level of protection is automatically
	provided for all supported hardware resources.

Event Monitoring	The application framework used for monitoring system
Service (EMS)	resources on HP-UX 10.20 and 11.x. EMS hardware monitors
	use the EMS framework for reporting events and creating
	PSM monitoring requests. The EMS framework is also used
	by EMS High Availability monitors.

EMS hardware	The monitors described in this manual. They monitor
monitors	hardware resources such as I/O devices (disk arrays, tape
	drives, etc.), interface cards, and memory. They are
	distributed on the Support Plus Media and are managed
	with the Hardware Monitoring Request Manager
	(monconfig).

EMS high availability	These monitors are different than EMS hardware monitors
(HA) monitors	and are not described in this manual. They monitor disk
	resources, cluster resources, network resources and system
	resources. They are designed for a high availability
	environment and are available at additional cost. For more
	information, refer to Using EMS HA Monitors, which can be
	downloaded from http://docs.hp.com/hpux/ha/

Event severity level	Each event that occurs within the hardware is assigned a
	severity level, which reflects the impact the event may have
	on system operation. The severity levels provide the
	mechanism for directing event notification. For example, you
	may choose a notification method for critical events that will
	alert you immediately to their occurrence, and direct less
	important events to a log file for examination at your
	convenience. Also, when used with MC/ServiceGuard to
	determine failover criteria, severe and critical events cause
	failover.

Hardware event	Any unusual or notable activity experienced by a hardware
	resource. For example, a disk drive that is not responding, or
	a tape drive that does not have a tape loaded. When any such
	activity occurs, the occurrence is reported as an event to the
	event monitor.

Chapter 1

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Contents Manufacturing Part Number B6191-90028 September EMS Hardware Monitors Users GuideLegal Notices Printing History Page Contents Hardware Monitor Configuration Files Using the Peripheral Status MonitorSpecial Procedures Contents About This Manual Related Web Site Introduction Hardware Monitoring Overview What is Hardware Monitoring?Components Involved in Hardware Monitoring How Does Hardware Monitoring Work?Benefits of Hardware Monitoring Products Supported by Hardware Monitors Tips for Hardware Monitoring Term Definition Hardware Monitoring TermsHardware Monitoring Terms Hardware Monitoring Terms Introduction Hardware Monitoring Overview Chapter Installing and Using Monitors Steps Involved Steps for Installing and Configuring Hardware Monitoring Supported System Configuration Installing EMS Hardware MonitorsRemoving EMS Hardware Monitors Product Model/Product Special Number Requirements Checking for Special RequirementsDisk Arrays Tape Products all supported by the Scsi Tape Devices Monitor Disk ProductsFibre Channel Scsi Multiplexers High Availability Storage SystemsProduct Model/Product Special Requirements Number Fibre Channel AdaptersFibre Channel Arbitrated Loop FC-AL Hub System Fibre Channel SwitchMemory Others Interface CardsSome Monitoring Request Examples Using Hardware Monitoring RequestsWhat Is a Monitoring Request? Building a Monitoring Request To run the Monitoring Request Manager, type Running the Monitoring Request ManagerEnabling Hardware Event Monitoring Severity Levels Notification Method Default Monitoring Requests13 Default Monitoring Requests for Each Monitor To list the descriptions of available monitors Listing Monitor DescriptionsTo view or show the current monitoring requests Viewing Current Monitoring RequestsTo add a monitoring request Adding a Monitoring RequestSetting Description 14 Monitoring Requests Configuration Settings15 Event Severity Levels Event Description MC/ServiceGuard Severity Response LevelEvent Severity Levels Example of Adding a Monitoring Request == ADD Comment To modify a monitoring request Modifying Monitoring RequestsVerifying Hardware Event Monitoring Events = Checking Detailed Monitoring StatusSample Event Message Retrieving and Interpreting Event MessagesTo delete a monitoring request Deleting Monitoring RequestsDisabling Hardware Event Monitoring To disable hardware event monitoringDetailed Description Hardware Monitoring Architecture Detailed Picture of Hardware MonitoringHardware Monitoring Request Manager Components from Three Different ApplicationsStartup Client EMS Hardware Event MonitorPolling or Asynchronous? Peripheral Status Monitor PSM Event Monitoring Service EMSDirectories and Files Description File Locations1File Locations Monitoring Startup Process Startup Process in DetailDisabling Monitoring Event Decoding Asynchronous Event Detection in DetailAsynchronous Event Detection Process Memory Monitor Polling FC-AL Hub and FC Switch Polling ProcessesEvent Polling in Detail Monitoring Polling Process Memory Monitor Polling Process Detailed Picture of Hardware Monitoring Chapter Using the Peripheral Status Monitor Peripheral Status Monitor Overview How Does the PSM Work? Peripheral Status Monitor PSM States PSM ComponentsPSM Resource Paths PSM StatusHow Does the PSM Work? Chapter To create a package resource dependency Configuring Package Dependencies using SAMResourcepollinginterval Resourceupvalue =UP From the Actions menu select Add Monitoring Request Creating EMS Monitoring Requests for PSMTo create a PSM monitoring request Setting the Polling Interval Polling Interval Specifying When to Send Event NotifyMonitoring Request Parameters Determining the Frequency of Events OptionsOpcmsg ITO Selecting Protocols for Sending Events Notify ViaCritical Major Minor Normal To set the opcmsg ITOTCP and UDP To set the Snmp trapTo set the TCP or UDP conditions To set for email notificationAdding a Notification Comment Comment Copying Monitoring Requests To change the monitoring parameters of a request To remove monitoring requests Removing Monitoring RequestsFrom the Actions menu select View Monitoring Request Viewing Monitoring RequestsTo view the parameters for a monitoring request Example 4-1 Example of Using setfixed Using the setfixed Utility to Restore Hardware UP StateTo restore the operating state of a resource to UP Using the Peripheral Status Monitor Hardware Monitor Configuration Files Monitor Configuration Files Setting Values Description Monitor Configuration File EntriesFile Names File FormatFrequency must be a Eventnum must be aInterval must be a Event Definition Sample Global Configuration FileSeverity Action Polling Interval= Communication Device Sample Monitor-Specific Configuration File#POLLINTERVAL Startup Configuration File Keyword Values Description Startup Configuration File EntriesUDP Description Entry Default File EntriesDefault Monitoring Requests Peripheral Status Monitor PSM Configuration File Considerations for Modifying the PSM Configuration File Monitorresourcename PSM Configuration File FieldsCritical Downseverityope Example File Entries Special Procedures Fibre Channel Arbitrated Loop Hub Monitor Configuring the FC-AL Monitor Configuration File Initial Monitor ConfigurationAdding or Removing an FC-AL Hub Configuration FilesThis setting is required Setting Default Description ValuePSM Configuration File Fibre Channel Switch Monitor Configuring the FC Switch Monitor Configuration File Adding or Removing an FC SwitchChanging the FC Switch Monitoring Configuration 2PSM Configuration File Fields Special Procedures 112 Index 114 115