EMS Hardware Monitors: Overview

ManualsBrandsHP ManualsSoftwareHP-UX Online Diagnostics Software

This overview introduces the EMS Hardware Event Monitors. In addition to this summary page, see the

following overview topics:

Benefits

Installing

How EMS Hardware Monitors Work

Glossary

For more information, see the EMS hardware monitor documents at http://www.hp.com/go/hpux-

diagnostics-docs

NEW! (May 01) : A two-page brochure on EMS monitors titled Protect Against Hardware Failures on HP

9000 Computers.

Protects Against System Hardware Failures

EMS Hardware Monitors provide a high level of protection against hardware failures that could interrupt

system operation or cause data loss.

Hardware Monitoring Defined

Hardware monitoring is the process of watching hardware resources, such as disks, for the occurrence of

any unusual activity, called an event. When an event occurs, it is reported using a variety of notification

methods (such as email). Event detection and notification are handled automatically with minimal

involvement on the user's part.

Summary of content (6 pages)

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EMS Hardware Monitors: Overview This overview introduces the EMS Hardware Event Monitors. In addition to this summary page, see the following overview topics: Benefits Installing How EMS Hardware Monitors Work Glossary For more information, see the EMS hardware monitor documents at http://www.hp.com/go/hpuxdiagnostics-docs NEW! (May 01) : A two-page brochure on EMS monitors titled Protect Against Hardware Failures on HP 9000 Computers.
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Integration With Other Applications Hardware monitoring can be integrated with other applications responsible for maintaining system availability, such as MC/ServiceGuard. It is vital that these applications be alerted to hardware problems immediately so they can take the necessary action to avoid system interruption.
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system are automatically included in the monitoring structure. Provides automatic recovery from memory and CPU errors on some systems (memory page deallocation and dynamic processor resilience). EMS Hardware Monitors: Installing You can get hardware monitoring installed and working in minutes. System requirements: HP 9000 Series 700 or 800 Computer HP-UX 10.20 or 11.00 (Hardware event monitoring is not currently available on the special high security systems, HP-UX 10.26 (TOS) and HP-UX 11.04 (VVOS).
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If you find that the default monitoring should be customized, you can always return later and add or modify monitoring requests as needed. EMS Hardware Monitors: How It Works Hardware monitors are implemented as special processes (daemons) running on the computer system. The typical hardware monitoring process works as follows: 1. A hardware event monitor detects abnormal behavior in one of the hardware resources (devices) it is monitoring. 2.
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EMS Hardware Monitors: Glossary The following terms are important for understanding hardware event monitors. asynchronous event detection The ability to detect an event at the time it occurs. When an event occurs the monitor is immediately aware of it. This method provides quicker notification response than polling. default monitoring requests The default monitoring configuration created when the EMS Hardware Monitors are installed.
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GUI. Peripheral Status Monitor (PSM) Included with the hardware event monitors, the PSM is a monitor daemon that acts as a hardware status monitor by converting events to changes in hardware resource status. This provides compatibility with MC/ServiceGuard, which uses changes in status to manage cluster resources. The PSM is also used to create hardware status monitoring requests through the EMS GUI. polling The process of connecting to a hardware resource at regular intervals to determine its status.