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EMS Hardware Monitors User's Guide
Manufacturing Part Number: B6191-90029
May 2005
© Copyright 1979-2005 Hewlett-Packard Development Company, L.P.
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Legal Notices The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. Printed in the US. Confidential computer software. Valid license from HP required for possession, use or copying. C
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Printing History The printing date and part number indicate the current edition. The printing date changes when a new edition is printed. (Minor corrections and updates which are incorporated at reprint do not cause the date to change.) The part number changes when extensive technical changes are incorporated. New editions of this manual will incorporate all material updated since the previous edition. May 2005 Edition 7 June 2004 Edition 6 December 2003 Edition 5 July 2003 Edition 4 April 2003
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4
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Contents 1. Introduction Hardware Monitoring Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 What is Hardware Monitoring? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 How Does Hardware Monitoring Work? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Benefits of Hardware Monitoring . . . . . . . . . . . . . .
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Contents Event Polling (in Detail). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 4. Using the Peripheral Status Monitor Peripheral Status Monitor Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 How Does the PSM Work? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 PSM Components
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Contents File Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 File Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 Considerations for Modifying the PSM Configuration File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 Example File Entries . . . . . . . . . . . . . . . . . .
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Contents 8
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Tables Table 1-1. Hardware Monitoring Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Table 2-1. Disk Arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Table 2-2. Disk Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Table 2-3. Tape Products (monitored by SCSI Tape Devices Monitor)
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Tables 10
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Figures Figure 1-1. Components Involved in Hardware Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Figure 2-1. The Steps for Installing and Configuring Hardware Monitoring. . . . . . . . . . . . . . . . . . 27 Figure 2-2. Building a Monitoring Request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 Figure 3-1. Hardware Monitoring Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
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Figures 12
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About This Manual This guide is intended for use by system administrators and others involved in managing HP-UX system hardware resources. It describes the installation and use of (EMS) Hardware Monitors—an important tool in managing the operation and health of system hardware resources. The book is organized as follows: • Chapter 1, “Introduction,” provides a foundation for understanding what the hardware monitors are and how they work. This material will help you use the hardware event monito
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• Managing MC/ServiceGuard (B3936-90024) - provides information on creating package dependencies for hardware resources • Using EMS HA Monitors (B5735-90001) - provides detailed information on using EMS to create monitoring requests. Note: This manual pertains to High Availability (HA) Monitors rather than to the EMS Hardware Monitors. Related Web sites The following Web sites provide information on hardware monitoring. • http://docs.hp.com/en/diag.html—the online library for information about E
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Introduction 1 Introduction This chapter introduces the EMS Hardware Monitors. The topics discussed in this chapter include the following: • What is hardware monitoring? • How does hardware monitoring work? • Benefits of hardware monitoring • Products supported by hardware monitoring • Tips for hardware monitoring • Hardware monitoring terms NOTE Do I Really Need to Read This Chapter? Although it is not essential that you read this material before using the hardware monitors, it will help you und
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Introduction Hardware Monitoring Overview Hardware Monitoring Overview What is Hardware Monitoring? Hardware monitoring is the process of watching a hardware resource (such as a disk) 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 all handled automatically with minimal involvement on your part. To achieve a high level of system reliability and availabilit
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Introduction Hardware Monitoring Overview How Does Hardware Monitoring Work? The following figure shows the basic components involved in hardware monitoring. Figure 1-1 Components Involved in Hardware Monitoring The typical hardware monitoring process works as follows: 1. While monitoring its hardware resources, the hardware event monitor detects some type of abnormal behavior on one of the resources. 2. The hardware event monitor creates the appropriate event message, which includes suggested co
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Introduction Hardware Monitoring Overview Benefits of Hardware Monitoring Hardware monitoring provides the following benefits: • Reduces system downtime by detecting hardware failures when they occur, allowing you to quickly identify and correct problems. • Integrates with MC/ServiceGuard and other applications responsible for maintaining system availability. These applications can now add many hardware resources to the components they monitor. • Minimizes the time required to isolate and repair f
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Introduction Hardware Monitoring Overview Products Supported by Hardware Monitors EMS Hardware Monitors are provided for a wide range of system hardware resources. The following list identifies the types of hardware supported by monitors at the time of publication. A detailed list of the specific hardware products supported by each hardware monitor is included inhttp://docs.hp.com/en/diag/ - the online library for information about EMS Hardware Monitors (look for “Supported Products” under EMS Har
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Introduction Hardware Monitoring Overview Tips for Hardware Monitoring Here are some tips for using hardware monitoring. 3 Keep hardware monitoring enabled to protect your system from undetected failures. Hardware monitoring is an important tool for maintaining high-availability on your system. In a high-availability environment, the failure of a hardware resource makes the system vulnerable to another failure. Until the failed hardware is repaired, the backup hardware resource represents a sing
