HP 117755-003 - ProSignia - 740 Error Prevention Manual

Error prevention guide
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Error Prevention Guide
August 2003 (First Edition)
Part Number 335894-001


Table of Contents

Summary of Contents for HP 117755-003 - ProSignia - 740

  • Page 1 Error Prevention Guide August 2003 (First Edition) Part Number 335894-001...
  • Page 2 © 2003 Hewlett-Packard Development Company, L.P. Hewlett-Packard Company shall not be liable for technical or editorial errors or omissions contained herein. The information in this document is provided “as is” without warranty of any kind and is subject to change without notice. The warranties for HP products are set forth in the express limited warranty statements accompanying such products.
  • Page 3: Table Of Contents

    Contents Abstract......................5 Audience Assumptions ................5 Preparing for Changes.................. 5 Minimizing the Impact of Changes .............. 6 Version Control ........................6 Server Design ........................6 Software Updates ....................... 6 Using a Methodology ..................7 Visually Checking the Server ............... 8 Recognizing Power Problems Caused by Acts of Nature ......
  • Page 4: Abstract

    Abstract This guide provides information to help you avoid future system problems. While many of the pointers provided are common-sense suggestions, these prevention tasks are too important to overlook. Audience Assumptions This guide is for the person who installs, administers, and troubleshoots servers. HP assumes you are qualified in the servicing of computer equipment and trained in recognizing hazards in products with hazardous energy levels.
  • Page 5: Minimizing The Impact Of Changes

    • Be sure that you allow enough time to make the changes. • Check for potential device conflicts before adding a device. • If a fixed cable tray or other cable routing system is available for the server, using this system can help prevent loose cabling and damage to cables that can result from improper disconnection.
  • Page 6: Using A Methodology

    Using a Methodology Following a set of procedures when using the server can help prevent problems, or make troubleshooting easier if problems do occur. • Use uniform naming conventions for the servers, such as names that denote server location. Uniform naming conventions help when trying to remember often overlooked details that can hold the key to resolving a crisis.
  • Page 7: Visually Checking The Server

    • Create a problem resolution notebook. When problems do occur, keep a log of the actions you took to resolve them. This could help you solve the same problem more quickly in the future. System configuration, Survey Utility, and Array Diagnostic Utility (ADU) printouts, as well as utility diskettes, can also be stored with the resolution notebook.
  • Page 8: Recognizing Power Problems Caused By Acts Of Nature

    • Be sure the server does not share a power line with high-current machines, such as laser printers, air conditioners, copiers, and coffee machines, or ungrounded power strips. • Periodically check AC grounded (earthed) outlets to see if they are in need of repair.
  • Page 9: Preventing Power Management Problems

    For more information on the specific power capabilities of the server, refer to the server documentation. To obtain the most accurate power capacity and assessment of power margin, use the power calculator provided on the ActiveAnswers website at http://activeanswers.compaq.com/aaconfigurator Error Prevention Guide...
  • Page 10: Power Supply Considerations

    Power Supply Considerations After you determine the appropriate amount of power for the server, install the power supplies needed for the level of redundancy you require. Power Redundancy Considerations If available for the server, power redundancy protects the server from power failures caused by: •...
  • Page 11: Preventing Electrostatic Damage

    • Do not expose a hard drive to products, such as monitors or speakers, that have magnetic fields. • Do not expose a drive to temperature extremes or liquids. Preventing Electrostatic Damage Many electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure determine the degree of sensitivity.
  • Page 12: Cleaning Drives

    Cleaning Drives DAT Drives Clean the tape heads of the drive regularly with a cleaning cartridge to maintain the integrity of backup data. For optimum performance and to prevent the loss of data, HP recommends that you incorporate a cleaning cycle into your backup routine. As a general guideline, you should clean the tape heads after every fifth backup cartridge.

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