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Part Number 148942-001
Compaq Computer Corporation
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Notice
The information in this publication is subject to change without notice.
COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR
EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL OR
CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING, PERFORMANCE, OR
USE OF THIS MATERIAL. THIS INFORMATION IS PROVIDED "AS IS" AND COMPAQ
COMPUTER CORPORATION DISCLAIMS ANY WARRANTIES, EXPRESS, IMPLIED OR
STATUTORY AND EXPRESSLY DISCLAIMS THE IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, GOOD TITLE AND AGAINST
INFRINGEMENT.
This publication contains information protected by copyright. No part of this publication may be
photocopied or reproduced in any form without prior written consent from Compaq Computer
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1999 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
The software described in this guide is furnished under a license agreement or nondisclosure agreement.
The software may be used or copied only in accordance with the terms of the agreement.
Compaq, Compaq Insight Manager, ProLiant, ROMPaq, SmartStart, QuickFind, PaqFax, registered
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Microsoft, Windows, and Windows NT are registered trademarks of Microsoft Corporation.
Other product names mentioned herein may be trademarks and/or registered trademarks of their
respective companies.
Compaq ProLiant ML530 Troubleshooting Guide
First Edition (December 1999)
Part Number 148942-001
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Contents
About This Guide
Text Conventions..................................................................................................... viii
Symbols in Text..........................................................................................................ix
Symbols on Equipment................................................................................................x
Rack Stability ...................................................................................................... xi
Warning Information .................................................................................................xii
Additional Resources............................................................................................... xiii
Telephone Numbers.......................................................................................... xiii
Other Information Resources............................................................................ xiii
Chapter 1
Server Startup and Operation Errors
When the Server Does Not Start.............................................................................. 1-1
Normal Power-Up Sequence ............................................................................ 1-3
Diagnosis Steps........................................................................................................ 1-4
Problems after Initial Boot....................................................................................... 1-9
Chapter 2
Status Indicators
System Status LED Indicators ................................................................................. 2-2
Hard Drive LED Indicators...................................................................................... 2-4
Hot-Plug Drive Replacement Guidelines ......................................................... 2-6
Unsafe Hot-Plug Drive Replacement Precautions............................................ 2-7
Predictive Failure Alert .................................................................................... 2-8
Network Status LED Indicators ............................................................................. 2-10
Power Supply Diagnostic LED Indicators ............................................................. 2-11
Diagnostic LED Indicators .................................................................................... 2-12
Memory Failure Conditions............................................................................ 2-14
Processor Failure Conditions.......................................................................... 2-15
Fan Failure Conditions ................................................................................... 2-16
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iv Compaq ProLiant ML530 Troubleshooting Guide
Chapter 3
System Maintenance Switch Settings
Appendix A
System Specifications
Minimum Hardware Configuration......................................................................... A-1
Operating System Support ...................................................................................... A-2
Appendix B
POST Error Messages
Appendix C
Array Diagnostic Utility
Array Diagnostic Utility (ADU) ..............................................................................C-1
Running Array Diagnostic Utility (ADU).........................................................C-2
Array Diagnostic Utility (ADU) Error Messages.....................................................C-3
Index
List of Tables
Organization ................................................................................................................ v
ProLiant ML530 Resources ..................................................................................... xiv
Table 1-1 Diagnosis Steps........................................................................................ 1-4
Table 1-2 No LED Indicators On The Front Panel Are On ..................................... 1-5
Table 1-3 Power On/Standby Status LED is Amber ................................................ 1-6
Table 1-4 Server Does Not Have Video................................................................... 1-7
Table 1-5 Memory/Processor Status LED is Amber................................................ 1-8
Table 1-6 Installation Problems ............................................................................... 1-9
Table 2-1 System Status LED Indicators ................................................................. 2-3
Table 2-2 Hot-Plug Hard Drive LED Indicator Status Combinations...................... 2-5
Table 2-3 Network Status LED Indicators............................................................. 2-10
Table 2-4 Power Supply Diagnostic LED Indicators ............................................. 2-11
Table 2-5 Diagnostic LED Indicators .................................................................... 2-13
Table 3-1 System Maintenance Switch (SW1) ........................................................ 3-2
Table A-1 Minimum Hardware Configuration ....................................................... A-1
Table A-2 Supported Operating Systems................................................................ A-2
Table B-1 POST Error Messages.............................................................................B-2
Table C-1 Array Diagnostic Utility (ADU) Error Messages....................................C-3
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About This Guide
This troubleshooting guide provides specific information to quickly
troubleshoot your ProLiant ML530. Use this guide to find details about server
startup problems, switch settings, status indicators, Power-On Self-Test
messages and more. For information about general troubleshooting techniques,
status messages, and preventative maintenance, refer to the Compaq Servers
Troubleshooting Guide, also included in your user documentation.
WARNING: There is a risk of personal injury from hazardous energy
levels. The installation of options and routine maintenance and service of
this product shall be performed by individuals who are knowledgeable
about the procedures, precautions, and hazards associated with
equipment containing hazardous energy circuits.
Organization
What will I find? Where do I find it?
You are provided with step-by-step instructions on what to try Chapter 1
and where to go for help. These instructions are provided for the
most common problems that you may encounter when your
server will not complete the initial Power-On Self-Test. This test
must complete each time you power up your server, before the
server can load the operating system and start running software
applications.
continued
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vi Compaq ProLiant ML530 Troubleshooting Guide
Organization continued
What will I find? Where do I find it?
Once your server has completed the Power-On Self-Test you may Chapter 1
still encounter errors, such as an inability to load your operating
system. You are provided with instructions on what to try and
where to go for help when you encounter errors after completion
of the Power-On Self-Test.
There are several status LEDs located on the front and back of Chapter 2
your server. These LEDs can communicate the current status of
varying aspects of your server's components and operations, thus
aiding you in diagnosing the problem. Your server also has a set
of internal diagnostic LEDs. This is a powerful tool used to
diagnose failure conditions. You are provided with an illustration
of the location of each LED on your server, as well as an
explanation of uses and possible statuses.
A switch bank on your system board contains switches that will Chapter 3
need to be changed from time to time to reflect changes made to
your server. Problems can result when they are not set correctly.
You are provided with a list of all switches, a description of what
each setting means, and an illustration of where the switches
may be found inside your server.
Compliance with the minimum hardware configuration for your Appendix A
ProLiant ML530 server is required to power up the server and run
an operating system. This is often a good place to start diagnosis
after you have changed your hardware configuration.
It is possible to encounter errors when using an operating system Appendix A
that is not compatible with your server. Check this list containing
the name and version of each operating system supported for
your server.
The Power-On Self-Test error messages are generated each time Appendix B
an error is encountered when the server is powered up. Each
message is listed numerically, with a corresponding explanation
and list of corrective measures to take.
The Array Diagnostic Utility collects information on all the array Appendix C
controllers in the system, and generates a list of detected
problems in the form of error messages. Each message is listed
alphabetically, with a corresponding explanation, and list of
corrective measures to take.
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About This Guide vii
For other places to obtain troubleshooting information, and information
specific to ProLiant ML530 servers, also see "Additional Resources," later in
this section.
WARNING: To reduce the risk of personal injury or damage to the equipment,
refer to the documentation supplied with the server and observe the appropriate
safety precautions.
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viii Compaq ProLiant ML530 Troubleshooting Guide
Text Conventions
This document uses the following conventions to distinguish elements of text:
Keys Keys appear in boldface. A plus sign (+) between
two keys indicates that they should be pressed
simultaneously.
USER INPUT User input appears in a different typeface and in
uppercase.
FILENAMES File names appear in uppercase italics.
Menu Options, These elements appear in initial capital letters.
Command Names,
Dialog Box Names
COMMANDS, These elements appear in uppercase.
DIRECTORY NAMES,
and DRIVE NAMES
Type When you are instructed to type information, type
the information without pressing the Enter key.
Enter When you are instructed to enter information, type
the information and then press the Enter key.
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About This Guide ix
Symbols in Text
These symbols may be found in the text of this guide. They have the following
meanings.
WARNING: Text set off in this manner indicates that failure to follow directions
in the warning could result in bodily harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow directions
could result in damage to equipment or loss of information.
IMPORTANT: Text set off in this manner presents clarifying information or specific
instructions.
NOTE: Text set off in this manner presents commentary, sidelights, or interesting points of
information.
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x Compaq ProLiant ML530 Troubleshooting Guide
Symbols on Equipment
These icons may be located on equipment in areas where hazardous conditions
may exist.
Any surface or area of the equipment marked with these symbols
indicates the presence of electrical shock hazards. Enclosed area
contains no operator serviceable parts.
WARNING: To reduce the risk of injury from electrical shock hazards,
do not open this enclosure.
Any RJ-45 receptacle marked with these symbols indicates a Network
Interface Connection.
WARNING: To reduce the risk of electrical shock, fire, or damage to the
equipment, do not plug telephone or telecommunications connectors
into this receptacle.
Any surface or area of the equipment marked with these symbols
indicates the presence of a hot surface or hot component. If this
surface is contacted, the potential for injury exists.
WARNING: To reduce the risk of injury from a hot component, allow
the surface to cool before touching.
Power Supplies or Systems marked with these symbols
indicate the equipment is supplied by multiple sources of
power.
WARNING: To reduce the risk of injury from electrical shock,
remove all power cords to completely disconnect power from
the system.
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About This Guide xi
WARNING: Any product or assembly marked with these symbols
indicates that the component exceeds the recommended weight for
one individual to handle safely.
XX kg
WARNING: To reduce the risk of personal injury or damage to the
XX lb
equipment, observe local occupational health and safety
requirements and guidelines for manual material handling.
Rack Stability
WARNING: To reduce the risk of personal injury or damage to the equipment, be
sure that:
I The leveling jacks are extended to the floor.
I The full weight of the rack rests on the leveling jacks.
I The stabilizing feet are attached to the rack if it is a single rack installation.
I The racks are coupled together in multiple rack installations.
I Only one component is extended at a time. A rack may become unstable if
more than one component is extended for any reason. Extend only one
component at a time.
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xii Compaq ProLiant ML530 Troubleshooting Guide
Warning Information
For a complete list of warnings associated with your server, refer to the user
documentation provided with your server.
WARNING: To reduce the risk of personal injury from hot surfaces, allow the
internal system components to cool before touching.
WARNING: This product is very heavy. To reduce the risk of
personal injury or damage to the equipment:
I Remove all pluggable power supplies and modules to reduce
42-62 kg
the weight of the product before lifting it.
93-137 lb
I Observe local occupational health and safety requirements and
guidelines for manual material handling.
I Get help to lift and stabilize the product during installation or
removal, especially when the product is not fastened to the
rails.
I Be cautious when installing the product in or removing the
product from the rack; the product will be unstable when not
fastened to the rails.
WARNING: To reduce the risk of electric shock or damage to the equipment:
I Do not disable the power cord grounding plug. The grounding plug is an
important safety feature.
I Plug the power cord into a grounded (earthed) electrical outlet that is
easily accessible at all times.
I Install the power supply before connecting the power cord to the power
supply.
I Unplug the power cord before removing the power supply from the server.
I If the system has multiple power supplies, disconnect power from the
system by unplugging all power cords from the power supplies.
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About This Guide xiii
Additional Resources
If you have a problem and have exhausted the information in this guide, you
can get further information and other help in the following locations.
Telephone Numbers
In the United States and Canada, call the Compaq Technical Support Center at
1-800-OK-COMPAQ (1-800-652-6672), where a technical support specialist
will help you diagnose the problem. For continuous quality improvement, calls
may be recorded or monitored.
For the latest worldwide telephone numbers, refer to the Compaq website:
http://www.compaq.com
and select Worldwide under Other Sites.
For the name of your nearest Compaq authorized reseller:
I In the United States, call 1-800-345-1518
I In Canada, call 1-800-263-5868
Other Information Resources
Refer to the following additional information for help.
NOTE: For additional resources outside the United States and Canada, contact your
authorized Compaq service provider.
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xiv Compaq ProLiant ML530 Troubleshooting Guide
ProLiant ML530 Resources
Resource What it is Where it is
ProLiant ML530 This book provides step-by-step instructions ProLiant ML530 Documentation CD
Setup and on the setup and installation of your server.
Installation Guide
Compaq Servers This book provides troubleshooting ProLiant ML530 Documentation CD
Troubleshooting information beyond the scope of this
Guide document, including general hardware and
software troubleshooting information for all
Compaq ProLiant servers.
ProLiant ML530 This book provides a complete list of all Compaq website:
Maintenance and replacement parts available, along with step-
http://www.compaq.com/support/servers/
Service Guide by-step instructions on installation and
replacement.
For other information resources referred to in this book, see the "resources"
entries in the index.
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1
Chapter
Server Startup and Operation Errors
This chapter provides step-by-step instructions on what to try and where to go
for help when diagnosing the most common problems you may encounter if
your server will not complete the initial Power-On Self-Test. It also outlines
the process of troubleshooting your server when problems occur after the
initial power-on sequence and during server operation.
When the Server Does Not Start
Complete these steps if the server does not start.
1. Verify that the computer and monitor are plugged into a working outlet.
2. Make sure your power source is working properly.
Check status using the Power On/Standby LED. See Figure 1-1 for
the location of the system status LEDs.
Was the Power On/Standby switch pressed firmly?
Refer to the "Power Source" section in Chapter 2 of the Compaq
Servers Troubleshooting Guide for details on what else to check.
3. Make sure the power supplies are working properly.
Check status using the power supply diagnostic LEDs. See the
"Power Supply Diagnostic LED Indicators" section in Chapter 2 for
the location of these LEDs, and an explanation of statuses.
Also refer to the "Power Source" section in Chapter 2 of the Compaq
Servers Troubleshooting Guide.
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1-2 Compaq ProLiant ML530 Troubleshooting Guide
4. If the system does not complete the Power-On Self-Test (POST) or start
loading an operating system, refer to "General Loose Connections" in
Chapter 2 of the Compaq Servers Troubleshooting Guide.
5. If the server is power cycling, verify that the system is not rebooting due
to an Automatic Server Recovery-2 (ASR-2) reboot caused by another
problem.
In the Compaq Servers Troubleshooting Guide, refer to:
Chapter 6 for a complete description of Automatic Server
Recovery-2
"System Short" in Chapter 2 for other reasons for power cycling
NOTE: ASR-2 can be enabled to restart your server, automatically loading the operating
system. Should a critical error occur, ASR-2 will log the error in the Integrated
Management Log (IML) and restart the server. The system ROM will then page the
designated administrator and execute the normal restart process.
6. Restart the server, and see "Normal Power-up Sequence," immediately
following, to verify that your system starts correctly.
7. If this does not solve the problem, continue with the following section.
1 2 3 4
Figure 1-1. System status LED indicators
Power On/Standby status Fan status
Memory/processor status Power supply status
NOTE: For detailed information on the system status LEDs, see "System
Status LED Indicators" in Chapter 2.
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Server Startup and Operation Errors 1-3
Normal Power-Up Sequence
The following events represent the power-up sequence for a system with
minimal hardware under normal operations.
1. Front panel Power On/Standby LED turns from amber (standby) to
green (on).
2. Fans start up.
3. The server will initialize in the following sequence:
a. System initialization
b. PCI auto configuration
c. Video
d. Memory test
e. Memory initialization
f. Processor initialization
g. Power supply checking
h. System event checking
i. Diskette drive
j. CD-ROM drive
k. SCSI devices
l. IDE devices
4. Operating system will boot.
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1-4 Compaq ProLiant ML530 Troubleshooting Guide
Diagnosis Steps
If your server does not power up, or powers up but does not complete the
Power-On Self-Test (POST), answer the questions in the following table to
determine appropriate actions based on the symptoms observed. Based on the
answers you give, you will be directed to the appropriate table in the section
immediately following. This table outlines possible reasons for the problem,
options available to assist in diagnosis, possible solutions available, and
references to other sources of information.
Table 1-1
Diagnosis Steps
Question Action
If NO, go to Table 1-2.
Question 1: Are any front panel system status
LEDs on?
If YES, continue to Question 2.
See Figure 1-1 for the location of each LED.
Question 2: Is the Power On/Standby status LED If AMBER, go to Table 1-3.
Green or Amber?
If GREEN, continue to Question 3.
See Figure 1-1 for the location of each LED.
Question 3: Does the server have video? If NO, refer to Table 1-4.
If YES, video is available for diagnosis. Determine next
action by observing Power-On Self-Test (POST)
progress and error messages. Refer to Appendix B in
this guide for a complete description of each POST
error message.
WARNING: To reduce the risk of electric shock or damage to the equipment:
I Do not disable the power cord grounding plug. The grounding plug is an
important safety feature.
I Plug the power cord into a grounded (earthed) electrical outlet that is
easily accessible at all times.
I Install the power supply before connecting the power cord to the power
supply.
I Unplug the power cord before removing the power supply from the server.
I If the system has multiple power supplies, disconnect power from the
system by unplugging all power cords from the power supplies.
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Server Startup and Operation Errors 1-5
CAUTION: Opening the access panel for an extended period of time when the
server is on interferes with proper airflow and will cause a temperature
violation. It is appropriate to open the server access panel briefly during server
operation to view the internal diagnostic LEDs during problem diagnosis or to
replace a redundant hot-plug power supply or hot-plug fan. If you feel that you
will need to keep the access panel open for an extended period of time, prior to
opening the unit:
1. Close all applications.
2. Bring down the operating system.
3. Press the Power On/Standby switch to place the server in standby mode.
Table 1-2
No LED Indicators On The Front Panel Are On
Possible Reasons The Next Step
No AC power. 1. Check power supply installation and look for
missing or bent pins on a power supply.
Power supply problem exists. Check power
supply diagnostic LEDs on the back of the 2. Verify that the power switch connector is properly
power supply. The power supply may not be plugged in to the backplane.
inserted correctly, have bent connector pins, or
3. Check the power switch cable for bent pins. Try
it may have failed.
reconnecting the power switch cable.
There is a broken connection between the
4. Refer to "Power Problems" in Chapter 2 of the
system and backplane via the power switch
Compaq Servers Troubleshooting Guide for
cable.
further options.
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1-6 Compaq ProLiant ML530 Troubleshooting Guide
Table 1-3
Power On/Standby Status LED is Amber
See Figure 1-1 to identify the Power On/Standby status LED. Also see Chapter 2 for a complete
description of these LEDs.
Possible Reasons The Next Step
1. Try pressing the power switch until it is fully
Power switch was not fully depressed on initial
depressed. Press firmly.
power-up.
2. Try reconnecting the power switch cable to the
Power switch cable may not be connected
backplane.
properly to the backplane.
3. Check power supply insertion and look for
Power supply problem exists. The power supply
missing or bent pins on a power supply.
may have bent connector pins, or it may have
failed.
4. Reconnect any loose cables.
There is a broken connection between the
5. Refer to "Power Problems" in Chapter 2 of the
system and backplane via the power cables.
Compaq Servers Troubleshooting Guide for
further options.
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Server Startup and Operation Errors 1-7
Table 1-4
Server Does Not Have Video
See "System Status LED Indicators" in Chapter 2.
Possible Reasons The Next Step
Video may not be connected properly. 1. Verify the video connections. Refer to "Video
Problems" in Chapter 2 of the Compaq Servers
Memory is not present, not correctly seated, or Troubleshooting Guide.
has failed.
2. Is the memory/processor status LED amber? If
Processor is not present, has failed, or is not the memory/processor status LED is amber, there
seated correctly. is a problem with the memory or the processor.
See Figure 1-1 to identify the location of the
memory/processor status LED.
Continue to Table 1-5 for further troubleshooting
steps.
-Or-
If the memory/processor status LED is not amber,
continue with step 3.
3. Are there audible indicators, such as a series of
beeps? A series of beeps will be the audible
signal indicating the presence of a Power-On
Self-Test (POST) error message. See Appendix B
in this guide for a complete description of each
beep sequence and the corresponding error
message.
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1-8 Compaq ProLiant ML530 Troubleshooting Guide
IMPORTANT: Use only the 133MHz front side bus Pentium III Xeon processors with gold
color heat sinks. Processor heat sinks are color-coded to aid in differentiation of the
correct Pentium III. If the wrong processor is installed, the server may not boot.
Table 1-5
Memory/Processor Status LED is Amber
Possible Reasons The Next Step
Processor is not present, has failed, or is not 1. Close all software applications and bring down
seated properly. the operating system.
-Or- 2. Place the server in standby mode by pressing the
Power On/Standby switch.
Memory is not present, has failed, or is not
seated properly. 3. Remove the access panel.
4. Verify that your server adheres to minimum
hardware configuration standards.
Are at least one memory module and one
processor installed?
See "Minimum Hardware Configuration" in
Appendix A, to verify that your server
configuration meets the specification minimums.
5. Look for amber diagnostic LEDs on the system
board. These LEDs will be visible if the unit is
powered on, or in standby mode, indicating a
problem with the corresponding component(s).
Are these components seated properly?
See "Diagnostic LED Indicators" in Chapter 2 for
the locations and meanings of these LEDs, and
for step-by-step instructions on using them for
problem diagnosis and resolution.
Also refer to "Properly Seating Devices" in
Chapter 2 of the Compaq Servers
Troubleshooting Guide.
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Server Startup and Operation Errors 1-9
Problems after Initial Boot
Once your server has passed the Power-On Self-Test, you may still encounter
errors, such as an inability to load your operating system. Use Table 1-6 to
troubleshoot server installation problems that occur after the initial boot. Also
see "Operating Systems" in Appendix A to verify the compatibility of your
operating system.
Table 1-6
Installation Problems
Problem Possible Cause Possible Solution
System cannot SmartStart Check the SmartStart Release notes provided on the
load SmartStart. requirement not SmartStart Online Reference Information.
performed.
IDE Cable not Check the cable between system board and CD-ROM to
connected to ensure proper connection.
CD-ROM.
Insufficient memory A rare "Insufficient Memory" message may display the
available. FIRST time SmartStart is booted on certain unconfigured
systems. Simply cold-boot the machine with the SmartStart
and Support Software CD inserted in the CD-ROM drive to
correct the problem.
Existing software is *Run the Compaq System Erase Utility. Please read the
causing conflict. caution below. Refer to the instructions in Chapter 4 of the
Compaq Servers Troubleshooting Guide.
SmartStart fails Error occurs during *Follow the error information provided. If it is necessary to
during installation. installation. reinstall, run the Compaq System Erase Utility. Refer to the
instructions in Chapter 4 Compaq Servers Troubleshooting
Guide.
CMOS not cleared. *Run the Compaq System Erase Utility. Read the caution
below. Refer to the instructions in Chapter 4 of the Compaq
Servers Troubleshooting Guide.
*CAUTION: The Compaq System Erase Utility will cause loss of all configuration information, as well as
loss of existing data on all connected hard drives. Please read "Running the Compaq System Erase Utility"
and the associated warning in Chapter 4 of the Compaq Servers Troubleshooting Guide, prior to performing
this operation.
continued
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1-10 Compaq ProLiant ML530 Troubleshooting Guide
Table 1-6
Installation Problems continued
Problem Possible Cause Possible Solution
Server cannot Required operating Follow these steps:
load operating system step
1. Note at which phase the operating system failed.
system. missed.
2. Remove any loaded operating system.
3. Refer to your operating system documentation.
4. Install again.
Installation problem Refer to your operating system documentation and to the
occurred. SmartStart Release Notes.
Use the System Configuration Utility to troubleshoot where
the installation failed.
Problem Refer to the documentation provided with the hardware.
encountered with
Run the System Configuration Utility to determine if drives
the hardware you
are properly attached to the primary boot controller. Refer
have added to the
to the Compaq ProLiant ML530 Setup and Installation Guide
system.
for instructions on correct SCSI bus configuration for your
unit.
Refer to Chapter 1 and Chapter 3 of the Compaq Servers Troubleshooting
Guide.
I Chapter 1 provides you with the information you will need to collect
when diagnosing software problems and to provide when contacting
support.
I Chapter 3 tells provides you with instructions on how to upgrade your
operating system and its drivers. If also tells you what recovery options
are available, and offers advice on minimizing downtime.
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2
Chapter
Status Indicators
There are a variety of status LEDs located on the front and back of your
server. These LEDs can communicate the current status of varying aspects of
your server's components and operations, thus aiding you in diagnosing your
problem. The following ProLiant ML530 LEDs are explained in this chapter.
I System status LEDs (on the front panel of the server)
Power On/Standby status
Memory/processor status
Fan status
Power supply status
I Hard drive LEDs (located on the front of the physical drive)
Activity status
Online status
Fault status
I Network controller status LEDs (on the back of the server)
Network link status
Network activity status
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2-2 Compaq ProLiant ML530 Troubleshooting Guide
I Power supply diagnostic LEDs (on the back of the server)
AC power status
Error status
I Diagnostic LEDs (on the system board)
8 memory diagnostic LEDs, 1 for each memory module slot
2 processor diagnostic LEDs, 1 for each processor slot
3 drive fan diagnostic LEDs, 1 for each drive fan
4 system fan diagnostic LEDs, 1 for each system fan
System Status LED Indicators
The system status LEDs are located on the front panel of each server. These
LEDs show:
I Power On/Standby status
I Memory/processor status
I Fan status
I Power supply status
1 2 3 4
Figure 2-1. System status LED indicators
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Status Indicators 2-3
Table 2-1
System Status LED Indicators
Indicator Status Means
Green (On) System is fully on with adequate AC power
Power On/Standby status LED
provided.
Amber (Standby) System is in standby mode. No +5V, +12V or
+3.3V power is available. A portion of the
system logic may still be active, and auxiliary
power is provided to the system.
Flashing Amber Temporary system shutdown due to a thermal
event.
Off No AC power is provided to the system.
Flashing Amber This indicates a memory or processor failure.
Memory/processor status LED
To further aid in diagnosis, one or more internal
memory or processor diagnostic LEDs on the
system board will also be illuminated,
indicating which component (memory module
or processor) is experiencing the failure. See
the "Diagnostic LED Indicators" section in this
chapter for more information.
Green Memory and processor(s) OK.
Flashing Amber This indicates a fan failure. The failed fan must
Fan status LED
be replaced. To further aid in diagnosis, one or
more internal drive or system fan diagnostic
LEDs on the system board will also be
illuminated (amber), indicating which fan is
experiencing the failure. See the "Diagnostic
LED Indicators" section in this chapter for more
information.
Green Fans OK.
Flashing Amber This indicates a power supply failure. The
Power Supply status LED
redundant power supply must be replaced. See
the "Power Supply Diagnostic LED Indicators"
section for more information.
Green Power supply(s) OK.
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2-4 Compaq ProLiant ML530 Troubleshooting Guide
Hard Drive LED Indicators
The hard drive LEDs, located on each physical drive, are visible on the front
of the server or external storage unit. They provide activity, online and fault
status for each corresponding drive when configured as a part of an array, and
attached to a powered-on controller. Their behavior may vary, depending on
the status of other drives in the array.
This section provides the following information about hard drive LEDs:
I An illustration detailing the location of each LED
I A matrix of the possible LED configurations and what each combination
means
I Details about hot-plug drive rapid error recovery and guidelines for
utilizing Compaq Insight Manager's predictive failure alert
I Guidelines for hot-plug drive replacement
For additional information on troubleshooting hard drive problems, refer to
"Hard Drive Problems" and "SCSI Device Problems" in Chapter 2 of the
Compaq Servers Troubleshooting Guide.
Use the following illustration in conjunction with Table 2-2 to analyze current
statuses for hot-plug hard drives which are attached to a Compaq Smart Array
controller.
3
2
1
Figure 2-2. Hot-plug hard drive LED indicators
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Status Indicators 2-5
IMPORTANT: It is recommended that you familiarize yourself with the guidelines
following Table 2-2 prior to performing a drive replacement.
Table 2-2
Hot-Plug Hard Drive LED Indicator Status Combinations
Means
Activity Online Fault
On Off Off Do not remove the drive. Removing a drive during
this process will cause data loss.
The drive is being accessed and is not configured as
part of an array.
On Flashing Off Do not remove the drive. Removing a drive during
this process will cause data loss.
The drive is rebuilding or undergoing capacity
expansion.
Flashing Flashing Flashing Do not remove the drive. Removing a drive during
this process will cause data loss.
The drive is part of an array being selected by the
Array Configuration Utility.
-Or-
The Options ROMPaq is upgrading the drive.
Off Off Off OK to replace the drive online if a predictive failure
alert is received (see the following section for details)
and the drive is attached to an array controller.
The drive is not configured as part of an array.
-Or-
If this drive is part of an array, then a powered-on
controller is not accessing the drive.
-Or-
The drive is configured as an online spare.
continued
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2-6 Compaq ProLiant ML530 Troubleshooting Guide
Table 2-2
Hot-Plug Hard Drive LED Indicator Status Combinations continued
Means
Activity Online Fault
Off Off On OK to replace the drive online.
The drive has failed, and has been placed off-line.
Off On Off OK to replace the drive online if a predictive failure
alert is received (see the following section for details),
provided that the array is configured for fault tolerance
and all other drives in the array are online.
The drive is online and configured as part of an array.
On or On Off OK to replace the drive online if a predictive failure
Flashing alert is received (see the following section for details),
provided that the array is configured for fault tolerance
and all other drives in the array are online.
The drive is online and being accessed.
Hot-Plug Drive Replacement Guidelines
You should be able to hot-plug a drive during normal activity. Be aware;
however, that hot plugging a disk drive will effect system performance and
fault tolerance.
NOTE: Depending upon your configuration, both a drive failure and the subsequent
rebuild process will cause storage subsystem performance degradation. For example, the
replacement of a single drive on an array with 50 logical drives will have less of an impact
than if the array has 3 logical drives.
When a disk drive is hot-plugged, although the system is functionally
operational, the disk subsystem may no longer be fault tolerant. Fault tolerance
will be lost until the removed drive is subsequently replaced and the rebuild
operation is completed (this will take several hours even if the system is not
busy while the rebuild is in progress). If another drive in the array should incur
an error during the period when fault tolerance is unavailable, it is possible to
cause a fatal system error due to a data error. If another drive fails during this
period, the entire contents of the array will be lost.
IMPORTANT: It is therefore recommended that disk drive replacement be performed
during low activity periods whenever possible. In addition, a current valid backup should
be available of the logical drives in the array of the drive being replaced, even if drive
replacement is being made during server downtime.
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Status Indicators 2-7
Unsafe Hot-Plug Drive Replacement Precautions
Be aware of the following Compaq guidelines cautioning unsafe hot-plug
replacement.
I Do not remove a degraded drive if any other member of the array is
off-line (the online LED is off). No other drive in the array can be
hot-plugged without data loss. The possible exception to this would be
the utilization of RAID 0+1 as a fault tolerant form. In this case, drives
are essentially mirrored in pairs; more that one drive can fail and be
replaced as long as the drive(s) they are mirrored to are online.
Refer to your Smart Array Controller's user guide for information on
fault tolerance options.
I Do not remove a degraded drive if any member of an array is missing
(previously removed and not yet replaced).
I Do not remove a degraded drive if any member of an array is being
rebuilt unless the drive being rebuilt has been configured as an online
spare. The drive's online LED will be flashing, indicating that a
replaced drive is being rebuilt from data stored on the other drives.
NOTE: An online spare will not activate and start rebuilding after a predictive failure alert,
as the degraded drive is still online. The online spare only activates after a drive in the
array has failed.
I Do not replace multiple degraded drives at the same time (for example,
when the system is off), since the fault-tolerance may be compromised.
When a drive is replaced, the controller uses data from the other drives
in the array to reconstruct data on the replacement drive. If more than
one drive is removed, a complete data set is not available to reconstruct
data on the replacement drive(s) and permanent data loss could occur.
CAUTION: Do not turn off an attached disk drive enclosure when the server
containing the Smart Array controller is powered on. Also, do not turn on the
server before turning on the disk enclosure. If these ordering rules are not
followed, the Smart Array Controller may mark the drives in this enclosure as
"failed," which could result in permanent data loss.
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2-8 Compaq ProLiant ML530 Troubleshooting Guide
Predictive Failure Alert
The predictive failure alert is a powerful problem-prevention tool that warns
you when the system has determined that a drive failure is imminent. This alert
allows you to proactively schedule downtime for maintenance and not
interrupt critical business operations that rely on your servers. In addition, with
hot-pluggable drives attached to Compaq Smart Array controllers, you can
remove and replace one or several drives within a server while the system is
online, which minimizes the interruption of the network, server downtime and
data loss. Refer to your Compaq Insight Manager and Compaq Management
Agents documentation (found on the Compaq Management CD) for
instructions on implementing this function.
CAUTION: Not following these guidelines could result in data loss.
CAUTION: It is recommended that some level of fault tolerance be utilized in
your RAID configuration. Refer to your Smart Array controller user's guide for
information on fault tolerance options.
IMPORTANT: You must use Compaq Insight Manager and a Compaq Smart Array
controller to manage the drive array on your server if you wish to implement Predictive
Failure Alert.
Predictive Failure Replacement Guidelines
To minimize server downtime and data loss, use these guidelines when
Compaq Insight Manager implements a predictive failure alert. The alert
indicates that a drive is degraded and should be replaced:
I Make sure all physical drives in the affected array should be present and
have the online LEDs illuminated before removing the degraded
hot-plug drive. If any online LEDs are flashing (indicating a rebuild) or
not illuminated, the degraded drive should not be removed.
For step-by-step instructions on hot-plugging your hard drive, refer to
the ProLiant ML530 Setup and Installation Guide.
I If you are upgrading to larger drives in the array, follow the previously
stated rules and ensure that each drive has completed its rebuild before
adding the next new drive to the array.
I You must follow the Compaq cabling guidelines when configuring your
array to implement the best possible cabling solution for your server.
Refer to the ProLiant ML530 Setup and Installation Guide for
step-by-step instructions.
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Status Indicators 2-9
I Check for cabling configurations that are not supported. Signal integrity
errors may be injected into the SCSI bus when an active drive is
hot-plugged.
I Make sure fault tolerance is not currently being used to recover from
errors to other drives in the array, such as media errors or signal
integrity errors Loss of fault tolerance following a drive replacement
may result in problems.
CAUTION: In extreme cases, when the number of errors is greater than the
firmware error recovery is able to sustain, hot-plugging an online drive may
cause some unrecoverable errors to be reported to the operating system or may
cause a complete failure of the array. Refer to your operating system
documentation for more information on implications, as well as possible
recovery options.
IMPORTANT: Before replacing a degraded drive, use Compaq Insight Manager to
examine the error counters recorded for each physical drive in the array to verify that
such errors are not presently occurring. Refer to the Compaq Insight Manager
documentation on the Compaq Management CD.
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2-10 Compaq ProLiant ML530 Troubleshooting Guide
Network Status LED Indicators
The network controller status LEDs are located on the back of the server. They
provide information on:
I Whether or not the server is linked to the network
I Whether or not there is current network activity
1
876 5 4 3 2 1
2
Figure 2-3. Network status LED indicators
Table 2-3
Network Status LED Indicators
Indicator Status Means
Off No network link
Link status
On Linked to network
Off No network activity
Activity status
On or Flashing Network activity
Refer to "Network Controller Problems" in Chapter 2 of the Compaq Servers
Troubleshooting Guide for more information on troubleshooting network
controller problems.
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Status Indicators 2-11
Power Supply Diagnostic LED Indicators
The power supply diagnostic LEDs are located on the back of the server. They
provide information on status of AC power to the server, as well as current
error status.
1
2
Figure 2-4. Power supply diagnostic LED indicators
Table 2-4
Power Supply Diagnostic LED Indicators
Indicator Status Means
On System is on and AC power is present.
AC Power Status (green)
Flashing System is in standby mode.
Off No AC power present.
Off Normal power supply operation, no errors.
Error Status (amber)
On For single power supply configurations, this
indicates a power supply failure.
With multiple power supply configurations, this
indicates that there is no AC power present.
Flashing Current limit exceeded.
Refer to "Power Problems" in Chapter 2 of the Compaq Servers
Troubleshooting Guide for more information on troubleshooting power and
power supply problems.
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2-12 Compaq ProLiant ML530 Troubleshooting Guide
Diagnostic LED Indicators
When a system fault occurs (such as a memory, processor or fan fault), the
memory/processor or fan status LED on the front panel will begin flashing
amber. In addition, one or more internal diagnostic LEDs will show a fault
status. Each of these diagnostic LEDs corresponds to a specific component, (a
memory module, a processor, or a fan) adding a powerful tool in diagnosing a
server problem at the component level. For an understanding of the diagnostic
LEDs, refer to the table of status meanings below. They include:
I 8 memory diagnostic LEDs, 1 for each memory module slot
I 2 processor diagnostic LEDs, 1 for each processor slot
I 3 drive fan diagnostic LEDs, 1 for each drive fan
I 4 system fan diagnostic LEDs, 1 for each system fan
Directly following Table 2-5 is an explanation of each type of system fault,
with steps to take when one occurs. Also see the "System Status LED
Indicators" section, earlier in this chapter.
1 2
3
4
Figure 2-5. Diagnostic LED indicators
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Status Indicators 2-13
Table 2-5
Diagnostic LED Indicators
Indicators Status Means
Off All installed memory modules OK.
Memory diagnostic LEDs
Amber Indicated memory module has failed or
(8 LEDs total)
is not seated properly. (One or more
memory modules may have
corresponding LEDs lit.)
All 8 Amber No valid memory is present.
Off All installed processors OK.
Processor diagnostic LEDs
Amber Indicated processor has failed or is not
(2 LEDs total)
seated properly.
Green Indicated fan is operational.
Drive Fan diagnostic LEDs
Amber Indicated fan has failed or is not
(3 LEDs total)
seated properly. Check cable
connections.
Off There is no power being accessed.
Green Indicated fan is operational.
System Fan diagnostic LEDs
Amber Indicated fan has failed or is not
(4 LEDs total)
seated properly. Check cable
connections.
Off There is no power being accessed.
CAUTION: Opening the access panel for an extended period of time when the
server is on interferes with proper airflow and will cause a temperature
violation. It is appropriate to open the server access panel briefly during server
operation to view the internal diagnostic LEDs during problem diagnosis or to
replace a redundant hot-plug power supply or hot-plug fan. If you feel that you
will need to keep the access panel open for an extended period of time, prior to
opening the unit:
1. Close all applications.
2. Bring down the operating system.
3. Press the Power On/Standby switch to place the server in standby mode.
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