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Netra 440 Server Diagnostics and Troubleshooting Guide

817-3886-10



Contents

Figures

Tables

1. Diagnostic Tools Overview

A Spectrum of Tools

2. Diagnostics and the Boot Process

Diagnostics and the Boot Process

System Controller Boot

OpenBoot Firmware and POST

OpenBoot Diagnostics Tests

Operating System

Tools and the Boot Process: A Summary

Isolating Faults in the System

Monitoring the System

Monitoring the System Using Advanced Lights Out Manager

Exercising the System

Exercising the System Using SunVTS Software

Identifying Memory Modules

Physical Identifiers

Logical Banks

Correspondence Between Logical and Physical Banks

Identifying CPU/Memory Modules

OpenBoot Diagnostics Test Descriptions

Decoding I2C Diagnostic Test Messages

Terms in Diagnostic Output Terms

3. Isolating Failed Parts

Viewing and Setting OpenBoot Configuration Variables

Operating the Locator LED

Putting the System in Diagnostics Mode

Bypassing Firmware Diagnostics

Bypassing Diagnostics Temporarily

Maximizing Diagnostic Testing

Isolating Faults Using LEDs

Isolating Faults Using POST Diagnostics

Isolating Faults Using Interactive OpenBoot Diagnostics Tests

Viewing Diagnostic Test Results After the Fact

Choosing a Fault Isolation Tool

4. Monitoring the System

Monitoring the System Using Sun Advanced Lights Out Manager

Using Solaris System Information Commands

Using OpenBoot Information Commands

5. Exercising the System

Exercising the System Using SunVTS Software

Checking Whether SunVTS Software Is Installed

6. Troubleshooting Options

Updated Troubleshooting Information

ReleaseNotes

Web Sites

Firmware and Software Patch Management

Sun Install Check Tool

Sun Explorer Data Collector

Sun Remote Services Net Connect

Configuring the System for Troubleshooting

Hardware Watchdog Mechanism

Automatic System Recovery Settings

Remote Troubleshooting Capabilities

System Console Logging

The Core Dump Process

Testing the Core Dump Setup

7. Troubleshooting Hardware Problems

Information to Gather During Troubleshooting

Error Information From the ALOM System Controller

Error Information From the System

Recording Information About the System

System Error States

Responding to System Error States

Responding to System Hang States

Responding to Fatal Reset Errors and RED State Exceptions

Unexpected Reboots

Troubleshooting a System With the Operating System Responding

Troubleshooting a System After an Unexpected Reboot

Troubleshooting Fatal Reset Errors and RED State Exceptions

Troubleshooting a System That Does Not Boot

Troubleshooting a System That Is Hanging