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Sun Server X2-8 (formerly Sun Fire X4800 M2) Diagnostics Guide     Sun Server X2-8 (formerly Sun Fire X4800 M2) Documentation Library
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Document Information

Using This Documentation

Sun Server X2-8 Name Change

Product Downloads

Documentation and Feedback

About This Documentation

Change History

Overview of the Diagnostics Guide

Introduction to System Diagnostics

Troubleshooting Options

Diagnostic Tools

Troubleshooting the Server

How to Gather Service Visit Information

How to Troubleshoot Power Problems

How to Externally Inspect the Server

How to Internally Inspect the Server

Troubleshooting DIMM Problems

How to Isolate and Replace Faulty DIMM Pairs

How to Isolate and Correct Persistent DIMM Errors

Additional Tests

DIMM Hardware


Default BIOS Power-On Self-Test (POST) Events


Using Oracle ILOM to Monitor the Host

Viewing the Oracle ILOM Sensor Readings

Viewing Fault Status

Clearing Faults

Viewing the Oracle ILOM System Event Log

Clearing the System Event Log

Interpreting Event Log Time Stamps

Resetting the SP

Creating a Data Collector Snapshot

How to Create a Snapshot With the Oracle ILOM Web Interface

How to Create a Snapshot With the Oracle ILOM Command-Line Interface

Using SunVTS Diagnostics Software

Introduction to SunVTS Diagnostic Test Suite

SunVTS Log Files

SunVTS Documentation

How to Diagnose Server Problems With the Bootable Diagnostics CD

Performing Pc-Check Diagnostic Tests

Pc-Check Diagnostics Overview

How to Run Pc-Check Diagnostics

Pc-Check Main Menu

System Information Menu

Advanced Diagnostics

Burn-In Testing

Viewing the Pc-Check Results

U-Boot Diagnostic Start-Up Tests

U-Boot Test Options

Running the U-Boot Diagnostic Tests and Viewing the Results

U-Boot Diagnostic Test Output

Sample SP Environmental Variables Showing U-Boot Test Status


Diagnostic Tools

The following diagnostic tools are available for the Sun Server X2-8.


From the point that the host subsystem is powered on and begins executing code, BIOS code is executed. The sequence that BIOS goes through, from the first point where code is executed to the point that the operating system booting begins, is referred to as POST (power-on self-test).

POST works in conjunction with other processes to complete initialization and booting. POST focuses on thoroughly testing devices as well as providing meaningful information to users when errors occur. For more information about BIOS POST diagnostics, see BIOS POST .

Service Processor (Oracle ILOM)

You can use the Oracle Integrated Lights Out Manager (ILOM) to diagnose system problems by viewing the following:

For more information about using the Oracle ILOM to diagnose system issues, see Using Oracle ILOM to Monitor the Host.


SunVTS is the Sun Validation Test Suite, which provides a comprehensive diagnostic tool that tests and validates Sun hardware by verifying the connectivity and functionality of most hardware controllers and devices on Sun platforms. SunVTS software can be tailored with modifiable test instances and processor affinity features.

For more information about using the Sun VTS to diagnose system issues, see Using SunVTS Diagnostics Software .


The Pc-Check diagnostics can test and detect problems on all motherboard components, drives, ports, and slots. This program can be accessed and executed from the Oracle ILOM. For more information about using Pc-Check, see Performing Pc-Check Diagnostic Tests.

U-Boot Diagnostics

U-Boot diagnostics run automatically when the server is started or booted. However, to see the output, you must connect a serial terminal to the SER MGT port on the SP. U-Boot tests basic hardware functions to ensure that there is enough functionality to boot the SP. For more information, see U-Boot Diagnostic Start-Up Tests.