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Oracle® x86 Servers Diagnostics and Troubleshooting Guide

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Updated: January 2020

Diagnostic and Troubleshooting Tools

Why are there so many different diagnostic and troubleshooting tools? There are a number of reasons for the lack of a single all-in-one diagnostic test, starting with the complexity of the server. Consider also that some diagnostics must function even when the system fails to boot. Any diagnostic capable of isolating problems when the system fails to boot must be independent of the operating system. But any diagnostic that is independent of the operating system is also unable to make use of the operating system’s considerable resources for getting at the more complex causes of faults or failures. Consider the different tasks you expect to perform with your diagnostic and troubleshooting tools:

  • Isolating faults to a specific replaceable hardware component

  • Exercising the system to disclose more subtle problems that might or might not be hardware related

  • Monitoring the system to catch problems before they become serious enough to cause unplanned downtime

You cannot optimize every diagnostic tool for all these varied tasks. Instead of one unified diagnostic tool, Oracle provides a palette of tools each of which has its own strengths and applications.

The following diagnostic and troubleshooting tools are available for your server.

Status indicators
Status indicators (LEDs) located on the chassis and on selected system components can serve as front-line indicators of a limited set of hardware failures.
Oracle ILOM Diagnostics
Oracle ILOM displays the status of system components. You can then replace a failed component, which often clears the problem.
HWdiag (Oracle ILOM Diag shell)
Oracle ILOM allows you to run HWdiag, a command-line utility that checks the status of system components. Access the hwdiag command from the Oracle ILOM Diag shell.
Snapshot Utility (Oracle ILOM)
Oracle ILOM collects information about the current state of the Oracle ILOM SP, including environmental data, logs, and information about field-replaceable units installed on the server. You also can use Snapshot to run diagnostics on the host and capture the diagnostics log files.
UEFIdiag (Oracle ILOM/UEFI shell)
Oracle ILOM allows you to run diagnostics in a UEFI environment to evaluate system components, such as the CPU, memory, disk drives, and I/O cards.
Oracle VTS Software
Oracle VTS software provides comprehensive diagnostics that verify the connectivity and functionality of most hardware controllers and devices. Oracle VTS can exercise all servers, adding stress to the main components. You can use Oracle VTS on a system running Oracle Linux or Oracle Solaris.
Oracle Solaris Diagnostics
Use Oracle Solaris diagnostics to diagnose component problems and interpret the log files.
Oracle Linux FMA
Oracle Linux Fault Management Architecture (FMA) software is an add-on service that receives data related to hardware errors detected by the host OS (CPU and memory) and automatically diagnoses the underlying problem.