Lenovo 1909 Installation And User Manual Download

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Chapter 7. Solving problems

Use these instructions to solve any problems that you might encounter when you install the blade server.

If you install the blade server in the BladeCenter unit and the blade server does not start, perform the
following actions:

• Make sure that the BladeCenter unit is correctly connected to a power source.

• Reseat the blade server in the BladeCenter unit (see “Installing a blade server in a BladeCenter chassis”

on page 70).

• If the power-on LED is flashing slowly, turn on the blade server (see “Turning on the blade server” on page

15).

• If you have just added a new optional device or component, make sure that it is correctly installed and

compatible with the blade server and its components. If the device or component is not compatible,
remove it from the blade server, reinstall the blade server in the

BladeCenter unit, and then restart the

blade server.

If the blade server does not start after you have performed the preceding actions, see the

Problem

Determination and Service Guide

for your blade server on the IBM

Documentation

CD.

Diagnostic tools overview

Use this overview to locate specific diagnostic tools to diagnose and solve hardware-related problems.

The following tools are available to help you diagnose and solve hardware-related problems:

•

POST codes, error messages, and error logs

The POST error codes indicate the detection of a problem. See the

Problem Determination and Service

Guide

for more information.

•

Troubleshooting tables

These tables list problem symptoms and actions to correct the problems. See the

Problem Determination

and Service Guide

for your blade server.

•

Light path diagnostics

Use light path diagnostics LEDs on the system board to diagnose system errors. If

the system-error LED on the system LED panel on the front or rear of the BladeCenter chassis is lit, one or
more error LEDs on the BladeCenter chassis components also might be lit. These LEDs help identify the
cause of the problem. Blade server error LEDs are described in the

Problem Determination and Service

Guide

for your blade server.

•

Dynamic System Analysis (DSA) Portable Edition diagnostic program

DSA tests the major

components of the BladeCenter unit, including the management modules, I/O modules, removable-media
drives, and the blade servers, while the operating system is running. For documentation and download
information for DSA, see http://www.ibm.com/systems/management/. For more information about
diagnostic programs and error messages, see the

Problem Determination and Service Guide

Note:

If you are unable to find the system error logs in the blade server firmware code, view the advanced

management module event log.

•

Dynamic System Analysis (DSA) Preboot diagnostic program

The DSA Preboot diagnostic programs

are stored in read-only memory. DSA Preboot collects and analyzes system information, as well as offers
a rich set of diagnostic tests to aid in diagnosing server problems. The diagnostic programs collect the
following information about the server:

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