IBM eserver 630 6C4, Service Manual

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The Minimum Configuration MAP is used to locate defective components not found by
normal diagnostics or error-isolation methods. This MAP provides a systematic method
of isolation to the failing item.
Power and Attention LEDs
The Power and Attention LEDs provide a means to identify failing components in your
system. When a failing component is detected in your system, the system’s Attention
LED is turned on.
Component LEDs
To further help you identify the failing component, all system components have
individual LEDs that indicate a failure when lit. The LEDs are either on the component
itself or on the carrier of the component (memory card, fan, memory module, CPU).
The LEDs are either green or amber in color. A lit green LED indicates that the system
or component is receiving power. A lit amber LED indicates the system or component
has a failure.
Resetting the LEDs
To reset the LEDs, do the following:
1. Replace the failing component with the new component.
2. Log in as root user.
3. At the command line, type
diag
.
4. Select Task Selection.
5. Select Log Repair Action.
6. Select the device that was repaired. (If the device is not listed, select sysplanar0.)
Checkpoints
The system uses various types of checkpoints, error codes, and SRNs, which are
referred to throughout this book (primarily in Chapter 4, “Checkpoints” on page 123,
Chapter 5, “Error Code to FRU Index” on page 153, Chapter 6, “Loading and Using
Online and Standalone Diagnostics” on page 271, and Chapter 10, “Parts Information”
on page 457). These codes can appear in the service processor boot progress log, the
AIX error log, and the operator panel display. Understanding the definition and
relationships of these codes is important to the service personnel who are installing or
maintaining the system.
Codes that can appear in the service processor boot progress log, the AIX error log, the
virtual terminal, and the operator panel display are as follows:
Checkpoints Checkpoints display in the operator panel from the time ac power is
connected to the system until the AIX login prompt is displayed after a
successful operating system boot. These checkpoints have the
following forms:
8xxx 8xxx checkpoints are displayed from the time ac power is
52 Eserver
pSeries 630 Models 6C4 and 6E4 Service Guide