IBM 6H0, Service Manual

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Chapter 2. Diagnostics Overview
Model H80 and Models 6H0 and 6H1 systems use an integrated set of software
diagnostic procedures to facilitate isolation of failing components and system
maintenance. This book, along with the RS/6000 and
Eserver
pSeries Diagnostics
Information for Multiple Bus Systems , are the basis of the diagnostic procedures for
Model H80 and Models 6H0 and 6H1 systems. In particular, the following sections in
this book are important for the trained service representative to understand and use
when isolating a failure on the system:
v
Chapter 4, “Checkpoints,” on page 137
v Chapter 5, “Error Code to FRU Index,” on page 163
v
Chapter 6, “Loading the System Diagnostics In Service Mode,” on page 367
v
Chapter 10, “Parts Information,” on page 469
The manufacturer recommends that systems configured with 4 GB of memory or
greater have access to a 4 mm or 8 mm tape drive for submission of system dump
information if required. This function can be accomplished through locally attached or
network-attached devices, as appropriate.
Maintenance Analysis Procedures (MAPs)
Maintenance analysis procedures (MAPs) guide the trained service person through the
system. These MAPs are the entry point for all isolation and error-recovery procedures.
The MAPs are consistent with existing procedures and methods. The system uses a set
of integrated procedures, mentioned earlier, to which the MAPS are the primary entry
point.
The MAPS are as follows:
v
Entry MAP
v Quick Entry MAP
v
Problem Determination MAP
v Power MAP
v
Minimum Configuration MAP
The Entry Map is the starting point for problem determination. The purpose of this MAP
is to quickly point to the appropriate MAP or service reference information either in this
book, or in the common book set, which includes the RS/6000 and
Eserver
pSeries
Diagnostics Information for Multiple Bus Systems and the PCI Adapter Placement
Reference .
The Quick Entry MAP is a subset of the Entry MAP and helps to save time for some
types of problems.
The Problem Determination MAP provides a structured analysis method to get an error
code if one is not provided by the customer, or if diagnostics cannot be loaded.
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