Chapter 2. Diagnostic OverviewThe system uses an integrated set of software diagnostic procedures to facilitateisolation of failing components and system maintenance. This book, along with theRS/6000 EserverpSeries Diagnostic Information for Multiple Bus Systems, is thebasis of the diagnostic procedures for the system. In particular, Chapter 4,“Checkpoints”, on page 85, Chapter 5, “Error Code to FRU Index”, on page 115,Chapter 6, “Loading the System Diagnostics”, on page 181, and Chapter 10, “PartsInformation”, on page 303, in this book are important for the trained servicerepresentative to understand and use when isolating a failure on the system.The manufacturer recommends that systems configured with 4 GB of memory orgreater have access to a 4-mm or 8-mm tape drive for submission of system dumpinformation if required. This function can be accomplished through locally attached ornetwork-attached devices, as appropriate.Maintenance Analysis Procedures (MAPs)Maintenance Analysis Procedures (MAPs) guide the trained service person through thesystem. 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 setof integrated procedures, mentioned earlier, to which the MAPs are the primary entrypoint.The MAPS are as follows:v Entry MAPv Quick Entry MAPv Problem Determination MAPv Power MAPv Minimum Configuration MAPThe Entry Map is the starting point for problem determination. The purpose of this MAPis to quickly point to the appropriate MAP or service reference information either in thisbook, or in the common book set, which includes theRS/6000 EserverpSeriesDiagnostic Information for Multiple Bus Systems andPCI Adapter PlacementReference.The Quick Entry MAP is a subset of the Entry MAP and helps to save time for sometypes of problems.The Problem Determination MAP provides a structured analysis method to get an errorcode if one is not provided by the customer, or if diagnostics cannot be loaded.The Power MAP deals with isolation of components to diagnose a power problem.Power problems can be related to powering on and powering off the system, or powerfailures that occur after power is turned on.27
