Fru Isolation; Electronic Service Agent For The Eserver Pseries And Rs/6000; Using The Service Processor And Electronic Service Agent Features; Service Processor - IBM RS/6000 Enterprise Server M80 Service Manual

FRU Isolation

For a list of error codes and recommended actions for each code, see Chapter 5, "Error Code to FRU
Index," on page 159. These actions can refer to Chapter 11, "Parts Information," on page 467, Chapter 3,
"Maintenance Analysis Procedures (MAPs)," on page 71, or provide informational message and directions.
If a replacement part is indicated, direct reference is made to the part name. The respective AIX and
physical location codes are listed for each occurrence as required. For a list of locations codes, see "AIX
and Physical Location Code Reference Tables" on page 31.
To look up part numbers and view component diagrams, see Chapter 11, "Parts Information," on page 467.
The beginning of the chapter provides a parts index with the predominant field replaceable units (FRUs)
listed by name. The remainder of the chapter provides illustrations of the various assemblies and
components which make up these servers.

Electronic Service Agent for the Eserver pSeries and RS/6000

Service support for your system can be enhanced through the use of the application program, Electronic
Service Agent. This application provides a number of advantages for the systems customer, including
automatic error reporting and analysis without customer intervention. The Electronic Service Agent kit
includes the Electronic Service Agent for Eserver pSeries and RS/6000 CD, order number LCD4–1060,
which contains documentation to help you set up and use Electronic Service Agent.

Using the Service Processor and Electronic Service Agent Features

The service processor and Electronic Service Agent features protect users against unnecessary system
downtime by advising support personnel (both internal and external) of any unexpected changes in the
system environment. In combination, the two features provide a flexible solution to automated system
maintenance.

Service Processor

The service processor runs on its own power boundary and continually monitors hardware attributes, the
AIX operating system, and the environmental conditions within the system. Any system failure which
prevents the system from returning to an operational state (a fully functional AIX operating system) is
reported by the service processor. The service processor is controlled by firmware and does not require
the AIX operating system to be operational to perform its tasks. If any system failures are detected, the
service processor has the ability to take predetermined corrective actions. The methods of corrective
actions are:
v Surveillance
v Call home
v AIX operating system monitoring
Surveillance is a function in which the service processor monitors the system through heartbeat
communication with the system firmware. The heartbeat is a periodic signal that the firmware can monitor.
During system startup, the firmware surveillance monitor is automatically enabled to check for heartbeats
from the firmware. If a heartbeat is not detected within a default period, the service processor cycles the
system power and attempts to restart until the system either restarts successfully, or a predetermined retry
threshold is reached. In the event the service processor is unsuccessful in bringing the system online (or
in the event that the user asked to be alerted to any service processor-assisted restarts), the system can
call home to report the error.
The call home function can be initialized to call either a service center telephone number, a customer
administration center, or a digital pager telephone number. The service processor can be configured to
stop at the first successful call to any of the numbers listed, or can be configured to call every number
provided. If connected to the service center, the service processor transmits the relevant system
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Chapter 2. Diagnostics Overview