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FRU Identify LEDs
This system is configured with an arrangement of LEDs that help identify various components of the
system. These include but are not limited to:
v Rack identify beacon LED (optional rack status beacon)
v Processor subsystem drawer identify LED
v I/O subsystem identify LED
v RIO port identify LED
v FRU identify LED
– Power subsystem FRUs
– Processor subsystem FRUs
– I/O subsystem FRUs
v I/O adapter identify LED
v DASD identify LED
The identify LEDs are arranged hierarchically with the FRU identify LED at the bottom of the hierarchy,
followed by the corresponding processor subsystem or I/O drawer identify LED, and the corresponding
rack identify LED to locate the failing FRU more easily. Any identify LED in the system can be flashed
when the system is in the failed state with power on by using the service processor LED Control Menu
under in the "System Information Menu" on page 490. See "System Information Menu" on page 490 for
information on how to use the LED Control Menu.
Any identify LED in the system may also be flashed by using the "Identify and Attention Indicators" task in
the AIX diagnostic programs. The procedure for using the Identify and Attention Indicators task in the AIX
diagnostics is outlined in the chapter entitled "Tasks and Service Aids" in the Eserver pSeries Diagnostic
Information for Multiple Bus Systems, order number SA38-0509.
If the service processor menus and the AIX diagnostics are not available, the FRU identify LEDs may be
flashed by one of following addtional procedures.
v If the system is configured as a full system partition, the system may be booted to the open firmware
prompt and the command FRU-LED-MENU entered. A menu will appear that will allow you to turn on
the desired FRU identify LED. See the "System Power Control Menu" on page 486 for instructions on
setting the boot mode to enable the boot to the open firmware prompt.
v If the system is logically partitioned, the HMC must be attached. There is a function at the HMC that
allows any FRU identify LED to be flashed. See the "Hardware Service Functions" section of the
"Service Focal Point" chapter of the IBM Hardware Management Console for pSeries Installation and
Operations Guide, order number SA38-0590, for instructions on activating and deactivating a FRU
identify LED.
Service Agent for the pSeries 650
Service support for the pSeries 650 can be enhanced through the use of the application program, known
as service agent for the pSeries 650. This application provides a number of advantages for the pSeries
650 customer, including automatic error reporting and analysis without customer intervention. Everything
needed to use the service agent on the pSeries 650 is shipped with the system or with the Hardware
Management Console for pSeries.
Using the Service Processor and Service Agent Features
The service processor and 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. For more information regarding the service processor, see Chapter 7, "Using the Service
Processor," on page 477.
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EserverpSeries 650 Service Guide
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