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D10 Location Codes

This system (processor subsystem and attached I/O subsystems) use physical location

codes in conjunction with AIX location codes to provide mapping of failing field

replaceable unit (FRU). The location codes are produced by the processor subsystem’s

firmware and AIX. For information about how to read a location code, see the service

guide for the processor subsystem to which your I/O subsystem is connected.

Physical Location Code Table

This section covers the AIX and Physical Location Code tables for the Model D10.

The tables in this section contain the location codes for I/O subsystems when they are

attached to the system unit. In the tables, the location code for the I/O subsystem

number is represented by

. The first time that an installed system is powered on, the

I/O subsystems are numbered. For example, if a system is first powered on with eight

I/O subsystems connected, the

value for the subsystems should be numbered from

2 through 9.

Note: If the system was powered on with I/O subsystems connected before delivery to

the customer, the I/O subsystem location codes for the connected I/O

subsystems is permanently set.

If at a later time, an I/O subsystem is removed from the system and a different I/O

subsystem is substituted, the substitute is assigned the next higher number available for

its value of

, which in the earlier example, is 10. If the original I/O subsystem is

reinstalled in the system configuration, the system uses the original

value for the I/O

subsystem.

To keep the system from renumbering the I/O drawer when an I/O backplane is

replaced, the VPD module from the old I/O backplane must be moved over to the new

I/O backplane.

The following diagram defines each part of a location code.

Ux.dd-xx-yy

||||

|||yyThis code is used for the next component (yy, yy, yy, ...)

| | xx This code is used for the next component (Px, Fx, Vx, ...)

| dd This code is the location code for the I/O drawer (2 to 63)

Ux This code normally identifies the rack in which a drawer is installed.

The x will always be zero (0) for this system.

14 Eserver pSeries 7311 Model D10 and Model D20 Service Guide

IBM eserver pSeries 7311 D10 User Manual

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