System Cables; Location Codes; Physical Location Codes; Location Code Format - IBM RS/6000 44P 270 Service Manual

System Cables

Power Supply Power Supply
J21
Fan
Note: P3 cable goes into designated socket J19. P4 cable goes into designated socket

Location Codes

This system unit uses physical location codes in conjunction with AIX location codes to
provide mapping of the failing field replaceable units. The location codes are produced
by the system unit's firmware and AIX.

Physical Location Codes

Physical location codes provide a mapping of logical functions in a platform (or
expansion sites for logical functions, such as connectors or ports) to their specific
locations within the physical structure of the platform.

Location Code Format

The location code is an alphanumeric string of variable length, consisting of a series of
location identifiers, separated by a dash (-), slash (/), or a pound sign (#) character. The
series is hierarchical; that is, each location identifier in the string is a physical or logical
child of the one preceding it.
P1
Fan
P2
P5
P4
P3 J10
J19 J16
J17
J7
System Board System Board
I/O Board I/O Board
J16.
Power
CD ROM CD ROM
Audio
SCSI
Power
Media Media
Device Device
SCSI
Power
Data
J7 J5
SCSI
P6
Disk Disk
Drives Drives
Backplane
J1
J2
Fan
J3
Chapter 1. Reference Information
Diskette
Power
Operator Operator
Panel Panel
Audio
9