IBM SA38-0512-03 manual Model Only, Location Codes, Format

Chapter

5. Location

Codes

(Model 150

only)

This

system

unit

uses

physical

location

codes

in

conjunction

with

AIX

location

code

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

speci

locations

within

the

physical

structure

of

the platform.

Location

Code

Format

The format

for

the

location

code

is

an

alphanumeric

string

of

variable

length,

consisting

of a series of location identifiers, separated by the standard dash

slash

(/)

character. The series

is

hierarchical;

that

is,

each location identifi

string

is

a

physical

child

of

the

one

preceding

it.

ŸThe - (dash) separator character represents a normal structural relationship

where

the

child

is

a separate

physical

package

and it plugs into (or

is

co

to)

the

parent. For

example, P1-C1 is a CPU card

(C1)

plugged

into

a

planar

(P1),

or

P1-M1

is

a

memory

card

(M1)

plugged

into

a

planar

(P1).

Ÿ

The

/

(slash)

separator

character

separates

the

base location code of a f

from

any

extended

location information. A group of

logical

devices

can

have the

same

base

location

code

because

they are

all

on

the

same

physical

package,

but

may require extended location information to describe the connectors they

support. For

example,

P2/S1

describes

the

location

of

the

serial

port

1

contro

and

its

connector

(S1),

which is

located

on

planar

P2

(its

base

location

code

but

the / indicates that further devices can

be connected

to

it

at

the

e

serial connector. The keyboard controller and its connector likewise have

location

code

P2/K1,

which

means

they

have

the

same

base

location

code

(P2)

as

serial

port

1,

but

a

different

external

connector. In

contrast,

the

locati

P2-K1 actually points

to the device connected to connector K1; that is, the

keyboard. The location code P2/Z1 indicates an integrated

SCSI

controller

which

drives

connector

Z1, while

location

codes

of

P2-Z1-...

point

to

the

actual

SCSI

bus

and

devices.

Each location identifier consists of one

alpha

prefix

character

that

identifies

type,

and a decimal integer number (typically one or two

digits) that

identifies

specific instance of this location type. Certain location types may also support

secondary

sub-locations,

which

are

indicated

by

appending

a

period

(".") charact

and

a

sub-location

instance

number.

Chapter 5. Location Codes (Model 150-1only)