IBM SY33-0193-00 MAP 2320 SSA Link, IBM the SerialRAID Adapter Installation . Users Guide, Any

MAP 2320: SSA Link

This

MAP

helps

you to isolate

FRUs that

are

causing an

SSA loop problem between a

device

and

the IBM SerialRAID Adapter, or between two

devices. If you

are

not

familiar with SSA loops, read the information relating to

SSA links, strings, and loops

contained

in IBMthe SerialRAID

Adapter:

Installation

and . User's

Guide

Attention:

It

is

not

necessary

to

turn

off

the

system

unit

when servicing

the

SSA lo

unless

you

have

to

turn

it

off

for

some other

reason.

Unit power cables

and

exte

SSA

cables

that connect the devices to the system can

be

disconnected while

that

system

is

running.

001

ARE

THE

SSA

SERVICE

AIDS

AVAILABLE?

Yes

No

002

Go

to

Step

004.

003

Go

to

Step

007.

004

(From

step

002)

ARE

ANY

LINK

STATUS

(READY)

LIGHTS

FLASHING

ON

THIS

SSA

LOOP?

Yes

No

005

– Note the PAA (that is, the last three digits) of the SRN.

Go to “Finding the Physical Location of a Device” on page 38.

006

Go to “SSA Link Errors” on page 15.

007

(From step 003)

– Using the DOS Configurator, selectSSA AdapterselectList fron the main menu.

–Select the required adapter from the SSA Adapter List. (Step 007 continues)

MAPs 2320-1