IBM RS/6000 manual Adapter Normal loop

Example

3.

Broken

Loop

(Disk

Drive Module

Removed):

The following

diagram

shows

eight

disk drive

modules

connected

to connectors A1 and A2

SSA adapter,

but the loop is broken

because

disk

drive module in slot 3

removed. Four

disk drive modules are connected

to

connectors

B1

and

B2

of

same

SSA

adapter.

Although

the

missing

disk

drive

module

is

reported

as an error, all the r

drive

modules

can

still

communicate

with

the

using

system. Two disk drive mo

can communicate through connector A1 of

the

SSA

adapter. Five

disk

drive

modules can communicate through connector

A2

of

the SSA

adapter. Five

disk

drive

modules

can communicate through connectors B1

and

B2 of the

same

SSA

adapter

(normal loop).

7-52RS/6000 Enterprise Server Model H Series User's Guide