HSG80 ACS Solution Software V8.6 for Windows NT and Windows 2000 Installation and Configuration Guide

1–2 HSG80 ACS Solution Software Version 8.6 for Windows NT and Windows 2000 Installation and
Configuration Guide
Defining the Subsystems
This section describes the terms this controller and other controller. It also presents
graphics of the Model 2200 and BA370 enclosures.
NOTE: The HSG80 controller uses the BA370 or Model 2200 enclosure.
Controller Designations A and B
The terms A, B, “this controller,” and “other controller,” respectively are used to
distinguish one controller from another in a two-controller (also called dual-redundant)
subsystem. These terms are described more thoroughly in the following sections.
Controllers and cache modules are designated either A or B depending on their location in
the enclosure, as shown in Figure 1–1 for the Model 2200 enclosure and as shown in
Figure 1–2 for the BA370 enclosure.
Figure 1–1. Location of controllers and cache modules in a Model 2200 enclosure
Model 2200 Enclosure
1 ECBs
2 Fans
3 EMU
4 Power supplies
5 I/O modules
6 Controller A
7 Controller B
8 Cache module A
9 Cache module B
CXO6323C
1 1 1 1
2 2 2
3
CXO7365A
5
5
5
5
5
5
4 4
8 9
6
7