HP StorageWorks HSG80 ACS Solution Software V8.8 for HP-UX Installation and Configuration Guide (AA-RV1FA-TE, March 2005)

Planning a Subsystem
30 HSG80 ACS Solution Software V8.8 for HP-UX Installation and Configuration Guide
Defining 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.
Controllers and cache modules are designated either A or B depending on their
location in the enclosure, as shown in Figure 4 for the Model 2200 enclosure and
in Figure 5 for the BA370 enclosure.
Figure 4: 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