45xx Modular Disk Subsystem Manual for G-Series Releases

Table Of Contents

Introduction

45xx Modular Disk Subsystem Manual for G-Series Releases—142466

1-5

Comparing the 455mod8 and 455DS Disk Modules

There are two types of 45xx disk modules: the fault tolerant 455mod8 disk module and

the decision-support 455DS disk module. Table 1-3 compares the components of the

455mod8 and 455DS disk modules.

Figure 1-2. Components of a 45xx Disk Module

Table 1-3. Components of the 455mod8 and 455DS Disk Modules

Component 455mod8 Disk Module 455DS Disk Module

BEBs 2 1

Power supplies 2 1

AC power cords 2 1

Disk drives up to 8 up to 8

Blank partition for power

supply

Blank partition for BEB 0 1

004CDT .CDD

BEB

Redundant BEB (455mod8 module only*)

Redundant Power Supply and AC Power Cord

(455mod8 module only*)

Fan

CRU

AC Power

Cord

Back

Section

Front

Section

* To maintain airflow in a 455DS module, blank partitions replace the redundant power supply and BEB.

Power

Supply

Module