IBM DU3 2104 Manuel

Expandable Storage Plus

2104 Model s DU3 and TU3

Hardware Technical Information

SA33-3309-00

Expandable Storage Plus

2104 Model s DU3 and TU3

Hardware Technical Information

SA33-3309-00

First Edition (October 2000)

The following paragraph does not apply to any country where such provisions are inconsistent with local law:

THIS PUBLICATION IS PRINTED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED,

INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A

PARTICULAR PURPOSE. Some states do not allow disclaimer of express or implied warranties in certain transactions;

therefore, this statement may not apply to you.

This publication could contain technical inaccuracies or typographical errors. Changes are periodically made to the

information herein; these changes will be incorporated in new editions of the publication.

It is possible that this publication may contain reference to, or information about, products (machines and programs),

programming, or services that are not announced in your country. Such references or information must not be

construed to mean that such products, programming, or services will be offered in your country. Any reference to a

licensed program in this publication is not intended to state or imply that you can use only the licensed program

indicated. You can use any functionally equivalent program instead.

Note to U.S. Government Users – Documentation related to restricted rights – Use, duplication, or disclosure is subject

to restrictions set forth in the GSA ADP Schedule Contract.

Contents

About This Book .......................v

Related Publications ......................v

Trademarks ........................v

Chapter 1. Introduction .....................1

2104 Model DU3 .......................2

2104 Model TU3........................4

SCSI Disk Drive Modules.....................6

SCSI Interface Cards ......................7

Fan-and-Power-Supply Assemblies .................8

Switch Card .........................9

SCSI Bus Bridge Card .....................10

SCSI Bus Configurations ...................10

Chapter 2. Product Characteristics ................13

Dimensions .........................13

Weight ..........................13

Service Clearances ......................13

Environment ........................14

Temperature and Humidity ...................14

Altitude .........................14

Heat Output, Airflow, and Cooling .................15

Electrical Power .......................16

Input-voltage Requirements ..................16

Power Input ........................16

Power Factor .......................17

Output Protection ......................17

Early Power-Off Warning (EPOW) ................17

Power Control ........................18

Power Sequencing .....................18

Auto Restart .......................18

Safety Approvals .......................19

Electromagnetic Compatibility ...................20

Federal Communications Commission (FCC) Statement .........20

Japanese Voluntary Control Council for Interference (VCCI) Statement ....20

Korean Government Ministry of Communication (MOC) Statement......20

New Zealand Compliance Statement ...............20

International Electrotechnical Commission (IEC) Statement ........20

Avis de conformitéàla réglementation d’Industrie Canada ........20

Industry Canada Compliance Statement ..............21

United Kingdom Telecommunications Requirements ..........21

European Union (EU) Statement .................21

Radio Protection for Germany ..................21

Taiwan Class A Compliance Statement ...............22

Chapter 3. Physical Connections .................23

SCSI Adapters and Cables ....................25

iii

Mainline-Power Connectors ...................26

iv 2104 Models DU3 and TU3 Hardware Technical Information

About This Book

This book is intended for system designers, programmers, engineers, and other

professionals who need to understand the 2104 Models DU3 and TU3.

Chapter 1 contains an introduction and general information about the components of

the 2104 Models DU3 and TU3.

Chapter 2 contains a summary of the physical characteristics of the 2104 Models DU3

and TU3.

Chapter 3 contains information about the external connectors of the 2104 Models DU3

and TU3.

Related Publications

ANSI

specification SCSI/2 X3T9.2/86-109 revision 10H

ANSI specification X3.131-199X

Site and Hardware Planning Information, SA38-0508

Adapters, Devices, and Cables Information for Multiple Bus Systems, SA38-0516

Expandable Storage Plus : 2104 Models DU3 and TU3 Operator’s Guide,

SA33-3310

Expandable Storage Plus : 2104 Model DU3 Installation Guide, GA33-3311

Expandable Storage Plus : 2104 Model TU3 Installation Guide, GA33-3312

Expandable Storage Plus : 2104 Models DU3 and TU3 Service Guide, GY33-0198

Trademarks The following items are trademarks of International Business Machines Corporation in

the United States, or other countries, or both:

vAIX

vIBM

vRS/6000

1. American National Standards Institute.

vi 2104 Models DU3 and TU3 Hardware Technical Information

Chapter 1. Introduction

This section describes the 2104 Models DU3 and TU3 and their components.

Figure 1. 2104 Model TU3 (on the Left) and 2104 Model DU3 (on the Right)

2104 Model DU3

The 2104 Model DU3 is a rack-mounted SCSI disk enclosure that can be attached to

any RS/6000 or IBM

™

server

™

pSeries computer that provides support for any of

the Small Computer System Interface (SCSI) adapters listed in “SCSI Adapters and

Cables”on page 25.

A fully configured 2104 Model DU3 looks like this:

At the front of a 2104 Model DU3 there are 14 device slots 1. In a fully configured

2104 Model DU3, each slot contains a SCSI disk drive module. If a 2104 Model DU3 is

not fully configured, each slot that does not contain a SCSI disk drive module must

contain a dummy module.

Note: At least one SCSI disk drive module must be present in each 2104 Model DU3.

Each disk drive module connects to a backplane that is mounted vertically about

halfway between the front and back of the 2104 Model DU3.

The 14 device slots are divided into two groups of seven slots. Between the two groups

of slots there is a SCSI bus bridge card 2. The SCSI bus bridge card assigns the disk

drive modules to a SCSI bus, in accordance with the setting of the SCSI bus split

switch on the switch card.

Figure 2. 2104 Model DU3 from the Front (Top) and Back (Bottom)

22104 Models DU3 and TU3 Hardware Technical Information

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