Compaq S5 Manuale utente

DWZZH 16–Bit UltraSCSI

Hub (Rack-Mountable)

User’s Guide

EK–SMDZS-UG. B01

Compaq Computer Corporation

Houston, Texas

Second edition, November 1998

This equipment has been tested and found to comply with the limits for a Class B

digital device, pursuant to Part 15 of the FCC rules. Operation is subject to the

following two conditions: (1) This device may not cause harmful interference and (2)

This device must accept any interference that may cause undesirable operation.

This equipment generates, uses, and can radiate radio frequency energy and, if not

installed and used in accordance with the instructions, may cause harmful interference

to radio communications. However, there is no guarantee that interference will not

occur in a particular installation. If this equipment does cause harmful interference to

radio or television reception, which can be determined by turning the equipment off and

on, the user is encouraged to try to correct the interference by one or more of the

following measures:

− Reorient or relocate the receiving antenna.

− Increase the separation between the equipment and receiver.

− Connect the equipment into an outlet on a circuit different from that to which the

receiver is connected.

− Consult the dealer or an experienced radio/TV technician for help.

Japanese VCCI Statement

Compaq Computer Corporation makes no representations that the use of its products in

the manner described in this publication will not infringe on existing or future patent

rights, nor do the descriptions contained in this publication imply the granting of

licenses to make, use, or sell equipment or software in accordance with the description.

Possession, use, or copying of the software described in this publication is authorized

only pursuant to a valid written license from Compaq or an authorized sublicensor.

The following are trademarks of Compaq Computer Corporation: Compaq, DEClaser,

DIGITAL, OpenVMS, PATHWORKS, VAX DOCUMENT, and the Compaq logo.

Printed in the United States of America

EK-SMDZS-UG. B01 iii

Contents

Revision Record…………………………………………………………………v

About This Guide………………………………………………………….…..vii

1 Introducing the 16-Bit UltraSCSI Hub (Rack-Mountable)

1.1 UltraSCSI Hub Features..........................................................................................1–1

1.2 Product Descriptions...............................................................................................1–2

1.2.1 DWZZH-S5......................................................................................................1–2

1.2.2 DWZZH-09 ......................................................................................................1–3

1.3 Product Specifications............................................................................................1–4

2 Setting Up the DWZZH-09

2.1 Set Up DWZZH-09..................................................................................................2-1

2.1.1 Install 0.5m Cable in DWZZH-09......................................................................2-1

2.2 Configuration Note.................................................................................................2–4

3 Using the 16-Bit UltraSCSI Hub

3.1 Large Hub Fair Arbitration.....................................................................................3–1

3.2 Large Hub Addressing Configurations....................................................................3–2

3.2.1 Narrow Addressing Setting...............................................................................3–2

3.3 Front Panel.............................................................................................................3–4

3.3.1 Fair ARB Disable .............................................................................................3–6

3.3.2 Indicators..........................................................................................................3–6

3.4 Determining the Configuration ...............................................................................3–8

3.5 Selecting the SCSI Cables.......................................................................................3–8

4 Installing the DWZZH-09 Upgrade Kit

4.1 Install Upgrade.......................................................................................................4–2

4.1.1 Install 0.5m Cable.............................................................................................4–2

5 SWCC and UltraSCSI Hubs

5.1 Agents and Storage.................................................................................................5–1

Appendix A Removable Parts of the DWZZH–S5 and DWZZH–09......A–1

Glossary.......................................................................................................G–1

DWZZH 16-Bit UltraSCSI Hub (Rack-Mountable)

iv EK-SMDZS-UG. B01

Figures

1–1 DWZZH–S5 ...........................................................................................................1–2

1–2 DWZZH–09............................................................................................................1–3

2–1 Attach Tri–Link to Cable........................................................................................2–1

2–2 Install Tri–Link and Cable in Storage Ports of SBBs...............................................2–2

2–3 A Sample Configuration.........................................................................................2–3

2–4 Maximum Allowable Cable Distances ....................................................................2–4

3–1 DWZZH–S5 SCSI ID Assignments.........................................................................3–3

3–2 DWZZH-09 SCSI ID Assignments .........................................................................3–4

3–3 DWZZH–S5 Front Panel.........................................................................................3–5

3–4 DWZZH-09 Front Panel .........................................................................................3–6

3–5 DWZZH–S5 SCSI Narrow ID Assignments............................................................3–7

3–6 DWZZH–S5 SCSI Narrow Addressing Jumper.......................................................3–8

4–1 DWZZH–09 Upgrade Kit Contents.........................................................................4–1

4–2 Install DWZZH–A5 SBB in Shelf...........................................................................4–2

4–3 Attach Tri–Link to Cable.........................................................................................4-3

4-4 Install Tri–Link and Cable in Storage Ports of SBBs................................................4-3

5-1 Running One SWCC Agent for a Particular Storage Subsystem...............................5-2

A–1 Removable Parts of the DWZZH–S5 ..................................................................... A–2

A–2 Removable Parts of the DWZZH–09......................................................................A–2

Tables

1–1 UltraSCSI Hub Functional Specifications ...............................................................1–4

A–1 Removable Parts of the DWZZH–S5 ..................................................................... A–1

A–2 Removable Parts of the DWZZH–09......................................................................A–1

EK–SMDZS–UG. B01 v

Revision Record

The Revision Record provides a concise publication history of this guide. It lists the guide

revision levels and release dates, and summarizes the changes.

The following revision history lists all revisions of this publication and their effective

dates. The publication part number is included in the Revision Level column, with the

last entry denoting the latest revision. This publication supports the DWZZH 16-Bit

UltraSCSI Bus Hub.

Revision Level Date Summary of Changes

EK–SMDZS–UG. A01 July 1998 Original Release.

EK–SMDZS–UG.B01 October 1998 Change 1st sentence in section

3.3.3; move section 3.3.3 from

pg.3-6 to pg. 3-2.

EK–SMDZS–UG. B01 vii

About This Guide

This chapter tells you what this User’s Guide does, identifies the audience, describes the

structure and contents (chapter-by-chapter) briefly, and tells you how to get support and

services from COMPAQ.

This User’s Guide describes the purpose, function, operation, and use of the DWZZH

16-Bit UltraSCSI Rack-Mountable Hub (the DWZZH Hub or the Hub). The DWZZH

Hub allows the connection of up to five ports on one logical SCSI bus on the

DWZZH-S5 model and up to nine on the DWZZH-09 unit.

Audience

This guide is intended for end users and for COMPAQ employees responsible for

configuring, installing, and maintaining the StorageWorks subsystem and its

components.

Related Documentation

You should be familiar with the information contained in the following

documentation:

Document Title Order Number

StorageWorks Solutions Configuration Guide EK–BA350–CG

StorageWorks Solutions Shelf and SBB User’s Guide EK–BA350–UG

StorageWorks SBB Shelf I/O Modules EK–SBBIO–UG

StorageWorks UltraSCSI Configuration Guidelines EK–ULTRA–CG

StorageWorks Solutions BA356–SB 16-bit Shelf User’s Guide EK–BA356–UG

DWZZH 16–Bit UltraSCSI Hub (Rack-Mountable)

viii EK–SMDZS–UG. B01

Shared Storage Solutions Using UltraSCSI Hubs EK-SMA21-AN

Shared Storage for Windows NT Using UltraSCSI Hubs EK-SMA17-AN

Shared Storage for OpenVMS Using UltraSCSI Hubs EK-SMA19-AN

Shared Storage for DIGITAL UNIX Using UltraSCSI Hubs EK-SMA20-AN

Shared Storage for Sun Solaris Using UltraSCSI Hubs EK-SMA18-AN

Document Structure

This guide contains the following chapters:

Chapter 1. Introducing the 16-Bit UltraSCSI Hub (Rack-Mountable)

This chapter gives brief functional and physical descriptions of the DWZZH Hub

and lists significant product specifications.

Chapter 2. Setting Up the DWZZH-09

This chapter gives instructions for installing the 0.5m cable on the DWZZH-09

Hub.

Chapter 3. Using the 16-Bit UltraSCSI Hub

This chapter gives procedures for configuring a StorageWorks SCSI bus using a

DWZZH Hub.

Chapter 4. Installing the DWZZH-09 Upgrade Kit

This chapter gives instructions for installing the DWZZH-09 Upgrade Kit in a

DWZZH-S5.

Chapter 5. SWCC and UltraSCSI Hubs

This chapter is intended to provide you with some important information

regarding the use of StorageWorks Command Console (SWCC) on SCSI buses

that have an UltraSCSI Hub. While the information provided here is important,

it is essential that you have read the SWCC manual and release notes.

Appendix A. Removable Parts of the DWZZH-S5 and DWZZH-09

This Appendix identifies the parts that can be removed and replaced from the

DWZZH-S5/-09 16-Bit UltraSCSI Rack-Mountable Hubs.

Glossary

The Glossary defines terms that are used frequently with StorageWorks and SCSI

bus components.

About This Guide

EK–SMDZS–UG. B01 ix

Getting Help

If you have a problem and have exhausted the

information in this guide, you can get further

information and other help in the following locations.

Compaq Web Site

The Compaq Web Site has information on this product

as well as the latest drivers and Flash ROM images.

You can access the Compaq Web Site by logging on to

the Internet at http://www.compaq.com.

Telephone Numbers

For the name of your nearest Compaq Authorized

Reseller:

In the United States, call 1-800-345-1518

In Canada, call 1-800-263-5868

For Compaq technical support:

In the United States and Canada, call 1-800-386-2172

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