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March 1991

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Document:	VAX 4000 Model 300 Operation
Order Number:	EK-336AC-OP
Revision:	3
Pages:	138
Original Filename:

OCR Text

VAX 4000 Model 300
Operation
Order Number EK–336AC–OP–003

Digital Equipment Corporation
Maynard, Massachusetts

First Printing, March 1990
Revised, July 1990
Revised, June 1991
The information in this document is subject to change without notice and should not be
construed as a commitment by Digital Equipment Corporation.
Digital Equipment Corporation assumes no responsibility for any errors that may appear in
this document.
The software, if any, described in this document is furnished under a license and may be used
or copied only in accordance with the terms of such license. No responsibility is assumed
for the use or reliability of software or equipment that is not supplied by Digital Equipment
Corporation or its affiliated companies.
Restricted Rights: Use, duplication or disclosure by the U.S. Government is subject to
restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer
Software clause at DFARS 252.227–7013.
© Digital Equipment Corporation, 1991. All rights reserved.
Printed in U.S.A.
The Reader’s Comments form at the end of this document requests your critical evaluation to
assist in preparing future documentation.
The following are trademarks of Digital Equipment Corporation: CompacTape, CX, DDCMP,
DEC, DECconnect, DECdirect, DECnet, DECscan, DECserver, DECUS, DECwindows,
DELNI, DEMPR, DESQA, DESTA, DSRVB, DSSI, IVAX, KDA, KLESI, KRQ50, MicroVAX,
MSCP, Q-bus, Q22-bus, RA, RQDX, RV20, SA, SDI, ThinWire, TK, TMSCP, TQK, TS05, TU,
VAX, VAX 4000, VAXcluster, VAX DOCUMENT, VAXELN, VAXlab, VAXserver, VMS, VT, and
the DIGITAL logo.
X Window System is a trademark of Massachusetts Institute of Technology.
FCC NOTICE: The equipment described in this manual generates, uses, and may emit radio
frequency energy. The equipment has been type tested and found to comply with the limits for
a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed
to provide reasonable protection against such radio frequency interference when operated in
a commercial environment. Operation of this equipment in a residential area may cause
interference, in which case the user at his own expense may be required to take measures to
correct the interference.

S1679

This document was prepared using VAX DOCUMENT, Version 1.2.

Contents
Preface

Chapter 1 System Overview
1.1
Front View and Physical Description . . . . . . . . . . . . . . . . . . .
1.1.1
BA440 Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.1.1
Mass Storage Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.1.2
Card Cage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.1.3
Console Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.1.4
DSSI Connector (DSSI Bus 0) . . . . . . . . . . . . . . . . . . . .
1.1.1.5
Power Supply Controls and Indicators . . . . . . . . . . . . . .
1.1.1.6
Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2
Functional Description of Base System . . . . . . . . . . . . . . . . .
1.2.1
Base System Components . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.1.1
Central Processing Unit (CPU) . . . . . . . . . . . . . . . . . . .
1.2.1.2
Console Serial Line Unit (SLU) . . . . . . . . . . . . . . . . . . .
1.2.1.3
Main Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.1.4
Network Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.1.5
Embedded DSSI Host Adapters . . . . . . . . . . . . . . . . . . .
1.2.2
Optional Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.2.1
Mass Storage Devices and Controllers . . . . . . . . . . . . . .
1.2.2.2
Mass Storage Subsystems . . . . . . . . . . . . . . . . . . . . . . .
1.2.2.3
Mass Storage Expanders . . . . . . . . . . . . . . . . . . . . . . . .
1.2.2.4
Communications Controllers . . . . . . . . . . . . . . . . . . . . .
1.2.2.5
Real-Time Controllers . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.2.6
Printer Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.2.7
Other Available Options . . . . . . . . . . . . . . . . . . . . . . . . .
1.3
Dual-Host Capability (VMS Systems Only) . . . . . . . . . . . . . .

1–1
1–6
1–8
1–10
1–11
1–14
1–15
1–18
1–19
1–19
1–20
1–20
1–20
1–20
1–21
1–21
1–21
1–22
1–22
1–23
1–25
1–25
1–25
1–25

iii

Chapter 2 Operating the System
2.1
2.2
2.2.1
2.2.2
2.3
2.4
2.4.1
2.4.2
2.5
2.6
2.7
2.8
2.9

Before You Operate the System . . . . . . . . . . . . . . . . . . . . . . .
Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turning On the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Booting the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Autobooting the System . . . . . . . . . . . . . . . . . . . . . . . . . . .
Booting the System from Console Mode . . . . . . . . . . . . . . .
Using the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Halting the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Restarting the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turning Off the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recovering from an Over Temperature Condition . . . . . . . . .

2–1
2–1
2–1
2–2
2–4
2–6
2–6
2–11
2–12
2–12
2–13
2–13
2–14

Chapter 3 Operating the System Options
3.1
Mass Storage Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.1
RF-Series Integrated Storage Elements . . . . . . . . . . . . . . .
3.1.1.1
RF-Series Controls and Indicators . . . . . . . . . . . . . . . . .
3.1.1.2
Changing the Bus Node ID Plugs . . . . . . . . . . . . . . . . .
3.1.2
TF85 Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.2.1
Design of the Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.2.2
Labeling a Tape Cartridge . . . . . . . . . . . . . . . . . . . . . . .
3.1.2.3
Write-Protecting a Tape Cartridge . . . . . . . . . . . . . . . . .
3.1.2.4
Tape Cartridge Handling and Storage Guidelines . . . . .
3.1.2.5
Inserting a Tape Cartridge . . . . . . . . . . . . . . . . . . . . . . .
3.1.2.6
Removing a Tape Cartridge . . . . . . . . . . . . . . . . . . . . . .
3.1.2.7
Summary of TF85 Tape Drive Controls and Indicators .
3.1.2.8
Cleaning the TF85 Tape . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.3
TK70 Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.3.1
Design of the Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.3.2
Labeling a Tape Cartridge . . . . . . . . . . . . . . . . . . . . . . .
3.1.3.3
Write-Protecting a Tape Cartridge . . . . . . . . . . . . . . . . .
3.1.3.4
Tape Cartridge Handling and Storage Guidelines . . . . .
3.1.3.5
Inserting a Tape Cartridge . . . . . . . . . . . . . . . . . . . . . . .

3–1
3–2
3–2
3–5
3–6
3–8
3–8
3–9
3–12
3–12
3–15
3–17
3–18
3–18
3–20
3–21
3–22
3–24
3–24

3.1.3.6
3.1.3.7

Removing a Tape Cartridge . . . . . . . . . . . . . . . . . . . . . .
Summary of TK70 Tape Drive Controls and Indicator
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4
TLZ04 Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.1
Proper Handling of Cassette Tapes . . . . . . . . . . . . . . . .
3.1.4.2
Setting the Write-Protect Tab on the Cassette Tape . . . .
3.1.4.3
Inserting a Cassette Tape into the Drive . . . . . . . . . . . .
3.1.4.4
System Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.4.5
Cleaning the Heads . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.5
RV20 Optical Disk Subsystem . . . . . . . . . . . . . . . . . . . . . .
3.1.6
RRD40-Series Compact Disc Drive Subsystem . . . . . . . . . .
3.1.7
TSV05 Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.8
TSZ07 Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.9
TU81E Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2
Communications Controller Options . . . . . . . . . . . . . . . . . . .
3.2.1
Asynchronous Serial Controllers . . . . . . . . . . . . . . . . . . . .
3.2.1.1
Asynchronous Controllers Without Modem Support . . . .
3.2.1.2
Asynchronous Controllers With Modem Support . . . . . .
3.2.2
Synchronous Controllers . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2.3
Network Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3
Real-Time Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4
Printer Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5
Adding Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–27
3–29
3–30
3–32
3–33
3–34
3–35
3–36
3–37
3–38
3–38
3–38
3–38
3–38
3–38
3–39
3–40
3–40
3–41
3–42
3–43
3–43

Appendix A Related Documentation
Appendix B Programming Parameters for DSSI Devices
B.1 DSSI Device Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–1
B.2 How VMS Uses the DSSI Device Parameters . . . . . . . . . . . . B–3
B.3 Examining and Setting DSSI Device Parameters . . . . . . . . . . B–4
B.3.1
Entering the DUP Driver Utility . . . . . . . . . . . . . . . . . . . . B–8
B.3.2
Setting Allocation Class . . . . . . . . . . . . . . . . . . . . . . . . . . . B–9
B.3.3
Setting Unit Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–10
B.3.4
Setting Node Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–13
B.3.5
Setting System ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–13

B.3.6

Exiting the DUP Server Utility . . . . . . . . . . . . . . . . . . . . . B–14

Appendix C Backup Procedures
C.1 Overview of Standalone BACKUP . . . . . . . . . . . . . . . . . . . . .
C.1.1
Installing Standalone BACKUP on the System Disk . . . . .
C.1.2
Booting Standalone BACKUP from the System Disk . . . . .
C.1.3
Installing Standalone BACKUP on a Tape Cartridge . . . . .
C.1.4
Booting Standalone BACKUP from a Tape Cartridge . . . .
C.2 Backing Up the System Disk . . . . . . . . . . . . . . . . . . . . . . . . .
C.3 Restoring the System Disk . . . . . . . . . . . . . . . . . . . . . . . . . . .

C–1
C–2
C–2
C–3
C–5
C–6
C–9

Appendix D Removing Unwanted VMS Files
D.1

Using VMSTAILOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

D–1

Glossary

Index
Examples
B–1 SHOW DSSI Display (Embedded DSSI) . . . . . . . . . . . . . . . . .
B–2 SHOW UQSSP Display (KFQSA-Based DSSI) . . . . . . . . . . . .
B–3 Starting the DUP Driver Utility (Embedded DSSI) . . . . . . . .
B–4 Starting the DUP Driver Utility (KFQSA-Based DSSI) . . . . .
B–5 Setting Allocation Class for a Specified Device . . . . . . . . . . .
B–6 Setting a Unit Number for a Specified Device . . . . . . . . . . . .
B–7 Changing a Node Name for a Specified Device . . . . . . . . . . . .
B–8 Changing a System ID for a Specified Device . . . . . . . . . . . .
B–9 Exiting the DUP Driver Utility for a Specified Device . . . . . .
B–10 SHOW DSSI Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B–11 SHOW UQSSP Display (KFQSA-Based DSSI) . . . . . . . . . . . .

B–7
B–8
B–9
B–9
B–10
B–11
B–13
B–14
B–15
B–15
B–16

Figures
1–1
1–2
1–3
1–4
1–5
1–6
1–7
1–8
1–9
1–10
1–11
1–12
1–13
2–1
2–2
2–3
2–4
2–5
2–6
2–7
3–1
3–2
3–3
3–4
3–5
3–6
3–7
3–8
3–9
3–10
3–11
3–12
3–13
3–14
3–15

VAX 4000 System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Key Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Upper Door Opened . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Entire Door Opened . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front View of the BA440 Enclosure . . . . . . . . . . . . . . . . . . . .
Mass Storage Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Card Cage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Console Module Controls and Connectors . . . . . . . . . . . . . . .
Connector for DSSI Bus 0 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Controls and Indicators . . . . . . . . . . . . . . . . . .
Sample Power Bus Configuration . . . . . . . . . . . . . . . . . . . . . .
System Air Circulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dual-Host Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Language Selection Menu . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sample Error Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Successful Power-Up and Automatic Boot . . . . . . . . . . . . . . .
Successful Power-Up to List of Bootable Devices . . . . . . . . . .
Selecting a Bootable Device . . . . . . . . . . . . . . . . . . . . . . . . . .
Sample SHOW DEVICE Display . . . . . . . . . . . . . . . . . . . . . .
Successful Power-Up to Console Mode . . . . . . . . . . . . . . . . . .
RF-Series ISE Controls and Indicators . . . . . . . . . . . . . . . . .
Inserting Bus Node ID Plugs . . . . . . . . . . . . . . . . . . . . . . . . .
TF85 Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Labeling a Tape Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tape Cartridge Write-Protect Switch . . . . . . . . . . . . . . . . . . .
Inserting a Tape Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing a Tape Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . .
TK70 Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Labeling a Tape Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tape Cartridge Write-Protect Switch . . . . . . . . . . . . . . . . . . .
Inserting a Tape Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing a Tape Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . .
TLZ04 Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Write-Protect Tab on the Cassette Tape . . . . . . . .
Inserting a Cassette Tape into the Drive . . . . . . . . . . . . . . . .

1–2
1–3
1–4
1–5
1–7
1–8
1–10
1–12
1–15
1–16
1–18
1–19
1–27
2–3
2–6
2–7
2–7
2–8
2–10
2–11
3–3
3–5
3–7
3–9
3–11
3–14
3–16
3–20
3–21
3–23
3–26
3–28
3–31
3–34
3–35

vii

3–16 Inserting the Head Cleaning Cassette . . . . . . . . . . . . . . . . . . 3–37
B–1 VMS Operating System Requires Unique Unit Numbers for
DSSI Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–4
B–2 Sample DSSI Busses for an Expanded VAX 4000 Model 300
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–5
B–3 Attaching a Unit Number Label to the Device Front Panel . . B–12

Tables
2–1
2–2
3–1
3–2
3–3
3–4
3–5
3–6
3–7
3–8
C–1

viii

Normal Power-Up Indications . . . . . . . . . . . . . . . . . . . . . . . .
Device Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF-Series Controls and Indicators . . . . . . . . . . . . . . . . . . . . .
Read/Write Cartridge Compatibility with the TF85 Tape
Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TF85 Tape Drive Controls . . . . . . . . . . . . . . . . . . . . . . . . . . .
TF85 Tape Drive Indicators . . . . . . . . . . . . . . . . . . . . . . . . . .
TK70 Tape Drive Controls . . . . . . . . . . . . . . . . . . . . . . . . . . .
TK70 Tape Drive Indicator Lights . . . . . . . . . . . . . . . . . . . . .
TLZ04 Drive Indicators (Normal Conditions) . . . . . . . . . . . . .
TLZ04 Drive Indicators (Abnormal Conditions) . . . . . . . . . . .
Standalone BACKUP Qualifiers . . . . . . . . . . . . . . . . . . . . . . .

2–4
2–10
3–4
3–6
3–17
3–17
3–29
3–29
3–32
3–32
C–7

Preface
This manual describes how to use VAX 4000 Model 300 timesharing and
VAXserver 4000 Model 300 server systems. The hardware and software
for each of these systems differs slightly, according to the function of the
system. The VAX 4000 is a multiuser system that uses the VMS operating
system. The VAXserver 4000 system is a single-user system that uses VMS
or VAXELN operating systems. Both systems can function as an end- or
full-function node on an Ethernet network.
The manual is structured as follows:
•

Chapter 1 provides an overview of the systems.

•

Chapter 2 describes how to use each system.

•

Chapter 3 describes how to use options installed in the systems.

•

Appendix A lists related documentation.

•

Appendix B describes how to set and examine DSSI device parameters
from console mode.

•

Appendix C describes procedures for creating backup files.

•

Appendix D describes how to use VMSTAILOR to remove unwanted
VMS files from the system disk.

•

A glossary explains key terms.

NOTE: VAXserver systems are designed to offer maximum performance for
applications that do not require timesharing. Some of the devices referred to
in this manual are designed for multiuser systems and may not be suitable
for server systems. Contact your Digital service representative if you have
any questions about whether use of a specific device is appropriate for your
server system.

Conventions
The following conventions are used in this manual:
Convention

Meaning

Key

A symbol denoting a terminal key used in text and examples in this book.
For example, Break indicates that you press the Break key on your terminal
keypad. Return indicates that you press the Return key on your terminal
keypad.

Ctrl/C

A symbol indicating that you hold down the Ctrl key while you press the
C key.

BOLD

This bold type indicates user input. For example:
>>>BOOT MUA0
This line shows that the user must enter BOOT MUA0 at the console
prompt.

NOTE

Provides general information about the current topic.

CAUTION

Provides information to prevent damage to equipment or software.

WARNING

Provides information to prevent personal injury.

Chapter 1

System Overview
VAX 4000 systems house all components in a BA440 enclosure.
enclosure is a free-standing pedestal that houses the following:
•

Card cage

•

System controls

•

Central processing unit (CPU) module

•

Memory modules

•

Communications controller modules

•

Tape drive controller module

•

Console module

•

RF-series Integrated Storage Elements

•

TF85, TK70, or TLZ04 tape drive

•

Power supply

•

Fans

This

Up to four RF-series Integrated Storage Elements (ISEs) or three RF-series
ISEs and a tape drive can be mounted inside the BA440 enclosure.
This chapter describes the VAX 4000 system components and their
functions.
Chapters 2 and 3 describe how to use the system and options.

1.1 Front View and Physical Description
The front of the system has a divided door that restricts access to the system
controls. Figure 1–1 shows the system with the front door closed.

System Overview

1–1

Figure 1–1: VAX 4000 System

MLO-004032

A three-position rotary lock allows you to lock both the upper and lower
doors, or to lock just the lower door. Opening the upper door allows you to
access the controls for the RF-series Integrated Storage Elements (ISEs),
tape drive, and the System Control Panel (SCP). Opening the entire door
allows you to access all system controls and cable connections.

1–2 VAX 4000 Model 300 Operation

Figure 1–2 shows the three key positions and the controls accessible in each
position.
Figure 1–2: Key Positions

Door Handle

Rotary Key Lock
Top Key Position:
Access to SCP, ISEs, and
Tape Drive Controls and
Indicators (Upper Door)

Middle Key Position:
No Access to Controls

Bottom Key Position:
Access to Power Switch;
All Controls and Indicators
(Both Doors)

MLO-004958

Opening and Closing the Divided Door
The divided door allows you to access the mass storage devices and system
control panel (SCP), while restricting access to the power switch and the
console module. Open and close the door as follows:
1. Insert the key in the lock on the front door. Turn the key to the top
position to open just the upper portion of the door, or to the bottom
position to open the entire door.
With the key in the bottom position, the upper and lower portions of
the door will open together.
2. Swing the door open.
3. To close the door, simply reverse the procedure. When pushing the
doors closed, push gently at the top right of the upper door and the
bottom right of the lower door.

System Overview

1–3

Figure 1–3 shows the system with the upper portion of the door opened.
Figure 1–3: Upper Door Opened

Top Key Position

1–4 VAX 4000 Model 300 Operation

MLO-004034

Figure 1–4 shows the system with the entire door opened.
Figure 1–4: Entire Door Opened

Bottom Key Position
MLO-004035

The next section describes the BA440 enclosure, which is exposed when you
open the entire door.

System Overview

1–5

1.1.1 BA440 Enclosure
Opening the front door enables you to access the components housed in the
BA440 enclosure. Figure 1–5 shows a typical configuration.
The BA440 enclosure can contain the following:
•

Mass storage — TF85, TK70, or TLZ04 tape drive and up to three RFseries Integrated Storage Elements (ISEs), or four RF-series ISEs and
no tape drive

All VAX 4000 systems contain the following:
•

System control panel (SCP)

•

Card cage containing modules — CPU, memory, communications
controllers, mass storage controllers

•

Console module

•

Power supply

•

Fans

1–6 VAX 4000 Model 300 Operation

Figure 1–5: Front View of the BA440 Enclosure
Integrated Storage Elements (ISEs)
Tape Drive

System Control
Panel (SCP)

Power Supply
Console Module

Fans
Card Cage
MLO-004016

System Overview

1–7

1.1.1.1 Mass Storage Shelf
The mass storage shelf extends across the top of the enclosure. The shelf
contains a system control panel (SCP), tape drive, and up to three RF-series
ISEs (tapeless systems can have up to four RF-series ISEs). Each ISE has
its own panel with controls and indicators. Instructions for using ISEs and
the TF85, TK70, or TLZ04 tape drive are in Chapter 3. The SCP is to the
right of the storage devices. Figure 1–6 shows the mass storage shelf.
Figure 1–6: Mass Storage Shelf
ISE 2

ISE 1

ISE 0

Tape Drive

Over Temperature
Warning Indicator
DC OK Indicator
Halt Button
Restart Button
System Control Panel (SCP)
MLO-005386

The SCP has two indicators: the Over Temperature Warning light and the
DC OK indicator. The red Over Temperature Warning indicator flashes to
indicate that the system’s internal temperature is approaching a level that
may cause system components to overheat. In addition to the flashing Over
Temperature Warning light, an audible alarm also provides warning of a
possible over temperature condition. If the components continue to heat,
the system will automatically shut down to prevent components from being
damaged. Chapter 2 provides instruction for turning on the system after a
preventive shutdown due to overheat conditions.
The green DC OK indicator shows that the power supply voltages are within
the correct operating range. If the DC OK indicator is not lit when the
system power is on, refer to the VAX 4000 Troubleshooting and Diagnostics
manual included in the Customer Hardware Information Kit.
Below the indicators are the Halt and Restart buttons. The Halt button is
a two-position button. When you press the button, the system halts. A red
indicator on the Halt button lights when the button is set to the in position.
Before you can enter console commands, press the Halt button again to

1–8 VAX 4000 Model 300 Operation

return it to the out position. When the Halt button is returned to the out
position, the console mode prompt >>> is displayed on the console terminal
screen. Now you can enter console commands. If you inadvertently press
the Halt button, type ‘‘c Return ’’ to continue. Chapter 2 describes halting the
system in more detail.
CAUTION: Pressing the Halt button halts the system regardless of the
setting of the Break Enable/Disable switch on the console module.
Below the Halt button is the Restart button. The Restart button has a
green indicator. When you press the Restart button, the system returns to
a power-up condition and self-tests are run. If you have specified a device
as the boot device and if the Break/Enable Disable switch is set to disable,
the system will reboot system software. Further instructions on restarting
your system are in Chapter 2.
NOTE: The Halt and Restart buttons can be disabled to prevent accidental
activation. Contact your Digital service representative if you want to disable
the controls on the SCP.

System Overview

1–9

1.1.1.2 Card Cage
The modules in your system are mounted in a 12-slot card cage under the
mass storage shelf, as shown in Figure 1–7.
Figure 1–7: Card Cage

Slots 12 - 6

Slots 5 - 1

Baud
300___________0
600___________1
1200__________2
2400__________3
4800__________4
9600__________5
19200_________6
38400_________7
Bus 0

Bus 1

MLO-004037

The first four slots are reserved for memory modules. The fifth slot is
reserved for the central processing unit (CPU). A console module with
system controls and connectors covers these first five slots. Slots 6 through
12 are available for Q-bus option modules.
The number and type of modules installed in your system depend on your
configuration. Each Q-bus slot, even an empty one, is protected by a module
cover. Together the covers form a shield with a three-fold purpose:
•

To protect external devices from electrical interference generated by the
system

•

To protect the system from electrical interference generated by external
devices

1–10 VAX 4000 Model 300 Operation

•

To maintain air flow integrity

CAUTION: Do not operate the system without Digital-supplied module
covers. The covers are required to protect the equipment and to meet
international regulatory standards. Do not substitute other module covers
as they may not meet the required specifications.
Operating the system without the module covers has the following
consequences:
•

The system may overheat due to improper air circulation.

•

The system will not comply with FCC and VDE requirements for
electrostatic shielding and may produce electrical interference that
affects other equipment.

•

The system is susceptible to electrical interference or damage from
external sources.

The design of the module covers varies, depending on the type of module
installed in the slot. Modules requiring external cable connections, such as
communications controllers, have recessed covers that are riveted directly
to the module. The recessed module covers allow space for connecting
cables. Modules requiring no external cable connections, such as mass
storage controllers, are covered by flush covers. Empty slots are also
covered by flush covers which may be single or double width. All covers,
except those covering empty slots, have a label identifying the module
installed in the slot.
Cables connecting your system to peripheral devices (such as terminals,
modems, and printers) are attached to communications controllers. Each
cable can contain multiple lines. The cables run under the BA440 enclosure
and out the back or side of the enclosure, where the cables are split into
individual lines. Chapter 3 describes these connections in more detail.
1.1.1.3 Console Module
Your system can have up to four memory modules. The memory modules
occupy the first four slots of the card cage and are followed by the CPU. The
memory and CPU modules are behind the console module that covers the
first five slots. The console module, shown in Section 1.1.1.3, has several
system controls and connectors.

System Overview

1–11

Figure 1–8: Console Module Controls and Connectors

Console Module

Power-Up
Mode Switch
Baud Rate
Select Switch

Modified
Modular Jack
Baud
300___________0
600___________1
1200__________2
2400__________3
4800__________4
9600__________5
19200_________6
38400_________7

Break Enable/
Disable Switch
Bus 0

LED Display

Bus 1

DSSI
Connectors
Bus 1

Bus Node
ID Plugs
Ethernet
Connector
Switch

Standard
Ethernet
Connector
ThinWire
Ethernet
Connector
MLO-004038

The console module has the following components:
Power-Up Mode switch — This three-position rotary switch
determines how the system responds at power-up:

Language Inquiry Mode (in the top position, indicated
by a profile of a face) causes the system to display a
language selection menu at power-up if your console
terminal supports multiple languages. Also, if a default
boot device has not been selected, this mode causes the
system to issue a list of bootable devices and prompts you
to select a device from the list. Once a device is selected,
the system autoboots from that device each time you turn
it on.

1–12 VAX 4000 Model 300 Operation

Run Mode (in the middle position, indicated by an arrow)
is the normal operating setting.

Loop Back Test Mode (in the bottom position, indicated by
a T in a circle) causes the system to run loopback tests on
the console serial line at power-up. This setting requires
special loopback connectors and is for Digital Customer
Services use only.
Baud Rate Select switch — The Baud Rate Select switch is
used to set the system’s baud rate to match that of the console
terminal. The factory setting is position 5 (9600).
Modified modular jack (MMJ) — This console terminal connector
provides the connection for the console terminal.

The light-emitting diode (LED) display shows the testing
sequence during power-up.

Break Enable/Disable switch — When the switch is down
(position 0), breaks are disabled. When the switch is up (position
1), breaks are enabled. When breaks are enabled, pressing
Break on the console terminal halts the processor and transfers
control to the console program. Using the console command SET
CONTROLP, you can specify the control character, Ctrl/P , rather than
Break to initiate a break signal.
The Break Enable/Disable switch also controls what happens at
power-up. When breaks are disabled (down, position 0), the
system attempts to automatically boot software at power-up.
When breaks are enabled (up, position 1), the system enters
console mode (indicated by the >>>prompt) at power-up.
Using the console command, SET HALT REBOOT or SET HALT
RESTART_REBOOT, you can set your system to automatically boot

software after the system is halted due to pressing Break .

Bus node ID plugs — VAX 4000 systems have two separate
Digital Storage System Interconnect (DSSI) busses. Two DSSI
bus node ID plugs, one for the internal DSSI bus, Bus 0, and
one for the external bus, Bus 1, identify the bus node of the

System Overview

1–13

CPU. These plugs are configured at the factory. For single-host
systems, Bus 0 is identified as bus node 6, bus 1 is identified as
bus node 7; for dual-host systems, both busses on the first host
are identified as bus node 7, and both busses on the second host
are identified as bus node 6.
DSSI connectors (DSSI Bus 1) — Two Digital Storage System
Interconnect (DSSI) connectors, labeled X and Y, on the console
module allow you to expand your system by connecting additional
mass storage devices to the second DSSI bus.
Ethernet connectors — The console module has two Ethernet
connectors: a BNC-type connector for ThinWire Ethernet, and
a 15-pin connector for a standard Ethernet transceiver cable.
The Ethernet connector switch allows you to set the type of
connection. To use the standard transceiver cable connection,
set the switch to the up position. To use the ThinWire cable
connection, set the switch to the down position. A green indicator
light (LED) for each connector indicates which connection is
active.
1.1.1.4 DSSI Connector (DSSI Bus 0)
To the left of the card cage is the DSSI connector for DSSI Bus 0. Bus 0
provides the DSSI bus for DSSI devices installed in the system enclosure.
The connector allows you to expand your system by connecting additional
mass storage devices to the bus. You can also share mass storage devices
with a second system by forming a dual-host configuration. Figure 1–9
shows the location of the DSSI connector for DSSI Bus 0.

1–14 VAX 4000 Model 300 Operation

Figure 1–9: Connector for DSSI Bus 0

DSSI Bus 0

MLO-004039

1.1.1.5 Power Supply Controls and Indicators
To the right of the card cage is the power supply. The power supply provides
power to the mass storage devices, the modules installed in the card cage,
and the fans.
To prevent damage due to overheating, the power supply monitors the
internal temperature and the speed of the fans. If the power supply detects
overheating or a fan failure, the power supply will shut down the system.

System Overview

1–15

Figure 1–10 shows the controls and indicators on the power supply.
Figure 1–10: Power Supply Controls and Indicators

Power Switch
AC Present Indicator
DC OK Indicator
Fan Failure
Indicator
Over Temperature
Condition Indicator

Power Bus
Connectors

Power Cable
Connector

MLO-004040

The controls and indicator lights function as follows:
Power switch — The power switch is used to turn system power
on and off. The off position is indicated by a 0; the on position is
indicated by a 1.
The power switch also functions as the system circuit breaker.
In the event of a power surge, the breaker will trip, causing the
power switch to return to the off position (0). Turning the system
on resets the circuit breaker. If the circuit breaker trips, wait one
minute before turning on the system back on.
AC Present Indicator — The orange AC Present indicator lights
when the power switch is set to on and voltage is present at the

1–16 VAX 4000 Model 300 Operation

input of the power supply. If the AC Present indicator does not
light when the power switch is set to on, refer to your VAX 4000
Troubleshooting and Diagnostics manual.
DC OK — When the green DC OK indicator is lit, the power
supply voltages are within the correct operating range. If the
DC OK indicator does not light when the power switch is set
to on, refer to your VAX 4000 Troubleshooting and Diagnostics
manual.
Fan Failure indicator — The amber Fan Failure indicator lights
if either of the two cooling fans stop working. The power supply
will automatically shut down the system as a precautionary
measure when a fan failure is detected. Call your Digital service
representative if a fan failure occurs.
Over Temperature Condition indicator — The amber Over
Temperature Condition indicator lights if the enclosure has shut
down due to an over temperature condition. Section 2.9 provides
instructions on recovering from an over temperature condition.
Power bus connectors — Three power bus connectors allow you
to configure a power bus for systems expanded with the R400X
or B400X expander. The power bus allows you to turn power
on and off for one or more expanders through the power supply
designated as the main power supply: this way, one power switch
can control power for an entire expanded system. Figure 1–11
illustrates a possible power bus configuration for an expanded
system.
NOTE: Dual-host systems should not be configured with a power
bus. Inadvertently shutting off a host system defeats the added
reliability of a dual-host system.
The main out (MO) connector sends the power control
bus signal to the expander. One end of a power bus
cable is connected here, the other end is connected to the
secondary in (SI) connector of an expander power supply.
The secondary in (SI) connector receives the power bus
control signal from the main power supply. In a power
bus with more than one expander, the power control bus

System Overview

1–17

signal is passed along, using the secondary in and out
connectors as shown in Figure 1–11.
The secondary out (SO) connector sends the signal down
the power bus for configurations of more than one
expander.
Figure 1–11: Sample Power Bus Configuration
System

Expander 1

Expander 2

MLO-004041

1.1.1.6 Fans
Two fans located under the card cage draw air in through the top of the
enclosure, down through the card cage, and out the bottom. The speed of
the fans varies, depending on the surrounding room temperature. To reduce
the load on the fans, keep the system away from heat sources. Figure 1–12
shows the air flow through the system enclosure.
NOTE: The power supply monitors the fans. If either fan stops working,
the Fan Failure indicator on the power supply lights, and the system
automatically shuts down as a precautionary measure. Call your Digital
service representative if a fan fails.

1–18 VAX 4000 Model 300 Operation

NOTE: The fan speed control can be set so that the fans will run at their
maximum speed. This setting is recommended if you want potentially higher
system module reliability, and do not object to the increased fan noise.
Contact your Digital service representative to override the fan speed control.
Figure 1–12: System Air Circulation

MLO-004042

1.2 Functional Description of Base System
Each VAX 4000 system includes base system components common to all
systems. Your system may have optional components as well. Your system
was configured at the factory, based on your order.
The following sections describe base system components and options, in
turn.

1.2.1 Base System Components
Base system components include the following:
•

Central processing unit (CPU)

•

Console serial line unit (SLU)

•

Main memory

System Overview

1–19

•

Network controller

•

Embedded DSSI host adapters

1.2.1.1 Central Processing Unit (CPU)
The central processing unit (CPU) controls the execution of all instructions
and processes. The CPU circuits contain the logic, arithmetic, and control
functions used by the system.
1.2.1.2 Console Serial Line Unit (SLU)
Each system has a serial line unit connecting the console terminal to the
system. The SLU connector (a modified modular jack) is located on the
console module. The console serial line provides a means of communicating
with the CPU.
1.2.1.3 Main Memory
Main memory provides the electrical storage area for data and instructions
used by the CPU. When you start your system, the operating system is
loaded into main memory. Application programs must also be loaded into
memory.
When the system cannot load everything into memory at once, it reads
in units of data called pages (512 bytes of data) from disk. A large main
memory increases the efficiency of processing, since fewer pages must be
copied to and from the disk. Each configuration comes with a standard
memory option. There is room for up to four memory modules. By adding
more main memory, you can increase efficiency.
The contents of memory are volatile. This means they are lost when
you turn off power to the system. Use mass storage devices, such as
integrated storage assemblies and tape cartridges, to store software and
data permanently.
1.2.1.4 Network Controller
Network communications controllers allow you to connect to an Ethernet
network. With a network connection and appropriate DECnet software, you
can use network services, such as mail; access data stored on other systems;
perform operations, such as editing and printing on remote systems; and
share resources, such as laser printers. Your system comes with an onboard
Ethernet controller that is part of the CPU. The system can connect to
an Ethernet network through either standard Ethernet cable or ThinWire
Ethernet cable. Connectors for both types of cables are on the console
module.

1–20 VAX 4000 Model 300 Operation

1.2.1.5 Embedded DSSI Host Adapters
Your system has two Digital Storage Systems Interconnect (DSSI) adapters
built into the CPU. The DSSI adapters provide a path to two separate DSSI
busses (Bus 0 and Bus 1) through which the CPU can communicate with
DSSI devices. Each DSSI adapter can support seven DSSI devices.
The DSSI host adapters also allow you to link one of the DSSI busses to a
second host to form a dual-host configuration. When a DSSI bus is extended
to a second system, both systems can share up to six DSSI devices. Refer to
Section 1.3 for further discussion of DSSI VAXcluster or dual-host systems.

1.2.2 Optional Components
System options can include multiples of components that are part of the
base system (for example, additional memory modules or ISEs) and the
following kinds of options:
•

Mass storage devices and controllers

•

Mass storage subsystems

•

Mass storage expanders

•

Communications controllers and adapters

•

Real-time controllers

•

Printer interfaces

1.2.2.1 Mass Storage Devices and Controllers
Mass storage devices record data on magnetic media. The data recorded is
not lost when you turn off the system, but can be altered or erased if you
record over the data. Use mass storage devices to store data and software
permanently. When the data or software is needed, the CPU transfers it
from the mass storage device into main memory. The two primary types
of mass storage devices are the RF-series ISEs and devices with removable
media, such as tape cartridges and compact disks.
Integrated Storage Elements
Up to four RF-series ISEs can be installed in your system. An ISE is
an intelligent storage device that contains its own controller and server.
Special mounting hardware allows the device to plug directly into the
BA400-series backplane.
Devices with Removable Media
Devices with removable media, such as tape cartridges, are used as both
input and output devices. In addition, compact optical disks are used as

System Overview

1–21

input devices when you install software or copy data to your system. You
use tape cartridges and tapes as output devices when you copy software or
data from your system. You can copy individual files or programs, or you
can copy (back up) the contents of an entire fixed disk. Tapes are commonly
used to archive data.
Mass Storage Controllers and Adapters
All mass storage devices require a controller, a device that controls activity
between the CPU and the mass storage devices. While the controller for a
DSSI device is built into the storage device, other storage options require a
controller module located in your system’s card cage. The controller for the
TK70 tape drive is the TQK70; the KDA50 is a controller for RA-series disk
drives. Each KDA50 controller supports up to four RA-series disk drives.
The KZQSA adapter allows the CPU to communicate with the TLZ04 tape
drive or RRD40-series digital compact disk drive. Each KZQSA adapter
can support up to two drives.
The CPU communicates with DSSI devices through a Digital Storage
Systems Interconnect (DSSI) adapter, which is built into the CPU. Your
VAX 4000 system has two DSSI adapters and, hence, two separate DSSI
busses. Each DSSI bus is capable of supporting seven DSSI devices. A
third and fourth DSSI bus can be added to your system by using up to two
KFQSA DSSI storage adapter modules. Each KFQSA storage adapter can
support up to seven DSSI devices.
NOTE: As of this printing, the KFQSA storage adapter does not yet support
the TF85 tape drive.
1.2.2.2 Mass Storage Subsystems
Several optional mass storage subsystems are available for VAX 4000
systems. Such subsystems include RRD42 compact disc subsystem, the
RV20 Optical Disk Subsystem, TSZ07, TS05, and TU81 tape drives, and the
SA600 Storage Array (with up to eight RA90 disk drives). If your system
includes an optional mass storage subsystem, refer to the user’s guide or
owner’s manual for that subsystem for instructions on how to operate the
device.
1.2.2.3 Mass Storage Expanders
You can expand the mass storage and Q-bus capacity of your VAX 4000
system by using the following expanders:
•

The R400X mass storage expander provides space for up to seven
additional RF-series ISEs or up to six RF-series ISEs and a tape drive
(TF85 or TLZ04). Using R400X expanders, you can fill both DSSI busses
for a total of 14 DSSI devices.

1–22 VAX 4000 Model 300 Operation

•

The R215F expander provides space for up to three RF-series ISEs.

•

The B400X expander provides 11 additional Q-bus slots for a system
total of 18 Q-bus slots. The B400X also has space for up to four
additional RF-series ISEs or up to three ISEs and a tape drive (TF85,
TK70, or TLZ04).

•

The B213F expander also provides 11 additional Q-bus slots and
provides space for up to four RF-series ISEs or up to three ISEs
and a TK70 tape drive. Contact your Digital representative for more
information on these and other expander products.

1.2.2.4 Communications Controllers
Besides the console serial line, most systems have additional communications controllers for connecting additional terminals, and for communicating with other systems over telephone or network lines. Communications
controllers provide standard interfaces between peripheral devices and the
system. Many communications controllers provide support for multiple
data lines.
The following types of communications controllers are available:
•

Asynchronous serial controllers

•

Synchronous serial controllers

•

DECservers

•

Network controllers

Serial controllers transmit data one character at a time. A device at the
transmitting end breaks bytes of data into bits. A device at the receiving
end assembles incoming bits into bytes of data.
Asynchronous Serial Controllers
Asynchronous serial controllers provide low-speed connections between
peripheral devices and the system. Asynchronous communication between
the system and the peripheral depends on recognition of a pattern of start
and stop bits, not on a time interval.
Asynchronous serial controllers may be divided into those without modem
support and those with modem support.
You use serial controllers without modem support to connect additional
terminals and printers to your system. For example, the CXA16 module
provides connections for up to 16 serial lines with no modem support.

System Overview

1–23

NOTE: Printers equipped with a microprocessor (intelligent printers) may
require modem control signals to function correctly. Do not attach a printer
requiring modem control signals to a controller with no modem support.
Check your printer documentation to determine the proper communications
interface for your printer.
Communications controllers with modem support allow you to communicate
over telephone lines. With a modem connected to your system, you can
access other computers and you can dial into your system from a remote
terminal or computer.
Computers transmit digital signals, while telephone lines (with the
exception of digital leased lines) transmit analog signals. When two
computers communicate over telephone lines, a modem is required at both
the transmitting and receiving ends of the line. At the transmitting end, the
modem converts digital signals from the computer (or terminal) to analog
signals prior to transmission. At the receiving end, another modem converts
the analog signals back into digital signals the computer can process.
The degree of modem support depends on the number of modem control
signals recognized by the device. Full modem support (according to Digital
standards) requires recognition of eleven signals. The CXY08 module
supports up to eight serial lines with full modem support.
Synchronous Serial Controllers
Synchronous serial controllers provide high-speed connections between
systems. Communication between synchronous devices depends on time
intervals that are synchronized before transmission of data begins.
Synchronous devices can also have modem support.
DECservers
DECservers are terminal servers (a combination of hardware and software)
that allow you to connect multiple terminals or printers to hosts in an
Ethernet Local Area Network (LAN).
Terminal servers perform the functions of traditional data terminal
switches but multiplex the lines over the Ethernet. Using a DECserver
offloads communications processing from the host system.
Network Controllers
Network communications controllers allow you to connect to an Ethernet
LAN or other network type. With a network connection and appropriate
DECnet software, you can use network services, such as mail; access data
stored on other systems; perform operations, such as editing and printing on
remote systems; and share resources, such as laser printers. The network

1–24 VAX 4000 Model 300 Operation

controller function for your system is implemented on the CPU module, but
a second network controller, the DESQA Ethernet adapter module, can be
added to your system.
1.2.2.5 Real-Time Controllers
Real-time controllers interface with devices that monitor or control
particular processes, for example, laboratory equipment or manufacturing
equipment connected to the system. Typically, real-time controllers are
parallel devices, not serial devices.
1.2.2.6 Printer Interfaces
Some printers require specific interfaces to communicate with the system.
For example, the LG01, LG02, and LP29 and LP37 printers require the
LPV11–SA interface module.
1.2.2.7 Other Available Options
Your system arrives configured with the options you ordered. As your needs
change, you can add more options. Your Digital sales representative can
advise you on available options. VAX 4000 Model 300 Technical Information
describes the options currently available for VAX 4000 systems. Digital
provides installation for additional options that you order.

1.3 Dual-Host Capability (VMS Systems Only)
A dual-host system consists of two systems in a DSSI VAXcluster sharing
their DSSI devices through a Digital Storage Systems Interconnect (DSSI)
bus. Each system can have direct access to any of the devices in either
system; this can include a shared common system disk.
The primary application for such a configuration is a DSSI VAXcluster
system. The simplest dual-host configuration, for example, is to configure
one system disk to be used as the system disk by both systems. The system
disk physically resides in one enclosure, however, both systems have equal
access to the system disk and to any other DSSI mass storage device in
either enclosure.
A DSSI device, such as the RF72, has a built-in dual-host capability
that allows it to connect to two DSSI host adapters. The DSSI storage
adapter, embedded in the system’s CPU, allows you to extend a DSSI bus
by physically connecting it to another system.
Using an external DSSI cable, any two DSSI-based systems can
be connected to form a DSSI VAXcluster or dual-host configuration.
Figure 1–13 shows a dual-host configuration with two VAX 4000 systems.

System Overview

1–25

NOTE: Dual-host capability for VAX 4000 systems is only supported under
VMS (Version 5.3–2 and later) when the two systems are configured into the
same VAXcluster.
The benefits of a dual-host configuration are:
•

VAXcluster features such as shared data across systems and satellite
nodes.

•

Higher system availability — If one of the DSSI-based systems is
unavailable, for example, due to a system malfunction, the satellites
booted through it are able to continue operating through the other
system.

If one of the DSSI-based systems fails, all satellite nodes booted through
that system lose connections to the system disk. Each satellite node knows,
however, that the system disk is also available through a second path. The
satellite nodes establish a new connection through the other system and
continue operation.
To increase system availability, a second system disk may be added to each
boot node. In the event of one system disk failure, the remaining system
disk would continue to serve one DSSI-based system and the satellite nodes
booted through it. As with any VAXcluster, however, a second system disk
improves availability while increasing system management tasks.

1–26 VAX 4000 Model 300 Operation

Figure 1–13: Dual-Host Configuration

MLO-004043

VAX 4000 Dual-Host Systems provides more information on dual-host
configurations.

System Overview

1–27

Chapter 2

Operating the System
This chapter describes how to operate your VAX 4000 system once
the system software has been installed or you have completed startup
procedures for factory-installed VMS.

2.1 Before You Operate the System
This chapter assumes that your system has been properly installed.
Installation includes running the diagnostic software shipped with your
system and installing the base operating system, or completing the first
time startup procedures for factory-installed VMS. Refer to Appendix A of
the VAX 4000 Model 300 Installation manual for instructions on starting up
factory-installed VMS. To install other operating system options or layered
products, see the instructions in your system software installation manual
or layered product installation manual. Some of the instructions may
require you to open the front door of the system to change switch settings
on the console module.
The remainder of this chapter assumes that system software has been
installed and first time startup procedures for factory-installed VMS have
been completed.

2.2 Switch Settings
Switch settings vary, depending on the operation being performed. The next
two sections describe switch settings for normal and for special operations.
Set the switches according to your needs.

2.2.1 Normal Operation
Switch settings for normal operation are the following:
•

The Break Enable/Disable switch on the console module is set to disable
(down, position 0). Digital recommends you run the system with breaks
disabled to prevent the user from inadvertently halting the system by
pressing Break on the console terminal. Halting the system causes all
activity to stop.

Operating the System

2–1

With breaks disabled, the system automatically boots system software
when powered on.
NOTE: You can use the console command SET CONTROLP to specify
the control character, Ctrl/P , rather than Break , to initiate a break signal.
Using the console command, SET HALT REBOOT or SET HALT
RESTART_REBOOT, you can set your system to automatically boot
software after the system is halted due to pressing Break .
•

The Power-Up Mode switch on the console module is set to Run
(indicated by an arrow).

•

The Baud Rate Select switch on the console module is set to 9600
(indicated by a switch setting of 5).

•

The Write-Protect button for each RF-series ISE is set to out (not lit).
This setting allows system software to write to the storage element.

•

The Run/Ready button for each RF-series ISE is set to in (glows green
when the storage element is not being used). This setting makes the
storage element available for use.

•

The Halt button on the SCP is set to out (not lit).

•

For expanded systems using power bus cables to link the R400X or
B400X expander, the power switches on all expander power supplies
should remain on (set to 1) at all times. The system power supply
sends the power bus signal needed to turn the expanders on or off.

2.2.2 Special Operation
Certain operations require that you change some of the normal operating
settings.
•

If you need the ability to halt the system from the console terminal, for
example, when installing system software or performing certain types
of backup, set the Break Enable/Disable switch to enable (up, position
1). This allows you to halt the system by pressing Break on the console
terminal.
NOTE: You can use the console command SET CONTROLP to specify
the control character, Ctrl/P , rather than Break , to initiate a break signal.
Using the console command, SET HALT REBOOT or SET HALT
RESTART_REBOOT, you can set your system to automatically boot
software after the system is halted due to pressing Break .

2–2 VAX 4000 Model 300 Operation

•

If you want data on a particular ISE to be write-protected, you must
set the Write-Protect switch to in (glows).
NOTE: ISEs containing system software and user accounts must remain
write-enabled. ISEs containing applications or sensitive data may be
write-protected.

•

If you want to use the Language Selection Menu to select a new
language for the console program, before you turn on your system, set
the Power-Up Mode switch to Language Inquiry Mode. A human profile
indicates the language inquiry mode. When you turn on your system,
a Language Selection Menu appears, as shown in Figure 2–1.

Figure 2–1: Language Selection Menu
KA670-A Vn.n VMB n.n
1) Dansk
2) Deutsch (Deutschland/Osterreich)
3) Deutsch (Schweiz)
4) English (United Kingdom)
5) English (United States/Canada)
6) Español
7) Français (Canada)
8) Français (France/Belgique)
9) Français (Suisse)
10) Italiano
11) Nederlands
12) Norsk
13) Português
14) Suomi
15) Svenska
(1..15):

Select a language by typing in the number listed next to the language.
Save the language you have selected by rotating the Power-Up Mode
switch to Run Mode, indicated by an arrow.
NOTE: If you do not select a language within 30 seconds, the system
defaults to English (United States/Canada).
If the Power-Up Mode switch is set to Run Mode (indicated by an arrow),
then the language selected is saved and is automatically used during
subsequent reboots of the system.

Operating the System

2–3

NOTE: If the Power-Up Mode switch is set to Language Inquiry Mode
(indicated by the human profile), the system will prompt for the language
at each power-up.
In addition to the Language Selection Menu, the system may issue a
list of bootable devices and prompt you to select a device from the list.
If this happens, refer to Section 2.4.1 for more information.
If your system has been powered off for more than 10 days, the
battery unit that saves the system clock and the language selection may
have run down. The Language Selection Menu will be automatically
displayed when you power on your system, regardless of the Power-Up
Mode switch setting. Once the system is booted, reset the system clock
as described in your system software manual.

2.3 Turning On the System
Once you have set the switches correctly, you are ready to turn on the
system. Use the following procedure:
1. Turn on the console terminal and wait for it to complete its self-tests.
2. Turn on the system by setting the Power switch to 1.
NOTE: For systems using the R400X or B400X expander linked by a
power bus cable, the Power switch on the VAX 4000 provides the power
control bus signal to the expander(s). Setting the Power switch to on (1)
on the VAX 4000 will cause the expander(s) to power up as well. The
Power switch on the expander(s) should always remain in the on position
(1).
When you turn on the power, you should see the indications listed in Table
2–1.

Table 2–1: Normal Power-Up Indications
Indicator

Normal Indication

System DC OK lights (power supply and SCP)

Glow green

AC Present light (power supply)

Glows orange

RF-series ISE Run/Ready lights

Glow green steadily within 20
seconds

RF-series ISE Fault light

Lights temporarily at power-up.

2–4 VAX 4000 Model 300 Operation

Table 2–1 (Cont.): Normal Power-Up Indications
Indicator

Normal Indication

TF85 tape drive indicator lights

Orange, yellow, and green lights
glow during self-tests. The green
light remains on.

TK70 tape drive indicator lights

Orange, yellow, and green lights
glow during self-tests. The green
light remains on.

TLZ04 tape drive indicators

Tape and drive indicators flash
during self-tests.
The drive
indicator glows green when selftests are successfully completed.

If you do not observe the indications in Table 2–1, refer to VAX 4000
Troubleshooting and Diagnostics.
Every time you turn on your system, it runs a series of self-tests on the
CPU and memory. Your console terminal first displays a line of information
identifying the CPU, the version of the firmware, and the version of VMB—
the primary bootstrap program. In the sample screens provided in this
chapter, the CPU is identified as a KA670–A, and the versions of the
firmware and primary bootstrap are indicated as n.n. Your system will
display actual version numbers. The console terminal then displays a
countdown as the system tests itself. When the self-tests are successful,
the system either autoboots system software or goes into console mode, as
described in Sections 2.4.1 and 2.4.2.
If your system detects an error during its self-tests, it displays an error
summary consisting of several lines of hexadecimal numbers. A Digital
service representative can use the error summary to diagnose the system.
Depending on the type of error, one or more error summaries may display
on the console terminal. A sample error summary is shown in Figure 2–2.

Operating the System

2–5

Figure 2–2: Sample Error Summary
KA670-A

Vn.n

VMB n.n

Performing normal system tests.
66..65..64..63..62..61..60..59..58..57..56..55..54..53..52..51..
50..49..48..47..46..45..44..43..42..41..40..39..38..37..36..35..
34..33..32..31..30..29..28..27..26..25..24..23..22..21..20..19..
18..17..16..15..14..13..12..11..10..09..08..07..
?5F 2 15 FF 0000 0000 02

; SUBTEST_5F_15, DE_SGEC.LIS

P1=00000000 P2=00000002 P3=5839FF00
P6=00000000 P7=00000000 P8=00000000
r0=00000054 r1=20084019 r2=00008206
r5=00000044 r6=000048DC r7=20008000
06..05..04..03..
Normal operation not possible.

P4=00000000 P5=00000000
P9=0000080A P10=00000003
r3=00000000 r4=00004210
r8=00008000 EPC=FFFF90D6

>>>

If possible, print out the error summary and give it to your Digital service
representative.

2.4 Booting the System
VAX 4000 systems boot in one of two ways. You can configure the system
to autoboot on power-up or you can manually boot the system from console
mode. The Break Enable/Disable switch setting determines how the system
boots.

2.4.1 Autobooting the System
When the Break Enable/Disable switch is set to disable (the normal
operating setting), the system runs self-tests and, on completion, attempts
to load system software. Additionally, if the Break Enable/Disable switch
is set to enable, and the halt action REBOOT or RESTART_REBOOT has been
defined using the SET HALT command, the system will automatically
attempt to load system software.
Depending on whether or not a boot device has been selected, the system
loads system software or prompts you to select a boot device.
Loading System Software (With Boot Device Selected)
When a boot device has been selected, the system identifies the boot device
and the number ‘‘2’’ displays on the screen. As the system begins booting,
the countdown continues from 1 to 0.

2–6 VAX 4000 Model 300 Operation

Figure 2–3 shows a successful power-up and automatic boot when DIA0
has been selected as the boot device.
Figure 2–3: Successful Power-Up and Automatic Boot
KA670-A Vn.n, VMB n.n
Performing normal system tests.
66..65..64..63..62..61..60..59..58..57..56..55..54..53..52..51..
50..49..48..47..46..45..44..43..42..41..40..39..38..37..36..35..
34..33..32..31..30..29..28..27..26..25..24..23..22..21..20..19..
18..17..16..15..14..13..12..11..10..09..08..07..06..05..04..03..
Tests completed.
Loading system software.
(BOOT/R5:0 DIA0)
2..
-DIA0
1..0..

Loading System Software (No Boot Device Selected)
If you have not selected a boot device when the Break Enable/Disable switch
is set to disable, the system runs self-tests and, on completion, issues a list
of bootable devices. You are prompted to select a boot device from the list,
as shown in Figure 2–4.
Figure 2–4: Successful Power-Up to List of Bootable Devices
KA670-A Vn.n VMB n.n
Performing normal system tests.
66..65..64..63..62..61..60..59..58..57..56..55..54..53..52..51..
50..49..48..47..46..45..44..43..42..41..40..39..38..37..36..35..
34..33..32..31..30..29..28..27..26..25..24..23..22..21..20..19..
18..17..16..15..14..13..12..11..10..09..08..07..06..05..04..03..
Tests completed.
Loading system software.
No default boot device has been specified.
Available devices.
-DIA0 (RF72)
-DIA1 (RF72)
-MUA0 (TK70)
-EZA0 (08-00-2B-06-10-42)
Device? [EZA0]:

To select a boot device, enter a device name at the system prompt. When you
have selected a boot device, the system boots from that device. Figure 2–5
shows a successful power-up when DIA0 has been selected as the boot

Operating the System

2–7

device. The next time the system is turned on, it will autoboot from the
device you have just selected.
NOTE: If you do not enter a device name within 30 seconds, the system
attempts to boot from the Ethernet device, EZA0.
Figure 2–5: Selecting a Bootable Device
KA670-A Vn.n VMB n.n
Performing normal system tests.
66..65..64..63..62..61..60..59..58..57..56..55..54..53..52..51..
50..49..48..47..46..45..44..43..42..41..40..39..38..37..36..35..
34..33..32..31..30..29..28..27..26..25..24..23..22..21..20..19..
18..17..16..15..14..13..12..11..10..09..08..07..06..05..04..03..
Tests completed.
Loading system software.
No default boot device has been specified.
Available devices.
-DIA0 (RF72)
-DIA1 (RF72)
-MUA0 (TK70)
-EZA0 (08-00-2B-06-10-42)
Device? [EZA0]:DIA0
(BOOT/R5:0 DIA0)
2..
-DIA0
1..0..

Changing the Boot Device
Once a boot device is identified, the system autoboots from that device each
time you turn it on, until you do one of the following:
•

Change the setting of the Break Enable/Disable switch to enable (up,
position 1). If you do so, the system will not autoboot but will enter
console mode after completing self-tests (assuming you have not defined
a halt action of REBOOT or RESTART_REBOOT using the SET HALT console
command). Refer to Section 2.4.2 for instructions on booting from
console mode.

•

Change the boot device by using the SET BOOT command.

2–8 VAX 4000 Model 300 Operation

Using the SET BOOT Command
To direct the system to boot automatically from a specific device or to change
the setting of the default boot device, put the system into console mode and
at the >>> prompt, enter ‘‘SET BOOT device-name’’. For example,
>>>SET BOOT EZA0
sets the system default boot device to be the Ethernet controller.
Once you have selected a boot device, the system autoboots from that device
each time you turn it on.
Using ‘‘SET BOOT device-name,device-name,device-name’’, you can also
specify a string of default boot devices (up to 32 characters, with devices
separated by commas and no spaces) for which the system will check for
bootable software. The system checks the devices in the order specified and
boots from the first one that contains bootable software. For example,
>>>SET BOOT DUA0,DIA0,MIA0,EZA0
directs the system to use DUA0, DIA0, MIA0, and EZA0 as the default
boot devices. When the system autoboots, or if the BOOT command is used
without specifying a device, the system will boot from the first default boot
device that contains bootable software.
NOTE: If included in a string of boot devices, the Ethernet device, EZA0,
should only be placed as the last device of the string. The system will
continuously attempt to boot from EZA0.
To determine the name of the device from which to boot the system, refer
to Table 2–2, or enter the SHOW DEVICE command at the console prompt
>>>. Figure 2–6 shows a sample list of devices. The system displays the
logical device name, preceded by a dash (–), for each device.
NOTE: Selecting a default boot device other than the Ethernet device, EZA0,
is not appropriate for diskless and tapeless systems which must boot software
over the network.

Operating the System

2–9

Figure 2–6: Sample SHOW DEVICE Display
>>>SHOW DEVICE
DSSI Bus 0 Node 0 (CLYDE)
-DIA0 (RF72)
DSSI Bus 0 Node 1 (BONNIE)
-DIA1 (RF72)
DSSI Bus 0 Node 6 (*)
DSSI Bus 1 Node 7 (*)
UQSSP Tape Controller 0 (774500)
-MUA0 (TK70)
SCSI Adaptor 0 (761400), SCSI ID 7
-MKA0 (DEC TLZ04 1991(c)DEC)
Ethernet Adapter
-EZA0 (08-00-2B-06-10-42)

Table 2–2: Device Names
Device Type

Controller/Adapter

Device Logical Name

RF-series ISE

Embedded DSSI host adapter
(part of CPU)

DImu1

RF-series ISE

KFQSA DSSI storage adapter

DUcu2

TF85 tape drive

Embedded DSSI host adapter
(part of CPU)

MImu1

TK70 tape drive

TQK70

MUcu3

TLZ04 tape drive

KZQSA adapter

MKAn

PROM (programmable
read-only memory)

MRV11 module

PRAu

Ethernet adapter

On-board (part of CPU)

EZA0

Ethernet adapter

DESQA Ethernet controller

XQAu

RA-series drives

KDA50

DUcu2

1 m = DSSI bus adapter (A = first bus (0); B = second bus (1).)

u = unit number (device unit numbers must be unique throughout the system).
When under operating system control, DIBu devices are recognized as DIAu devices.
2 c = MSCP controller designator (A = first, B = second, and so on.)
u = unit number (device unit numbers must be unique throughout the system).
3 c = TMSCP controller designator (A = first, B = second, and so on.)
u = unit number

For more information about the VAX 4000 system’s booting process, refer
to VAX 4000 Model 300 Technical Information.

2–10 VAX 4000 Model 300 Operation

2.4.2 Booting the System from Console Mode
When the Break Enable/Disable switch is set to enable, the system
powers on to console mode (indicated by the >>> prompt) after successfully
completing its self-tests (assuming you have not defined a halt action
of REBOOT or RESTART_REBOOT using the SET HALT console command).
Figure 2–7 shows a successful power-up to console mode.
Figure 2–7: Successful Power-Up to Console Mode
KA670-A Vn.n VMB n.n
Performing normal system tests.
66..65..64..63..62..61..60..59..58..57..56..55..54..53..52..51..
50..49..48..47..46..45..44..43..42..41..40..39..38..37..36..35..
34..33..32..31..30..29..28..27..26..25..24..23..22..21..20..19..
18..17..16..15..14..13..12..11..10..09..08..07..06..05..04..03..
Tests completed.
>>>

Loading System Software
To load system software from console mode, enter the BOOT command,
‘‘BOOT device name’’. For example,
>>>BOOT MUA0
tells the system to boot software from a cartridge in the TK70 tape drive.
If you enter the BOOT command without specifying a device, the system
will attempt to boot from the default boot device, or string of devices defined
by the SET BOOT command.
Using ‘‘BOOT device-name,device-name,device-name’’, you can also specify
a string of boot devices (up to 32 characters, with devices separated by
commas and no spaces) for which the system will attempt to boot software.
The system checks the devices in the order specified and boots from the
first one that contains bootable software. For example,
>>>BOOT DUA0,DIA0,MUA0,EZA0
directs the system to boot from the first device in the list that contains
bootable software.
NOTE: If included in a string of boot devices, the Ethernet device, EZA0,
should only be placed as the last device of the string. The system will
continuously attempt to boot from EZA0.

Operating the System

2–11

NOTE: To determine the name of the device from which to boot the system,
refer to Table 2–2.
Software manuals may instruct you to power on with break enabled and to
use the BOOT command.

2.5 Using the System
Once the system software is loaded, the first display for the system software
appears on the console terminal after a few seconds. That display is
described in the system software documentation.
You are now ready to use the system. Refer to the system software manuals
and application manuals for more specific instructions on using the system.
Your system software manuals cover the following:
•

Installing software on your system

•

Running software to perform tasks

•

Making and restoring backup copies of system software or data files

•

Accessing devices and utilities in your system

2.6 Halting the System
Halting the system interrupts all processes and returns control to the
console program. You may need to halt the system during software
installation. Or, you may want to boot the system from another device, for
example, a tape cartridge containing MicroVAX Diagnostic Monitor (MDM)
software.
CAUTION: Halting your system without following the shutdown procedure
described in your system software manuals may result in loss of data.
You can halt the system in two ways:
•

You can press the Halt button twice — in to halt the system, and out
to enter console mode.

•

If the Break Enable/Disable switch on the console module is set to
enable (indicated by 1) you can press the Break key on the console
terminal. If the Break Enable/Disable switch is not set to enable and
you wish to halt the system by pressing Break , change the setting of the
Break Enable/Disable switch from disable to enable.

2–12 VAX 4000 Model 300 Operation

NOTE: You can use the console command SET CONTROLP to specify
the control character, Ctrl/P , rather than Break , to initiate a break signal.
CAUTION: If you shut off your console terminal while breaks are enabled,
the system interprets the action as a break, and the system halts.
If you are using a system that is part of a VAXcluster, do not halt, restart,
or turn off the system without consulting the cluster manager. Performing
any of these activities will interrupt the processes of the entire cluster.
When the console mode prompt (>>>) is displayed on your screen, the
system is halted.
If you inadvertently halt the system, type ‘‘c Return ’’ at the console prompt.
The processes interrupted by the halt will continue.

2.7 Restarting the System
NOTE: Restarting the system aborts all current and pending operations. To
prevent loss of data, warn all users to log off prior to restarting the system.
Follow the shutdown procedure described in your system software manuals
before restarting the system.
Restarting returns the system to a power-up condition. All current and
pending operations are aborted and the usual power-up tests are run.
You restart the system by pressing the Restart button on the system control
panel.
NOTE: The Halt button must be out (not lit) to effect a restart operation.

2.8 Turning Off the System
CAUTION: Turning off your system without following the shutdown
procedure described in your system software manuals may result in loss
of data.
Once you have completed the recommended procedure, you can turn off
your system by setting the Power switch to 0.
NOTE: For systems expanded with the R400X or B400X expander and
linked by a power bus cable, you need only turn off the system unit: The
expander(s) will power down when you set the system Power switch to off
(0). Note that the orange ac indicator on the expander power supply should
remain lit even though the system Power switch set to off (0).

Operating the System

2–13

2.9 Recovering from an Over Temperature
Condition
If your system’s internal temperature approaches a level that may cause
components to overheat, an audible alarm will sound and the Over
Temperature Warning indicator on the SCP will flash. If the temperature
continues to increase, the system will automatically shut down.
If the overheat warnings are activated, the alarm sounds and the Over
Temperature Warning indicator flashes.
When the system shuts down due to overheating, the Over Temperature
Condition indicator on the power supply remains lit. To recover from a
shutdown, set the Power switch to off (0) and wait five minutes before
turning on the system.
To prevent an over temperature condition, use the following precautions:
•

Make sure your system is away from heat sources.

•

Check that the system’s air vents are not blocked.

•

Check that the room temperature is within acceptable limits as specified
in your VAX 4000 Site Preparation manual.

2–14 VAX 4000 Model 300 Operation

Chapter 3

Operating the System Options
This chapter describes how to use options that may already be part of your
system, or that you can add to your system. The following types of options
are covered:
•

Mass storage devices and controllers

•

Communications controllers

•

Real-time controllers

•

Printers

NOTE: Some of these options may not be appropriate for VAXserver 4000
systems. Contact your Digital representative if you have any questions about
whether a specific option is appropriate for your system.

3.1 Mass Storage Options
The following mass storage options may be included with VAX 4000
systems:
•

RF-series Integrated Storage Element (ISE)

•

TF85, TK70, or TLZ04 tape drive

NOTE: In addition, the RV20 Optical Disk Subsystem, RRD4x Digital Disc
Subsystem, TSZ07, TSV05, and TU81 tape drives can be attached to the
VAX 4000 system. If your system contains one of these options, refer to the
user’s guide or owner’s manual for instructions on how to operate the device.
This chapter describes how to use the controls for the RF-series ISEs and
the TF85, TK70, and TLZ04 tape drives. In the case of the tape drives,
it also describes how to insert and remove the tape cartridge. To use any
mass storage device, you must properly identify the device to the operating
system and use appropriate operating system commands. Refer to your
system software documentation for details.

Operating the System Options

3–1

3.1.1 RF-Series Integrated Storage Elements
Your system may have up to four RF-series ISEs or up to three RF-series
ISEs and a tape drive. When your system has multiple ISEs, Digital
recommends that you separate them according to function. For example, if
your system has two ISEs, you may want to use them as follows:
•

ISE 0 contains the operating system and applications installed on the
system.

•

ISE 1 contains work areas for each user with an account on the system.

The storage capacities and other specifications for RF-series ISEs are listed
in VAX 4000 Model 300 Technical Information.
NOTE: Refer to Appendix B for information on setting or examining
parameters for DSSI devices.
3.1.1.1 RF-Series Controls and Indicators
Each RF-series ISE has controls and indicators on its front panel. To access
the ISE controls you need only open the upper door (top key position).
Figure 3–1 shows the front panel of an RF-series ISE.
NOTE: If your system has less than the maximum number of ISEs: three
if you have a tape drive, or four without the tape drive, a blank ISE front
panel with no controls or indicators is used to cover the empty ISE cavities.
The front panels are required to meet international regulatory standards.

3–2 VAX 4000 Model 300 Operation

Figure 3–1: RF-Series ISE Controls and Indicators

Run/Ready Button
Write-Protect Button

Bus Node
ID Plug

Fault Indicator
MLO-004044

Each ISE has the following controls and indicators on its front panel.
•

Bus node ID plug

•

Fault indicator

•

Write-Protect button

•

Run/Ready button

Bus node ID plugs identify the bus node number of the ISEs to the system,
as well as the unit number by default. Bus node numbers are configured
at the factory in consecutive order from right to left. Tapeless systems can
have up to four ISEs, with the rightmost ISE as 0; and the leftmost ISE as
3.
Table 3–1 lists RF-series controls and indicators.

Operating the System Options

3–3

Table 3–1: RF-Series Controls and Indicators
Control

Position

Function

Bus Node ID Plug

Installed

The bus node ID plug identifies the bus node
ID number of the ISE to the system and is,
by default, the unit number. The ISE bus
node ID is factory set to a number 0 through
6.

Not Installed

The ISE bus node number is undefined. The
ISE fault indicator lights.

Lit

Indicates an error condition in the ISE.
The light is on temporarily during powerup sequence (normal condition).

Not lit

Indicates an error-free condition in the ISE.

In (lit, green)

ISE is on-line. When the ISE is available
for use, the green indicator light in the
switch is on. Under normal operation the
green indicator flashes as seek operations
are performed.

Out (not lit)

ISE is off-line and cannot be accessed. The
green indicator light cannot be lit when the
Run/Ready button is out.

In (lit, amber)

ISE is write-protected. Prevents system
software from writing to the ISE.

Out (not lit)

ISE is not write-protected. Normal position
for software operation. System software is
free to read from or write to the ISE.

Fault

Run/Ready

Write-Protect

The Write-Protect button controls whether the system can write data to
the ISE. The system can read from the ISE regardless of the setting of the
Write-Protect button. When the Write-Protect button is out (not lit), the
system can write to the ISE. Your system disk (the ISE containing system
software) and ISEs containing work areas for users should be write-enabled,
the normal operating setting.
If you want to write-protect an ISE containing sensitive data that you do
not want changed or accidentally erased, set the Write-Protect button to in
(lit).

3–4 VAX 4000 Model 300 Operation

3.1.1.2 Changing the Bus Node ID Plugs
Spare bus node ID plugs are supplied with your system. Use the spare plugs
to renumber your ISEs if you reconfigure your system with an expander, or
if you create a dual-host configuration.
The bus node ID plugs have prongs on the back that indicate the bus node
number (and by default, the unit number) of the ISE. To remove a bus node
ID plug, grasp it firmly and pull straight out. To insert a bus node ID plug,
align the two center prongs with the two center slots and press the plug
into the slots. See Figure 3–2.
Figure 3–2: Inserting Bus Node ID Plugs

Bus Node
ID Plug

MLO-004045

Use the rules below for renumbering your storage elements:
•

For each DSSI bus, do not duplicate bus node numbers for your storage
elements. You can only have one storage device identified as bus node
0, one storage device as 1, and so on.

•

By convention, the ISEs are numbered in increasing order from right
to left.

Operating the System Options

3–5

NOTE: If you change the bus node ID plugs while the system is operating,
you must turn off the system and then turn it back on for the new plug
positions to take effect.

3.1.2 TF85 Tape Drive
The TF85 tape drive is located behind the upper door of the system. To use
the drive, move the key to the top position and open the door.
The TF85 tape drive holds one removable magnetic tape cartridge. The
drive can read data written on either a CompacTape III, CompacTape II, or
CompacTape cartridge; but cannot write to a CompacTape II or CompacTape
cartridge. You must use a CompacTape III cartridge to make copies or
backups of software or data. You can identify the type of cartridge by the
label on the cartridge. Table 3–2 shows cartridge compatibility with the
TF85 tape drive.
NOTE: The TF85 can read cartridges recorded by TK-series tape drives.

Table 3–2: Read/Write Cartridge Compatibility with the TF85 Tape
Drive
CompacTape

CompacTape II

CompacTape III

Read

Read/Write

TF85 Tape Drive Controls and Indicators
The tape drive has two primary controls: the cartridge insert/release handle
(subsequently referred to as the ‘‘handle’’) and the Unload button. You use
the handle to insert or remove cartridges and lock them into position. Pull
the handle open to insert or remove a tape cartridge. Push the handle
closed to lock a tape cartridge into position and load the tape.
You use the Unload button to rewind and unload the tape. Rewinding and
unloading can also be controlled by software. Refer to your system software
manuals for appropriate commands.
A bus node ID plug on the drive’s front panel identifies the bus node number
of the device to the system as well as the unit number by default.
NOTE: Refer to Appendix B for information on setting or examining
parameters for DSSI devices.
The drive also has four indicator lights that show the status of the drive.

3–6 VAX 4000 Model 300 Operation

•

Write Protected (Orange): A steady orange light shows that the
cartridge is write protected.

•

Tape in Use (Yellow): A steady yellow light shows the tape is loaded. A
blinking yellow light shows the tape is in motion.

•

Use Cleaning Tape (Orange): A steady orange light shows the drive
needs cleaning.

•

Operate Handle (Green): A steady green light shows you can move
the handle to insert or remove a tape. A blinking green light shows
a cartridge load fault. You can also move the handle when the green
light is blinking.

All four lights blinking simultaneously indicate a fault condition.
Figure 3–3 shows the TF85 tape drive with the controls and indicators
labeled.

Tape In Use
Yellow
Use Cleaning Tape
Orange
Operate Handle
Green

To
Re Han Op
P
W
Un
ait res
d e
m
lo
s
ov le n t
ad
his
e
Lig But
Ta
to
ht
pe
n

Write Protected
Orange

lo
Un

Unload
Button

To
H
Ha C
O
Lo
nd los Inse and pe Wa
it
ad
le n
le e
r
th
th t Ta
Lig
is
is
pe
ht

W
rit
Pr e
ot
ec

te
d
pe
in
Us
Us
e
e
Cle
Ta anin
pe g
O
pe
Ha rat
nd e
le

Figure 3–3: TF85 Tape Drive

Cartridge Insert/
Release Handle

Bus Node
ID Plug
MLO-006543

To operate the drive properly, you must carefully monitor the indicators.
The instructions for inserting and removing cartridges, which appear later
in this section, tell you what should happen at each step. A table at the
end of the section summarizes indicator and control combinations.

Operating the System Options

3–7

3.1.2.1 Design of the Drive
The TF85 tape drive operates like a reel-to-reel tape deck. Inside the drive
is a take-up reel with a leader attached. Inside the cartridge is a single
reel containing the magnetic tape. When you insert the cartridge and push
in the handle, the leader in the drive automatically couples with the leader
in the cartridge, and the tape winds onto the take-up reel. The coupling
and winding process is called loading. When the automatic loading process
is complete, the tape is ready to use.
Once the cartridge is loaded, you cannot remove it without rewinding and
uncoupling the leaders, a process called unloading. Even if you have not
used the tape, you must unload it before you can remove the cartridge.
When you press the Unload button, the tape rewinds into the cartridge
and the leaders uncouple.
3.1.2.2 Labeling a Tape Cartridge
When recording data on a cartridge, label its contents.
For your
convenience, a slot for the label is provided on the front of the cartridge.
Write the identification on the label and insert the label in the slot on the
front of the cartridge, as shown in Figure 3–4. The label is visible when
the tape is in the drive.

3–8 VAX 4000 Model 300 Operation

Figure 3–4: Labeling a Tape Cartridge

Label Slot

MLO-000960

NOTE: Do not write on the tape cartridge or attach labels to the top, bottom,
or sides of the cartridge.
3.1.2.3 Write-Protecting a Tape Cartridge
Write-protecting a tape cartridge prevents accidental erasure of information
stored on the tape. You can write-protect a tape cartridge in two ways:
•

Set the write-protect switch on the cartridge to the write-protect
position.

•

Write-protect the cartridge by using operating system commands
described in your system software manuals.

Operating the System Options

3–9

Your system can read information on the tape regardless of the position of
the write-protect switch or whether writing is software disabled. However,
the system cannot write data to the tape when the write-protect switch is
set to the write-protect position, or when writing is software disabled.
When you use a cartridge to install software, make sure the cartridge is
write protected. Two icons on the switch indicate the write-protect status,
as shown in Figure 3–5. An orange rectangle is visible when the switch is
in the write-protect position. If you do not see an orange rectangle, slide
the switch toward the label slot.
When you insert a write-protected cartridge into the drive, the orange writeprotect indicator lights. The system recognizes the tape as being writeprotected under any one of the following conditions:
•

The write-protect switch on the cartridge is set to the write-protect
position.

•

An operating system command has write-protected the tape.

•

A tape recorded on a TK-series tape drive is inserted into the drive.

Removing write-protection depends on how the tape was recorded and how
it is write protected. You cannot write-enable a tape recorded on a TK50
/TK70 tape drive either by moving the write-protect switch on the cartridge
or by using software commands. The TF85 tape drive always recognizes a
tape recorded on a TK50/TK70 drive as write-protected. You can remove
write-protection on tapes recorded on a TF85 tape drive as follows:
•

If the cartridge is write protected only by the write-protect switch on the
cartridge and not the operating system, moving the switch to the writeenabled position causes the write-protect indicator light to go out.

3–10 VAX 4000 Model 300 Operation

Figure 3–5: Tape Cartridge Write-Protect Switch

WriteProtected

Not WriteProtected

MLO-000961

•

If the cartridge is write protected only by a software command and
not the write-protect switch, removing the operating system restriction
causes the write-protect indicator to go out.

•

If the cartridge is write protected by both the switch on the cartridge
and a software command, you must change the switch setting and
remove the operating system restriction.

Operating the System Options

3–11

When you use a CompacTape III cartridge to make a backup copy of files,
make sure the orange write-protect indicator on the TF85 is off. If the
indicator is not off, check for any of the write-protect conditions described
above. Change the switch setting and/or operating system restriction as
necessary. Do not begin your operation until the write-protect indicator
goes off.
3.1.2.4 Tape Cartridge Handling and Storage Guidelines
•

Do not touch the exposed surface of the tape.

•

Do not drop the tape cartridge. The impact from a fall can damage the
tape cartridge.

•

Allow new tapes to stabilize at room temperature for 24 hours before
using them.

•

Place an identification label only in the label slot on the front of the
tape cartridge.

•

Store tape cartridges in a dust-free environment.

•

Keep tape cartridges away from direct sunlight, heaters, and other
sources of heat. Store tape cartridges in a stable temperature between
10° and 40°C (50° and 104°F).

•

Store tape cartridges where the relative humidity is between 20 and 80
percent.

•

Keep tape cartridges away from magnets and equipment that generate
magnetic fields, such as motors, transformers, terminals, and audio
equipment.

•

Keep tape cartridges away from x-ray equipment.

3.1.2.5 Inserting a Tape Cartridge
Before you use the tape drive, make sure the system is turned on. During
power-up, the TF85 drive runs self-tests that last a few seconds. All
four indicator lights come on momentarily, then the yellow (Tape in Use)
indicator blinks during the self-tests. At the end of the tests, the yellow
indicator goes off and the green (Operate Handle) indicator comes on,
accompanied by a short beep. The green indicator and the beep indicate
that you can move the cartridge release handle.
CAUTION: Move the handle only when the green indicator light is on.
Moving the handle while the yellow indicator light is on could damage the
drive. If all four indicators blink rapidly at any time, a fault condition exists.
Press the Unload button once. If the fault is cleared, the tape unloads. The

3–12 VAX 4000 Model 300 Operation

yellow indicator blinks during unloading, then the green indicator comes
on. If the fault is not cleared, the four indicators continue to flash. Do not
attempt to use the tape drive or to remove the tape cartridge. Call your
Digital service representative.
Use the following procedure to insert a tape cartridge (see Figure 3–6):
1. Pull the handle open.
2. Position the cartridge so the arrow on the cartridge faces left and points
toward the drive. Insert the cartridge into the tape drive until you feel
the cartridge lock into place.
3. Push the handle closed.
The green indicator goes off and the yellow indicator blinks as the tape
loads. When the yellow indicator glows steadily, the tape is ready to
use.
NOTE: If the green indicator blinks rapidly when you push the handle
closed, the drive has detected a cartridge fault. Pull the handle open
and remove the cartridge. Use another cartridge.
Refer to Appendix C for instructions on how to create backup files on a tape
cartridge.
NOTE: If a cartridge is new, the drive performs a calibration sequence
that takes approximately 30 seconds when the drive receives the first
command from the operating system. The yellow indicator blinks rapidly
and irregularly during calibration.

Operating the System Options

3–13

Green Indicator Is On

Use
Cle
an
Tap ing
e

Figure 3–6: Inserting a Tape Cartridge

Use
Cle
an
Tap ing
e

Handle

Use
Cle
an
Tap ing
e

Cartridge Arrow
Is Facing Left

Yellow Indicator Blinks

MLO-006544

3–14 VAX 4000 Model 300 Operation

3.1.2.6 Removing a Tape Cartridge
You must unload a tape before you can remove the cartridge from the tape
drive. Use the following procedure (see Figure 3–7):
1. Press the Unload button. You can also issue a software command to
unload the cartridge. Refer to your system software manuals for the
appropriate command.
The yellow (Tape in Use) indicator blinks slowly, as the tape rewinds
and unloads into the cartridge. This may take up to 90 seconds.
2. When the yellow indicator goes off and the green (Operate Handle)
indicator comes on (you also hear a beep), pull the handle open.
CAUTION: Move the handle only when the yellow indicator is off and
the green indicator is on. Moving the handle while the yellow indicator
is blinking could damage the drive.
3. Remove the tape cartridge and store it in its container.
4. Push the handle closed.
The green indicator light remains on, indicating that there is power to the
drive and that you can safely move the handle.
CAUTION: Remove the tape cartridge from the tape drive when the cartridge
is not in use or before you turn off the system. Failure to remove the cartridge
may damage the tape cartridge.

Operating the System Options

3–15

Use
Cle
an
Tap ing
e

Figure 3–7: Removing a Tape Cartridge

Use
Cle
an
Tap ing
e

Unload Button
Yellow Indicator Blinks

Green Indicator Is On

Use
Cle
an
Tap ing
e

Handle

Use
Cle
an
Tap ing
e

Cartridge Arrow Is Facing Left

Green Indicator Is On

MLO-006545

3–16 VAX 4000 Model 300 Operation

3.1.2.7 Summary of TF85 Tape Drive Controls and Indicators
Table 3–3 summarizes the TF85 tape drive controls. Table 3–4 describes
the meaning of the indicators.

Table 3–3: TF85 Tape Drive Controls
Control

Position

Function

Handle

Open

Lets you insert or remove a tape after rewind and
unload operations are completed.

Closed

Locks tape in operating position and begins load
sequence.

Unload button

Momentary
contact switch

Rewinds and unloads the tape.

Bus node ID plug

Installed

The bus node ID plug identifies the bus node ID
number of the drive to the system and is, by default,
the unit number. The bus node ID is factory set to
a number 0 through 6. Refer to Section 3.1.1.2 for
instruction on changing bus node ID plugs.

Not Installed

The drive bus node number is undefined. All four
indicators light indicating a fault condition.

Table 3–4: TF85 Tape Drive Indicators
Write
Protected

Use CleanTape in Use ing Tape

Open
Handle

Condition

Off

No power to the tape drive.

Off

On steadily

Safe to move cartridge release
handle. Power is present.

Off

Blinking

Load fault. The cartridge
leader may be defective. Pull
out the handle and remove
the cartridge. Do not use the
cartridge.

On/Off

On steadily

Off

Tape is loaded but not in
motion.

On/Off

Blinking

Off

Tape is in motion.

On steadily/
blinking

Off

Cartridge is write protected.

Off

Drive needs cleaning with
CleaningTape III cartridge.

Operating the System Options

3–17

Table 3–4 (Cont.): TF85 Tape Drive Indicators
Write
Protected

Use CleanTape in Use ing Tape

Open
Handle

Blinking

Condition
A fault is occurring. Press
the Unload button to unload
the tape cartridge. If the
fault is cleared, the yellow
indicator blinks while the
tape rewinds.
When the
green indicator comes on,
you can move the handle
to remove the cartridge. If
the fault is not cleared,
all four lights continue to
blink. Do not attempt to
remove the tape cartridge.
Call your Digital service
representative.

3.1.2.8 Cleaning the TF85 Tape
When the Use Cleaning Tape indicator lights, load a CleaningTape III
cartridge to clean the drive. Load the cleaning cartridge as you load a
tape cartridge. When the cleaning is finished, the beeper sounds to unload
the cleaning cartridge.
The CleaningTape III cartridge is good for 20 to 24 cleanings. If the cleaning
cartridge expires, the Use Cleaning Tape indicator remains on.
NOTE: If the Use Cleaning Tape indicator is not lit, the cleaning cartridge
will not load.

3.1.3 TK70 Tape Drive
The TK70 tape drive is located behind the upper door of the system. To use
the drive, move the key to the top position and open the door.
The TK70 tape drive holds one removable magnetic tape cartridge. The
drive can read data written on either a CompacTape II or CompacTape
cartridge. You can identify the type of cartridge by the label on the
cartridge.
You can use a CompacTape II or CompacTape cartridge as an input device
to load software or data into your system. The TK70 drive can read data
on both types of cartridges, written by either a TK70 drive or a TK50 drive.
(The TK50 drive records data in a format different from that of the TK70.)

3–18 VAX 4000 Model 300 Operation

You should use a CompacTape II as an output device to make copies or
backups of software or data. The TK70 drive cannot write to a CompacTape
II or CompacTape that has been previously written by a TK50 tape drive.
TK70 Tape Drive Controls
The tape drive has two primary controls: the cartridge insert/release handle
(subsequently referred to as the ‘‘handle’’) and the Unload button. You use
the handle to insert or remove cartridges and lock them into position. Pull
the handle open to insert or remove a tape cartridge. Push the handle
closed to lock a tape cartridge into position and load the tape.
You use the Unload button to rewind and unload the tape. Rewinding and
unloading can also be controlled by software. Refer to your system software
manuals for appropriate commands.
The drive also has three indicator lights that show the status of the drive.
•

Orange light (Write-Protected):
cartridge is write protected.

A steady orange light shows the

•

Yellow light (Tape in Use): A steady yellow light shows the tape is
loaded. A blinking yellow light shows the tape is in motion.

•

Green light (Operate Handle): A steady green light shows you can move
the handle to insert or remove a tape. A blinking green light shows a
cartridge load fault. You can also move the handle when the green light
is blinking.

All three lights blinking simultaneously indicate a fault condition.
Figure 3–8 shows the TK70 tape drive with the controls and indicator lights
labeled.
To operate the drive properly, you must carefully monitor the indicator
lights. The instructions for inserting and removing cartridges, which
appear later in this section, tell you what should happen at each step. A
table at the end of the section summarizes light and control combinations.

Operating the System Options

3–19

Wr
Pr ite
ote
cte
d

Figure 3–8: TK70 Tape Drive

Orange Light
Yellow Light
Green Light
Unload Button

Handle

MLO-002292

3.1.3.1 Design of the Drive
The TK70 tape drive operates like a reel-to-reel tape deck. Inside the drive
is a take-up reel with a leader attached. Inside the cartridge is a single
reel containing the magnetic tape. When you insert the cartridge and push
in the handle, the leader in the drive automatically couples with the leader
in the cartridge, and the tape winds onto the take-up reel. The coupling
and winding process is called loading. When the automatic loading process
is complete, the tape is ready to use.
Once the cartridge is loaded, you cannot remove it without rewinding and
uncoupling the leaders, a process called unloading. Even if you have not
used the tape, you must unload it before you can remove the cartridge.
When you press the Unload button, the tape rewinds into the cartridge
and the leaders uncouple.

3–20 VAX 4000 Model 300 Operation

3.1.3.2 Labeling a Tape Cartridge
When recording data on a cartridge, label its contents.
For your
convenience, a slot for the label is provided on the front of the cartridge.
Write the identification on the label and insert the label in the slot on the
front of the cartridge, as shown in Figure 3–9. The label is visible when
the tape is in the drive.
Figure 3–9: Labeling a Tape Cartridge

Label Slot

MLO-000960

To indicate that the tape was recorded on a TK70 tape drive, check the box
labeled 296MB. The 95MB box is used for tapes recorded on a TK50 drive.
NOTE: Do not write on the tape cartridge or attach labels to the top, bottom,
or sides of the cartridge.

Operating the System Options

3–21

3.1.3.3 Write-Protecting a Tape Cartridge
Write-protecting a tape cartridge prevents accidental erasure of information
stored on the tape. You can write-protect a tape cartridge in two ways:
•

Set the write-protect switch on the cartridge to the write-protect
position.

•

Write-protect the cartridge by using operating system commands
described in your system software manuals.

Your system can read information on the tape regardless of the position of
the write-protect switch or whether writing is software-disabled. However,
the system cannot write data to the tape when the write-protect switch is
set to the write-protect position, or when writing is software disabled.
When you use a cartridge to install software, make sure the cartridge is
write-protected. Two icons on the switch indicate the write-protect status,
as shown in Figure 3–10. An orange rectangle is visible when the switch
is in the write-protect position. If you do not see an orange rectangle, slide
the switch toward the label slot.
When you insert a write-protected cartridge into the drive, the orange
indicator light comes on. The system recognizes the tape as being writeprotected under any one of the following conditions:
•

The write-protect switch on the cartridge is set to the write-protect
position.

•

An operating system command has write-protected the tape.

•

A tape recorded on a TK50 tape drive is inserted into the drive.

Removing write-protection depends on how the tape was recorded and
how it is write protected. You cannot write-enable a tape recorded on a
TK50 tape drive either by moving the write-protect switch on the cartridge
or by using software commands. The TK70 drive always recognizes a
tape recorded on a TK50 drive as write-protected. You can remove writeprotection on tapes recorded on a TK70 drive as follows:
•

If the cartridge is write protected only by the write-protect switch on
the cartridge and not the operating system, moving the switch to the
write-enabled position causes the orange light to go out at the end of
the executing command.

3–22 VAX 4000 Model 300 Operation

Figure 3–10: Tape Cartridge Write-Protect Switch

WriteProtected

Not WriteProtected

MLO-000961

•

If the cartridge is write protected only by a software command and
not the write-protect switch, removing the operating system restriction
causes the orange light to go out.

•

If the cartridge is write protected by both the switch on the cartridge
and a software command, you must change the switch setting and
remove the operating system restriction.

Operating the System Options

3–23

When you use a CompacTape II cartridge to make a backup copy of files,
make sure the orange write-protect light on the TK70 drive is off. If the
light is not off, check for any of the write-protect conditions described above.
Change the switch setting and/or operating system restriction as necessary.
Do not begin your operation until the orange light goes off.
3.1.3.4 Tape Cartridge Handling and Storage Guidelines
•

Do not touch the exposed surface of the tape.

•

Do not drop the tape cartridge. The impact from a fall can damage the
tape cartridge.

•

Allow new tapes to stabilize at room temperature for 24 hours before
using them.

•

Place an identification label only in the label slot on the front of the
tape cartridge.

•

Store tape cartridges in a dust-free environment.

•

Keep tape cartridges away from direct sunlight, heaters, and other
sources of heat. Store tape cartridges in a stable temperature between
10° and 40°C (50° and 104°F).

•

Store tape cartridges where the relative humidity is between 20 and 80
percent.

•

Keep tape cartridges away from magnets and equipment that generate
magnetic fields, such as motors, transformers, terminals, and audio
equipment.

•

Keep tape cartridges away from x-ray equipment.

3.1.3.5 Inserting a Tape Cartridge
Before you use the tape drive, make sure the system is turned on. During
power-up, the TK70 drive runs self-tests that last a few seconds. All three
lights (orange, yellow, and green) come on momentarily, then the yellow
(Tape in Use) light blinks during the self-tests. At the end of the tests,
the yellow light goes off and the green (Operate Handle) light comes on,
accompanied by a short beep. The green light and the beep indicate that
you can move the cartridge release handle.
CAUTION: Move the handle only when the green indicator light is on.
Moving the handle while the yellow light is on could damage the drive.
If all three lights blink rapidly at any time, a fault condition exists. Press
the Unload button once. If the fault is cleared, the tape unloads. The yellow
light blinks during unloading, then the green light comes on. If the fault

3–24 VAX 4000 Model 300 Operation

is not cleared, the three lights continue to flash. Do not attempt to use
the tape drive or to remove the tape cartridge. Call your Digital service
representative.
Use the following procedure to insert a tape cartridge (see Figure 3–11):
1. Pull the handle open.
2. Position the cartridge so the arrow on the cartridge faces left and points
toward the drive. Insert the cartridge into the TK70 tape drive until
you feel the cartridge lock into place.
3. Push the handle closed.
The green light goes off and the yellow light blinks as the tape loads.
When the yellow light glows steadily, the tape is ready to use.
NOTE: If the green light blinks rapidly when you push the handle
closed, the drive has detected a cartridge fault. Pull the handle open
and remove the cartridge. Use another cartridge.
Refer to Appendix C for instructions on how to create backup files on a tape
cartridge.
NOTE: If a cartridge is new, the drive performs a calibration sequence that
takes approximately 30 seconds when the drive receives the first command
from the operating system. The yellow light blinks rapidly and irregularly
during calibration.

Operating the System Options

3–25

Figure 3–11: Inserting a Tape Cartridge

1
Green Light Is On

Handle

Cartridge Arrow
Is Facing Left

3
Yellow Light Blinks

MLO-002459

3–26 VAX 4000 Model 300 Operation

3.1.3.6 Removing a Tape Cartridge
You must unload a tape before you can remove the cartridge from the tape
drive. Use the following procedure (see Figure 3–12):
1. Press the Unload button. You can also issue a software command to
unload the cartridge. Refer to your system software manuals for the
appropriate command.
The yellow (Tape in Use) light blinks slowly, as the tape rewinds and
unloads into the cartridge. This may take up to 90 seconds.
2. When the yellow light goes off and the green (Operate Handle) light
comes on (you also hear a beep), pull the handle open.
CAUTION: Move the handle only when the yellow indicator light is off
and the green indicator light is on. Moving the handle while the yellow
light is blinking could damage the drive.
3. Remove the tape cartridge and store it in its container.
4. Push the handle closed.
The green light remains on, indicating that there is power to the drive and
that you can safely move the handle.
CAUTION: Remove the tape cartridge from the tape drive when the cartridge
is not in use or before you turn off the system. Failure to remove the cartridge
may damage the tape cartridge.

Operating the System Options

3–27

Figure 3–12: Removing a Tape Cartridge

1
Unload Button
Yellow Light Blinks

2
Green Light Is On

Handle

Cartridge Arrow Is Facing Left

Green Light Is On

MLO-002460

3–28 VAX 4000 Model 300 Operation

3.1.3.7 Summary of TK70 Tape Drive Controls and Indicator Lights
Table 3–5 summarizes the TK70 tape drive controls. Table 3–6 describes
the meaning of the indicator lights.

Table 3–5: TK70 Tape Drive Controls
Control

Position

Function

Handle

Open

Lets you insert or remove a tape after rewind and
unload operations are completed.

Closed

Locks tape in operating position and begins load
sequence.

Momentary
contact switch

Rewinds and unloads the tape.

Unload button

Table 3–6: TK70 Tape Drive Indicator Lights
Orange

Yellow

Green

Condition

Off

No power to the tape drive.

Off

On steadily

Safe to move cartridge release
handle. Power is present.

Off

Blinking

Load fault. The cartridge leader
may be defective. Pull out the
handle and remove the cartridge.
Do not use the cartridge.

On/Off

On steadily

Off

Tape is loaded but not in motion.

On/Off

Blinking

Off

Tape is in motion.

On steadily/
blinking

Off

Cartridge is write protected.

Blinking

A fault is occurring. Press the
Unload button to unload the tape
cartridge. If the fault is cleared,
the yellow light blinks while the
tape rewinds. When the green light
comes on, you can move the handle
to remove the cartridge. If the
fault is not cleared, all three lights
continue to blink. Do not attempt
to remove the tape cartridge. Call
your Digital service representative.

Operating the System Options

3–29

3.1.4 TLZ04 Tape Drive
The TLZ04 tape drive is located behind the upper door of the system. To
use the drive, move the key to the top position and open the door.
The TLZ04 tape drive is a backup device that uses digital data storage
(DDS) and digital audio tape (DAT) recording technologies. Digital audio
tape, such as TLZ04 cassettes, takes advantage of the TLZ04 tape drive’s
helical scan technology. This technology allows more data to be stored
on tape by recording data diagonally. DAT recording also minimizes
‘‘crosstalk,’’ providing you with higher data integrity.
Digital data storage uses a recording format that supports the use of digital
audio tape for computer applications. The DDS/DAT format allows you to
backup 1.2 gigabytes of data in approximately 2 hours with no operator
intervention. In addition, this format has three levels of error correction,
which ensures high data integrity.

3–30 VAX 4000 Model 300 Operation

TLZ04 Tape Drive Controls and Indicators
Figure 3–13 shows the TLZ04 tape drive.
Figure 3–13: TLZ04 Tape Drive

Unload
Button

Drive Indicator

Tape Indicator

Bus Node
ID Plug
0
MLO-005538

The Unload button is used to eject the cassette tape. The Tape and Drive
indicators show the status of the TLZ04 and can indicate possible error
conditions.
CAUTION: Pressing the Unload button during normal tape operations may
halt the tape operation in progress.
Table 3–7 describes the TLZ04 drive indicators as they apply to normal
operating conditions. Table 3–8 describes the TLZ04 drive indicators as
they apply to abnormal operating conditions.

Operating the System Options

3–31

Table 3–7: TLZ04 Drive Indicators (Normal Conditions)
Indicator

Color(s)

Tape

Meaning
Indicates status of cassette tape as follows.

Solid green

Tape loaded.

Solid yellow

Tape loaded and write protected.

Drive

Indicates status of TLZ04 drive as follows.
Solid green

Drive ready/power on.

Flashing green

Drive active.

Flashing yellow

Power-up self-test in progress.

Table 3–8: TLZ04 Drive Indicators (Abnormal Conditions)
Indicator

Color(s)

Meaning

Tape

Slow flashing
green or yellow

Excessive tape errors. Use the head cleaning cassette.
If failure repeats itself, use another cassette tape.

Tape

Flashing yellow
1-3 times

Power-up self-test failed.

Drive

Solid yellow

Power-up self-test failed.

Drive and Tape

Solid yellow

High humidity. Adjust operating environment.

3.1.4.1 Proper Handling of Cassette Tapes
Digital Equipment Corporation recommends that you use TLZ04 cassette
tapes. To ensure optimal performance from your cassette tapes, observe
the following guidelines when handling them.
•

Avoid placing the cassette tapes near sources of electromagnetic
interference, such as terminals, and video or X-ray equipment.
Emissions from such equipment can erase data on the tape.

•

Keep cassette tapes out of direct sunlight and away from heaters and
other sources of heat.

•

Store cassette tapes (and cleaning cassette) where the room
temperatures are between 5°C and 32°C (40°F and 90°F).

•

Store cassette tapes in a dust-free environment where the relative
humidity is 20% to 60%.

3–32 VAX 4000 Model 300 Operation

3.1.4.2 Setting the Write-Protect Tab on the Cassette Tape
If you wish to read or copy from a tape, set the write-protect tab on the
cassette to write protect. This disables writing to tape, and ensures data
integrity. Use a pen (not pencil) to set the write-protect tab (Figure 3–14)
to the desired position.
Observe the following guidelines when setting the write-protect tab.
•

If you are reading data (copying from tape), set the write-protect tab to
write protected.

•

If you are writing data, set the write-protect tab to write enabled.

•

Write-protect tab position displays in front panel tape indicator.

Operating the System Options

3–33

Figure 3–14: Setting the Write-Protect Tab on the Cassette Tape

WriteProtected

D
D ig
S at ita
to a l
ra
g
e

Not WriteProtected

MLO-005329

3.1.4.3 Inserting a Cassette Tape into the Drive
Insert the TLZ04 cassette tape into the drive with the cassette’s writeprotect tab at the top, as shown in Figure 3–15.

3–34 VAX 4000 Model 300 Operation

Digital
Data
Storage

Figure 3–15: Inserting a Cassette Tape into the Drive

This fig. was rotated with QA trilb

MLO-005331

3.1.4.4 System Software
System software allows you to execute commands to read and write data to
the cassette tape. Your operating system documentation describes specific
commands that allow you to do the following:
•

Back up data from disk drives to a tape drive

•

Copy data from disk to tape, or tape to disk

Operating the System Options

3–35

3.1.4.5 Cleaning the Heads
Statistics show that over ninety percent of drive-related problems are
associated with the media. Therefore, Digital Equipment Corporation
strongly recommends that you follow the instructions for handling cassette
tapes and cleaning the heads of the drive.
This section shows you how to perform TLZ04 head cleaning. The heads
are the components, in a drive, that magnetically read and write data to
and from the media (in this case, a cassette tape).
NOTE: Digital Equipment Corporation recommends that you perform the
head cleaning procedure about every two weeks, or after every 25 hours of
drive usage.
Under normal conditions, it should not be necessary to exceed this cleaning
schedule. If a particular cassette causes problems, try changing to another
cassette.
CAUTION: Never attempt to clean the heads in a manner other than
described herein. Doing so will void the product warranty.
To clean the heads, use the head cleaning cassette as follows:
1. Observe that the drive indicator is lit solid green.
2. Insert the head cleaning cassette (part number TLZ04–HA) into the
drive as shown in Figure 3–16.
3. With the head cleaning cassette inserted, the drive automatically
cleans the head. The drive ejects the head cleaning cassette after
approximately 30 seconds.
4. In the space provided on the card enclosed with the head cleaning
cassette, place a check mark every time you use the head cleaning
cassette.
Under normal conditions, the head cleaning cassette performs for
approximately 25 cleanings. Additional cassettes are available from
your Digital sales representative or DECdirect.
If the head cleaning cassette has been used more times than it was
designed to be used, the drive will eject the cartridge in approximately
8 to 10 seconds. No cleaning action will occur.
CAUTION: Do not exceed the recommended 25 uses of the cleaning
cassette. After 25 uses, the cleaning cassette no longer cleans the heads.
You must use a new cassette.

3–36 VAX 4000 Model 300 Operation

Cassette Cleaner

Digital
Head
Cleaner

Figure 3–16: Inserting the Head Cleaning Cassette

This fig. was rotated with QA trilb

MLO-005332

3.1.5 RV20 Optical Disk Subsystem
If your system includes an RV20 Optical Disk Subsystem, refer to the RV20
Optical Disk Subsystem Owner’s Manual for instructions on how to operate
the device.

Operating the System Options

3–37

3.1.6 RRD40-Series Compact Disc Drive Subsystem
If your system includes an RRD40-series Compact Disc Drive Subsystem,
refer to its user’s guide for instructions on operating the device.

3.1.7 TSV05 Tape Drive
If your system includes a TSV05 tape drive, refer to the TSV05 Tape
Transport System User’s Guide for instructions on how to operate the device.
NOTE: The TSV05 is a data interchange device and is not supported as a
backup device.

3.1.8 TSZ07 Tape Drive
If your system includes a TSZ07 tape drive, refer to the TSZ07 subsystem
user’s guide for instructions on how to operate the device.

3.1.9 TU81E Tape Drive
If your system includes a TU81E tape drive, refer to the TU81–Plus Tape
Subsystem User’s Guide for instructions on how to operate the device.

3.2 Communications Controller Options
The following types of communications controllers are available for the VAX
4000 systems:
•

Asynchronous serial controllers (with or without modem support)

•

Synchronous serial controllers (with or without modem support)

•

Network controllers

3.2.1 Asynchronous Serial Controllers
The following asynchronous controllers are available for your VAX 4000
system, with and without modem support:
•

CXA16—16-line multiplexer, Q-bus controller

•

CXB16—16-line multiplexer

•

CXY08—8-line multiplexer with modem control, Q-bus controller

•

DFA01—2-line controller with integral modems, Q-bus controller

•

DSRVB—8-line terminal server, Ethernet device

3–38 VAX 4000 Model 300 Operation

3.2.1.1 Asynchronous Controllers Without Modem Support
Before using any peripheral device connected to a serial communications
controller, check the following:
•

Make sure the peripheral device is properly connected to the system.

•

Make sure the peripheral device is properly installed, plugged into an
appropriate power source, and turned on.

•

Make sure the peripheral device is properly set up. Set-up involves
choosing how the device operates. Some set-up choices are matters of
personal choice, for example, the number of columns that display on
a terminal screen. Others, like baud rate (a measure of the speed at
which data is transmitted over a data line), must match the system
setting if the peripheral device and system are to communicate. Refer
to your terminal or printer manual for complete set-up instructions.
Generally, the default settings for your terminal are acceptable.
While most default settings are acceptable, you should perform the setup procedure for your terminal to ensure appropriate set-up values.
The two examples below provide set-up instructions for VT300-series
and VT400-series terminals:
For VT300- and VT400-Series Terminals:
1. Press Set-Up to display the Set-Up Directory screen.
2. Use the arrow keys to select the Communications Set-Up option
and press Enter .
3. Make sure the Transmit Speed option in the Current Setting column
is set to 9600. Use the left and right arrow keys to change the
setting.
4. Make sure the Receive Speed option in the Current Setting column
is set to receive=transmit. Use the down arrow to move the cursor
to this option, and the left and right arrows to change the setting.
5. Press Select to return to the Set-Up Directory screen.
6. Use the arrow keys to select the Global Set-Up option and press
Enter .
7. Select the option Comm Port.
8. If the port in the Current Setting column is selected for RS–232,
press Enter to select the DEC–423 port.
9. Press Select to return to the Set-Up Directory screen.

Operating the System Options

3–39

10. Use the arrow keys to select the Save Current Settings option.
Press Enter to save all current settings; then press Set-Up to exit the
Set-Up Directory.
Your operating system may have other requirements for using serial
communications devices. Refer to your system software manual.
3.2.1.2 Asynchronous Controllers With Modem Support
Using serial devices with modem support requires that you install two
modems: one connected to the system and one connected to the remote
terminal. Both must be connected to phone lines.
Before using modems with your system, check the following:
1. Make sure each modem is connected to the system.
2. Make sure the modem is properly installed and connected to a phone
jack.
3. Set controls on the modem according to instructions in the modem user’s
guide.
Before using the modem connected to the remote terminal, check the
following:
1. Make sure the modem is properly installed and connected to a phone
jack.
2. Set controls on the modem according to instructions in the modem user’s
guide.
3. Check the settings on the terminal attached to the modem. Depending
on the type of modem and the type of lines used, the baud rate may
be 300, 1200, or 2400. Other settings should be the same as those
described in the previous section.
Before using a phone line with modem support, you must set certain
parameters such as line speed. See your system software manuals for
details.

3.2.2 Synchronous Controllers
The following synchronous controllers are available for your VAX 4000
system:
•

DIV32—DEC Integrated Services Digital Network (ISDN) controller

•

DPV11—Single-line programmable controller

•

DSV11—Dual-line controller

3–40 VAX 4000 Model 300 Operation

•

KMV1A—Programmable communications interface, Q-bus controller

Before using a synchronous controller you must verify the following:
•

The system you want to communicate with has an appropriate
synchronous controller.
Synchronous communications require a
synchronous controller on both the transmitting and receiving system.

•

Both the transmitting and receiving systems must have supporting host
software installed. Synchronous communications operate under specific
protocols that define how data is interpreted. Two common protocols
are X.25 and PSI. Appropriate host software is required to interpret
the protocol.

3.2.3 Network Controllers
NOTE: VAX 4000 systems contain an Ethernet controller embedded in the
CPU module. You can have a second optional Ethernet controller, the
DESQA module, included with your system.
Before using a network controller you must do the following:
1. Make sure the Ethernet cable (either standard transceiver cable or
ThinWire cable) is connected to the console module (or optional DESQA
module). The light next to the connector should be lit, indicating an
active connection. If not lit, move the Ethernet Connector switch to the
proper position.

Operating the System Options

3–41

2. Make sure the Ethernet cable is properly connected to the network. A
transceiver cable can be connected in one of the following ways:
•

To an H4000 or H4005 transceiver located on a traditional Ethernet

•

To a local network interconnect (DELNI), which can be connected
to a larger Ethernet or can serve to connect up to eight systems in
a local area network

A ThinWire cable can be connected as follows:
•

To a ThinWire Ethernet multiport repeater (DEMPR) or ThinWire
single port repeater (DESPR), which can be connected to a larger
Ethernet or can serve to connect many systems in a local area
network

•

To an available connection on a T-connector of other ThinWire nodes

3. Have the DECnet application installed on your system.
4. Register your node with the network manager so that your node is
recognized by other systems in the network.
Some software products, for example, Ethernet-based VAXcluster systems,
use the Ethernet hardware address of other systems to operate properly.
To find the hardware address of your Ethernet device, use the command
SHOW ETHER from console mode. The hardware address of your Ethernet
device displays on the terminal as shown in the following example:
>>>SHOW ETHERNET
EZA0 (08-00-2B-03-50-5C)

Refer to your software manuals and DECnet manuals for other
requirements and further instructions on using a network connection.

3.3 Real-Time Options
The following real-time options are available for your VAX 4000 system:
•

DRQ3B—High-speed interface with two unidirectional 16-bit data
channels

•

DRV1W—General purpose interface with one 16-bit input port, one 16bit output port

•

IEQ11—DMA controller that connects a Q-bus to two independent
busses

•

IBQ01—DMA controller that connects a Q-bus to RS–485 control

3–42 VAX 4000 Model 300 Operation

•

AAV11–S—Digital-to-analog converter with DMA capability

•

ADV11–S—Analog-to-digital converter with DMA capability

•

KWV11–S—Programmable clock that can count from one to five
frequencies

•

AXV11—Input/output circuit board for analog devices

•

ADQ32—Analog-to-digital converter with DMA capability

Before using a real-time controller, make sure the devices connected to the
controller are properly set up. Refer to the documentation for the real-time
device.

3.4 Printer Options
Before using a printer, make sure it is properly set up and passes any selftests. Verify that the printer is connected to an appropriate controller.
Some printers, such as the LG01 and LG02, require the LPV11–SA
interface. Other printers require modem control signals. Consult your
printer documentation for the interface requirements.
The VAX 4000 systems have several printer options available. Consult
your Digital sales representative for a list of printers and printer interface
requirements.

3.5 Adding Options
If you have available Q-bus slots, you may be able to add modules to your
system. Possible limitations to adding modules include the following:
•

Power limitations

•

Physical space limitations

•

Bus limitations (ac/dc loading)

Your Digital sales representative can advise you about modules available for
your system and what you need to order. A Digital service representative
should perform the installation, since the system must be properly
configured to work correctly.
CAUTION: Do not attempt to remove, rearrange, or install modules. Contact
your Digital service representative for assistance.

Operating the System Options

3–43

Appendix A

Related Documentation

A–1

Appendix B

Programming Parameters for DSSI
Devices
This appendix describes the console mode procedures for setting and
examining parameters for DSSI devices.
NOTE: Before you reprogram DSSI devices, you should have a good
understanding of DSSI architecture and VAXcluster software operation. If
you do not have that understanding, you should read the VMS manuals
listed in Appendix A or call your Digital service representative.
Two types of DSSI storage adapters are available for VAX 4000 systems:
an embedded DSSI host adapter, which is part of the CPU, and the
KFQSA storage adapter. The KA670 CPU has two embedded DSSI storage
adapters: bus 0 and bus 1.
Each storage adapter provides a separate DSSI bus that can support up to
seven DSSI devices (six DSSI devices for a dual-host configuration). The
adapters make a connection between the CPU and the requested device
on their respective DSSI bus. Each DSSI device has its own controller
and server that contain the intelligence and logic necessary to control data
transfers over the DSSI bus.

B.1 DSSI Device Parameters
Six principal parameters are associated with each DSSI device:
•

Bus Node ID

•

ALLCLASS

•

UNITNUM

•

FORCEUNI

•

NODENAME

•

SYSTEMID

Programming Parameters for DSSI Devices

B–1

NOTE: Each of the above parameters, with the exception of the Bus Node
ID, are programmed and examined using the console-based Diagnostic
and Utility Program (DUP) driver utility. The Bus Node ID is physically
determined by the numbered bus node ID plug that inserts into the device’s
front panel.
A brief description of each parameter follows:
The Bus Node ID parameter is provided by the bus node ID plug on the
device’s front panel. Each DSSI bus can support up to eight nodes, 0–7.
Each DSSI adapter and each device count as a node. Hence, a DSSI bus
can support up to seven devices, bus nodes 0–6 (with node 7 reserved for
the storage adapter); in a dual-host configuration up to six devices, 0–5
(with nodes 6 and 7 reserved for the storage adapters). Refer to Chapter 3
for instructions on changing bus node ID plugs.
The ALLCLASS parameter determines the device allocation class. The
allocation class is a numeric value from 0 to 255 that is used by the VMS
operating system to derive a path-independent name for multiple access
paths to the same device. The ALLCLASS firmware parameter corresponds
to the VMS SYSGEN parameter ALLOCLASS.
DSSI devices are shipped from the factory with a default allocation class of
zero. Each device to be served to a cluster should have a nonzero allocation
class that matches the allocation class of the system. Refer to the VMS
VAXcluster manual for rules for specifying allocation class values.
The UNITNUM parameter determines the unit number of the device. By
default, the device unit number is supplied by the bus node ID plug on
the device’s front panel. Systems with multiple DSSI busses, as described
later in this section, require that the default values be replaced with unique
unit numbers. To set unit numbers and override the default values, you
use the console-based DUP driver utility to supply values to the UNITNUM
parameter and to set a value of zero to device parameter FORCEUNI.
The FORCEUNI parameter controls the use of UNITNUM to override the
default device unit number supplied by the bus node ID plug. When
FORCEUNI is set to a value of zero, the operating system uses the value
assigned to the UNITNUM parameter; when FORCEUNI is set to a value
of one, the operating system uses the value supplied by the bus node ID
plug.
The NODENAME parameter allows each device to have an alphanumeric
node name of up to eight characters. DSSI devices are shipped from the
factory with a unique identifier, such as R7CZZC, R7ALUC, and so on. You
can provide your own node name.

B–2 VAX 4000 Model 300 Operation

The SYSTEMID parameter provides a number that uniquely identifies the
device to the operating system. This parameter may need to be modified
only when replacing a device. Only Customer Services representatives and
qualified self-maintenance customers can remove devices.

B.2 How VMS Uses the DSSI Device Parameters
This section describes how the operating system uses the parameters to
form unique identifiers for each device. Configurations that require you to
assign new unit numbers for devices are also described.
With an allocation class of zero, the operating system can use the default
parameter values to provide each device with a unique device name. The
operating system uses the node name along with the device logical name
in the following manner:
NODENAME$DIAu
where:
NODENAME is a unique node name and u is the unit number.
With a nonzero allocation class, the operating system relies on unit number
values to create a unique device name. The operating system uses the
allocation class along with the device logical name in the following manner:
$ALLCLASS$DIAu
where:
ALLCLASS is the allocation class for the system and devices, and u is a
unique unit number.
Using mass storage expanders, you can fill multiple DSSI busses: busses 0
and 1 supplied by the KA670 CPU, and a third and fourth DSSI bus using
the KFQSA storage adapter. Each bus can have up to seven DSSI devices
(bus nodes 0–6). When more than one bus is being used, and your system is
using a nonzero allocation class, you need to assign new unit numbers for
devices on all but one of the DSSI busses, as the unit numbers for all DSSI
devices connected to a system’s associated DSSI busses must be unique.
Figure B–1 illustrates the need to program unit numbers for a system using
more than one DSSI bus and a nonzero allocation class. In the case of the
nonzero allocation class, the operating system sees three of the ISEs as
having duplicate device names, which is an error, as all unit numbers must
be unique.

Programming Parameters for DSSI Devices

B–3

Figure B–1: VMS Operating System Requires Unique Unit Numbers for
DSSI Devices

Allocation Class=0

Nonzero Allocation Class
(Example: ALLCLASS=1)

TFDR1$MIA0

$1$MIA0

R7CZZC$DIA1

$1$DIA1

R7ALUC$DIA2

$1$DIA2

R7EB3C$DIA3
R7IDFC$DIA0
R7IBZC$DIA1

* Duplicate 1
* Duplicate 2

$1$DIA3

* Duplicate 3

$1$DIA0
$1$DIA1

R7IKJC$DIA2

$1$DIA2

R7ID3C$DIA3

$1$DIA3

R7XA4C$DIA4

$1$DIA4

R7QIYC$DIA5

$1$DIA5

R7DA4C$DIA6

$1$DIA6

* Nonzero allocation class examples with an asterisk indicate duplicate device names.

For one of the DSSI busses, the unit numbers need to be reprogrammed to avoid this error.
MLO-006547

NOTE: Digital recommends that you configure your systems to have unique
unit numbers even if you have a standalone system using an allocation class
of zero. This practice will avoid problems with duplicate device names if you
later decide to form a cluster.

B.3 Examining and Setting DSSI Device Parameters
The following instructions describe how to change DSSI parameters, using
the DUP driver utility. In the example procedures, the allocation class will
be set to 2, the devices for bus 0 (in the VAX 4000) will be assigned new
unit numbers (to avoid the problem of duplicate unit numbers), and the
system disk will be assigned a new node name.

B–4 VAX 4000 Model 300 Operation

Figure B–2 shows sample DSSI busses and bus node IDs for an expanded
VAX 4000 Model 300 system.
NOTE: Your system need not have the maximum number of devices, as do
the examples in this appendix.
Figure B–2: Sample DSSI Busses for an Expanded VAX 4000 Model 300
System
System

Expander

3 2 1 0

3 2 1 0
6 5 4

Bus 0

DSSI Cable

Bus 1
MLO-006546

1. Enter the console mode.
The procedure for programming parameters for DSSI devices from
console mode requires that you issue commands to those devices at
the console prompt (>>>). You may enter these commands in either
uppercase or lowercase letters. Unless otherwise instructed, enter each
command, then press Return.
Enter console mode as follows:
a. Set the Break Enable/Disable switch on the system console module
to the enable position (up, position 1).

Programming Parameters for DSSI Devices

B–5

b. Set the Power switch for each unit (both hosts for a dual-host
system, and any expanders for expanded systems) to on (1).
Wait for the system to display the console prompt (>>>).
2. To display the DSSI devices on embedded DSSI busses, enter SHOW DSSI
at the console prompt. To display the DSSI devices on KFQSA-based
DSSI busses, enter SHOW UQSSP.
The firmware displays two lines of information for each device. For
embedded DSSI, the firmware displays the following:
•

The first line contains the bus number, node number, and node
name.

•

The second line contains the device name and unit number followed
by the device type in parentheses.

For embedded DSSI, the device name consists of the letters DIAu or
DIBu (MIAu or MIBu for the TF85 tape drive)—devices on bus 0 are
listed as DIA, devices on bus 1 are listed as DIB—and u is a unique unit
number. The embedded DSSI host adapter for each bus is identified by
an asterisk (*).
The embedded DSSI display for Example B–1 shows a system with four
DSSI devices (unit numbers 0–3) and an R400X expander with seven
DSSI devices (unit numbers 0–6).

B–6 VAX 4000 Model 300 Operation

Example B–1: SHOW DSSI Display (Embedded DSSI)
>>>SHOW DSSI
DSSI Bus 0 Node 0 (TFDR1)
-MIA0 (TF85)
DSSI Bus 0 Node 1 (R7ALUC)
-DIA1 (RF31)
DSSI Bus 0 Node 2 (R7EB3C)
-DIA2 (RF31)
DSSI Bus 0 Node 3 (R7EB22)
-DIA3 (RF31)
DSSI Bus 0 Node 6 (*)
DSSI Bus 1 Node 0 (SNEEZY)
-DIB0 (RF31)
DSSI Bus 1 Node 1 (DOPEY)
-DIB1 (RF31)
DSSI Bus 1 Node 2 (SLEEPY)
-DIB2 (RF31)
DSSI Bus 1 Node 3 (GRUMPY)
-DIB3 (RF31)
DSSI Bus 1 Node 4 (BASHFUL)
-DIB4 (RF31)
DSSI Bus 1 Node 5 (HAPPY)
-DIB5 (RF31)
DSSI Bus 1 Node 6 (DOC)
-DIB6 (RF31)
DSSI Bus 1 Node 7 (*)
>>>

For KFQSA-based DSSI, the firmware displays the following:
•

The first line contains the UQSSP disk controller number and device
node name.

•

The second line contains the device name and unit number followed by
the device type in parentheses.

For KFQSA-based DSSI, the device name consists of the letters DUcu,
where c is the controller letter, and u is a unique unit number.

Programming Parameters for DSSI Devices

B–7

Example B–2 shows a sample KFQSA-based DSSI bus.
Example B–2: SHOW UQSSP Display (KFQSA-Based DSSI)
>>>SHOW UQSSP
UQSSP Disk Controller 0 (772150)
-DUA0 (RF31)
UQSSP Disk Controller 1 (760334)
-DUB1 (RF31)
UQSSP Disk Controller 2 (760340)
-DUC2 (RF31)
UQSSP Disk Controller 3 (760322)
-DUD3 (RF31)
UQSSP Tape Controller 0 (774500)
-MUA0 (TK70)

For the examples in this appendix, each device will be assigned an
allocation class of 2, and the system disk will be given a new node name.
Also, devices MIA0, DIA1, DIA2, and DIA3; and DUA0, DUB1, DUC2, and
DUD3 will be assigned new unit numbers.
NOTE: The DUP server examples throughout this appendix are for RF-series
ISEs. The displays for the TF85 tape drive differ slightly from the RF-series
displays.

B.3.1 Entering the DUP Driver Utility
To examine and change DSSI parameters, you must first activate the DUP
driver utility by setting host to the specific device for which you want to
modify or examine parameters.
Use the following command for embedded DSSI:
SET HOST/DUP/DSSI/BUS:<BUS_NUMBER> <NODE_NUMBER> PARAMS

where:
<bus_number> is the DSSI bus number (0 or 1), and <node_number> is the
bus node ID (0–6) for the device on the bus.
Use the following command for KFQSA-based DSSI:
SET HOST/DUP/UQSSP/DISK <controller_number> PARAMS

where:
<controller_number> is the controller number (provided by the SHOW
UQSSP display) for the device on the bus.

B–8 VAX 4000 Model 300 Operation

In Example B–3, SET HOST/DUP/DSSI/BUS:1 0 PARAMS is entered to start the
DUP server for the ISE at node 0 of embedded DSSI bus 1. In Example B–4,
SET HOST/DUP/UQSSP/DISK 0 PARAMS is entered to start the DUP server for
the ISE at controller 0 of a KFQSA-based DSSI bus.
Example B–3: Starting the DUP Driver Utility (Embedded DSSI)
>>>SET HOST/DUP/DSSI/BUS:1 0 PARAMS
Starting DUP server...
Copyright (c) 1991 Digital Equipment Corporation
PARAMS>

Example B–4: Starting the DUP Driver Utility (KFQSA-Based DSSI)
>>>SET HOST/DUP/UQSSP/DISK 0 PARAMS
Starting DUP server...
Copyright (c) 1991 Digital Equipment Corporation
PARAMS>

B.3.2 Setting Allocation Class
After entering the DUP driver utility for a specified device, you can examine
and set the allocation class for the device as follows:
1. At the PARAMS> prompt, enter SHOW ALLCLASS to check the allocation
class of the ISE to which you are currently connected.
2. Enter SET ALLCLASS 2 (or enter the allocation class you desire).
3. Enter SHOW ALLCLASS to verify the new allocation class.

Programming Parameters for DSSI Devices

B–9

Example B–5 shows the steps for examining and changing the allocation
class for a specified device. In the example, the allocation class is changed
from an allocation class of 0 to an allocation class of 2.
Example B–5: Setting Allocation Class for a Specified Device
PARAMS>SHOW ALLCLASS
Parameter
Current
--------- ---------------ALLCLASS
0

Default
---------------0

Type
-------Byte

Radix
----Dec

Default
---------------0

Type
-------Byte

Radix
----Dec

PARAMS>SET ALLCLASS 2
PARAMS>SHOW ALLCLASS
Parameter
Current
--------- ---------------ALLCLASS
2

B.3.3 Setting Unit Number
After entering the DUP driver utility for a specified device, you can examine
and set the unit number for the device as follows:
1. At the PARAMS> prompt, enter SHOW UNITNUM to check the unit number
of the ISE to which you are currently connected.
2. Enter SET UNITNUM 10 (or enter the unit number you desire).
3. Enter SET FORCEUNI 0 to override the default unit number value
supplied by the bus node ID plug.
4. Enter SHOW UNITNUM to verify the new unit number.
5. Enter SHOW FORCEUNI to verify that the current value for the FORCEUNI
parameter is 0.
Example B–6 shows the steps for changing the unit number of a
specified device from unit number 0 to unit number 10.
6. Label the device with its unit number, using the unit number labels
shipped with your system. Figure B–3 shows where to affix a unit
number label on the device front panel.

B–10 VAX 4000 Model 300 Operation

Example B–6: Setting a Unit Number for a Specified Device
PARAMS>SHOW UNITNUM
Parameter
Current
--------- ---------------UNITNUM
0

Default
---------------0

Type
-------Word

Radix
----Dec

Parameter
Current
--------- ---------------UNITNUM
10

Default
---------------0

Type
-------Word

Radix
----Dec

PARAMS>SHOW FORCEUNI
Parameter
Current
--------- ---------------FORCEUNI
0

Default
---------------1

Type
-------Boolean

Radix
----0/1

PARAMS>SET UNITNUM 10
PARAMS>SET FORCEUNI 0
PARAMS>SHOW UNITNUM

Programming Parameters for DSSI Devices

B–11

To
H
Ha C
O
Lo
nd los Inse and pe Wa
it
ad
le n
le e
r
th
th t Ta
Lig
is
is
pe
ht

Attach Unit
Number Label

B–12 VAX 4000 Model 300 Operation
Un
lo

Attach Unit
Number Label

To
Re Han Op
P
W
Un
ait res
d e
m
lo
s
ov le n t
ad
his
e
Lig But
Ta
to
ht
pe
n

te
d
pe
in
Us
Us
e
e
Cle
Ta anin
pe g
O
pe
Ha rat
nd e
le

W
rit
Pr e
ot
ec

Figure B–3: Attaching a Unit Number Label to the Device Front Panel
ISE

TF85

MLO-006579

B.3.4 Setting Node Name
After entering the DUP driver utility for a specified device, you can examine
and set the node name for the device as follows:
1. At the PARAMS> prompt, enter SHOW NODENAME to check the node name of
the ISE to which you are currently connected.
2. Enter SET NODENAME SYSDSK (or enter the desired alphanumeric node
name of up to eight characters).
3. Enter SHOW NODENAME to verify the new node name.
Example B–7 shows the steps for changing the node name of a specified
device from the factory-supplied name to SYSDSK.
Example B–7: Changing a Node Name for a Specified Device
PARAMS>SHOW NODENAME
Parameter
Current
--------- ---------------NODENAME
R7CZZC

Default
---------------RF31

Type
-------String

Radix
----Ascii

Default
---------------RF31

Type
-------String

Radix
----Ascii

PARAMS>SET NODENAME SYSDSK
PARAMS>SHOW NODENAME
Parameter
Current
--------- ---------------NODENAME
SYSDSK

B.3.5 Setting System ID
NOTE: This parameter is modified only when replacing a device. Only
Digital service representatives and qualified self-maintenance customers
should remove devices. All parameters for the replacement device should
be programmed to match those of the original device.
After entering the DUP driver utility for a specified device, you can examine
and set the system ID for the device as follows:
1. At the PARAMS> prompt, enter SHOW SYSTEMID to check the system ID of
the device to which you are currently connected.
2. Enter SET SYSTEMID System ID (enter the desired serial number-based
system ID).
3. Enter SHOW SYSTEMID to verify the new system ID.

Programming Parameters for DSSI Devices

B–13

Example B–8 shows the steps for changing the system ID of a specified
device from the factory-supplied system ID to 1402193310841 (the system
ID for the replacement device is programmed to match that of the original).
Example B–8: Changing a System ID for a Specified Device
PARAMS>SHOW SYSTEMID
Parameter
Current
--------- ---------------SYSTEMID
0402193310841

Default
---------------0000000000000

Type
-------Quadword

Radix
----Hex

Type
-------Quadword

Radix
----Hex

PARAMS>SET SYSTEMID 1402193310841
PARAMS>SHOW SYSTEMID
Parameter
Current
--------- ---------------SYSTEMID
1402193310841

Default
---------------0000000000000

B.3.6 Exiting the DUP Server Utility
After you have completed setting and examining DSSI device parameters,
enter the WRITE command at the PARAMS> prompt to save the device
parameters you have changed using the SET command. The changes are
recorded to nonvolatile memory.
If you have changed the allocation class or node name of a device, the DUP
driver utility will ask you to initialize the controller. Answer Yes (Y) to
allow the changes to be recorded and to exit the DUP driver utility.
If you have not changed the allocation class or node name, enter the EXIT
command at the PARAMS> prompt to exit the DUP driver utility for the
specified device. Example B–9 shows the procedure for saving parameter
changes. In the example, the controller is initialized.

B–14 VAX 4000 Model 300 Operation

Example B–9: Exiting the DUP Driver Utility for a Specified Device
PARAMS>WRITE
Changes require controller initialization, ok? [Y/(N)] Y
Stopping DUP server...
>>>

NOTE: You must repeat the procedures in this chapter for each device for
which you want to change parameters.
Example B–10 shows the embedded DSSI busses after the unit numbers
for the devices on bus 0 have been changed from 0, 1, 2, and 3 to 10, 11, 12,
and 13. Note that the bus 0 device names are now MIA10, DIA11, DIA12,
and DIA13.
Example B–10: SHOW DSSI Display
>>>SHOW DSSI
DSSI Bus 0 Node 0 (TFDR1)
-MIA10 (TF85)
DSSI Bus 0 Node 1 (SYSDSK)
-DIA11 (RF31)
DSSI Bus 0 Node 2 (R7EB3C)
-DIA12 (RF31)
DSSI Bus 0 Node 3 (R7EB22)
-DIA13 (RF31)
DSSI Bus 0 Node 6 (*)
DSSI Bus 1 Node 0 (SNEEZY)
-DIB0 (RF31)
DSSI Bus 1 Node 1 (DOPEY)
-DIB1 (RF31)
DSSI Bus 1 Node 2 (SLEEPY)
-DIB2 (RF31)
DSSI Bus 1 Node 3 (GRUMPY)
-DIB3 (RF31)
DSSI Bus 1 Node 4 (BASHFUL)
-DIB4 (RF31)
DSSI Bus 1 Node 5 (HAPPY)
-DIB5 (RF31)
DSSI Bus 1 Node 6 (DOC)
-DIB6 (RF31)
DSSI Bus 1 Node 7 (*)
>>>

Example B–11 shows the sample KFQSA-based DSSI bus after the unit
numbers have been changed from 0, 1, 2, and 3 to 20, 21, 22, and 23. Note
that the device names are now DUA20, DUB21, DUC22, and DUD23.

Programming Parameters for DSSI Devices

B–15

Example B–11: SHOW UQSSP Display (KFQSA-Based DSSI)
>>>SHOW UQSSP
UQSSP Disk Controller 0 (772150)
-DUA20 (RF31)
UQSSP Disk Controller 1 (760334)
-DUB21 (RF31)
UQSSP Disk Controller 2 (760340)
-DUC22 (RF31)
UQSSP Disk Controller 3 (760322)
-DUD23 (RF31)
UQSSP Tape Controller 0 (774500)
-MUA0 (TK70)

B–16 VAX 4000 Model 300 Operation

Appendix C

Backup Procedures
This appendix describes the following procedures:
•

Installing and booting standalone BACKUP on the system disk

•

Installing and booting standalone BACKUP on a TK50 tape cartridge

•

Backing up and restoring the system disk

C.1 Overview of Standalone BACKUP
The Backup utility lets you create and restore backup copies of files,
directories, and user disks. Because the Backup Utility copies only what
is on the disk and ignores sections of any open files contained in memory,
you should use it to back up user disks, not the system disk. If you use
the Backup Utility to back up the system disk, the portions of the files that
were in memory and data about files not yet written back to the disk (cache)
will not be recorded on the resulting backup copy.
Use standalone BACKUP to make a complete backup of the system disk.
Standalone BACKUP is a version of the Backup Utility that runs without
the support of the entire VMS operating system. Before you use standalone
BACKUP, you must shut down the VMS operating system. The shutdown
procedure sends the contents of the caches back to the disk and closes any
open files. By shutting down the system and using standalone BACKUP,
you can make an exact copy of the system disk.
You can keep standalone BACKUP on the system disk, a TK50 tape
cartridge, or any other media the system supports. Digital recommends
that you keep standalone BACKUP on the system disk and on a tape
cartridge.
Usually you boot standalone BACKUP from the system disk because it
saves time. You should, however, keep a copy of standalone BACKUP on a
tape cartridge in case the system disk becomes damaged.

Backup Procedures

C–1

C.1.1 Installing Standalone BACKUP on the System Disk
You can install standalone BACKUP in any available root directory on
the system disk from [SYS1] to [SYSE]. However, Digital has established
[SYSE] as the standard directory for standalone BACKUP.
To install standalone BACKUP in [SYSE] on the system disk, use the
following procedure:
1. Log in to the SYSTEM account.
2. Enter the following command:
$ @SYS$UPDATE:STABACKIT SYS$SYSDEVICE:

Return

The procedure places the files in the directories [SYSE.SYSEXE] and
[SYSE.SYS$LDR] on the system disk. It lists the files as they are
copied. When the procedure finishes, the system displays the following
message:
The kit is complete.

3. To boot standalone BACKUP from the system disk, see Section C.1.2.

C.1.2 Booting Standalone BACKUP from the System Disk
To boot standalone BACKUP from the system disk, use the following
procedure:
1. If the VMS operating system is not running, go to step 2.
If the VMS operating system is running, enter the following command
to shut down the system:
$ @SYS$SYSTEM:SHUTDOWN

Return

Answer the questions. When the procedure asks if an automatic system
reboot should be performed, press Return for No. When the procedure
is finished, the system displays the following message:
SYSTEM SHUTDOWN COMPLETE - USE CONSOLE TO HALT SYSTEM

2. Stop the system by pressing the Halt button on the SCP.
3. Enter the BOOT command in the following format:
>>>B/E0000000 device_name

Return

Substitute the device name of the system disk for device_name. For
example, if the system disk has a device name of DIA0, enter the
following:

C–2 VAX 4000 Model 300 Operation

>>>B/E0000000 DIA0

Return

4. Standalone BACKUP displays a message similar to the following:
VAX/VMS Version V5.4-n Major version id = n Minor version id = n

5. A few minutes later the procedure asks for the date and the time. Enter
the date and time, using the 24-hour clock format; for example:
PLEASE ENTER DATE AND TIME (DD-MMM-YYYY HH:MM)
19-APR-1991 13:00 Return

6. The system displays a list of the local devices on your system; for
example:
Available device MUA0:
Available device DIA0:
.
.
.

device type TK70
device type RF31

Check the list of devices. If the list is incomplete, make sure that all
the devices are connected properly to the system. See the VAX 4000
Model 300 Installation manual for details.
7. When standalone BACKUP finishes booting, it displays an identification message followed by the dollar-sign prompt ($):
%BACKUP-I-IDENT, stand-alone BACKUP V5.4-n; the date is
19-APR-1991 13:00:00.00
$

To back up the system disk, see Section C.2.
To restore the system disk, see Section C.3.

C.1.3 Installing Standalone BACKUP on a Tape Cartridge
If your system has a tape drive, Digital recommends that you keep
standalone BACKUP on a tape cartridge in case the system disk becomes
damaged. To install standalone BACKUP on a tape cartridge, use the
following procedure.
NOTE: If you have a tape cartridge distribution kit, you already have
standalone BACKUP on a tape cartridge. If the original tape cartridge
becomes damaged or if you need to make extra copies, use the procedure in
this section.

Backup Procedures

C–3

1. Obtain a blank tape cartridge. Write the name on the paper label. For
example, you would use the name S/A BKUP V5.4–n TK50 to build a
Version 5.4–n kit. Insert the label into the label slot.
2. Write-enable the tape cartridge.
3. Insert the tape cartridge labeled S/A BKUP V5.4–n TK50 in the tape
cartridge drive.
4. Log in to the SYSTEM account.
5. Enter the following command:
$ @SYS$UPDATE:STABACKIT

Return

6. The system asks for the name of the target device. Enter MUA0, for
example:
%STABACKIT-I-SYMDEL, all global symbols deleted
Enter the name of the device on which to build the kit:
MUA0 Return

NOTE: If your system uses the TLZ04 tape drive, enter the device name
MKA0. If your system uses the TF85 tape drive, enter the device name
MIA0.
7. The system displays the following message:
.
.
.
Please place the scratch tape cartridge in drive _MUA0:
This volume will receive the volume label SYSTEM.
Enter "YES" when ready:

8. When you are ready to continue, enter Y (for Yes) and press Return.
9. The system displays verification messages informing you that files are
being copied.
10. When standalone BACKUP is installed, the system displays a message
similar to the following:
Ending time
19-APR-1991 13:45:29.90
Starting time 19-APR-1991 13:22:39.05
The kit is complete.
$

11. Remove the tape cartridge labeled S/A BKUP V5.4–n TK50 from the
tape cartridge drive.

C–4 VAX 4000 Model 300 Operation

12. Write-protect the tape cartridge and store it in a safe place.

C.1.4 Booting Standalone BACKUP from a Tape Cartridge
If the system disk containing standalone BACKUP should become unusable,
you can boot standalone BACKUP from a tape cartridge.
Booting
standalone BACKUP from a tape cartridge takes approximately 20 minutes.
You need a tape cartridge that contains standalone BACKUP (either the
distribution tape cartridge or one that you created). To boot standalone
BACKUP from a tape cartridge, use the following procedure:
1. If the VMS operating system is not running, go to step 2.
If the VMS operating system is running, enter the following command
to shut down the operating system:
$ @SYS$SYSTEM:SHUTDOWN

Return

2. Stop the system by pressing the Halt button on the SCP.
3. Insert the tape cartridge containing standalone BACKUP in the tape
cartridge drive.
4. To boot standalone BACKUP, enter the following command at the
console prompt (>>>):
>>>B MUA0

Return

NOTE: If your system uses the TLZ04 tape drive, enter the device name
MKA0. If your system uses the TF85 tape drive, enter the device name
MIA0.
5. Standalone BACKUP displays a message similar to the following:
VAX/VMS Version V5.4--n Major version id=1 Minor version id=0

6. The procedure asks for the date and the time. Enter the date and time,
using the 24-hour clock format; for example:
PLEASE ENTER DATE AND TIME (DD-MMM-YYYY HH:MM)
19-APR-1991 13:00 Return

7. The system displays a list of the local devices on your system; for
example:

Backup Procedures

C–5

Available device MUA0:
Available device DIA0:
.
.
.

device type TK70
device type RF31

8. When standalone BACKUP finishes booting, it displays an identification message followed by the dollar-sign prompt ($):
%BACKUP-I-IDENT, stand-alone BACKUP V5.4--n; the date is
19-APR-1991 13:00:00.00
$

9. Remove the tape cartridge containing standalone BACKUP from the
tape cartridge drive.
To back up the system disk, see Section C.2.
To restore the system disk, see Section C.3.

C.2 Backing Up the System Disk
The reasons to back up a system disk are:
•

In case a problem occurs during a VMS upgrade or update, or during
the installation of other software products: Before you attempt any of
these procedures, you should back up the system disk. If a problem
occurs, you can restore the backup copy of the system disk.

•

To prevent loss of system files if they are deleted accidentally: After
you install or upgrade the VMS operating system or any other software
products, you should back up the system disk. If a system file is deleted
and renders the system disk inoperable, you can restore the backup copy
and continue to use the system.

•

In case the system disk malfunctions: If you have a backup copy of
the VMS operating system, you can restore it to a functioning disk and
continue to use the system.

•

To eliminate disk fragmentation: Fragmentation happens when files
are not stored contiguously on the disk. Back up the system disk to a
tape cartridge, diskettes, or another disk. Then restore the files to the
original system disk. The BACKUP command creates a copy on which
files are stored contiguously.

Digital recommends that you use standalone BACKUP, which uses a subset
of Backup utility qualifiers, to back up and restore the system disk. It is
especially important that you understand the functions of the /IMAGE and
/PHYSICAL qualifiers to the BACKUP command before using standalone
BACKUP. Table C–1 summarizes the standalone BACKUP qualifiers.

C–6 VAX 4000 Model 300 Operation

Table C–1: Standalone BACKUP Qualifiers
Qualifier

Function

/IMAGE

Allows you to create a functionally equivalent copy of the entire
system disk

/PHYSICAL

Copies, saves, restores, or compares the entire system disk in
terms of logical blocks, ignoring any file structure

For a complete description of the Backup utility and its qualifiers, see the
VMS Backup Utility Manual.
To back up the system disk, use the following procedure:
1. Decide whether you want to back up the system to another fixed disk or
to a tape cartridge. If you are using a tape cartridge, obtain a scratch
tape that you can use for the backup copy. A scratch tape cartridge is a
tape cartridge that is either blank or contains files that you no longer
need.
2. If you are using a tape cartridge, write-enable it. To write-enable a tape
cartridge, slide the write-protect switch away from the tape cartridge
label. Insert the tape cartridge in the tape cartridge drive.
3. Determine the device name of the drive holding the system disk and
the drive holding the backup disk or tape cartridge. Enter the SHOW
DEVICE command at the console prompt (>>>).
4. Boot standalone BACKUP as described in Section C.1.2 or Section C.1.4.
5. Enter the BACKUP command in one of the following formats:
$ BACKUP/IMAGE/VERIFY source_drive: target_drive:
$ BACKUP/IMAGE/VERIFY source_drive: target_drive:-$ saveset.BCK/LABEL=volume_label/REWIND Return

Return

where:
•

source_drive is the location of the files that you want to back up.
Use the device name of the drive holding the system disk.

•

target_drive is the destination. Use the device name of the drive
holding the backup disk or tape cartridge.

•

saveset.BCK is the name of the saveset (the name should reflect
the contents of the backup tape and cannot exceed 17 characters in
length).

Backup Procedures

C–7

•

volume_label is the volume label of the tape cartridge in the tape
drive. If the tape has been initialized already, use the same volume
label that was assigned by the INITIALIZE command. If the tape
has not been initialized, you can assign a volume label at this time.
The volume label cannot have more than six characters.

The following example uses the BACKUP command to make a backup
disk. You can use a backup disk as the system disk:
$ BACKUP/IMAGE/VERIFY DIA0: DIA1

Return

The following example uses the BACKUP command to make a backup
tape cartridge. The contents of the backup tape cartridge must be
restored to a disk before you can use them. For more information,
see Section C.3.
$ BACKUP/IMAGE/VERIFY DIA0: MUA0:- Return
-$ APR_19_1991.BCK/LABEL=19APRF/REWIND Return

6. The system displays the following message:
%BACKUP-I-STARTVERIFY, starting verification pass

7. If you are backing up the system disk to another disk, proceed to step
8.
If you are backing up your system disk to a tape cartridge and the
contents of the system disk fit on one tape cartridge, remove the backup
tape cartridge from the drive. Label the tape COMPLETE SYSTEM
BACKUP, number it, and include the date. Proceed to step 8.
If you are backing up your system disk to a tape cartridge and the
system disk contains more data than one tape cartridge can store, the
system displays the following messages:
%BACKUP-I-RESUME, Resuming operation on volume 2
%BACKUP-I-READYWRITE, Mount volume 2 on _MUA0: for writing
Enter "YES" when ready:

Do the following:
a. Remove the backup tape cartridge from the drive.
b. Label the tape COMPLETE SYSTEM BACKUP, number it, and
include the date.
c.

Write-protect the tape cartridge.

d. Write-enable another scratch tape cartridge and insert it in the
drive.

C–8 VAX 4000 Model 300 Operation

When you are ready to continue, enter Y (for Yes) and press Return.
The procedure displays the following message:
%BACKUP-I-STARTVERIFY, starting verification pass

Each time the procedure displays a mount request, follow steps
a through e.
8. When the procedure is finished, the system displays the following
message:
%BACKUP-I-PROCDONE, operation completed. Processing finished at
19-APR-1991 15:00:00.00
If you do not want to perform another standalone BACKUP operation,
use the console to halt the system.
If you do not want to perform another standalone BACKUP operation,
ensure the standalone application volume is online and ready.
Enter "YES" to continue:

9. Press the Halt button.
10. Reboot the system.
Store the backup tape cartridge in a safe place.
NOTE: The BACKUP command creates a system disk that includes a
Digital-provided set of volume parameters, including a CLUSTER_SIZE
(disk access scheme) of value 1. (The CLUSTER_SIZE parameter refers
to the way files are stored on the disk, NOT to VAXcluster environments.)
You can change most volume parameters later with the SET VOLUME
command. However, to change the CLUSTER_SIZE parameter, you must
back up the system disk that has been initialized previously with the
CLUSTER_SIZE value that you want. To prevent the BACKUP command
from reinitializing the target disk, use the /NOINITIALIZE qualifier. For
more information about initializing a disk, see the Guide to Maintaining
a VMS System. For more information on the BACKUP command, see the
VMS Backup Utility Manual.

C.3 Restoring the System Disk
To restore the system disk from a tape cartridge, use the following
procedure:
1. Determine the device names of the drive holding the system disk and
the drive holding the backup disk or tape cartridge. Enter the SHOW
DEVICE command at the console prompt (>>>).

Backup Procedures

C–9

2. Boot standalone BACKUP as described in Section C.1.2 or Section C.1.4.
3. If you have a backup tape cartridge, make sure it is write protected.
Insert it in the drive.
4. Enter the BACKUP command in one of the following formats:
$ BACKUP/IMAGE/VERIFY source_drive: target_drive:

Return

$ BACKUP/IMAGE/VERIFY source_drive:- Return
-$ saveset.BCK/SAV/REWIND target_drive: Return

where:
•

source_drive is the location of the files that you want to restore.
Use the device name of the drive holding the backup disk or tape
cartridge.

•

target_drive is the destination. Use the device name of the drive
holding the system disk.

•

saveset.BCK is the name of the saveset, if you have a backup tape

cartridge.

For example:
$ BACKUP/IMAGE/VERIFY DIA0: DIA1:

Return

The following example uses the BACKUP command to restore the
system disk from a backup tape cartridge:
$ BACKUP/IMAGE/VERIFY- Return
-$ MUA0:APR_19_1991.BCK/SAV/REWIND DIA0:

Return

5. The system displays the following message:
%BACKUP-I-STARTVERIFY, starting verification pass

If you are backing up to a disk or if your saveset fits on one tape, proceed
to step 7.
6. If you have more than one backup tape cartridge, the system displays
the following message:
%BACKUP-I-RESUME, Resuming operation on volume 2
%BACKUP-I-READYWRITE, Mount volume 2 on _MUA0: for reading
Enter "YES" when ready:

Remove the backup tape cartridge from the drive. Insert the next
backup tape cartridge in the drive, enter Y (for Yes) and press Return.
Each time you receive a mount request, repeat this step.

C–10 VAX 4000 Model 300 Operation

7. When the procedure is finished, the system displays the following
message:
%BACKUP-I-PROCDONE, operation completed.
Processing finished at 19-APR-1991 15:00:00.00
If you do not want to perform another standalone BACKUP
operation, use the console to halt the system.
If you do not want to perform another standalone BACKUP
operation, ensure the standalone application volume is
online and ready.
Enter "YES" to continue:

8. Press the Halt button.
9. Reboot the system.

Backup Procedures

C–11

Appendix D

Removing Unwanted VMS Files
D.1 Using VMSTAILOR
Read this appendix if you want to remove the VMS operating system and
DECwindows files that you do not need from the system disk. For example,
if you are not running DECnet–VAX, you do not need the network support
files. You can remove unwanted files with the VMSTAILOR program. Enter
the following command to log in to the SYSTEM account:
$ RUN SYS$UPDATE:VMSTAILOR

Return

The VMSTAILOR program asks you if you want to tailor files ON or OFF.
Enter OFF to remove unwanted files.
CAUTION: Do not delete files from the factory-installed software (FIS)
system until you have backed up your software. A VMS distribution
kit is needed to return files to the system disk. Also, VMSTAILOR and
DECW$TAILOR procedures cannot restore files from a backup set. It may
be necessary to reload the system software from a backup set if files are
incorrectly deleted and if a VMS distribution kit is not available.
The VMSTAILOR program lists each group of files and its size in blocks.
Files are grouped according to their function. For example, all the files
required for cluster support are in one group. A file group is made up of
many small subgroups. You can eliminate an entire group of files or you
can eliminate one or more of its subgroups.
Decide which file groups or subgroups you do not need to support your
system. The VMSTAILOR program displays step-by-step instructions that
are easy to follow.
VMSTAILOR displays the names of the files it deletes. After it finishes,
AUTOGEN runs automatically to make the adjustments that are necessary
after system files are deleted.
NOTE: You can use VMSTAILOR at any time to delete or add groups of
VMS files to the system disk. After adding files to the system disk, you
should apply any updates that affect them.

Removing Unwanted VMS Files

D–1

For example, suppose you do not need the VMS Version 5.0 MAIL utility
and you run VMSTAILOR to remove those files. Later on, if you decide
you want to use mail, you can run VMSTAILOR to return the MAIL files
to the system disk. You then apply any VMS upgrade or update that has
occurred since Version 5.0 that affected the MAIL utility. To remove VMS
DECwindows files from the system disk, enter the following command:
$ RUN SYS$UPDATE:DECW$TAILOR

Return

The DECW$TAILOR program works just like the VMSTAILOR program.

D–2 VAX 4000 Model 300 Operation

Glossary
Application program

A program designed to meet specific user needs, such as a program that
monitors a manufacturing process.
Allocation class

The allocation class is used by the VMS operating system to derive a
common lock resource name for multiple access paths to the same device.
Backplane

1. The connector block that printed circuit boards plug into.
2. A printed circuit board containing the bus.
Back up

The process of making copies of the data stored in the ISE(s) so that you
can recover that data after an accidental loss. You make these copies on a
tape cartridge and then store it in a safe place.
Backup copy

A duplicate copy of data on the ISE that is stored on a tape cartridge.
Baud rate

The speed at which signals are transmitted serially over a communication
line.
Binary

A number system that uses only two digits: 0 and 1. These digits are
usually represented in circuitry by two voltage levels.
Bit

A binary digit, the smallest unit of information in a binary system of
notation, designated as a 0 or a 1.
Boot

To use a bootstrap program to start a computer system.

Glossary–1

Bootable medium

A fixed disk or magnetic tape containing software (such as an operating
system) that the bootstrap program can load into the system memory.
Boot node

The management center for the cluster and its major resource provider.
Bootstrap

A program that you start when you turn on the system. The bootstrap loads
software contained on a fixed disk or magnetic tape cartridge into memory.
The system then stops executing the bootstrap and starts executing the
software in memory. The software usually loads an operating system or
other software into memory, so that the system can start processing.
Bug

An error in the design or implementation of hardware or software system
components.
Bus

The connection between the central processing unit (CPU) and input/output
devices in the system. Information signals such as address, data, and
control signals are carried through the bus.
Byte

A group of eight binary digits (bits). A byte is one-half the size of a word
and one-quarter the size of a longword.
Central processing unit (CPU)

The part of a computer system that controls the interpretation and
execution of instructions.
Cluster

A group of computers networked together that share disk storage,
application programs, and other computer resources.
Also called a
VAXcluster.
Command

An order given by a user to a computer, often through a terminal keyboard.
Communication line

A cable along which electrical signals are transmitted. Systems or devices
connected by communication lines can share information and resources.

Glossary–2

Computer system

A combination of computer hardware, software, and external devices that
performs specific operations or tasks.
Console terminal

The terminal you use when installing software and running diagnostic
programs.
Controller

A component that regulates the operation of one or more peripheral devices.
Controllers are often called interface units.
CPU

See Central processing unit.
Data

A representation of facts, concepts, or instructions, suitable for
communication, interpretation, or processing by human beings or by
machines.
DAT

Digital audio tape. Used in digital data storage recording technology.
Data transmission

The movement of data, in the form of electrical signals, along a
communication line.
DDS

Digital data storage.
Debug

To detect, locate, and correct errors (bugs) in system hardware or software.
DECnet

Digital networking software that runs on nodes in both local and wide area
networks.
DECwindows

Digital’s workstation management product, a superset of the industry
standard X Window System. It can be used to run windowing applications
efficiently on single workstations, or in distributed processing networks of
workstations and non-workstations systems.

Glossary–3

Default

A value or setting that in most cases is normal or expected.
Device

The general name for any entity connected to a system that is capable of
receiving, storing, or transmitting data.
Device name

The name by which a device or controller is identified within a system. You
use the device name to refer to that device when communicating with the
system.
Diagnostic program

A program that detects and identifies abnormal hardware operation.
The MicroVAX Diagnostic Monitor software contains several diagnostic
programs.
Disk

A flat circular plate with a coating on which data is stored magnetically in
concentric circles (tracks).
Disk drive

A device that contains a fixed disk or one or more diskettes. The drive
contains mechanical components that spin the disk or diskettes and move
the read/write heads that store and read information on the surface of the
disk or diskettes.
DSSI

Digital Storage Systems Interconnect (DSSI) is the technology used for
efficient management of integrated storage products. DSSI is a member
of the Digital Storage Architecture (DSA) product family.
EIA

Electronic Industries Association.
Error message

A message displayed by the system to indicate it has detected an error or
malfunction.
File

A collection of related information treated by the computer as a single item.

Glossary–4

Firmware

Software instructions stored in a fixed form, usually in read-only memory
(ROM). In a VAX 4000 system, the power-up self-tests and bootstrap
program are firmware.
Formatted data

Data laid out in a particular pattern to conform to a predetermined
structure. The structure is dictated by the system software.
Hardware

The physical components — mechanical and electrical — that make up a
computer system. Compare Software.
Head

The part of a fixed-disk drive, diskette drive, or tape drive that reads,
records, and erases data. Also called read/write head.
Input device

A piece of equipment used to transfer data into the computer. A keyboard
is an input device.
Input/Output (I/O) device

A piece of equipment that accepts data for transmission both to and from
a computer. A terminal is an input/output device.
Integrated Storage Element (ISE)

Integrated Storage Elements (ISEs) are intelligent storage devices that
contain their own controller and MSCP server.
Interactive

The method of communicating with a computer system. You enter a
command at the keyboard, the system executes the command, and then
responds with a message or prompts for another command.
Interface

A device or piece of software that lets different components of a computer
communicate with one another.
I/O

Abbreviation for input/output.
Kbyte

1024 bytes.

Glossary–5

LED

Light-emitting diode.
An LED on the console module displays a
hexadecimal countdown during the power-up sequence.
Load

1. To move software, usually from a peripheral device into memory.
2. To place a disk in a disk drive, or tape in a tape drive.
Longword

A group of 32 bits, equal to two words or four bytes.
Magnetic tape

A long strip of plastic coated with magnetic oxide, used for storing data.
Often called magtape. The tape contained in a tape cartridge.
Mbyte

1,048,576 bytes.
Memory

The area where a computer finds the instructions and data it will process.
Menu

A displayed list of options. The list usually contains commands you can
enter.
Network

A group of individual computer systems that are connected by
communications lines to share information and resources.
Network coordinator

The network coordinator manages the network, assigns unique node names
and addresses for each system on the network, and provides administrative
assistance to network users.
Node

An individual information processing unit, such as a computer, workstation,
or device, that is connected to a network. A node is an end point to any
branch of a network or a junction common to two or more branches.
Off line

Pertaining to equipment, devices, and events that are not under direct
control of the computer system.

Glossary–6

Operating system

A collection of programs that controls the overall operation of a computer
and performs such tasks as:
•

Assigning places in memory to programs and data

•

Processing requests, scheduling jobs

•

Controlling the operation of input and output devices

Output device

A device by means of which data can be extracted from a computer system,
for example, a printer.
Peripheral device

Any device distinct from the central processing unit that provides it with
additional memory storage or communication capability. Examples are disk
and diskette drives, video terminals, and printers.
Power-up sequence

A series of ordered events that occurs when you supply power to a system
by turning it on.
Printer

A peripheral device that provides paper copies of information stored in a
computer.
Product Authorization Key (PAK)

A PAK is a printed certificate containing information that must be input to
the VMS License Management Facility to authorize the VMS user to run a
particular software product.
Program

The complete sequence of instructions necessary for a computer to perform
a task. See Software.
Prompt

A character(s) or word(s) that a computer displays to indicate it is waiting
for you to type a command.
Quorum disk

A quorum disk acts as a virtual node in a system using the quorum scheme.
See the VMS VAXcluster Manual for further information on quorum disks
and the quorum scheme.

Glossary–7

Read-only memory (ROM)

A memory that does not allow modification of its contents. The computer
can use data in a ROM but cannot change it.
Reboot

To restart a computer system.
system.

Pressing the Reset button reboots the

Record

A set of related data that a program can treat as a unit. A file consists of
a number of records.
ROM

See Read-only memory.
Run

1. A single continuous execution of a program.
2. To execute a program.
Satellite system

A system that is booted remotely from the system disk on the boot node. A
computer system that obtains a specific set of services from a server system.
Server

Hardware or software that provides a specific set of services to a satellite.
Server system

In a VAXcluster, a computer that is used to start the satellite systems and
to manage their use of common resources.
Software

Programs executed by a computer system to perform a chosen or required
function. Compare Hardware.
Software package

A set of related programs that performs a specific task.
Storage medium

Any device capable of recording information, for example, a tape cartridge.
Store

To enter data into a storage device, such as a disk, or into memory.

Glossary–8

System

A combination of computer hardware and software and external devices
that performs specific processing operations.
System Disk

The disk or ISE that holds VMS factory-installed software.
System management

Tasks performed by the operating system to control the overall operation
of the computer system.
Tailoring

Using the VMSTAILOR program to remove the VMS operating system and
DECwindows files that you do not need from the system disk.
Terminal

An input/output device generally used for communication between the users
of a computer system and the system itself.
Video terminal

A terminal that displays information on the screen of a cathode ray tube
(CRT).
VMS

Digital’s proprietary operating system.
Word

A word is 16-bits long.
Write-protect

To protect a disk, diskette, or other storage medium against the addition,
revision, or deletion of information.

Glossary–9

Index
A
Air circulation, 1–18
ALLCLASS, B–2
setting, B–9
Autobooting the system, 2–6

B
Backing up system disk
using standalone BACKUP, C–7
Backup
reasons for, C–6
system disk, C–6
BACKUP commands
backing up, C–7
restoring the system disk, C–10
Base system components
function, 1–19
BOOT command
standalone BACKUP on tape
cartridge, C–5
standalone BACKUP on the
system disk, C–2
uses, 2–12
Booting from console mode, 2–11
Booting the system
autobooting, 2–6
from console mode, 2–11
Break Enable/Disable switch, 1–13
Bus node ID plugs
changing, 3–5
removing, 3–5

C
Card cage
location, 1–10

Card cage (Cont.)
slots, number of, 1–10
Cartridge release handle, 3–6, 3–19
Cassette tape
handling of, 3–32
Central processing unit (CPU)
function, 1–20
Circuit breaker
function, 1–16
location, 1–16
operation, 1–16
CleaningTape III
using, 3–18
Communications controllers
asynchronous serial devices, 1–23
CXA16, 1–24
CXY08, 1–24
function, 1–23
network devices, 1–23
set-up required, 3–39
synchronous serial devices, 1–23
types, 1–23, 3–38
using controllers with modem
support, 3–40
using controllers without modem
support, 3–39
using network controllers, 3–40
Console module, 1–11
Console terminal connector
function, 1–13
location, 1–13
CPU
See Central processing unit
location, 1–11
CXA16
communications controller, 1–23
CXY08

Index–1

CXY08 (Cont.)
communications controller, 1–24

Halting the system (Cont.)
description, 2–12

DC OK light
function, 1–16
on power supply, 1–15, 1–16
system, 1–8
DECW$TAILOR
using, D–2
DECwindows
removing unwanted files, D–2
DELNI
connecting to an Ethernet cable,
3–42
DESQA
before using, 3–41
Door
front door, 1–1 to 1–5
DSSI
host adapter, 1–21
Dual-host capability, 1–25
DUP driver utility, B–2, B–4
entering, B–8
exiting, B–14

Indicator lights
on TF85 tape drive, 3–7
on TK70 tape drive, 3–19
Inserting a tape cartridge, 3–12,
3–24
Integrated storage element
description, 1–21
Integrated storage elements, 3–3
changing the bus node ID plugs,
3–5
controller, 1–22
controls and indicators, 3–3
description, 1–21
function, 1–21
location, 1–8
write-protecting, 3–5

E
Enclosure
front view, 1–6
Error messages
at power-up, 2–4

F
Fans, 1–18
function, 1–18
location, 1–18
FORCEUNI, B–2
Front door
description, 1–1
opening, 1–3

H
Halting the system, 2–12

Index–2

L
Labeling a TF85 tape cartridge, 3–8
Labeling a TK70 tape cartridge,
3–21
Language Inquiry Mode
setting of Power-Up Mode switch,
1–12
LED display
on CPU cover panel, 1–13
Loading a TF85 tape cartridge, 3–8
Loading a TK70 tape cartridge, 3–20
Loading system software
with BOOT command, 2–12
Locking the door, 1–1
Loop Back Test Mode
setting of Power-Up Mode switch,
1–13

M
Main memory, 1–20
Mass storage, 1–21
controllers, 1–22

Mass storage (Cont.)
devices, 1–21, 3–6, 3–18
options, 3–1
subsystems, 1–22
Mass storage devices
RF-series ISEs, 3–2
Mass storage shelf
description, 1–8
Modems
function, 1–23
using, 3–40
Module cover
labels, 1–11
types, 1–11
Module identification labels, 1–11
Multihost capability, 1–25

N
Network
communications controllers, 1–20,
1–24
New system
using, 2–1
NODENAME, B–2
setting, B–13

O
Opening the door, 1–1
Optional devices
adding to system, 1–25
Over Temperature Condition light
system, 1–8

P
Pages and memory management,
1–20
Power supply
and system controls, 1–15
location, 1–15
Power-up indicators
normal, 2–4
Power-Up Mode switch, 1–12
Power-up self-tests

Power-up self-tests (Cont.)
description, 2–5
Printers
use of, 3–43

Q
Qualifiers
standalone BACKUP, C–6

R
Removable media
function, 1–21
Removing a tape cartridge, 3–15,
3–27
Removing unwanted files
VMSTAILOR utility, D–1
Restarting the system
description, 2–13
Restoring system disk
from disk, C–9
from tape cartridge, C–9
RF-series integrated storage
elements, 3–2
Run Mode
setting of Power-Up Mode switch,
1–13

S
Serial controllers
with modem control support,
1–23
without modem control support,
1–23
SET BOOT device name command
use of, 2–9
SHOW commands, B–6
Shutdown procedure
when turning off system, 2–13
Standalone BACKUP
booting from system disk, C–2
booting from tape cartridge, C–5
installing on system disk, C–2
installing on tape cartridge, C–3

Index–3

Standalone BACKUP (Cont.)
overview, C–1
qualifiers, C–6
storage media, C–1
use, C–1
Switch settings, 2–1
normal operation, 2–1
special operation, 2–2
System components
optional, 1–21
System disk
backing up to disk, C–7
backing up to tape cartridge, C–7
restoring from disk, C–9
restoring from tape cartridge,
C–9
SYSTEMID, B–3
setting, B–13

T
Tape cartridge
handling instructions, 3–12, 3–24
inserting, 3–12, 3–24
removing, 3–15, 3–27
storage guidelines, 3–12, 3–24
TF85 tape cartridge
calibration, 3–13
labeling, 3–8
write-protecting, 3–9
write-protect switch, 3–10
TF85 tape drive
access to, 3–6
cleaning, 3–18
controls, 3–6
indicator lights, 3–7
loading, 3–8
location, 1–8
operation, 3–8
summary of indicators, 3–17
uses of, 3–6
TK50/70 tape cartridge
calibration, 3–25
write-protect switch, 3–22
TK70 tape cartridge

Index–4

TK70 tape cartridge (Cont.)
labeling, 3–21
write-protecting, 3–22
TK70 tape drive
access to, 3–18
controls, 3–19
indicator lights, 3–19
loading, 3–20
location, 1–8
operation, 3–20
summary of indicator lights, 3–29
uses of, 3–18
TLZ04 cassette tape
setting the write-protect tab,
3–32
write-protect tab, 3–32
TLZ04 cassette tape drive
indicators, 3–31
TLZ04 tape drive
head cleaning, 3–36
head cleaning cassette, 3–36
location, 1–8
Turning off the system, 2–13
Turning on the system, 2–4
TZL04 Drive indicator, 3–31
TZL04 Tape indicator, 3–31

U
UNITNUM, B–2
setting, B–10
Unload button, 3–6, 3–19
Unloading a TF85 tape cartridge,
3–8
Unloading a TK70 tape cartridge,
3–20
Using a new system, 2–1

V
VMSTAILOR
AUTOGEN, D–1
using, D–1
VMSTAILOR utility, D–1

W
Write-enabling
a storage element, 3–3
Write-protecting
a storage element, 3–3
a TF85 tape cartridge, 3–9
a TK70 tape cartridge, 3–22
Write-protect switch
on a TF85 tape cartridge, 3–10
on a TK50/70 tape cartridge,
3–22

Index–5