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Document:	VAX 4000 Model 100A Operator Information
Order Number:	EK-503AA-OP
Revision:	A01
Pages:	138
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OCR Text

VAX 4000 Model 100A
Operator Information
Order Number: EK–503AA–OP. A01

August 1993
This manual describes how to operate the VAX 4000 Model 100A.

Digital Equipment Corporation
Maynard, Massachusetts

August 1993
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 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 on 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 1993.
All Rights Reserved.
The postpaid Reader’s Comments forms at the end of this document request your critical
evaluation to assist in preparing future documentation.
The following are trademarks of Digital Equipment Corporation: CompacTape, DECconnect,
Digital, ThinWire, VAX, VAXcluster, VAX DOCUMENT, VMS, and the DIGITAL logo.
All other trademarks and registered trademarks are the property of their respective holders.
S2278

This document was prepared using VAX DOCUMENT, Version 2.1.

Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1

VAX 4000 Model 100A Hardware
1.1
1.2
1.3

System Unit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Terminal Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Unit Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1
1–5
1–6

2 Internal System Devices
2.1
2.2
2.2.1
2.2.2
2.2.3
2.3
2.3.1
2.3.2
2.3.3
2.3.4
2.4
2.4.1
2.4.2
2.4.3
2.5
2.5.1
2.5.2
2.5.3
2.6
2.7

Accessing the Removable Media System Devices . . . . . . . . . . . . .
TZ30 Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TZ30 Controls and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inserting and Using a Tape Cartridge . . . . . . . . . . . . . . . . . .
Removing a Tape Cartridge from the Drive . . . . . . . . . . . . . .
TZK10 QIC Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TZK10 Controls and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . .
QIC Tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inserting a QIC Tape into the TZK10 . . . . . . . . . . . . . . . . . .
Removing a QIC Tape from the TZK10 . . . . . . . . . . . . . . . . .
TLZ06 Cassette Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TLZ06 Controls and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inserting a Cassette Tape into the TLZ06 . . . . . . . . . . . . . . .
Removing a Cassette Tape from the TLZ06 . . . . . . . . . . . . . .
RRD42 Compact Disc Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RRD42 Controls and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . .
Inserting a Compact Disc into the RRD42 Compact Disc
Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the Caddy from the RRD42 . . . . . . . . . . . . . . . . . .
Cleaning Device Drive Heads . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–2
2–3
2–3
2–7
2–10
2–12
2–12
2–12
2–14
2–16
2–18
2–18
2–20
2–22
2–24
2–24
2–26
2–30
2–32
2–33

iii

3 Network Information
3.1
3.2
3.3
3.4
3.5
3.6
3.6.1
3.7
3.7.1
3.7.2
3.8

Selecting the Ethernet Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the System Unit to a ThinWire Ethernet
Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the System Unit to a DECconnect Faceplate . . . . . . .
Connecting the System Unit to a Standard Ethernet Network . .
Testing the Ethernet Installation . . . . . . . . . . . . . . . . . . . . . . . . .
Completing the Ethernet Installation . . . . . . . . . . . . . . . . . . . . .
If the Network Installation Fails . . . . . . . . . . . . . . . . . . . . . .
Removing the System Unit from a Network . . . . . . . . . . . . . . . . .
Removing the System Unit from a ThinWire Ethernet
Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the System Unit from a Standard Ethernet
Transceiver Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting Systems Into a DSSI VAXcluster Configuration . . . .

3–2
3–4
3–6
3–8
3–10
3–11
3–11
3–12
3–12
3–14
3–16

4 Hardware Options
4.1
4.2
4.3
4.4
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
4.5
4.5.1
4.5.2
4.5.3
4.5.4

Internal Hardware Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
External Hardware Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting a DSSI Expansion Box . . . . . . . . . . . . . . . . . . . . . . .
Connecting a SCSI Expansion Box . . . . . . . . . . . . . . . . . . . . . . . .
Guidelines for Connecting Expansion Boxes . . . . . . . . . . . . .
Selecting Available SCSI IDs on the System . . . . . . . . . . . . .
Preparing the System Unit for an Expansion Box . . . . . . . . .
Connecting the SCSI Expansion Box . . . . . . . . . . . . . . . . . . .
Checking Expansion Box Connections . . . . . . . . . . . . . . . . . .
Connecting Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting Peripherals to a DEC423 MMJ Port . . . . . . . . . .
Connecting a Peripheral to the Asynchronous Modem Control
Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting Peripherals to an Optional Asynchronous
Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting Peripherals to an Optional Synchronous Port . . .

4–1
4–4
4–4
4–4
4–5
4–6
4–6
4–7
4–11
4–12
4–12
4–14
4–18
4–22

A Associated and Related Documents
A.1
A.2

Associated Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–1
A–2

B Removable Storage Media
B.1
B.1.1
B.1.2
B.1.3
B.2
B.2.1
B.2.2
B.3
B.3.1
B.3.2
B.4

Tape Cartridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Labeling a Tape Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . .
Writing to and Write-Protecting Tape Cartridges . . . . . . . . . .
Handling and Storing Tape Cartridges . . . . . . . . . . . . . . . . .
Quarter-Inch Cartridge (QIC) Tapes . . . . . . . . . . . . . . . . . . . . . .
Guidelines for Using QIC Tapes . . . . . . . . . . . . . . . . . . . . . . .
Setting the QIC Tape Write-Protect Switch . . . . . . . . . . . . . .
Cassette Tapes (DAT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Guidelines for Using Cassette Tapes . . . . . . . . . . . . . . . . . . .
Setting the Cassette Tape Write-Protect Switch . . . . . . . . . . .
Compact Discs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B–1
B–3
B–4
B–4
B–6
B–7
B–7
B–9
B–10
B–10
B–12

C Programming Parameters for DSSI Devices
C.1
C.2
C.3
C.3.1
C.3.2
C.3.3
C.3.4
C.3.5
C.3.6

DSSI Device Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How VMS Uses the DSSI Device Parameters . . . . . . . . . . . . . . .
Examining and Setting DSSI Device Parameters . . . . . . . . . . . . .
Entering the DUP Driver Utility . . . . . . . . . . . . . . . . . . . . . .
Setting the Allocation Class . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Unit Number . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Node Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the System ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exiting the DUP Server Utility . . . . . . . . . . . . . . . . . . . . . . .

C–2
C–4
C–6
C–7
C–7
C–8
C–9
C–9
C–10

Glossary
Index

Examples
4–1
4–2
4–3

Checking Q–bus Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking DSSI Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking SCSI Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4–11
4–11
4–12

VAX 4000 Model 100A Ports, Controls, and LEDs . . . . . . . . .
VAX 4000 Model 100A Expansion Ports . . . . . . . . . . . . . . . . .
System Unit Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessing Removable Media . . . . . . . . . . . . . . . . . . . . . . . . . .
TZ30 Tape Drive Controls and LEDs . . . . . . . . . . . . . . . . . . .
Inserting a Tape Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing a Tape Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . .
TZK10 Eject Button and LED . . . . . . . . . . . . . . . . . . . . . . . .
Inserting a QIC Tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing a QIC Tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TLZ06 LEDs, Cassette Slot, and Unload Button . . . . . . . . . .
Inserting a Cassette Tape . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing a Cassette Tape . . . . . . . . . . . . . . . . . . . . . . . . . . .
RRD42 Compact Disc Drive Front Panel . . . . . . . . . . . . . . . .
Compact Disc Caddy Protective Film . . . . . . . . . . . . . . . . . . .
Opening Disc Caddy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inserting Disc Into Caddy . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inserting Caddy with Disc into RRD42 . . . . . . . . . . . . . . . . .
Removing Caddy with Disc from RRD42 . . . . . . . . . . . . . . . .
Removing Caddy Manually . . . . . . . . . . . . . . . . . . . . . . . . . .
Network Select Switch Positions . . . . . . . . . . . . . . . . . . . . . .
Connecting the ThinWire Ethernet Cable to the
T-Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the ThinWire Ethernet Cable to the System
Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the System Unit to a DECconnect Faceplate . . . .
Connecting a Transceiver Cable to the System Unit . . . . . . .
Disconnecting a ThinWire Ethernet Cable from the System
Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disconnecting a Transceiver Cable from the System Unit . . .

1–2
1–4
1–6
2–2
2–4
2–9
2–11
2–13
2–15
2–17
2–18
2–21
2–23
2–25
2–26
2–27
2–28
2–29
2–30
2–31
3–3

Figures
1–1
1–2
1–3
2–1
2–2
2–3
2–4
2–5
2–6
2–7
2–8
2–9
2–10
2–11
2–12
2–13
2–14
2–15
2–16
2–17
3–1
3–2
3–3
3–4
3–5
3–6
3–7

3–4
3–5
3–7
3–9
3–13
3–15

3–8
3–9
4–1
4–2
4–3
4–4
4–5
4–6
4–7
4–8
B–1
B–2
B–3
B–4
B–5
B–6
B–7
B–8
C–1
C–2

Connecting a DSSI Cable to the System Unit . . . . . . . . . . . .
Connecting Systems Into a VAXcluster . . . . . . . . . . . . . . . . .
Removing the SCSI Terminator from the System Unit . . . . .
Connecting the SCSI Cable to the System Unit . . . . . . . . . . .
Connecting a Peripheral to MMJ Port 1 . . . . . . . . . . . . . . . .
Connecting a Peripheral to the Asynchronous Modem Control
Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting a Peripheral to the Asynchronous Modem Control
Port Using an EIA-232 to DEC423 Adapter . . . . . . . . . . . . . .
Connecting a Peripheral to Asynchronous Port A . . . . . . . . .
Connecting a Peripheral to Asynchronous Port A
(DHW42-CA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the Cable to Synchronous Port 0 . . . . . . . . . . . . .
CompacTape Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Labeling the Tape Cartridge . . . . . . . . . . . . . . . . . . . . . . . . .
Write-Protect Switch Positions . . . . . . . . . . . . . . . . . . . . . . . .
QIC Tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
QIC Tape Write-Protect Switch . . . . . . . . . . . . . . . . . . . . . . .
TLZ Cassette Tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Write-Protect Switch on the TLZ04 Cassette
Tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compact Disc and Caddy . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the DSSI Node ID . . . . . . . . . . . . . . . . . . . . . . . . . . .
VMS Operating System Requires Unique Unit Numbers for
DSSI Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–17
3–18
4–9
4–10
4–13
4–15
4–17
4–19
4–21
4–23
B–2
B–3
B–5
B–6
B–8
B–9
B–11
B–12
C–3
C–5

Tables
1–1
2–1
2–2
2–3
2–4
4–1
B–1
B–2
B–3
B–4

Terminal Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TZ30 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TZ30 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TZK10 Eject Button and LED Functions . . . . . . . . . . . . . . . .
TLZ06 LED Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interface Standards and Cable Part Numbers . . . . . . . . . . . .
Noninitialized Cartridge Compatibility . . . . . . . . . . . . . . . . .
Initialized Cartridge Compatibility . . . . . . . . . . . . . . . . . . . .
TZK10 Cartridge Compatibility . . . . . . . . . . . . . . . . . . . . . . .
TLZ06 Cartridge Compatibility . . . . . . . . . . . . . . . . . . . . . . .

1–5
2–5
2–6
2–12
2–19
4–2
B–2
B–2
B–6
B–9
vii

C–1

viii

RF31T/RF35/RF36 DSSI ID Jumper Combinations . . . . . . . .

C–4

Preface
This manual describes how to operate the VAX 4000 Model 100A. It also
contains information on using software storage devices, connecting the system
to a network, and connecting hardware options to the system.

Audience
This manual is intended for anyone using a VAX 4000 Model 100A. It is
written for both experienced and inexperienced users.

Structure of This Manual
This manual is divided into four chapters, two appendixes, a glossary, and an
index:
•

Chapter 1 describes the Model 100A system units.

•

Chapter 2 describes how to use the software storage and loading devices
that are internal to the system.

•

Chapter 3 describes how to connect the system to a network.

•

Chapter 4 describes how to connect hardware options to the system.

•

Appendix A gives the list of associated and related documents.

•

Appendix B describes how to handle and care for removable software
storage media.

•

Appendix C describes how DSSI devices are programmed.

•

The glossary defines some of the technical terms used in this manual.

Additional Information
See Appendix A for the list of associated and related documents.

Conventions
The following conventions are used in this manual:

Convention

Description

MONOSPACE

Text displayed on the screen is shown in monospace type.

boldface type

Boldface type in examples indicates user input. Boldface type in text
indicates the first instance of terms defined either in the text, in the
glossary, or both.

italic type

Italic type emphasizes important information, indicates variables,
and indicates complete titles of manuals.

nn nnn.nnn nn

A space character separates digits in numerals with 5 or more digits.
For example, 10 000 equals ten thousand.

n.nn

A period in numerals signals the decimal point indicator. For
example, 1.75 equals one and three-fourths.

UPPERCASE

Words in uppercase indicate a command.

A lowercase italic n indicates the generic use of a number. For
example, 19nn indicates a 4-digit number in which the last 2 digits
are unknown.

Note

A note contains information of special importance to the reader.

Caution

A caution contains information to prevent damage to the equipment.

Warning

A warning contains information to prevent personal injury.

1
VAX 4000 Model 100A Hardware
This chapter describes the VAX 4000 Model 100A system unit. It covers the
following:
•

The Model 100A system unit

•

Terminal settings

•

System unit icons

1.1 System Unit Description
See Figure 1–1 for the VAX 4000 Model 100A ports, controls, and LEDs.

VAX 4000 Model 100A Hardware 1–1

Figure 1–1 VAX 4000 Model 100A Ports, Controls, and LEDs
1

3
2

12
MLO-010220

Optional Asynchronous Communications Ports A and B—These are the
ports to which you can connect devices or options that use asynchronous
communications. Port A is on the bottom.
Optional Synchronous Communications Ports 0 and 1—These are the ports
to which you can connect the devices or options that use synchronous
communications. Port 0 is on the bottom.

Modified Modular Jack (MMJ) Ports 0, 1, and 3—These are the ports to
which you can connect the user terminal, printer or other devices that
use asynchronous DEC423 data-line-only ports to the system unit. The
console terminal is always connected to port 3.

Asynchronous Modem Control Port (Port 2)—This is the port at which you
can connect a modem, terminal, printer, or other devices that use EIA-232
ports to the system unit.

1–2

Halt Button—This button halts the system and returns it from the
operating system to console mode.

VAX 4000 Model 100A Hardware

Break/Enable Switch and LED—When the break/enable switch is in the up
position, you can halt the system by pressing the break key on the console
terminal keyboard. When the break/enable switch is in the up position, the
LED is on. When the break/enable switch is in the down position, the LED
is off.

Diagnostic LEDs—The diagnostic LEDs (status LED display) indicate
system and test status, and error conditions.

Standard Ethernet Port—This is the port to which standard Ethernet
connects to the system unit.

Network Select Switch—This switch selects either ThinWire™ or standard
Ethernet connection.

The system uses standard Ethernet when the network select switch is
in the left-hand position. The system uses ThinWire Ethernet when the
network select switch is in the right-hand position.
ThinWire Ethernet Port—This is the port to which ThinWire Ethernet
connects to the system unit.
System ac Power—The ac power cord plugs in here.
On/Off Switch—This switch turns the system unit on or off. To turn the
system on, set the on/off switch to the on ( | ) position. To turn the system
off, set the on/off switch to the off (O) position.

VAX 4000 Model 100A Hardware 1–3

Figure 1–2 shows the expansion ports on the VAX 4000 Model 100A.
Figure 1–2 VAX 4000 Model 100A Expansion Ports
1

3
2

4
MLO-010221

DSSI ports—These ports enable connection of external DSSI devices to the
system and the building of a DSSI-based VAXcluster.
Q–bus port—This is a port through which the external Q–bus expander is
connected to the computer system.

Q–bus port—This is a port through which the external Q–bus expander is
connected to the computer system.

1–4

SCSI port—This is the port to which small computer system interface
(SCSI) storage devices connect to the system unit. The SCSI terminator is
installed on this port when the unit is shipped.

VAX 4000 Model 100A Hardware

1.2 Terminal Settings
Terminals must have the settings shown in Table 1–1 to communicate with the
system unit on port 3:
Table 1–1 Terminal Settings
Feature

Setting

Terminal mode

VTnnn-7bit

Transmit speed

9600 baud

Receive speed

receive = transmit

Character format

8 bits, no parity

Stop bits

Comm1 port

DEC-423 (data-leads-only)

See the terminal documentation for more information on setting up the
terminal.

VAX 4000 Model 100A Hardware 1–5

1.3 System Unit Icons
Figure 1–3 shows the system unit icons.
Figure 1–3 System Unit Icons

8
MLO-009281

This icon indicates optional asynchronous communications port A. A
similar icon indicates the optional asynchronous communications port B.
This icon indicates optional synchronous communications port 0. A similar
icon indicates the optional asynchronous communications port 1.

This icon identifies the SCSI port.

This icon identifies a DEC423 MMJ port 0. Similar icons indicate MMJ
ports 1 and 3.

This icon identifies the asynchronous modem control port (port 2).

This icon identifies the halt button.

1–6

This icon identifies the status LED display.
This icon identifies the standard Ethernet port, the network select switch,
and the ThinWire Ethernet port.

VAX 4000 Model 100A Hardware

2
Internal System Devices
This chapter describes how to access and operate the internal devices that are
options of the system. The system can contain the following optional devices:
•

TZ30 tape drive, bottom shelf only

•

TZK10 quarter-inch cartridge (QIC) tape drive, bottom shelf only

•

TLZ06 cassette tape drive, bottom shelf only

•

RRD42 compact disc drive, bottom shelf only

•

RF3x disk drives, top shelf only

This chapter also gives information on the following devices:
•

Cleaning device drive heads

•

System disk
Note
Appendix B contains information on the care and handling of the media
types for each of the removable media devices. It also gives information
on setting the write-protect switches on the diskettes and tapes.

Internal System Devices 2–1

2.1 Accessing the Removable Media System Devices
To access the system devices, follow these steps:
1. Position the system unit so that the front of it is facing you.
2. Open the cover by pushing it and then releasing it, as shown in Figure 2–1.
Close the cover when you are not using the system devices.
Figure 2–1 Accessing Removable Media

MLO-010222

2–2 Internal System Devices

2.2 TZ30 Tape Drive
The TZ30 uses CompacTape™ or CompacTape II cartridges that contain
magnetic tape on a single reel. When you insert the tape cartridge into the
drive and load it, the tape is automatically threaded onto a take-up reel inside
the drive.

2.2.1 TZ30 Controls and LEDs
Figure 2–2 shows the location of the controls and LEDs on the TZ30 tape drive.
Table 2–1 explains the functions of the TZ30 controls. Table 2–2 explains the
functions of the TZ30 LEDs and beeper.

Internal System Devices 2–3

Figure 2–2 TZ30 Tape Drive Controls and LEDs

1
2
3
4
5
MLO-010223

Operate Lever
Write-Protect LED (Red)

Tape-in-Use LED (Yellow)

Operate-Lever LED (Green)

Unload Button

2–4 Internal System Devices

Table 2–1 TZ30 Controls
Control

Function

Unload button

The unload button rewinds and disengages the tape from the takeup reel inside the TZ30. The tape must be completely rewound and
unloaded into the tape cartridge before you can remove the tape
cartridge from the drive. The tape is fully unloaded when the operate
lever LED is on.

Operate lever1

Use the operate lever to lock or unlock a tape cartridge. To insert a
tape cartridge, the operate lever must be in the unlock position. Once
you insert a tape cartridge and the green LED is on, move the operate
lever to the lock position. To eject the tape cartridge from the drive,
(only when the green LED is on or flashing, and after the beeper
sounds momentarily), move the operate lever to the unlock position.

1 When using the operate lever, slide it completely to the lock or unlock position before beginning the next

operation.

Internal System Devices 2–5

Table 2–2 TZ30 LEDs
LED

State

Condition

Operate-lever LED

Safe to use the operate lever.

Off

Do not use the operate lever.

Flashing

The drive has detected a tape cartridge
or calibration error.

Flashing

Tape in use.

Tape loaded and ready to use.

Tape-in-use LED
Write-protect LED

Tape is write-protected.

Off

Tape is write-enabled.

All three LEDs

The power-up diagnostic test is in
progress.

All three LEDs

Flashing

Drive fault.

Beeper

One beep

The TZ30 beeps once when you turn on
the system unit.

Two beeps

Indicate that the tape is unloaded and
you can remove it from the drive.

2–6 Internal System Devices

2.2.2 Inserting and Using a Tape Cartridge
To insert a tape cartridge, see Figure 2–3 and follow these steps:
1. Slide the operate lever to the unlock position.
2. Insert the tape cartridge following these rules:
•

If you insert the tape cartridge more than half-way into the drive, you
must insert the tape cartridge fully.

•

If you want to use another tape cartridge, insert the tape cartridge
fully, unload the tape cartridge, and then remove it.

•

If you cannot insert the tape cartridge into the TZ30, move the operate
lever to the lock position. Then move the operate lever to the unlock
position and reinsert the tape cartridge.

•

Do not push the tape cartridge into the TZ30 while moving the operate
lever between the lock and unlock positions. If you do so, the TZ30
interprets this action as an insertion of the tape cartridge.

The green LED turns on.

Internal System Devices 2–7

3. Move the operate lever to the lock position to lock the tape cartridge in the
drive.
The green LED turns off, and the yellow LED starts to flash, indicating
that the tape is loading. When you load the tape and it is ready for use,
the yellow LED stays on. When the yellow LED stays on and the green
LED stays off, the tape is ready to use.
See the VAX 4000 Model 100A Troubleshooting and Diagnostics Information
manual if errors occur while you are using the TZ30 tape drive.

2–8 Internal System Devices

Figure 2–3 Inserting a Tape Cartridge

95
M
29 B
6M
B

MLO-010224

Operate Lever

Internal System Devices 2–9

2.2.3 Removing a Tape Cartridge from the Drive
To remove a tape cartridge, follow these steps:
Caution
•

The tape must fully rewind before you can remove the tape
cartridge from the tape drive.

•

Remove the tape cartridge from the drive before setting the on/off
switch on the system unit to the off (O) position.

1. Press the unload button (see Figure 2–4) or enter the appropriate system
software command.
The yellow LED flashes as the tape rewinds. Once the tape rewinds
completely, the beeper sounds twice and the green LED turns on.
2. Move the operate lever to the unlock position.
3. Remove the tape cartridge from the tape drive after it ejects.

2–10 Internal System Devices

Figure 2–4 Removing a Tape Cartridge
2

95
M
29 B
6M
B

MLO-010225

Unload Button

Operate Lever

Internal System Devices 2–11

2.3 TZK10 QIC Tape Drive
The TZK10 QIC tape drive is a quarter-inch cartridge, streaming tape drive.
You can use it for archival, data storage and retrieval, and data collection
purposes.

2.3.1 TZK10 Controls and LEDs
The TZK10 QIC tape drive has one dual-color LED (green and amber) and an
eject button. Figure 2–5 shows the positions of the LED and the eject button.
Table 2–3 lists the functions of the LED and the eject button.
Table 2–3 TZK10 Eject Button and LED Functions
Item

State

Eject button
LED

Function
Unlocks the door and partially ejects the QIC tape
from the drive.

Off

Tape is not present or the tape is present, but it has
been dismounted by the software.

Stays green

Tape is loaded.

Flashes green

Tape is in motion.

Stays amber

A fault has occurred.

2.3.2 QIC Tape
You can use several types of QIC tape with the TZK10 QIC tape drive.
Appendix B lists the types of tape that you can use. It also includes
information on the care and handling of these tapes.

2–12 Internal System Devices

Figure 2–5 TZK10 Eject Button and LED

MLO-010226

Eject Button

Dual-Color LED

Internal System Devices 2–13

2.3.3 Inserting a QIC Tape into the TZK10
To insert a QIC tape into the TZK10, follow these steps:
1. Press the eject button to open the door on the front of the TZK10 (see
Figure 2–6). The door partially opens.
2. Open the door fully.
3. Insert the QIC tape into the TZK10. Figure 2–6 shows the correct
orientation of the tape as you insert it. Slide the tape in until you feel
resistance.
4. Close the door.
When you insert the tape correctly, the LED turns green, then flashes green
while the TZK10 makes several whirring sounds. Finally, the sounds stop and
the LED stays green. You can now send operating system commands to the
TZK10 QIC tape drive.
If the LED turns amber, see the VAX 4000 Model 100A Troubleshooting and
Diagnostics Information manual.

2–14 Internal System Devices

Figure 2–6 Inserting a QIC Tape

2
1

MLO-010227

Eject Button

Dual-Color LED

Internal System Devices 2–15

2.3.4 Removing a QIC Tape from the TZK10
To remove a QIC tape from the TZK10, follow these steps:
1. Dismount the QIC tape by entering the commands from the operating
system.
Before you go to step 2, wait until the tape stops moving (the TZK10 stops
whirring) and the LED stops flashing green and stays green.
2. Press the eject button (see Figure 2–7).
3. Open the door fully and remove the tape.
4. Close the door.

2–16 Internal System Devices

Figure 2–7 Removing a QIC Tape

2
1

MLO-010228

Eject Button

Dual-Color LED

Internal System Devices 2–17

2.4 TLZ06 Cassette Tape Drive
The TLZ06 cassette tape drive is a streaming tape drive that uses 4 millimeter
(mm) tape. You can use it for archival, data storage and retrieval, and data
collection purposes. The TLZ06 tape drive design incorporates both digital
data storage (DDS) and digital audio tape (DAT) technologies.

2.4.1 TLZ06 Controls and LEDs
The TLZ06 cassette tape drive has two LEDs (amber and green) and an unload
button. Figure 2–8 shows the positions of the LEDs and the unload button.
The unload button ejects the cassette tape from the TLZ06 cassette tape drive.
Table 2–4 lists the functions of the LEDs.
Appendix B lists the types of tape that you can use. It also includes
information on the care and handling of these tapes.
Figure 2–8 TLZ06 LEDs, Cassette Slot, and Unload Button

4
MLO-009289

Tape/Activity LED
Write-Protect LED

Cassette Slot

Unload Button

2–18 Internal System Devices

Table 2–4 TLZ06 LED Functions
Status

Write-protect LED

Tape/activity LED

No tape loaded

Off

Tape loaded and write
enabled

Off

Tape loaded and write
protected

No drive activity

Signals the cassette’s
write-protect status

Drive activity

Signals the cassette’s
write-protect status

Signals the drive activity

Loading a tape

Off at first, then signals
the cassette’s write-protect
status

Flashes dimly, then stays on.

Unloading a tape

Signals the cassette’s
write-protect status, then
goes off

Flashes dimly, then goes
off. It then signals the drive
activity

Reset sequence

Flashes synchronously
with the tape/activity
LED, then signals the
cassette’s write-protect
status

Flashes synchronously with
the write-protect LED, then
signals the drive activity

Power-up tests and selftests

Flashes, then signals the
cassette’s write-protect
status

Flashes, then signals the
drive activity

Extended self-tests

Signals the cassette’s
write-protect status

Flashes (one to four
minutes), then signals the
drive activity

Test failures

Flashes

Internal System Devices 2–19

2.4.2 Inserting a Cassette Tape into the TLZ06
To insert a cassette tape into the TLZ06, slide the tape in until the TLZ06
draws the tape inside. Figure 2–9 shows the correct orientation of the tape as
you insert it.
When you insert the tape correctly, the tape/activity LED flashes dimly and
then stays on. You can now send operating system commands to the TLZ06
cassette tape drive. If both LED continue to flash, see the VAX 4000 Model
100A Troubleshooting and Diagnostics Information manual.

2–20 Internal System Devices

Figure 2–9 Inserting a Cassette Tape

MLO-009290

Tape/Activity LED

Write-Protect LED

Internal System Devices 2–21

2.4.3 Removing a Cassette Tape from the TLZ06
To remove a cassette tape from the TLZ06, follow these steps:
1. Dismount the cassette tape by entering the commands from the operating
system.
Before you go to step 2, wait until the tape/activity LED stops flashing and
stays on.
2. Press the tape unload button (see Figure 2–10).
3. Remove the cassette tape.

2–22 Internal System Devices

Figure 2–10 Removing a Cassette Tape

MLO-009291

Tape/Activity LED

Tape Unload Button

Internal System Devices 2–23

2.5 RRD42 Compact Disc Drive
The RRD42 compact disc drive is a read-only device that can read information
from 600MB compact discs. The compact disc fits into a supplied caddy, which
you insert into the drive.
Note
You can order additional caddies from your Digital™ Sales
representative. The part number is 30-34512-01.

2.5.1 RRD42 Controls and LEDs
The front panel of the RRD42 compact disc drive has a disc slot, an eject
button, a busy LED, and an emergency eject hole. Figure 2–11 shows the front
panel of the RRD42 compact disc drive.

2–24 Internal System Devices

Figure 2–11 RRD42 Compact Disc Drive Front Panel

1
2
3
4
5
MLO-010229

Volume Control and Headphone Socket—Not used.
Disc Slot.

Busy LED—This LED turns on when data is read from the disc. It flashes
during seek operations.

Eject Button—Press this button to eject the caddy from the RRD42.

Emergency Eject Hole—Use the emergency eject hole to manually eject the
caddy if a power failure occurs (see Section 2.5.3).

Internal System Devices 2–25

2.5.2 Inserting a Compact Disc into the RRD42 Compact Disc Drive
Inserting a compact disc involves two stages:
•

Loading the compact disc into the caddy

•

Inserting the caddy into the RRD42

These stages are described in the following subsections.
Loading the Compact Disc into the Caddy
To load the compact disc into the caddy, follow these steps:
1. If there is a protective film on the center of the caddy lid, as shown in
Figure 2–12, remove it before using the caddy.
Figure 2–12 Compact Disc Caddy Protective Film

2
1

MLO-010770

Disc Caddy

Protective Film

2–26 Internal System Devices

2. Open the lid of the caddy by pressing the tabs on both sides of the caddy,
shown in Figure 2–13. These tabs are each marked with an arrowhead and
the word open.
Figure 2–13 Opening Disc Caddy

1
MLO-010771

Tabs

Internal System Devices 2–27

3. Place the compact disc in the caddy, as shown in Figure 2–14. The disc
label must face upwards.
Figure 2–14 Inserting Disc Into Caddy

MLO-010772

Compact disc
4. Close the lid of the caddy firmly.

2–28 Internal System Devices

Inserting the Caddy into the RRD42
Insert the caddy into the slot on the front of the RRD42 with the disc label
facing upwards, as shown in Figure 2–15. Push the caddy until it is completely
inserted.
Figure 2–15 Inserting Caddy with Disc into RRD42

2
1

MLO-010773

Disc and Disc Caddy

Busy LED
The busy LED then stays on for a few seconds. When the busy LED goes off,
the RRD42 can receive commands and you can read data from the compact
disc.
The RRD42 ejects the compact disc if the disc is upside-down, not properly
inserted in the caddy, or if other conditions prevent it from reading the disc.

Internal System Devices 2–29

2.5.3 Removing the Caddy from the RRD42
Press the eject button on the front, as shown in Figure 2–16 of the RRD42 to
remove the caddy.
Figure 2–16 Removing Caddy with Disc from RRD42

1
2

MLO-010774

Eject Button

Disc and Disc Caddy

If the eject button is disabled by software, you must manually remove the
caddy.

2–30 Internal System Devices

Removing a Caddy Manually
To remove a caddy manually from the RRD42, see Figure 2–17 and follow these
steps:
1. Set the on/off switch on the system unit to the off (O) position.
2. Insert a straightened large paper clip or metal rod, 1.2 millimeters (mm)
(0.047 inches) in diameter and not less than 35 mm (1.38 in.) long, into the
emergency eject hole and push the clip or rod in until the caddy rises.
3. Push the clip or rod hard until the caddy emerges from the slot.
Figure 2–17 Removing Caddy Manually

MLO-010775

Paper Clip—Insert the clip 35 mm into the emergency eject hole.

Disc and Disc Caddy.

Internal System Devices 2–31

2.6 Cleaning Device Drive Heads
This section describes the cleaning recommendations for the drive heads of the
following devices:
•

TZ30 tape drive

•

TZK10 QIC tape drive

•

TLZ06 cassette tape drive

The heads are the components of the drives that read data from and write data
to the media. Digital recommends that, when cleaning the heads, you use the
following Digital-supplied cleaning kits:
•

TZ30—Use the TKXX-HC head cleaning kit.

•

TZK10—Use the TZK1X-HA head cleaning kit.

•

TLZ06—Use the TLZ04-HA head cleaning kit.

To clean the heads, follow the instructions supplied with the cleaning kit.
Digital recommends that you clean the heads of the TZ30 and TZK10 drives
after approximately 8 hours of use. Digital recommends that you clean the
heads of the TLZ06 drive every two weeks, or after 50 hours of use. You should
also clean the drive heads if you encounter problems reading or writing data.
The following factors affect the cleaning interval:
•

Frequency of use

•

Quality of the tape

•

Quality of the environment

2–32 Internal System Devices

2.7 System Disk
The system unit contains at least one hard disk. You cannot physically access
the hard disk. This hard disk, called the system disk, holds the factory
installed software (FIS). FIS is a VMS™ operating system, which is installed
before the system is shipped. You can use an operating system stored in
a different location if you prefer, but VMS version 5.5-2HW or later is a
mandatory. See the VMS Factory Installed Software User Guide for more
information on using VMS FIS.

Internal System Devices 2–33

3
Network Information
This chapter describes how to connect the system unit to a network and how to
disconnect it from a network. It includes information on the following tasks:
•

Selecting the Ethernet type

•

Connecting the system unit to a ThinWire Ethernet network

•

Connecting the system unit to a standard Ethernet network

•

Connecting the system unit to a DECconnect™ faceplate

•

Testing the Ethernet installation

•

Completing the Ethernet installation

•

Removing the system unit from a network

This chapter may contain some terms that are unfamiliar to you. These terms
are defined in the glossary.
If you have never connected a computer to an Ethernet network, you may
need help from a system manager or a network coordinator. If a system
manager or network coordinator is not available, contact your Digital Services
representative.
Caution
Disconnecting Ethernet cables and terminators from the T-connectors
on active Ethernet networks disrupts local network communications.

Network Information 3–1

3.1 Selecting the Ethernet Type
You can connect the system unit to either a ThinWire Ethernet or a standard
Ethernet network. Before starting to connect the system unit to the network,
ask the network coordinator to tell you which network type to use with the
system.
The system unit has a network select switch that you must set depending on
which Ethernet type you want to use. When you know which Ethernet type
you want to use, set the network select switch as follows:
1. Set the system unit on/off switch to the off (O) position.
2. Set the network select switch to the correct position:
•

If you are using ThinWire Ethernet, slide the network select switch to
the right-hand position (see Figure 3–1).

•

If you are using standard Ethernet, slide the network select switch to
the left-hand position (see Figure 3–1).

Go to Section 3.4 if you are connecting the system to a standard Ethernet
network.

3–2 Network Information

Figure 3–1 Network Select Switch Positions

3
2

MLO-010776

Standard Ethernet Switch Position

ThinWire Ethernet Switch Position
Note: For graphic clarity, the SCSI terminator is not shown.

Network Information 3–3

3.2 Connecting the System Unit to a ThinWire Ethernet
Network
To connect the system unit to a ThinWire Ethernet cable, follow these steps:
1. If the ThinWire Ethernet cable is already assembled, remove the ThinWire
Ethernet T-connector and terminators from the system and connect the
cable (see Figure 3–3). Go to Section 3.5 if you are not connecting the
system to a DECconnect faceplate.
2. If the system unit is the first or last system on the ThinWire Ethernet
cable, remove one terminator from the T-connector on the back of the
system unit. If the system unit is not the first or last system on the
ThinWire Ethernet cable, remove both terminators.
3. Attach the ThinWire Ethernet cable to one side of the T-connector if you
are connecting the system to the end of the ThinWire Ethernet cable (see
Figure 3–2 A). Attach the ThinWire Ethernet cables to both sides of the
T-connector if you are connecting the system to the middle of the ThinWire
Ethernet cable (Figure 3–2 B).
Figure 3–2 Connecting the ThinWire Ethernet Cable to the T-Connector

MLO-010777

Terminator
T-Connector

ThinWire Ethernet Cable Connector

3–4 Network Information

Go to Section 3.5 if you are not connecting the system to a DECconnect
faceplate.
Figure 3–3 Connecting the ThinWire Ethernet Cable to the System Unit

3
2

1
3

2
MLO-010778

Terminator
T-Connector

ThinWire Ethernet Cable

Network Information 3–5

3.3 Connecting the System Unit to a DECconnect Faceplate
If DECconnect products are installed, a DECconnect faceplate may be on the
wall. You can connect VAX systems to DECconnect faceplates using different
methods. You can connect either a single VAX system or connect several VAX
systems in series. Ask the network coordinator for advice on how to connect
the system to the DECconnect faceplate.
If you want to connect only one system to the faceplate, see Figure 3–4 and
follow these steps:
1. Remove the ThinWire Ethernet terminator from one side of the T-connector.
2. Attach the ThinWire Ethernet cable to one side of the T-connector.
3. Attach the other end of the ThinWire Ethernet cable to the DECconnect
faceplate.
Go to Section 3.5 for information on how to test the network installation.

3–6 Network Information

Figure 3–4 Connecting the System Unit to a DECconnect Faceplate

3
2

2
MLO-010779

DECconnect Faceplate

ThinWire Ethernet Cable

Network Information 3–7

3.4 Connecting the System Unit to a Standard Ethernet
Network
To connect the system unit to a standard Ethernet network, follow these steps:
1. Attach the 15-pin connector on the standard Ethernet transceiver cable to
the back of the system unit. See Figure 3–5.
2. Move the sliding lock on the standard Ethernet connector to the left,
securing the standard Ethernet connection.
3. Set the Network Select Switch to the correct position. See Section 3.1.

3–8 Network Information

Figure 3–5 Connecting a Transceiver Cable to the System Unit

3
2

MLO-010780

Standard Ethernet Transceiver Cable
Sliding Lock

Network Select Switch
Note: For graphic clarity, the SCSI terminator is not shown.

Network Information 3–9

3.5 Testing the Ethernet Installation
When you complete the network installation procedure, follow these steps to
test the installation:
1. Set the system unit on/off switch to the on ( | ) position.
2. Enter the following command to test the installation:
Run test 5F with the first parameter set to 0 (default) to test the SGEC chip
using internal loopback mode. An example of success is shown by the console
prompt returning without any messages as shown in the next two examples.
>>>T 5F
>>>
Another example of test success is shown with test 5F first parameter set
to 1 to test the SGEC chip using external loopback mode. This requires a
terminator on the selected ethernet port, either thin wire or thick wire. If the
test is run while connected to an active net, it may fail.
>>>T 5F
>>>
If the device fails the self-test, the system responds with a display similar to
the following:
>>>T 5F
? Test_Subtest_5F_18 Loop_Subtest=0E Err_Type=FF DE_SGEC.lis
Vec=010C Prev_Errs=0000 P1=00000001 P2=00000000 P3=827DFF03 P4=00000000
P5=00000000 P6=00000000 P7=00000000 P8=00000001 P9=00000000 P10=00000000
r0=00000054 r1=000082E2 r2=00000001 r3=000082FA r4=00008230 r5=00000040
r6=000082E2 r7=20008000 r8=00008000 r9=20140758 r10=13000001 r11=2014044B
EPC=2005721A dser=0000 cesr=00000000 icsr=01 pcsts=F800 pcctl=FC13
cctl=00000007 bcetsts=03A0 bcedsts=0400 cefsts=00019200 nests=00
mmcdsr=00C6C600 mesr=00006000
>>>
If the device fails, see the VAX 4000 Model 100A Troubleshooting and
Diagnostics Information manual.

3–10 Network Information

3.6 Completing the Ethernet Installation
The network coordinator must complete the installation. You must give the
following information to the network coordinator:
•

A unique node name comprised of a maximum of six alphanumeric
characters
Choose any node name and ask the network coordinator to make sure that
the node name is unique on the network.

•

The system’s Ethernet address
To determine the system’s Ethernet address, follow these steps:
1. Enter the following command at the console prompt:
>>> SHOW ETHERNET
The system displays a response similar to the following:
ETHERNET = 08-00-2B-1A-0B-BB
The alphanumeric string, shown in the form nn-nn-nn-nn-nn-nn, is the
Ethernet address.
2. Write down the Ethernet address and give it to the network
coordinator.

3.6.1 If the Network Installation Fails
If the network installation fails, contact your Digital Services representative.

Network Information 3–11

3.7 Removing the System Unit from a Network
The following subsections describe how to remove the system unit from a
network.
Note
Before removing the system unit from a network:
•

Get the approval of the network coordinator.

•

See the operating system documentation for information on the
shutdown procedures before stopping or turning off the system.

•

If the system is the server in a network, do not turn off, halt or
restart the system without notifying the other network members.

3.7.1 Removing the System Unit from a ThinWire Ethernet Cable
To remove the system unit from a ThinWire Ethernet cable, follow these steps:
1. Set the on/off switch on the back of the system unit to the off (O) position.
Caution
Disconnecting the ThinWire Ethernet terminator or the ThinWire
Ethernet cable connectors from the T-connector may cause disruptions
to network communications.

2. Disconnect the center of the T-connector from the ThinWire Ethernet
connector on the back of the system unit. See Figure 3–6, A.
3. Add the terminator to the T-connector and reinstall the T-connector. See
Figure 3–6, B.

3–12 Network Information

Figure 3–6 Disconnecting a ThinWire Ethernet Cable from the System Unit

3
2

1
MLO-010781

T-Connector
ThinWire Ethernet Cable

Terminator added

Network Information 3–13

3.7.2 Removing the System Unit from a Standard Ethernet Transceiver
Cable
To remove the system unit from a standard Ethernet transceiver cable, follow
these steps:
1. Set the on/off switch on the back of the system unit to the off (O) position.
2. Push the sliding lock to the right (see Figure 3–7).
3. Disconnect the transceiver cable from the standard Ethernet connector on
the back of the system unit (see Figure 3–7).
4. Set the network select switch.

3–14 Network Information

Figure 3–7 Disconnecting a Transceiver Cable from the System Unit

3
2

MLO-010782

Sliding Lock
Standard Ethernet Transceiver Cable

Network Select Switch

Network Information 3–15

3.8 Connecting Systems Into a DSSI VAXcluster
Configuration
Note
A DSSI VAXcluster configuration is supported only under VMS Version
5.5-1HN or later.

A DSSI VAXcluster configuration consists of two or more systems configured
as a DSSI VAXcluster and sharing their DSSI devices through a Digital
Storage System Interconnect (DSSI) bus. See Figure 3–8 and Figure 3–9 for
connections. Each system can have direct access to any of the devices on the
DSSI bus, including a shared system disk.
The simplest DSSI VAXcluster configuration, a two-system configuration, can
let one system disk be used as the system disk for both systems. Although the
system disk resides in one system, both systems have equal access to it and to
any other DSSI storage device in either system.
A DSSI device, such as the RF35, has a built-in DSSI VAXcluster capability
that can dynamically serve two or more systems. DSSI adapters, embedded in
the system CPU, let you extend a DSSI bus by connecting it to another system.
Using an external DSSI cable, DSSI-based systems can be connected to form a
DSSI VAXcluster configuration.
The benefits of a DSSI VAXcluster configuration:
•

VAXcluster features such as shared data across systems and satellite nodes
are available to you.

•

Higher system availability — If one of the systems is unavailable due to a
system malfunction, the satellites booted through it can continue operating
through the other system.

If one system fails, all satellite nodes booted through that system lose
connections to the system disk. Each satellite knows that the system disk
is 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 can be added to each
boot node. If one system disk fails, the other system disk continues to serve
one system and the satellite nodes booted through it. As in any VAXcluster, a
second system disk improves availability but increases system management
tasks.

3–16 Network Information

Figure 3–8 shows how to attach a DSSI cable. Figure 3–9 shows a typical
DSSI connection between the VAX 4000 Model 100A and another VAX 4000
system.
Figure 3–8 Connecting a DSSI Cable to the System Unit

3
2

MLO-010783

Remove the DSSI terminator.

Insert the DSSI cable and tighten the two screws.

Network Information 3–17

Figure 3–9 Connecting Systems Into a VAXcluster

3
2

2 1 0

MLO-010784

DSSI Cable (BC21M–09)

3–18 Network Information

4
Hardware Options
This chapter describes the hardware options of the VAX 4000 Model 100A. It
also describes how to connect the external hardware options to the system. It
includes information on the following topics:
•

Internal hardware options

•

External hardware options

•

Connecting a SCSI expansion box

•

Connecting peripherals

4.1 Internal Hardware Options
The system supports the following internal hardware options:
•

MS44L-BC 16MB set (4XMS44L-AA) and MS44-DC 64MB set (4XMS44CA) memory modules—The Model 100A system does not have any memory
on the system board. It uses only MS44L-BC and MS44-DC memory
module bundles. You can increase the memory capacity of the Model 100A
system up to a maximum of 128MB in 16MB or 64MB increments using a
maximum of two memory sets.

•

Synchronous communications options—The system supports the DSW42AA synchronous communications option. This communications option
provides two synchronous communications ports and allows you to connect
the system to a peripheral that uses an EIA-232 (V.24) 25-pin connector.
You can use other interface standards with this option if you order different
cables. Table 4–1 lists each interface standard and the part number of the
corresponding cable.

Hardware Options 4–1

Table 4–1 Interface Standards and Cable Part Numbers
Interface Standard

Cable Part Number

Extension Cable Part Number

EIA-232/V.24

BC19D-02

BC22F-nn3

EIA-423/V.10

BC19E-022

BC55D-nn4

EIA-422/V.11

BC19B-022

BC55D-nn4

1 Supplied with the DSW42-AA option.
2 Optional cable, order separately.
3 Optional cable, order separately. The value of nn represents the cable length in feet (10, 25, or
50).
4 Optional cable, order separately. The value of nn represents the cable length in feet (25 or 50).

The BC19x-02 cables listed in Table 4–1 are 2-foot cables; extension cables
are also available, but you must order them separately. Contact your
Digital Sales representative for information on ordering any of the different
cables that support these interface standards.
•

Asynchronous communications options—The system supports three
different asynchronous communications options. These options are as
follows:
–

DHW42-AA—This asynchronous option provides eight asynchronous
DEC423 data-line-only communications lines through one system port.
You can connect up to eight peripherals using the MMJ ports on the
harmonica (H3104) that connects to the option cable (BC16C-10).

–

DHW42-BA—This option is the same as the DHW42-AA, but provides
16 asynchronous DEC423 data-line-only communications lines through
two system ports. You can connect up to 16 peripherals using the MMJ
ports on two harmonicas (H3104) that connect to the option cables
(BC16C-10).

Use the following cables instead of the BC16C-10 cable if you require
longer cable lengths: BC16C-25, BC16C-50, BC16C-A0, or BC16C-B5.
Use the following cables between the harmonica (H3104) and the DEC423
peripheral: BC16E-10, BC16E-25, or BC16E-50.
–

DHW42-CA—This asynchronous option provides eight asynchronous
EIA-232 modem control lines through two system ports using two
breakout cables (BC29J-06).

–

DHW42-UP—This upgrade option converts a DHW42-AA asynchronous
option to a DHW42-BA option.

4–2 Hardware Options

Attach one of the following cables to a connector on the breakout cable if
you require longer cable lengths: BC22F-10, BC22F-25, or BC22F-50. The
peripheral you are using may require a null-modem extension cable. See
the peripheral documentation or contact your Digital Sales representative
for information on the correct null-modem cable to use.
•

DSSI hard disk drives, including the RF31T, the RF35, and the RF36.

•

SCSI storage devices, including the following removable devices:

•

–

TLZ06 tape drive

–

TZK10 (QIC) tape drive

–

TZ30 tape drive

–

RRD42 compact disc drive

Digital Storage Systems Interconnect (DSSI)– The KA52 CPU module
contains one DSSI bus connector that is dedicated to the mass storage
devices in your system.
A DSSI connector provides a path to the DSSI bus through which the CPU
can communicate with DSSI devices.
The DSSI bus has the following characteristics.
–

A 4-Mbytes-per-second bandwidth

–

Up to eight nodes (one interface and up to seven additional DSSI
Devices (RF-series ISEs, TF85s, and adapters))

–

Eight data lines

–

One parity line

–

Eight control lines

DSSI architecture improves system performance as follows.
–

Each device queues requests and each performs seek ordering.

–

Mass storage devices can act independently, since each device contains
its own controller. Several devices can work simultaneously.

An ISE can maintain connection to more than one DSSI interface. That feature
allows ISEs to be shared by multiple CPUs in a DSSI VAXcluster configuration.
For more information about DSSI VAXcluster configurations and the
advantages of such configurations, see the section on DSSI VAXcluster
capability in your system Operation manual.

Hardware Options 4–3

4.2 External Hardware Options
The following sections contain information on connecting the external hardware
options to the system unit. The external hardware options for the VAX 4000
Model 100A include the following:
•

DSSI expansion box

•

SCSI expansion box

•

Q–bus expansion box

•

Printers, terminals, modems, and other devices that use asynchronous or
synchronous connectors

Your Digital Sales representative can give you information on how to order
a full range of Digital DSSI and Q–bus expansion boxes, printers, terminals,
modems, and other devices that are compatible with the VAX 4000 Model 100A
system.

4.3 Connecting a DSSI Expansion Box
To attach a DSSI expansion box, see Figure 3–8. (Figure 3–8 shows how to
attach a DSSI cable from either a DSSI VAXcluster or a DSSI expansion box.)

4.4 Connecting a SCSI Expansion Box
The following subsections contain information on:
•

Guidelines for connecting expansion boxes

•

Selecting available SCSI IDs on the system

•

Preparing the system unit for an expansion box

•

Connecting the SCSI expansion box

•

Checking the expansion box connections for Q–bus, DSSI, and SCSI

4–4 Hardware Options

4.4.1 Guidelines for Connecting Expansion Boxes
Use the following guidelines when connecting expansion boxes:
•

The recommended maximum length of the SCSI cables (internal length
plus external length) is 19.6 feet (6 metres).

•

Each device in the expansion boxes and the system box must have a unique
SCSI ID.

•

You must attach the 50-pin terminator that comes with the expansion box
to an unused SCSI connector on the back of an expansion box.

•

Plug the expansion boxes into the same grounded power strip or electrical
circuit as the system.

•

Do not connect more than two tape drive devices.
Caution
–

Some expansion boxes are restricted to either 110 V ac or 220
V ac operation. Make sure that the voltage requirement of the
expansion box used is compatible with the supply voltage.

–

Turn on the expansion boxes before you turn on the system
unit. This procedure ensures that the device in each expansion
box is ready for use and that the system firmware includes the
device in the configuration display.

–

Do not connect or disconnect SCSI expansion boxes while
the system is turned on. Doing so can cause damage to the
equipment or corrupt data.

–

Digital cannot guarantee the correct operation of any SCSI
bus that uses cable assemblies not supplied by Digital or not
configured in accordance with these guidelines.

Hardware Options 4–5

4.4.2 Selecting Available SCSI IDs on the System
You must identify which SCSI IDs are available before connecting an expansion
box. Use the configuration display to determine this information. To see the
configuration display, enter the following command:
>>> SHOW CONFIG
The system displays information similar to the following:
KA52-A Vn.n, VMB 2.14
08-00-2B-2B-16-91
80MB
TstNbr DevNam
------ -------0
CPU_BD
A8
MEMORY
E4
DZ
E0
SCSI
5F
5C
0
E8

NI
DSSI
QBUS
COMM

ASYNC

Info
-------------------------OK
OK
OK
OK
3-RZ24L 6-Adapter 7-RRD42
OK
OK
OK
OK
DSW41/42 2 CHANNEL V3.11-47
OK
DHW41/2 V1.6

The letters OK by the SCSI device indicate that it has passed the power-on
test.

This line shows the SCSI IDs that are occupied by devices on the SCSI bus.
For example, the RZ24 disk drive occupies SCSI ID 3 and the RRD42 drive
occupies SCSI ID 7.
SCSI ID 6 is the default ID for the SCSI bus adapter.

There are eight SCSI IDs, numbered from 0 to 7. Select any SCSI ID that is
not occupied by another device.

4.4.3 Preparing the System Unit for an Expansion Box
To prepare the system unit for an expansion box, follow these steps:
1. Shut down the operating system using the procedure outlined in the
operating system documentation.
2. Set the on/off switch on the system unit to the off (O) position.
3. Remove the SCSI terminator as shown in Figure 4–1.
4–6 Hardware Options

4. Move the terminator to the last open port on the SCSI expansion box.

4.4.4 Connecting the SCSI Expansion Box
Caution
You must complete the procedures outlined in the following sections
before you start the procedure in this section:
•

Section 4.4, Connecting a SCSI Expansion Box

•

Section 4.4.1, Guidelines for Connecting Expansion Boxes

•

Section 4.4.2, Selecting Available SCSI IDs on the System

•

Section 4.4.3, Preparing the System Unit for an Expansion Box

Hardware Options 4–7

Connect the SCSI cable to the system unit and to the expansion box as follows:
1. Set the on/off switches on the system unit and the expansion box to the off
(O) position.
2. Make sure that you have set the correct SCSI ID for each device in the
expansion box. See Section 4.4.2 for information on selecting the available
SCSI IDs.
3. Connect one end of the 50-pin to 50-pin cable, supplied with the expansion
box, to the SCSI port on the system unit. Close the bail lock loops. See
Figure 4–2.
4. Connect the other end of the 50-pin to 50-pin cable to either of the SCSI
ports on the expansion box. Close the bail lock loops.
5. Connect the SCSI terminator to the other SCSI port on the expansion box.
Close the bail lock loops.
6. Connect the power cord to the expansion box.
7. Connect the other end of the power cord to the same grounded power strip
or electrical circuit.
8. Set the on/off switch on the expansion box to the on ( | ) position.
9. Set the on/off switch on the system unit to the on ( | ) position.
10. Check the system to ensure that it recognizes the connection. See
Section 4.4.5 for information on checking expansion box connections.

4–8 Hardware Options

Figure 4–1 Removing the SCSI Terminator from the System Unit

3
2

MLO-010785

Release the bail lock loops.

Remove the terminator.

Hardware Options 4–9

Figure 4–2 Connecting the SCSI Cable to the System Unit

3
2

MLO-010786

SCSI Cable

Bail Lock Loop

4–10 Hardware Options

4.4.5 Checking Expansion Box Connections
Three different kinds of items can be connect to the expansion ports of the VAX
4000 Model 100A system. They are the following:
•

Q–bus

•

DSSI

•

SCSI

Examples 4–1, 4–2, and 4–3 show these types of items that are connected to
the system, both internally and through the expansion ports.

Example 4–1 Checking Q–bus Devices
>>>SHOW QBUS
Scan of Qbus I/O Space
-20001468 (772150) = 0000 RQDX3/KDA50/RRD50/RQC25/KFQSA-DISK
-2000146A (772152) = 0AB0
-20001F40 (777500) = 0020 IPCR
Scan of Qbus Memory Space
-301E0000 to 3021FFFF (07400000 to 10377777)
>>>

Example 4–2 Checking DSSI Devices
>>>SHOW DSSI
DSSI Bus 0 Node 1 (R5WBAA)
-DIA1 (RF35)
DSSI Bus 0 Node 6 (KF72PB)
DSSI Bus 0 Node 7 (*)

Hardware Options 4–11

Example 4–3 Checking SCSI Devices
>>>SHOW SCSI
SCSI Adapter A, SCSI ID 6
-DKA300 (DEC RZ24L)
-DKA700 (DEC RRD42)

If you do not see the names and and IDs of the devices, see the VAX 4000
Model 100A Troubleshooting and Diagnostics Information manual.

4.5 Connecting Peripherals
The following subsections contain information on the following tasks:
•

Connecting peripherals to a DEC423 MMJ port

•

Connecting a peripheral to the asynchronous modem control port (port 2)

•

Connecting peripherals to an optional asynchronous port

•

Connecting peripherals to an optional synchronous port

4.5.1 Connecting Peripherals to a DEC423 MMJ Port
Note
When the system is shipped, MMJ ports 0 and 1 are covered with an
arrow label identifying port 3 as the console port. When port 3 has
been identified, the OPA0 arrow label may be removed.

To connect peripherals that use DEC423 cables (BC16E) to MMJ ports 0, 1, or
3, follow these steps:
1. Set the on/off switch on the peripheral to the off (O) position.
2. Connect one end of the DEC423 cable to either MMJ port 0, 1, or 3 (see
Figure 4–3).
Note
In some countries, the peripheral cable has an earth drain wire.
Connect this earth drain wire to the grounding pillar above MMJ port
1 using the screw provided with the cable.

4–12 Hardware Options

3. Connect the other end of the DEC423 cable to the correct port on the
peripheral.
4. Set the on/off switch on the peripheral to the on ( | ) position.
BC16E cables are available in the following lengths: 10 feet (BC16E-10), 25
feet (BC16E-25), or 50 feet (BC16E-50).
Figure 4–3 Connecting a Peripheral to MMJ Port 1

3
2

MLO-010787

DEC423 Peripheral Cable

Hardware Options 4–13

4.5.2 Connecting a Peripheral to the Asynchronous Modem Control
Port
You can connect peripherals that use EIA-232 connectors to the asynchronous
modem control port (port 2) on the back of the system unit. Alternatively,
the supplied EIA-232 to DEC423 adapter (H8575-A) allows you to connect
peripherals that use DEC423 connectors. To connect a peripheral to the
asynchronous modem control port, follow these steps:
1. If you are connecting a peripheral using EIA-232 cables, follow these
steps:
a. Set the on/off switch on the peripheral to the off (O) position.
b. Connect the 25-pin D-sub connector of the peripheral cable to the
asynchronous modem control port (see Figure 4–4).
c.

If the connector has screws on either side, tighten them using a small
screwdriver.

d. Connect the other end of the peripheral cable to the correct port on the
peripheral.
e.

Set the on/off switch on the peripheral to the on ( | ) position.

EIA-232 cables are available in the following lengths: 10 feet (BC22F10), 25 feet (BC22F-25), or 50 feet (BC22F-50). The peripheral you are
using may require a null-modem extension cable. See the peripheral
documentation or contact your Digital Sales representative for information
on the correct null-modem cable to use.

4–14 Hardware Options

Figure 4–4 Connecting a Peripheral to the Asynchronous Modem Control
Port

3
2

MLO-010788

EIA-232 Connector

Hardware Options 4–15

2. If you are connecting a peripheral using DEC423 cables, follow these
steps:
a. Set the on/off switch on the peripheral to the off (O) position.
b. Connect the EIA-232 to DEC423 adapter to the asynchronous modem
control port (see Figure 4–5).
c.

Tighten the screws on each side of the adapter using a small
screwdriver.

d. Connect the DEC423 cable to the MMJ port on the adapter.
e.

Connect the other end of the DEC423 cable to the correct port on the
peripheral.

Set the on/off switch on the peripheral to the on ( | ) position.

4–16 Hardware Options

Figure 4–5 Connecting a Peripheral to the Asynchronous Modem Control
Port Using an EIA-232 to DEC423 Adapter

3
2

2
MLO-010789

EIA-232 to DEC423 Adapter (H8575-A)

DEC423 MMJ Connector

Hardware Options 4–17

4.5.3 Connecting Peripherals to an Optional Asynchronous Port
There are three asynchronous communications options for the VAX 4000 Model
100A:
•

DHW42-AA—Provides one eight-line data-line-only asynchronous port

•

DHW42-BA—Provides two eight-line data-line-only asynchronous ports

•

DHW42-CA—Provides two four-line asynchronous ports with modem
control

Connecting Peripherals to a DHW42-AA or DHW42-BA Option
If the system has the DHW42-AA or DHW42-BA asynchronous communications
option installed, the system has one or two eight-line data-only asynchronous
ports. You can connect up to eight peripherals to each of these ports using the
H3104 harmonica. Section 4.1 gives more information on the DHW42-AA and
DHW42-BA asynchronous communications options.
To connect a peripheral to an asynchronous port, follow these steps:
1. Set the on/off switch on the peripheral to the off (O) position.
2. Connect the straight connector of the BC16C-10 cable to one of the
asynchronous ports on the back of the system unit (see Figure 4–6).
3. Close the bail lock loops on each side of the connector.
4. Connect the angled connector of the BC16C-10 cable to the H3104
harmonica.
5. Close the bail lock loops on each side of the connector.
6. Connect one end of a DEC423 cable to one of the eight MMJ ports on the
harmonica.
7. Connect the other end of the DEC423 cable to a DEC423 port on the
peripheral.
8. Set the on/off switch on the peripheral to the on ( | ) position.

4–18 Hardware Options

Figure 4–6 Connecting a Peripheral to Asynchronous Port A

2
A

3
2

MLO-010790

Asynchronous Option Cable (BC16C-10)
Bail Lock Loops

Harmonica

Hardware Options 4–19

Connecting Peripherals to a DHW42-CA Option
If the system has the DHW42-CA asynchronous communications option
installed, the system has two four-line asynchronous ports with modem control.
You can connect up to four peripherals to each of these ports using the breakout
cable (BC29J-06) supplied with the option. Section 4.1 gives more information
on the DHW42-CA asynchronous communications option.
To connect a peripheral to an asynchronous port, follow these steps:
1. Set the on/off switch on the peripheral to the off (O) position.
2. Hold in the connector clips on either side of the 50-pin connector of the
breakout cable and connect it to one of the asynchronous ports on the back
of the system unit (see Figure 4–7).
3. Release the clips. The hooks on the port secure the connector in place.
4. Connect one of the four EIA-232 connectors on the breakout cable to the
peripheral.
5. Set the on/off switch on the peripheral to the on ( | ) position.

4–20 Hardware Options

Figure 4–7 Connecting a Peripheral to Asynchronous Port A (DHW42-CA)

3
2

MLO-010791

Asynchronous Option Breakout Cable (BC29J-06)
Connector Clip

Hook

Hardware Options 4–21

4.5.4 Connecting Peripherals to an Optional Synchronous Port
If the system has the DSW42-AA synchronous communications option
installed, the system has two synchronous modem ports. Section 4.1 gives
more information on the DSW42-AA synchronous communications option.
Table 4–1 lists the cables that you can use with the option. The EIA-232/V.24
cable (BC19D-02) is the standard cable shipped with the option. If you are
using a synchronous interface standard other than EIA-232/V.24, use one of the
optional cables listed in Table 4–1.
To connect a peripheral to a synchronous port, follow these steps:
1. Set the on/off switch on the peripheral to the off (O) position.
2. Connect the 50-pin connector of the option cable to one of the synchronous
ports on the back of the system unit (see Figure 4–8).
3. Connect the other connector of the option cable to the communications port
on the peripheral.
4. If the option cable connectors are fitted with screws, secure the connectors
to the ports by tightening them on each side.
5. Set the on/off switch on the peripheral to the on ( | ) position.

4–22 Hardware Options

Figure 4–8 Connecting the Cable to Synchronous Port 0

3
2

MLO-010792

Option Cable (BC19D–02)

Optional Screws (2)

Hardware Options 4–23

A
Associated and Related Documents
This appendix lists the associated and related documents. Some of the
following documents may not be available in every country. Contact your
Digital Sales representative for information on the availability of particular
documents.

A.1 Associated Documents
The following documents contain information on the VAX 4000 Model 100A:
•

VAX 4000 Model 100A Acoustic Noise Declarations (EK–464AA–AN)

•

VAX 4000 Model 100A Customer Letter (EK–501AA–CL)

•

VAX 4000 Model 100A Installation Information (EK–502AA–IN)

•

VAX 4000 Model 100A Operator Information (EK–503AA–OP)

•

VAX 4000 Model 100A Customer Technical Information (EK–504AA–TI)

•

VAX 4000 Model 100A Troubleshooting and Diagnostics Information
(EK–505AA–TS)

VMS Factory Installed Software (FIS) Documentation
The following document contains information on VMS FIS:
•

VMS Factory Installed Software User Guide (EK–A0377–UG)

Associated and Related Documents A–1

A.2 Related Documents
The following documents contain information related to the system:

Internal Removable Media Device Documentation
•

TZ30 Cartridge Tape Drive Subsystem Owner’s Manual (EK–OTZ30–OM)

•

TZK10 Cartridge Tape Drive Owner’s Guide (EK–TZK10–OG)

•

TLZ06 Cassette Tape Drive Owner’s Manual (EK–TLZ06–OM)

•

RRD42 Disc Drive Owner’s Manual (EK–RRD42–OM)

VAX Handbook Series
•

VAX Architecture Handbook (EB–19580–20)

•

VAX Software Handbook (EB–21812–20)

DECconnect System Documentation
•

DECconnect System General Description (EK–DECSY–GD)

•

DECconnect System Requirements Evaluation Workbook (EK–DECSY–EG)

•

DECconnect System Installation and Verification Guide (EK–DECSY–VG)

•

DECconnect System Standalone ThinWire Networks: Planning and
Installation Guide (EK–DECSY–TG)

•

DECconnect System Planning and Configuration Guide (EK–DECSY–CG)

•

Workstations Network Guide (EK–VS315–GD)

A–2 Associated and Related Documents

B
Removable Storage Media
This appendix contains information on the use and storage of the following
media types that are used by the optional removable media storage devices:
•

Tape cartridges

•

QIC tapes

•

Cassette Tapes (DAT)

•

Compact discs

B.1 Tape Cartridges
The CompacTape cartridge (see Figure B–1) is a 10 cm by 10 cm (4 inches by
4 inches) plastic tape cartridge that can be used by TZ30 or TK50 tape drives.
The TZ30 tape drive is supplied with a CompacTape.
The CompacTape II is the successor to the CompacTape cartridge. The
CompacTape II has tighter tolerances than the CompacTape, which support
the higher recording densities of the TK70. The CompacTape and the
CompacTape II (when used with TZ30 and TK50 tape drives) have a capacity
of 95MB.
The TZ30 can use a CompacTape or CompacTape II cartridge that was
originally written by the TK50. If a CompacTape II cartridge written by a
TK70 is used on a TZ30, the TZ30 automatically unloads the tape cartridge,
because the TZ30 cannot read the tape cartridge. The green LED flashes,
indicating a tape error.

Removable Storage Media B–1

Figure B–1 CompacTape Cartridge

MLO-010793

Table B–2 and Table B–1 show the compatibility of CompacTape and
CompacTape II tape cartridges with TZ30, TK50, and TK70 tape drives.

Table B–1 Noninitialized Cartridge Compatibility
CompacTape (TK50-K)

CompacTape II (TK52-K)

TZ30 drive

Yes

TK50 drive

Yes

TK70 drive

Yes

Table B–2 Initialized Cartridge Compatibility
TK50 Drive

TK70 Drive

TZ30 Drive

TZ30 initialized cartridge

R/W2

R/W

TK50 initialized cartridge

R/W

TK70 initialized cartridge

R/W

1 Read only
2 Read/write

3 Not compatible

B–2 Removable Storage Media

B.1.1 Labeling a Tape Cartridge
Always label tape cartridges. There is a slot for the label on the front of the
cartridge. See Figure B–2. The label is visible when the cartridge is in the
drive. Labels or markings on any other part of the cartridge can interfere with
the proper operation of the drive. Do not write on the cartridge with a pen,
pencil, or other marking instrument.
The labels supplied with the CompacTape II cartridges have spaces that mark
the capacity of the tape cartridge. If a TK50 or TZ30 wrote data to the tape
cartridge, mark the 95MB block on the label. If a TK70 wrote data to the tape
cartridge, mark the 296MB block on the label.
If you use TK70 and TZ30 drives, note that the TZ30 is unable to read or write
tapes that have originally been written to by the TK70. However, the TK70
can read tapes written by the TZ30 or the TK50.
Figure B–2 Labeling the Tape Cartridge

MLO-010794

Label Slot

Removable Storage Media B–3

B.1.2 Writing to and Write-Protecting Tape Cartridges
CompacTape and CompacTape II cartridges have a write-protect switch that
prevents an accidental overwrite of data. The system can read information on
the tape regardless of the position of the write-protect switch. However, the
system cannot write data to a write-protected tape.
Write-Protecting a Tape
When you use a tape to install software, set the write-protect switch on the
front of the cartridge to the write-protect position by sliding it left towards
the label until it locks in place (see Figure B–3). An orange rectangle appears
when the write-protect switch locks in the write-protect position.
Writing to a Tape
When you use a tape to make a backup copy or to write data, set the writeprotect switch to the write-enable position. To set the switch to the writeenable position, slide it to the right, away from the label, until the switch locks
in place.

B.1.3 Handling and Storing Tape Cartridges
Inside the cartridge, a 600-foot single reel of magnetic tape stores data.
A plastic tape leader is at the beginning of the tape. Take the following
precautions when handling and storing tapes:
•

Do not touch the exposed surface of the tape.

•

Do not drop the tape cartridge.

•

Allow tape cartridges to reach room temperature before using them.

•

Store the tape where the room temperature is between 10°C and 40°C
(50°F and 104°F) and the humidity is between 20% and 80%.

•

Place the identification label in the slot provided on the tape cartridge.

•

Store the tape cartridge in its plastic cover.

•

Do not expose the tape to direct sunlight, heat, magnetic fields, or X-rays.

B–4 Removable Storage Media

Figure B–3 Write-Protect Switch Positions

1
2

MLO-010795

Write-Protect Switch
Write-Enable Position

Write-Protected Position

Removable Storage Media B–5

B.2 Quarter-Inch Cartridge (QIC) Tapes
The TZK10 cartridge tape drive is shipped with a DC6320 QIC tape, shown in
Figure B–4. You can also use the TZK10 with the DC6525 QIC tape. Table B–3
describes both QIC tapes.
Table B–3 TZK10 Cartridge Compatibility
Cartridge

Capacity

Format

R/W

DC6525

Up to 525MB

QIC-525

R/W

DC6320

Up to 320MB

QIC-320

R/W

Figure B–4 QIC Tape

1
MLO-010796

Write-Protect Switch

B–6 Removable Storage Media

B.2.1 Guidelines for Using QIC Tapes
Use the following guidelines when using QIC tapes:
•

Do not drop the tape.

•

Store the tape where the room temperature is between 10°C and 40°C
(50°F and 104°F) and the humidity is between 20% and 80%.

•

Do not expose the tape to direct sunlight, abrasive particles, or
electromagnetic fields.

•

Store the QIC tape in its protective container, placed on its edge, or
stacked. Do not stack QIC tapes more than five high.

•

Place the identification label in the space provided on the top of the QIC
tape.

B.2.2 Setting the QIC Tape Write-Protect Switch
There is a write-protect switch on one corner of the QIC tape, as shown in
Figure B–5. This switch allows you to write-protect the data on the tape.
After writing data to the QIC tape, write-protect the tape to prevent accidental
erasure or overwriting of that data. Use the write-protect switch as follows:
•

Turn the write-protect switch to the safe (write-protect) position when you
want to protect the data on the tape, or when you want to read or copy
data from the tape.

•

Turn the write-protect switch to the write-enable position when you want
to write data to the tape.

Removable Storage Media B–7

Figure B–5 QIC Tape Write-Protect Switch
2

1
MLO-010797

Write-Protect Switch
Write-Enable Position

Write-Protected Position

B–8 Removable Storage Media

B.3 Cassette Tapes (DAT)
The TLZ06 cassette tape drive is shipped with a 90 meter (m) TLZ06-CA 4 mm
tape. You can also use the TLZ06 with the 60 m TLZ04-CA tape. Table B–4
describes both cassette tapes. See Figure B–6 for the TLZ06 tape and its
write-protect switch.
Table B–4 TLZ06 Cartridge Compatibility
Capacity (Gigabytes)
Cassette

Not Compressed

Compressed

TLZ04-CA

1.3

2.6

TLZ06-CA

2.0

4.0

Figure B–6 TLZ Cassette Tape

l
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Dig ata rage
D to
S

1
MLO-009351

Write-Protect Switch

Removable Storage Media B–9

B.3.1 Guidelines for Using Cassette Tapes
Use the following guidelines when using cassette tapes:
•

Do not drop the tape.

•

Store the tape where the room temperature is between 5°C and 32°C (40°F
and 90°F) and the humidity is between 20% and 60%.

•

Do not expose the tape to direct sunlight, abrasive particles, or
electromagnetic fields.

•

Store the cassette tape in its protective container, placed on its edge, or
stacked. Do not stack cassette tapes more than five high.

B.3.2 Setting the Cassette Tape Write-Protect Switch
There is a write-protect switch on one corner of the cassette tape. This
switch allows you to write-protect the data on the tape. After writing data
to the cassette tape, write-protect the tape to prevent accidental erasure or
overwriting of that data. Use the write-protect switch shown in Figure B–7 as
follows:
•

Use a pen to slide the write-protect switch to the left (write-protect)
position when you want to protect the data on the tape, or when you want
to read or copy data from the tape.

•

Use a pen to slide the write-protect switch to the right (write-enable)
position when you want to write data to the tape.
Caution
Do not use a pencil to slide the write-protect switch. Graphite dust can
damage the cassette tape.

B–10 Removable Storage Media

Figure B–7 Setting the Write-Protect Switch on the TLZ04 Cassette Tape

l
ita
Dig ata rage
D to
S

MLO-009352

Write-Protect Switch
Write-Enable Position

Write-Protected Position

Removable Storage Media B–11

B.4 Compact Discs
When you use the RRD42 compact disc drive, you insert the disc, enclosed in a
caddy, into the drive. You must take the following precautions when handling
discs and caddies:
•

Do not drop the disc or the caddy.

•

The shutter on the caddy, shown in Figure B–8, automatically opens when
you insert it into the RRD42. Do not open the caddy manually or touch the
disc.

Figure B–8 Compact Disc and Caddy
1

MLO-010798

Caddy Shutter
•

Do not disassemble the caddy; it is adjusted for use with the RRD42.

•

Remove the caddy from the RRD42 before moving the system.

•

Do not expose the compact disc or caddy to high humidity, high
temperature, excessive dust, or direct sunlight.

•

Hold the compact disc by its edges; never touch the surface.

•

Use a proper compact disc cleaner to wipe the compact disc if it gets dirty.

B–12 Removable Storage Media

C
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.

On the VAX 4000 Model 100A system, a DSSI daughter card (KFDDA–AA)
provides two DSSI interface adapters between the KA52 CPU and the DSSI
storage devices.
Each of the two adapters on the KFDDA-AA daughter card provides a DSSI
bus that can support up to eight nodes, where the adapter and each DSSI
storage device counts as one node, hence each DSSI adpater can support up to
seven DSSI storage devices (six DSSI storage devices for a two-system DSSI
VAXcluster; five DSSI storage devices for a three-system DSSI VAXcluster
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.

Programming Parameters for DSSI Devices C–1

C.1 DSSI Device Parameters
Seven principal parameters are associated with each DSSI device:
•

Bus Node ID

•

ALLCLASS

•

UNITNUM

•

FORCEUNI

•

NODENAME

•

SYSTEMID

•

DSSI NODE ID

Each of these seven 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
jumpers on disk drive.
A brief description of each parameter follows.
The Bus Node ID parameter is provided by the jumpers on the disks. Each
DSSI bus can support up to eight nodes, 0–7. Each DSSI adapter and each
device count as a node. Hence, in a single-system configuration, a DSSI bus
can support up to seven devices, bus nodes 0–6 (with node 7 reserved for the
adapter); in a two-system DSSI VAXcluster configuration, up to six devices,
0–5 (with nodes 6 and 7 reserved for the adapters); in a three-system DSSI
VAXcluster configuration, up to five devices, 0–4 (with nodes 5, 6, and 7
reserved for the adapters).
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 jumpers on the drives.
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
C–2 Programming Parameters for DSSI Devices

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 jumpers. 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 jumpers.
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.
The SYSTEMID parameter provides a number that uniquely identifies the
device to the operating system. That parameter may need to be modified only
when replacing a device. Only Digital service representatives and licensed
self-maintenance customers should remove devices.
DSSI NODE ID is the unique number held by one DSSI node within one DSSI
bus. See Figure C–1 and Table C–1 for instructions for setting the DSSI Node
ID.
Figure C–1 Setting the DSSI Node ID

Pin 5 3 1
19

MLO-009353

Programming Parameters for DSSI Devices C–3

Table C–1 RF31T/RF35/RF36 DSSI ID Jumper Combinations
DSSI ID

Pin 5

Pin 3

Pin 1

Out

C.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.
Figure C–2 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 integrated
storage elements (ISEs) as having duplicate device names, which is an error,
as all unit numbers must be unique.

C–4 Programming Parameters for DSSI Devices

Figure C–2 VMS Operating System Requires Unique Unit Numbers for DSSI
Devices

Allocation Class=0

Nonzero Allocation Class
(Example: ALLCLASS=1)

R7BUCC$DIA0

$1$DIA0

R7CZZC$DIA1

$1$DIA1

R7ALUC$DIA2

$1$DIA2

R7EB3C$DIA3

$1$DIA3

TFDR1$MIA5

$1$MIA5

R7IDFC$DIA0

$1$DIA0

R7IBZC$DIA1

$1$DIA1

R7IKJC$DIA2

$1$DIA2

R7ID3C$DIA3

$1$DIA3

R7XA4C$DIA4

$1$DIA4

R7QIYC$DIA5

$1$DIA5

R7DA4C$DIA6

$1$DIA6

* Duplicate 0
* Duplicate 1
* Duplicate 2
* Duplicate 3

* 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-007176

Note
You should configure your system to have unique unit numbers even if
you have a standalone system using an allocation class of zero. That
practice will avoid problems with duplicate device names if you later
decide to form a cluster.

Programming Parameters for DSSI Devices C–5

C.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.
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 the 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 | ).
b. Set the Power switch for each unit (both hosts for a dual-host system,
and any expanders for expanded systems) to the on position ( | ).
Wait for the system to display the console prompt (>>>).
2. To display the DSSI devices on embedded DSSI adapters, enter SHOW DSSI
at the console prompt.
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 TF-series tape drive. Devices on bus 0 are listed as
DIA. The embedded DSSI host is identified by an asterisk (*).
>>>SHOW DSSI
DSSI Bus 0 Node 0 (R7ALUC)
-DIA0 (RF73)
DSSI Bus 0 Node 1 (R7EB3C)
-DIA1 (RF73)
DSSI Bus 0 Node 2 (R7EB22)
-DIA2 (RF73)
DSSI Bus 0 Node 5 (TFDR1)
-MIA5 (TF85)
DSSI Bus 0 Node 6 (*)
>>>

C–6 Programming Parameters for DSSI Devices

Note
The DUP driver examples throughout this appendix are for RF-series
ISEs. The displays for the TF-series tape drive differ slightly from the
RF-series displays.

C.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 (<node_number>) PARAMS
where (<node_number>) is the bus node ID (0–6) for the device on the bus.
In the following example, SET HOST/DUP/DSSI 0 PARAMS is entered to start the
DUP driver for the ISE at node 0 of embedded DSSI bus 1.
>>>SET HOST/DUP/DSSI 0 PARAMS
Starting DUP server...
Copyright (c) 1991 Digital Equipment Corporation
PARAMS>

C.3.2 Setting the 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.
This example shows the steps for examining and changing the allocation class
for a specified device. The allocation class is changed from 0 to 2.

Programming Parameters for DSSI Devices C–7

PARAMS>SHOW ALLCLASS
Parameter
Current
Default
Type
Radix
--------- ---------------- ---------------- -------- ----ALLCLASS
0
0
Byte
Dec

PARAMS>SET ALLCLASS 2
PARAMS>SHOW ALLCLASS
Parameter
Current
Default
Type
Radix
--------- ---------------- ---------------- -------- ----ALLCLASS
2
0
Byte
Dec

C.3.3 Setting the 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.
This shows the steps for changing the unit number of a specified device
from 0 to 10.
PARAMS>SHOW UNITNUM
Parameter
Current
Default
Type
Radix
--------- ---------------- ---------------- -------- ----UNITNUM
0
0
Word
Dec

PARAMS>SET UNITNUM 10
PARAMS>SET FORCEUNI 0
PARAMS>SHOW UNITNUM
Parameter
Current
Default
Type
Radix
--------- ---------------- ---------------- -------- ----UNITNUM
10
0
Word
Dec

PARAMS>SHOW FORCEUNI
Parameter
Current
Default
Type
Radix
--------- ---------------- ---------------- -------- ----FORCEUNI
0
1 Boolean
0/1

6. Label the device with its unit number, using the unit number labels
shipped with your system.

C–8 Programming Parameters for DSSI Devices

C.3.4 Setting the 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.
This shows the steps for changing the node name of a specified device from the
factory-supplied name to SYSDSK.
PARAMS>SHOW NODENAME
Parameter
Current
Default
Type
Radix
--------- ---------------- ---------------- -------- ----NODENAME
R7CZZC
RF73
String Ascii

PARAMS>SET NODENAME SYSDSK
PARAMS>SHOW NODENAME
Parameter
Current
Default
Type
Radix
--------- ---------------- ---------------- -------- ----NODENAME
SYSDSK
RF73
String Ascii

C.3.5 Setting the System ID
Note
This parameter is modified only when replacing a device. Only Digital
service representatives and licensed 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 C–9

This shows the steps for changing the system ID of a specified device from
the factory-supplied ID to 1402193310841 (the system ID for the replacement
device is programmed to match that of the original).
PARAMS>SHOW SYSTEMID
Parameter
Current
Default
Type
Radix
--------- ---------------- ---------------- -------- ----SYSTEMID
0402193310841
0000000000000 Quadword
Hex

PARAMS>SET SYSTEMID 1402193310841
PARAMS>SHOW SYSTEMID
Parameter
Current
Default
Type
Radix
--------- ---------------- ---------------- -------- ----SYSTEMID
1402193310841
0000000000000 Quadword
Hex

C.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.
This shows the procedure for saving parameter changes. The controller is
initialized.
PARAMS>WRITE
Changes require controller initialization, ok? [Y/(N)] Y
Stopping DUP server...
>>>
This example shows the DSSI busses for the embedded DSSI adapters after
the unit numbers for the disk devices on bus 0 have been changed from 0, 1,
and 2 to 10, 11, and 12. The bus 0 device names are now DIA10, DIA11, and
DIA12.

C–10 Programming Parameters for DSSI Devices

>>>SHOW DSSI
DSSI Bus 0 Node 0 (SYSDSK)
-DIA10 (RF73)
DSSI Bus 0 Node 1 (R7EB3C)
-DIA11 (RF73)
DSSI Bus 0 Node 2 (R7EB22)
-DIA12 (RF73)
DSSI Bus 0 Node 5 (TFDR1)
-MIA5 (TF85)
DSSI Bus 0 Node 6 (*)
>>>

Note
You must repeat the procedures in this appendix for each device for
which you want to change parameters.

Programming Parameters for DSSI Devices C–11

Glossary
The glossary defines some of the technical terms used in this manual.
backup copy
A copy of data stored on a disk.
backup process
The process of making copies of the data stored on a disk so that you can
recover that data after an accidental loss. You make backup copies on tape
cartridges or on another disk.
binary
A number system that uses two digits: 0 and 1. They are represented in
system circuitry by two voltage levels, and programs are executed in binary
form.
bit
A binary digit; the smallest unit of information in a binary system of notation,
designated as a 0 or a 1.
bus
A channel (a set of wires) along which communication signals in a computer
system travel.
byte
A group of 8 binary digits (bits). A byte is one-quarter of a VAX system
longword.
caddy
The holder for inserting a compact disc into a compact disc drive.
central processing unit
See CPU.
Glossary–1

communications line
A cable along which electrical signals are transmitted. Devices or systems that
are connected by a communications line can share information and resources.
console mode
The state in which the computer is controlled from the console terminal. You
can put the system in console mode by pressing the halt button on the back of
the system unit. Console mode is indicated by the console prompt (>>>) on the
monitor screen.
console prompt
A prompt used for communication between the system manager and the
computer when the computer is in console mode.
controller
A system component, usually a printed circuit board, that regulates the
operation of one or more peripheral devices.
CPU
Central processing unit. The part of the system that controls the interpretation
and execution of instructions.
daisy-chain
A group of systems linked together sequentially.
data
A formal representation of information suitable for communication,
interpretation, and processing by humans or computers.
DECconnect
Digital’s simple, cost-effective cabling system for extending Ethernet and
terminal interconnections into offices and work areas.
DECconnect faceplate
See faceplate.
default
A value or setting that in most cases is normal or expected.

Glossary–2

DEMPR
A multiport repeater that provides eight ThinWire Ethernet drops from a
single standard Ethernet connection.
device
The general name for any unit connected to the system that is capable of
receiving, storing, or transmitting data.
device name
The name by which a device or controller is identified in the system.
diagnostics
Programs, located in read-only memory, that detect and identify abnormal
system hardware operation. (See ROM.)
disk
A flat circular plate with a coating on which data is magnetically stored in
concentric circles (tracks). A disk resides permanently inside a disk drive,
while a diskette is removable.
disk drive
A device that holds a disk. The drive contains mechanical components that
spin the disk and move the read/write heads that store and read information
on the surface of the disk.
Ethernet
A type of local area network based on Carrier Sense Multiple Access with
Collision Detection (CSMA/CD).
faceplate
A wall receptacle that provides a single network connection for the system.
file
A collection of related information treated by the system as a single unit.
format
To prepare a disk, diskette, or tape to accept data.
formatted data
Data that is structured in a particular pattern to be understood by the system
software.

Glossary–3

ground
A voltage reference point in a system that has a zero voltage potential.
hard disk
A hard disk resides permanently inside a disk drive.
hardware
The physical components—mechanical and electrical—that make up a system.
(Compare with 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.
IEEE
Institute of Electrical and Electronics Engineers.
IEEE 802.3
An Institute of Electrical and Electronics Engineers (IEEE) standard
describing the physical and data link layers of a local area network based on
bus topology and Carrier Sense Multiple Access/Collision Detect (CSMA/CD).
LAN
Local area network. A high-speed communications network that covers a
limited geographical area, such as a section of a building, an entire building, or
a cluster of buildings. It is a privately owned communications network whose
speed is upward of 1M bits/second.
LED
Light-emitting diode. LEDs are used as indicators on the system enclosure.
load
To copy software (usually from a peripheral device) to memory. To physically
place a disk in a disk drive or a tape in a tape drive.
Local Area Network
See LAN.
magnetic tape
A tape used for storing data that is made of plastic and coated with magnetic
oxide. Also called magtape.

Glossary–4

memory
The area of the system that electrically stores instructions and data, often
temporarily.
memory module
A printed circuit board that contains additional memory for the system.
module
A printed circuit board that contains electrical components and electrically
conductive pathways between components. A module stores data or memory or
controls the functions of a device.
multiport repeater
A repeater used to connect two or more cable segments. The repeater lets you
extend Ethernet networks beyond the limits imposed by a single segment.
Repeaters perform the basic actions of restoring signal amplitude, waveform,
and timing amplitude to normal data and collision signals.
network
A group of individual computer systems that are connected by communications
lines to share information and resources.
network co-ordinator
The network co-ordinator 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 peripheral 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.
operating system
A collection of system programs that controls the operation of the system and
allows the user to access data files, input/output devices, and applications
programs. The operating system software performs such tasks as assigning
memory to programs and data, processing requests, and scheduling jobs.

Glossary–5

peripheral
A device that provides the CPU with additional memory storage or
communication capability. Examples are disk and diskette drives, video
terminals, and printers.
port
The name of the socket or connector at the back of the computer to which a
terminal, printer, or other communication devices are connected.
printer
A peripheral device that provides paper copies of information stored on the
system.
prompt
Words or characters that the system displays to indicate that it is waiting for
you to enter a command.
RAM
Random-access memory. Memory that can be both read and written to and can
randomly access any location during normal operations. The type of memory
the system uses to store the instructions of programs currently being run.
Compare with ROM.
random-access memory
See RAM.
read-only memory
See ROM.
ROM
Read-only memory. A memory whose contents cannot be modified. The system
can use the data contained in a ROM but cannot change it. Compare with
RAM.
SCSI
Small computer system interface. It is an interface designed for connecting
disks and other peripheral devices to computer systems. SCSI is defined by an
American National Standards Institute (ANSI) standard and is used by many
computer and peripheral vendors throughout the industry.

Glossary–6

SIMM
Single inline memory module. This refers to the physical shape of the memory
module.
Small computer system interface
See SCSI.
software
Programs executed by the system to perform a chosen or required function.
(Compare with hardware.)
standard Ethernet
IEEE standard 802.3 compliant Ethernet network composed of standard
Ethernet cable as opposed to ThinWire Ethernet cable.
storage medium
Any device capable of recording information; for example, a diskette.
store
To enter data into a storage device, such as a disk, or into memory.
system
A combination of system hardware, software, and peripheral devices that
performs specific processing operations.
tape drive
A device that contains mechanical components and holds, turns, reads, and
writes on magnetic tape.
tape leader
A plastic leader at the beginning of magnetic tape.
tape lever
This lever sets internal TZ30 mechanisms to accept or eject the tape cartridge.
Move the lever to the left to insert a tape, move to the right so the tape can be
used, and move to the left again to eject the cartridge after the tape has been
completely rewound.
T-connector
Connector used to join ThinWire Ethernet cable sections. The connector also
has a connector that is attached directly to a system.
Glossary–7

terminal
An input/output device that lets you communicate with the system. Terminals
are divided into two categories: video and hard-copy.
terminator
A connector used on one or both ends of an Ethernet segment that provides the
50-ohm termination resistance needed for the cable.
ThinWire
A Digital trademark used to describe its 10 base 2 (IEEE standard 802.3
compliant) Ethernet products used for local distribution of data.
ThinWire connector
The connector on the back of the system unit to which the ThinWire Ethernet
cable is attached.
transceiver
A device that provides a single physical connection between standard Ethernet
and Ethernet communication equipment.
unload switch
A switch on the front of the TZ30 tape drive that rewinds and unloads the
tape.
VMS
Digital’s proprietary operating system.
write-protect
To protect a disk, diskette, or other storage medium from the addition, revision,
or deletion of information.
write-protect switch
The switch that you set on tapes, cartridges, or diskettes to prevent loss of
data by accidental overwriting.

Glossary–8

Index
A
Adapter
EIA-232 to DEC423 (H8575-A), 4–14,
4–16
Address
Ethernet, 3–11
ALLCLASS, C–2
setting, C–7
Alternative console port, 1–3
MMJ port 3, 1–3
Associated documents, A–1
Asynchronous communications options
connecting to, 4–18, 4–20
DEC423 data-line-only ports, 4–18
DHW42-AA, 4–2, 4–18
DHW42-BA, 4–2, 4–20
DHW42-CA, 4–2
DHW42-UP, 4–2
Asynchronous communications port A
optional port icon, 1–6
optional port location, 1–2
optional port use, 1–2
Asynchronous communications port B
optional port icon, 1–6
optional port location, 1–2
optional port use, 1–2
Asynchronous communications ports
DEC423 data-line-only, 4–2
Asynchronous DEC423 data-line-only ports,
1–2
Asynchronous modem control port
connecting to, 4–14, 4–16
icon, 1–6

Asynchronous modem control port (cont’d)
location, 1–2
use, 1–2

B
Backups
with tape cartridges, B–4
Bail lock loops, 4–8
Beeper
TZ30 beeper meaning, 2–6
Break/enable LED
location, 1–3
use, 1–3
Break/enable switch
location, 1–3
use, 1–3
Breakout cable
BC29J-06, 4–2, 4–20
Busy LED
location on RRD42, 2–25
use with RRD42, 2–25

C
Cables
See also Extension cables
associated synchronous interface
standards, 4–1
BC16C-10, 4–2, 4–18
BC16E, 4–12
BC16E-nn, 4–12
BC19B-02, 4–1
BC19D-02, 4–1, 4–22
BC19E-02, 4–1

Index–1

Cables (cont’d)
BC22F-nn, 4–14
BC29J-06, 4–2, 4–20
breakout, 4–2, 4–20
connecting ThinWire cable to system unit,
3–4
DEC423, 4–16, 4–18
DEC423 cables, 4–12
SCSI cable connection, 4–8
SCSI cables maximum length, 4–5
transceiver, 3–8
Caddy
for compact discs, 2–24
inserting into RRD42, 2–29
loading compact discs, 2–26
opening, 2–27
ordering spares, 2–24
removing from RRD42, 2–30
removing manually from RRD42, 2–31
shutter, B–12
Capacity
memory, 4–1
Cassette tape drive
TLZ06, 2–18
Cassette tapes
guidelines, B–10
inserting into TLZ06, 2–20
removing from TLZ06, 2–22
TLZ04-CA, B–9
TLZ06-CA, B–9
TZK10 compatible, B–9
use and care of, B–9
write enabling, B–10
write-protect switch, B–9, B–10
write-protecting, B–10
writing to, B–10
Cleaning
TLZ06 heads, 2–32
TZ30 heads, 2–32
TZK10 heads, 2–32
Cleaning kit
TLZ06, 2–32
TZ30, 2–32
TZK10, 2–32

Index–2

Compact disc drive
RRD42 compact disc drive, 2–24
Compact discs, 2–24
care and handling, B–12
cleaning, B–12
inserting, 2–26 to 2–29
inserting into RRD42, 2–26
loading into caddy, 2–26
removing from RRD42, 2–30
CompacTape
description, B–1
inserting into TZ30, 2–7
removing from TZ30, 2–10
CompacTape cartridge, 2–3
CompacTape II, 2–3
description, B–1
inserting into TZ30, 2–7
removing from TZ30, 2–10
CompacTape/CompacTape II cartridges
compatibility, B–2
guidelines, B–4
Compatible drives
CompacTape/CompacTape II, B–2
Configuration
memory, 4–1
Configuration display, 4–6
Connectors
DEC423, 4–14, 4–16
EIA-232, 4–14
Console mode
returning to, 1–2
Console port, 1–3
alternative, 1–3
MMJ port 0, 1–3
Console terminal, 1–2
Controls
locations, 1–2
TZ30, 2–3
Cover
system unit, 2–2

D
DEC423
asynchronous data-line-only
communications, 4–2, 4–18
connecting to MMJ ports, 4–12
earth drain wire, 4–12
grounding pillar, 4–12
MMJ ports, 4–2, 4–18
peripherals, 4–12
to EIA-232 adapter (H8575-A), 4–14,
4–16
DECconnect
connecting to faceplate, 3–6
products, 3–6
DHW42-AA, 4–2, 4–18
DHW42-BA, 4–2, 4–20
DHW42-CA, 4–2
DHW42-UP, 4–2
Diagnostic LEDs
icon, 1–6
location, 1–3
use, 1–3
Diagnostics
TZ30, 2–6
Digital Sales, 4–1, 4–2, 4–3, 4–4
Digital Services, 3–1, 4–3
Digital Storage Systems Interconnect
See DSSI
Disc caddy
for compact discs, 2–24
inserting into RRD42, 2–29
loading compact discs, 2–26
opening, 2–27
ordering spares, 2–24
removing from RRD42, 2–30
removing manually from RRD42, 2–31
Discs
cleaning compact discs, B–12
compact disc care and handling, B–12
Documents
associated, A–1
related, A–2

DSSI
description of, 4–3
DSSI expansion boxes
connecting, 4–4
DSSI VAXcluster configuration, 3–16
DSW42-AA, 4–1, 4–22
Dual-color LED
location on TZK10, 2–12
use with TZK10, 2–12
DUP driver utility, C–2, C–6
entering, C–7
exiting, C–10

E
Earth drain wire
MMJ ports, 4–12
EIA-232
asynchronous, 4–2, 4–20
synchronous, 4–1, 4–22
to DEC423 adapter (H8575-A), 4–14,
4–16
V.24, 4–1, 4–20, 4–22
EIA-232 port
See Asynchronous modem control port
EIA-232/V.24, 4–2
EIA-422/V.11, 4–1
EIA-423/V.10, 4–1
Eject button
location on RRD42, 2–25
location on TZK10, 2–12
use with RRD42, 2–25
use with TZK10, 2–12
Emergency eject hole
location on RRD42, 2–25
use with RRD42, 2–25
Ethernet
completing the installation, 3–11
connecting standard Ethernet, 3–8
connecting Thinwire Ethernet, 3–4
connecting to DECconnect faceplate, 3–6
disconnecting T-connector, 3–12
disconnecting transceiver cable, 3–14
icon, 1–6
installation failure, 3–11

Index–3

Ethernet (cont’d)
network select switch, 3–2
network select switch location, 1–3
network select switch use, 1–3
node name, 3–11
removing system from Standard, 3–14
removing system from ThinWire, 3–12
selecting type, 3–2
SHOW ETHERNET command, 3–11
standard Ethernet port location, 1–3
standard Ethernet port use, 1–3
TEST 9 failure, 3–10
TEST 9 success, 3–10
testing installation, 3–10
ThinWire Ethernet port location, 1–3
ThinWire Ethernet port use, 1–3
Ethernet address, 3–11
Expansion boxes
checking connections, 4–11
connecting, 4–4 to 4–12
connecting cables, 4–8
connection guidelines, 4–5
preparing system unit for, 4–6
Extension cables
BC16C-nn, 4–2
BC16E-nn, 4–2
BC22F-nn, 4–1, 4–2
BC55D-nn, 4–1
null-modem, 4–2, 4–14
External options, 4–4

F
Faceplate
connecting to DECconnect, 3–6
Factory Installed Software
See FIS
FIS, 2–33
FORCEUNI, C–3

Index–4

G
Grounding pillar, 4–12

H
Halt button
icon, 1–6
location, 1–2
use, 1–2
Hard disk, 2–33
Hardware options, 4–1 to 4–23
Harmonica (H3104), 4–2, 4–18
Headphone socket
location on RRD42, 2–25
use with RRD42, 2–25

I
Icons
on system unit, 1–6
Installation guidelines
expansion boxes, 4–5
Integrated storage element (ISE)
and support on DSSI bus, 4–3
Interface standards
EIA-232/V.24, 4–1, 4–2, 4–20
EIA-422/V.11, 4–1
EIA-423/V.10, 4–1
synchronous, 4–1
Internal options
installation, 4–3

L
LEDs
break/enable LED, 1–3
diagnostic, 1–3
locations, 1–2
RRD42, 2–24
status LED display, 1–3
TLZ06, 2–18
TZ30, 2–3
TZ30 LED locations, 2–4
TZ30 LED meanings, 2–6

LEDs (cont’d)
TZK10, 2–12

M
Memory
capacity, 4–1
optional, 4–1
system unit, 4–1
Memory modules
MS44, 4–1
MS44L, 4–1
MMJ port 0
console port, 1–3
MMJ port 3
alternative console port, 1–3
MMJ ports
connecting to, 4–12
DEC423, 4–2, 4–18
earth drain wire, 4–12
grounding pillar, 4–12
icons, 1–6
location, 1–2
on harmonica, 4–2, 4–18
use, 1–2
Modem
Null-modem extension cables, 4–2, 4–14
Modem ports
See also Asynchronous communications
options
See Asynchronous modem control port
optional asynchronous modem control
ports, 4–20
MS44-DC memory module, 4–1
MS44L-BC memory module, 4–1

N
Network coordinator, 3–1, 3–2, 3–6, 3–11,
3–12
Network select switch
icon, 1–6
location, 1–3
setting for standard Ethernet, 3–2
setting for ThinWire Ethernet, 3–2

Network select switch (cont’d)
use, 1–3
Networks, 3–1 to 3–18
installation failure, 3–11
Node name
Ethernet, 3–11
NODENAME, C–3
setting, C–9
Null modem
extension cables, 4–2, 4–14

O
On/off switch
location, 1–2
use, 1–2
Operate lever
location on TZ30, 2–4
use with TZ30, 2–6
Operating system
shutting down, 3–12
Optional asynchronous communications port
A
icon, 1–6
location, 1–2
use, 1–2
Optional asynchronous communications port
B
icon, 1–6
location, 1–2
use, 1–2
Optional synchronous communications port 0
location, 1–2
use, 1–2
Optional synchronous communications port 1
location, 1–2
use, 1–2

P
Peripherals, 4–4
connecting, 4–12 to 4–23
DEC423, 4–12
Ports
asynchronous modem control port, 4–14,
4–16

Index–5

Ports (cont’d)
DEC423 MMJ data-line-only, 4–18
EIA-232, 4–22
locations, 1–2
MMJ DEC423 data-line-only, 4–12
modem port, 4–14, 4–16
optional asynchronous communications
ports, 4–18
optional asynchronous modem control
ports, 4–20
optional data-line-only asynchronous
ports, 4–18
optional synchronous modem port, 4–22
Power-up tests
TZ30, 2–6

Q
QIC tape drive
TZK10, 2–12
QIC tapes
DC6320, B–6
DC6525, B–6
guidelines, B–7
inserting into TZK10, 2–14
removing from TZK10, 2–16
TZK10 compatible, B–6
use and care of, B–6
write enabling, B–7
write-protect switch, B–6, B–7
write-protecting, B–7
writing to, B–7
Quarter-inch cartridge tape
See Cassette tapes
See QIC tapes

R
Related documents, A–2
Removable media devices
accessing, 2–2
cover, 2–2
RRD42, 2–24 to 2–31
busy LED location, 2–25
busy LED use, 2–25

Index–6

RRD42 (cont’d)
compact disc drive, 2–24
eject button location, 2–25
eject button use, 2–25
emergency eject hole location, 2–25
emergency eject hole use, 2–25
headphone socket location, 2–25
headphone socket use, 2–25
inserting compact discs, 2–26
inserting the caddy, 2–29
loading discs into caddy, 2–26
opening caddy, 2–27
ordering additional caddies, 2–24
removing caddy, 2–30
removing disc, 2–30
removing the caddy manually, 2–31
volume control location, 2–25
volume control use, 2–25
RX26
accessing, 2–2

S
SCSI
supported storage devices, 4–3
SCSI cables
bail lock loops, 4–8
connection, 4–8
maximum length, 4–5
SCSI controller
ID, 4–6
SCSI expansion boxes
checking connections, 4–11
connecting, 4–4
connecting cables, 4–8
connection guidelines, 4–5
preparing system unit for, 4–6
SCSI IDs
controller ID, 4–6
selecting available IDs, 4–6
SCSI port
icon, 1–6
location, 1–4
use, 1–4

SCSI terminator, 1–4, 4–5
connecting, 4–8
removal, 4–6
SHOW commands, C–6
SHOW CONFIG command, 4–6
SHOW DSSI command, 4–11
SHOW ETHERNET command, 3–11
SHOW Q-BUS command, 4–11
SHOW SCSI command, 4–11
Software
installing with tape cartridges, B–4
Standard Ethernet
connecting to, 3–8 to 3–9
disconnecting transceiver cable, 3–14
removing system from, 3–14
setting network select switch for, 3–2
transceiver cable, 3–8
Standard Ethernet port
icon, 1–6
location, 1–3
use, 1–3
Status LED display
icon, 1–6
location, 1–3
use, 1–3
Switches
network select, 3–2
Synchronous communications options
connecting to, 4–22
DSW42-AA, 4–1, 4–22
Synchronous communications port 0
optional port location, 1–2
optional port use, 1–2
Synchronous communications port 1
optional port location, 1–2
optional port use, 1–2
Synchronous communications ports, 4–1,
4–22
Synchronous interface standards, 4–1
System ac power
location, 1–2
use, 1–2
System board
memory, 4–1

System disk, 2–33
System manager, 3–1
System unit
configuration display, 4–6
connecting Thinwire Ethernet, 3–4
connecting to DECconnect faceplate, 3–6
connecting transceiver cable to, 3–8
controls, 1–2
cover, 2–2
icons, 1–6
LEDs, 1–2
memory, 4–1
ports, 1–2
preparing for expansion box, 4–6
setting network select switch, 3–2
system board memory, 4–1
testing Ethernet installation, 3–10
SYSTEMID, C–3
setting, C–9

T
T-connector
connecting ThinWire Ethernet cable to,
3–4
disconnecting, 3–12
Tape cartridges
caring for, B–4
CompacTape, 2–3
CompacTape II, 2–3
inserting into TZ30, 2–7
installing software with, B–4
labeling, B–3
making backups with, B–4
removing from TZ30, 2–10
use and storage of, B–1
write-protect switch, B–4
write-protecting, B–4
writing to, B–4
Tape drives
TLZ06 cassette tape drive, 2–18
TZ30 tape drive, 2–3
TZK10 QIC tape drive, 2–12

Index–7

Tape/activity LED
location on TLZ06, 2–18
use with TLZ06, 2–18
Terminal settings, 1–5
Terminator
connecting the SCSI terminator, 4–8
SCSI, 4–5
SCSI terminator removal, 4–6
ThinWire Ethernet, 3–4
ThinWire Ethernet
cable, 3–4
connecting to, 3–4 to 3–7
connecting to DECconnect faceplate, 3–6
disconnecting T-connector, 3–12
removing system from, 3–12
setting network select switch for, 3–2
T-connector and terminators, 3–4
ThinWire Ethernet port
icon, 1–6
location, 1–3
use, 1–3
TLZ06, 2–18 to 2–23
accessing, 2–2
cassette tape drive, 2–18
cleaning kit, 2–32
cleaning the heads, 2–32
inserting cassette tapes, 2–20
removing cassette tapes, 2–22
tape/activity LED location, 2–18
tape/activity LED use, 2–18
unload button location, 2–18
unload button use, 2–18
write-protect LED location, 2–18
write-protect LED use, 2–18
Transceiver cable
connecting to system, 3–8
disconnecting, 3–14
TZ30, 2–3 to 2–11
accessing, 2–2
beeper, 2–6
beeper meaning, 2–6
cleaning kit, 2–32
cleaning the heads, 2–32
controls and LEDs, 2–3
inserting tape cartridges, 2–7

Index–8

TZ30 (cont’d)
LED locations, 2–4
LED meanings, 2–6
operate lever location, 2–4
operate lever use, 2–6
operation, 2–3
power-up test, 2–6
removing tape cartridges, 2–10
tape drive, 2–3
unload button location, 2–4
unload button use, 2–6
TZK10, 2–12 to 2–17
accessing, 2–2
cleaning kit, 2–32
cleaning the heads, 2–32
dual-color LED location, 2–12
dual-color LED use, 2–12
eject button location, 2–12
eject button use, 2–12
inserting QIC tapes, 2–14
QIC tape drive, 2–12
removing QIC tapes, 2–16

U
UNITNUM, C–2
setting, C–8
Unload button
location on TLZ06, 2–18
location on TZ30, 2–4
use with TLZ06, 2–18
use with TZ30, 2–6

V
Volume control
location on RRD42, 2–25
use with RRD42, 2–25

W
Write-enable
write enabling cassette tapes, B–10
write enabling QIC tapes, B–7

Write-protect
cassette tape switch, B–10
protecting cassette tapes, B–10
protecting QIC tapes, B–7
protecting tape cartridges, B–4
QIC tape switch, B–7
tape cartridge switch, B–4
Write-protect LED
location on TLZ06, 2–18

use with TLZ06, 2–18
Write-protect switch
cassette tapes, B–9
QIC tapes, B–6

X
4XM544-CA memory module, 4–1
4XM544L-AA memory module, 4–1

Index–9

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VAX 4000 Model 100A
Operator Information
EK–503AA–OP. A01

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