Compaq 326817-003 User Manual

Compaq DAT AutoLoader

Reference Guide

Third Edition (January 2000)
Part Number 326817-003
Compaq Computer Corporation

Notice

The information in this publication is subject to change without notice.

COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR
EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL OR
CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING, PERFORMANCE, OR
USE OF THIS MATERIAL. THIS INFORMATION IS PROVIDED “AS IS” AND COMPAQ
COMPUTER CORPORATION DISCLAIMS ANY WARRANTIES, EXPRESS, IMPLIED OR
STATUTORY AND EXPRESSLY DISCLAIMS THE IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, GOOD TITLE AND AGAINST
INFRINGEMENT.

This publication contains information protected by copyright. No part of this publication may be
photocopied or reproduced in any form without prior written consent from Compaq Computer
Corporation.

© 2000 Compaq Computer Corporation.

All rights reserved. Printed in the U.S.A.

The software described in this guide is furnished under a license agreement or nondisclosure agreement.
The software may be used or copied only in accordance with the terms of the agreement.

Compaq, Deskpro, Fastart, Compaq Insight Manager, Systempro, Systempro/LT, ProLiant, ROMPaq,
SmartStart, ProSignia, registered United States Patent and Trademark Office.

Microsoft, MS-DOS, Windows, and Windows NT are registered trademarks of Microsoft Corporation.

Pentium is a registered trademark and Xeon is a trademark of Intel Corporation.

Other product names mentioned herein may be trademarks and/or registered trademarks of their
respective companies.

Compaq DAT AutoLoader Reference Guide
Third Edition (January 2000)
Part Number 326817-003

Contents

About This Guide

Text Conventions.......................................................................................................vii

Symbols in Text....................................................................................................... viii

Symbols on Equipment............................................................................................ viii

Rack Stability .............................................................................................................ix

Getting Help ................................................................................................................x

Compaq Technical Support ..................................................................................x

Compaq Website ..................................................................................................x

Compaq Authorized Reseller................................................................................x

Chapter 1

Overview

Introduction to the DAT AutoLoader ...................................................................... 1-1

Features.................................................................................................................... 1-2

The SCSI Interface .................................................................................................. 1-3

Controller Requirements................................................................................... 1-3

Reliability of Backup Devices ................................................................................. 1-3

Projected Duty Cycle........................................................................................ 1-4

Capacity................................................................................................................... 1-4

Data Compression ............................................................................................ 1-4

Cassette Formats...................................................................................................... 1-5

DDS Logo Media ............................................................................................. 1-6

Write-Protecting a Cassette .............................................................................. 1-7

Life Expectancy of Cassettes............................................................................ 1-7

iv

Chapter 2

Installation

DAT AutoLoader Installation .................................................................................. 2-1

Software and Tool Requirements...................................................................... 2-1

Setting the SCSI ID........................................................................................... 2-3

Switch Settings......................................................................................................... 2-3

Preparing the Computer ........................................................................................... 2-6

Installing the DAT AutoLoader ............................................................................... 2-6

Reassembling the Computer .................................................................................... 2-8

Connecting the Tabletop AutoLoader...................................................................... 2-9

Completing the Installation.................................................................................... 2-10

Chapter 3

Installing Software Drivers

Device Drivers ......................................................................................................... 3-1

Microsoft Windows NT ........................................................................................... 3-2

Novell NetWare ....................................................................................................... 3-3

ASPI Support ........................................................................................................... 3-3

Compaq Tru64 UNIX .............................................................................................. 3-4

OpenVMS ................................................................................................................ 3-4

SCO OpenServer...................................................................................................... 3-4

Configuring the SCSI ID for SCO OpenServer................................................ 3-5

SCO UnixWare ........................................................................................................ 3-6

SunSoft Solaris......................................................................................................... 3-7

Banyan VINES......................................................................................................... 3-8

Chapter 4

Operation

Introduction to Magazines and Cassettes................................................................. 4-1

Labeling Cassettes and the Magazine ............................................................... 4-2

Loading the Magazine with Cassettes...................................................................... 4-2

Eight-Cassette Configuration............................................................................ 4-3

Seven-Cassette Configuration........................................................................... 4-4

Single-Cassette Configuration .......................................................................... 4-4

To Load the Magazine With Cassettes..............................................................4-5

Loading the Magazine into the AutoLoader ............................................................ 4-6

Removing the Cassettes from the Magazine............................................................ 4-6

Ejecting the Magazine ...................................................................................... 4-7

Modes of Operation .................................................................................................4-9

Front Panel............................................................................................................. 4-10

Liquid Crystal Display (LCD) ...............................................................................4-11

LCD Messages....................................................................................................... 4-12

LCD Menu Screens................................................................................................ 4-16

Chapter 5

Cleaning

Importance of Routine Cleaning.............................................................................. 5-1

Errors Resulting from Cleaning Neglect.................................................................. 5-2

Importance of Compaq-Approved Tape Cassettes .................................................. 5-3

DAT AutoLoader Cleaning Recommendations....................................................... 5-3

Procedure for Cleaning the Heads in Stacker Mode................................................ 5-4

Procedure for Cleaning the Heads in Random Mode .............................................. 5-4

Chapter 6

Troubleshooting

Quick Checklist ....................................................................................................... 6-1

Hardware .......................................................................................................... 6-1

Software............................................................................................................ 6-2

Installation Troubleshooting.................................................................................... 6-3

Troubleshooting After Installation........................................................................... 6-4

For Tru64 Unix................................................................................................. 6-4

For Novell NetWare ......................................................................................... 6-4

For Microsoft Windows NT Systems............................................................... 6-5

For SCO OpenServer Systems.......................................................................... 6-5

For IBM OS/2 Systems..................................................................................... 6-6

Resolving Operating Problems ................................................................................ 6-6

Resolving Magazine Problems ................................................................................ 6-6

Correcting Intermittent Failures............................................................................... 6-7

v

Appendix A

Regulatory Compliance Notices

Regulatory Compliance Identification Numbers .....................................................A-1

Federal Communications Commission Notice ........................................................A-1

Class B Equipment ...........................................................................................A-2

Modifications....................................................................................................A-3

Canadian Notice (Avis Canadien) ...........................................................................A-4

Class B Equipment ...........................................................................................A-4

European Union Notice ...........................................................................................A-4

Japanese Notice .......................................................................................................A-5

Taiwanese Notice.....................................................................................................A-5

Appendix B

Electrostatic Discharge

Grounding Methods.................................................................................................B-2

vi

Appendix C

Specifications

Dimensions and Weight.......................................................................................... C-1

Temperature and Humidity Range.......................................................................... C-2

Power Requirements ............................................................................................... C-2

Air-Cooling Requirement ....................................................................................... C-2

Suspended Particulate ............................................................................................. C-3

Index

This guide is designed to be used as step-by-step instructions for installation

and as a reference for operation, troubleshooting, and future upgrades.

Text Conventions

This document uses the following conventions to distinguish elements of text:

Keys

About This Guide

Keys appear in boldface. A plus sign (+) between
two keys indicates that they should be pressed
simultaneously.

USER INPUT

FILENAMES

Menu Options,
Command Names,
Dialog Box Names

COMMANDS,
DIRECTORY NAMES,
and DRIVE NAMES

Type When you are instructed to

Enter When you are instructed to

User input appears in a different typeface and in
uppercase.

File names appear in uppercase italics.

These elements appear in initial capital letters.

These elements appear in uppercase.

the information

the information and then press the

without

pressing the

information, type

type

Enter

information, type

enter

Enter

key.

key.

viii Compaq DAT AutoLoader Reference Guide

Symbols in Text

These symbols may be found in the text of this guide. They have the following
meanings.

WARNING:

in the warning could result in bodily harm or loss of life.

CAUTION:

could result in damage to equipment or loss of information.

IMPORTANT:

instructions.

Text set off in this manner presents commentary, sidelights, or interesting points

NOTE:

of information.

Text set off in this manner indicates that failure to follow directions

Text set off in this manner presents clarifying information or specific

Symbols on Equipment

These icons may be located on equipment in areas where hazardous conditions
may exist.

Any surface or area of the equipment marked with these symbols
indicates the presence of electric shock hazards. Enclosed area
contains no operator-serviceable parts.

WARNING:

do not open this enclosure.

Text set off in this manner indicates that failure to follow directions

To reduce the risk of injury from electric shock hazards,

Any RJ-45 receptacle marked with these symbols indicates a Network
Interface Connection.

WARNING:

equipment, do not plug telephone or telecommunications connectors
into this receptacle.

To reduce the risk of electric shock, fire, or damage to the

About This Guide ix

Any surface or area of the equipment marked with these symbols
indicates the presence of a hot surface or hot component. If this
surface is contacted, the potential for injury exists.

Rack Stability

WARNING:

the surface to cool before touching.

WARNING:

be sure that:

To reduce the risk of injury from a hot component, allow

Power supplies or systems marked with these symbols indicate
the equipment is supplied by multiple sources of power.

WARNING:

remove all power cords to completely disconnect power from
the system.

Any product or assembly marked with these symbols indicates that
the component exceeds the recommended weight for one individual
to handle safely.

WARNING:

equipment, observe local occupational health and safety
requirements and guidelines for manual material handling.

To reduce the risk of personal injury or damage to the equipment,

To reduce the risk of injury from electric shock,

To reduce the risk of personal injury or damage to the

The leveling jacks are extended to the floor.

■

The full weight of the rack rests on the leveling jacks.

■

The stabilizing feet are attached to the rack if it is a single rack

■

installation.

The racks are coupled together in multiple rack installations.

■

A rack may become unstable if more than one component is extended for

■

any reason. Extend only one component at a time.

x Compaq DAT AutoLoader Reference Guide

Getting Help

If you have a problem and have exhausted the information in this guide, you
can get further information and other help in the following locations.

Compaq Technical Support

In North America, call the Compaq Technical Phone Support Center at
1-800-OK-COMPAQ. This service is available 24 hours a day, 7 days a week.
For continuous quality improvement, calls may be recorded or monitored.

Outside North America, call the nearest Compaq Technical Support Phone
Center. Telephone numbers for world wide Technical Support Centers are
listed on the Compaq website. Access the Compaq website by logging on to
the Internet at:

http://www.compaq.com

Be sure to have the following information available before you call Compaq:

Technical support registration number (if applicable)

■

Product serial number

■

Product model name and numbers

■

Applicable error messages

■

Add-on boards or hardware

■

Third-party hardware or software

■

Operating system type and revision level

■

Compaq Website

The Compaq website has information on this product as well as the latest
drivers and Flash ROM images. You can access the Compaq website by
logging on to the Internet at:

http://www.compaq.com

Compaq Authorized Reseller

For the name of your nearest Compaq Authorized Reseller:

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

■

In Canada, call 1-800-263-5868.

■

Elsewhere, see the Compaq website for locations and telephone

■

numbers.

Introduction to the DAT AutoLoader

The Compaq 20/40 Gigabyte (GB) DAT 8-Cassette AutoLoader combines a

changer mechanism with a DDS-4 cassette drive mechanism. The DAT

AutoLoader houses up to eight DDS cassettes in a removable magazine, which

enables you to back up weeks and months of data automatically. High-speed

file retrieval and cassette swapping typically allow access to any file in an

average of 95 seconds. The DAT AutoLoader supports both sequential and

random access modes, with minimum interruption time between cassettes.

Chapter

1

Overview

Figure 1-1. Compaq 20/40 GB DAT 8-Cassette AutoLoader

Compaq DAT AutoLoader Reference Guide

1-2

Features

The Compaq 20/40 GB DAT 8-Cassette AutoLoader offers the following
features:

Any DDS-1, DDS-DC, DDS-2 DDS-3 or DDS-4 cassette can be read or

■

written to, whether data compression is switched on or off.

The drive is capable of additional sophisticated techniques of

■

error-correction for dealing with cassettes, which are not up to
specification.

When using DDS-4 media, the drive reads and writes the DDS-4 format

■

with a much higher capacity.

An improved internal cleaning sweeper reduces the frequency of

■

cleaning the heads by a factor of eight.

The TapeAlert feature allows software and operating systems to warn

■

users of conditions which may occur, such as a cassette nearing the end
of its useful life, and to recommend actions that the user can take to
recover from the situation.

A Liquid Crystal Display (LCD) gives clear and comprehensive

■

indications of the status of the DAT AutoLoader.

A low-cost magazine carrying up to eight DDS cassettes, giving a

■

magazine capacity of 320 gigabytes for DDS-4 cassettes using 2:1 data
compression.

Compatibility with the SCSI-2 Medium Changer command set.

■

A common SCSI-2 interface for the drive and changer.

■

A standard 5 1/4-inch full-height form factor.

■

A cassette odometer displaying the amount of cassette used.

■

The SCSI Interface

The Compaq 20/40 GB DAT 8-Cassette AutoLoader uses SCSI-2 as the

interface to connect the host system.

Overview

1-3

IMPORTANT:

In the information that follows, the term SCSI implies SCSI-2.

The SCSI implementation provides the DAT AutoLoader with a standard set

of features and functions. These include the following:

LVD Wide SCSI connection

■

Synchronous data transfers

■

Asynchronous data transfers

■

Implementation of all mandatory and most optional commands of the

■

Sequential Access command set

Full implementation of mandatory Medium Changer commands

■

Controller Requirements

Compaq recommends equipping the computer with an LVD 32-bit Fast

SCSI-2 Controller or higher. Any of these controllers fully support the

Compaq 20/40 GB DAT 8 Cassette AutoLoader.

IMPORTANT:

computer) or in an external storage device, but not both. The exception is a CD-ROM
drive, which may be internal when other devices are external or vice versa.

All SCSI devices on the same bus must either be internal (within the

Reliability of Backup Devices

The reliability of any backup device is directly related to its duty cycle (the

number of hours per day that the device is in use). For example, if a tape drive

designed for 24-GB backups is being used to back up a 100-GB computer, the

result on that drive will be a need for accelerated preventive maintenance

(especially head cleaning), premature aging, and reliability problems. See

Chapter 5 for more information on cleaning requirements.

Compaq DAT AutoLoader Reference Guide

1-4

Projected Duty Cycle

The projected duty cycle of the Compaq 20/40 GB DAT 8-Cassette
AutoLoader is an important consideration in determining the amount of time
required for backup of a given system, as well as how often it is necessary to
clean the tape drive’s read/write heads.

For example, a nightly, unattended complete 18-GB backup is well within the
capacity of one 20/40 GB DAT drive. However, at a backup rate of
approximately 8GB/hour, that tape drive is in operation for approximately 2
1/4 hours every night of the week. With this amount of usage, the tape drive’s
read/write heads should be cleaned every 4 to 6 weeks. If the drive heads are
not cleaned soft errors and overall backup time increases and eventually
causes the drive to fail.

Capacity

The best method for building hardware reliability into a backup strategy is to
ensure that the backup hardware is matched to the computers. Table 1-1 relates
various computers with the appropriate tape drives. If you need special, partial
backups in addition to the routine backups, select the next larger drive size.

Data Compression

The Compaq 20/40 GB DAT 8-Cassette AutoLoader ships from the factory
with data compression enabled for writing. The drive is equipped with onboard
DDS-DC hardware, using the Data Compression Lempel Ziv (DCLZ)
algorithm. In this mode, data is always compressed when writing to the
cassette, but the drive is capable of reading both compressed and
uncompressed cassettes.

Table 1-1

Tape Drive Capacity

Compaq Tape AutoLoader Computer Capacity

2/4 GB DAT 2-4 GB or less

4/8 GB DAT 4-8 GB or less

12/24 GB DAT 12-24 GB or less

20/40 GB DAT 20-40 GB or less

The DAT AutoLoader uses jumper pins and/or dip switches for settings. Some

hardware settings may be overridden by way of software. Consult your backup

application software documentation for the data compression enabling and

disabling procedure.

For information on jumper pin settings for data compression, see “Configuring

the AutoLoader” in Chapter 2.

Cassette Formats

The Compaq 20/40 GB DAT 8-Cassette AutoLoader supports

industry-standard Digital Data Storage (DDS), Digital Data Storage Data

Compression (DDS-DC), Digital Data Storage-2 (DDS-2), Digital Data

Storage-3 (DDS-3), and Digital Data Storage-4 (DDS-4) formats.

Overview

1-5

IMPORTANT:

purchased from vendors that have been approved by Compaq (See Table 1-2 for list of
approved cassettes).

For product reliability Compaq recommends using only cassettes

These formats were introduced by the DDS Manufacturers’ Group and are

approved by the American National Standards Institute (ANSI) and the

European Computer Manufacturers’ Association (ECMA). The DDS-DC

format is a superset of the DDS format, ensuring backward compatibility with

uncompressed cassettes.

To use the full potential of a DDS-format drive, you should use matching

cassettes, that is, DDS-4 cassettes for DDS-4 drives. This allows the drives to

store the maximum amount of data on a cassette. Refer to Table 1-2 for a list

of Compaq approved cassettes.

Table 1-2

Compaq Approved Cassettes

DDS1 DDS2 DDS3 DDS4

Sony 60m (DG-60M) Sony 125m, (DGD-125m)

Fuji 90m, (DG-90M) Fuji 120m, (DG-120M) Fuji 125m, (DG3-125m) Fuji 150m, (DG4-150m)

Maxell 120m, HS 4/120s Maxell 125m, HS 4/125s Maxell 150m, HS 4/150s

Note:

A DDS-4 drive can read and write to DDS-3, DDS-2, or DDS-1 cassettes.

Compaq DAT AutoLoader Reference Guide

1-6

DDS Logo Media

To identify computer-grade DDS media easily, look for the DDS logos (See
Figure 1-2), including ! DDS-1, " DDS-2, # DDS-3, and $DDS-4. These
indicate that the media meets the DDS specifications laid down by the ECMA,
ISO/IEC and ANSI standards.

Figure 1-2. DDS Logo Media

1

2

3

4

The Media Recognition System (MRS) enables drives to identify DDS-grade
media. DDS MRS cassettes have a series of stripes on the transparent leader at
the beginning of the cassette. The drive can be configured to treat non-MRS
cassettes as write-protected. In other words, the drive is only allowed to read
non-MRS cassettes, not write to them.

Write-Protecting a Cassette

Overview

1-7

IMPORTANT:

updated during the unload procedure. If the cassette is write-protected, the cassette log
will not be updated and will be inaccurate.

The cassette log, which contains a history of usage of the cassette, is

Cassettes can be write-protected by ! sliding the tab on the rear of the cassette

to the left so that the hole is open (See Figure 1-3). In this state, data can be

read from the cassette but not written to it. To remove write-protection, "

slide the tab to the right so that the hole is closed.

1

Figure 1-3. Write-protecting a cassette

(➊ = Write-protection ON, ➋ = Write-protection OFF)

2

Life Expectancy of Cassettes

All DDS-certified media are designed to withstand at least 2000 passes. Under

optimum environmental conditions (50% relative humidity, 22°C), this is

equivalent to about 100 to150 backup operations. The life expectancy takes

into account that an area of a cassette may have several passes during a

backup, either because streaming (the optimum performance rate where data is

sent to the drive at approximately the same speed as it is written to the cassette

media) cannot be maintained, or because the backup software package

repeatedly accesses certain areas of a cassette.

Certain extreme (worst case) conditions reduce the recommended maximum

number of backup operations. These conditions are as follows:

Environmental conditions — Sustained use at the low end of the

■

humidity specification reduces the cassette life.

Compaq DAT AutoLoader Reference Guide

1-8

■

Computer performance — The lower the performance of the computer,
the more likely that streaming cannot be maintained and that an
increase in the number of passes over given areas of a cassette
will occur.

Backup Software — The backup software may frequently access certain

■

areas of a cassette, or there may be a high system overhead that can
cause streaming to stop. Both of these factors increase the number of
cassette passes in a given area.

Because these parameters vary from system to system, it is difficult to give a
definitive statement of the number of backup operations achievable using a
particular cassette.

As a guideline, Compaq recommends using a cassette for approximately 75
backup operations in worst-case conditions such as those listed above.

DAT AutoLoader Installation

This chapter describes the procedure to install a Compaq 20/40 GB DAT

8-Cassette AutoLoader in a Compaq computer. In addition, at the end of the

chapter there are instructions for connecting the tabletop DAT AutoLoader to

a Compaq computer.

Installation involves the following steps:

1. Configuring the DAT AutoLoader

Chapter

2

Installation

2. Preparing the computer

3. Installing the DAT AutoLoader

4. Reassembling the computer

5. Completing the installation

Software and Tool Requirements

The following items are required for Compaq 20/40 GB DAT 8-Cassette

AutoLoader installations:

Torx T-10 screwdriver

■

Torx T-15 screwdriver

■

2-2 Compaq DAT AutoLoader Reference Guide

■

Compaq SmartStart and Support Software CD

■ Configuring the AutoLoader

The default hardware settings are set for a Compaq system (see Figure 2-1).
The settings in the DAT AutoLoader can be changed if required by a particular
system.

Figure 2-1. Autoloader jumper pins

Table 2-1

Hardware Settings

Jumper Description Default

1

2

3

4

5

6

Note: The default SCSI ID is set to 6. For other settings see, Table 2-2

SCSI ID Bit 0 OFF
SCSI ID Bit 1 ON
SCSI ID Bit 2 ON
Reserved OFF
Reserved OFF
Parity Enable ON

Setting the SCSI ID

Each SCSI device on the same SCSI bus must have a unique SCSI ID. Use the

jumper block located on the back of the DAT AutoLoader to set the SCSI ID.

For SCSI ID jumper settings see Table 2-2.

SCSI ID Bit 2 Bit 1 Bit 0

Table 2-2

SCSI Jumper Pins

Installation

2-3

7*

Note:

SCSI ID 7 is reserved for the SCSI controller.

Switch Settings

When the DAT AutoLoader is powered on, it reads a set of configuration

switches on the underside of the drive. See the following sections for switch

descriptions and settings.

0

1

2

3

4

5

6

000

001

010

011

100

101

110

111

Compaq DAT AutoLoader Reference Guide

2-4

Figure 2-2. AutoLoader configuration switches

Switch Number Description Default

1 Reserved OFF

Table 2-3

Switch Settings

2 Reserved OFF

3 Reserved OFF

4 Reserved OFF

5 Terminator Power OFF

6 Reserved OFF

7 DC Control-1 OFF

8 DC Control-2 OFF

Note:

Switch 1 must remain in the OFF position.

Installation

Default setting compression at power-on enable the host to control

compression.

Table 2-4

Data Compression Definitions

DC Control-1 DC Control-2 Definition

OFF OFF Compression disabled at power-on. The host is

allowed to control compression.

OFF ON Compression disabled at power-on. The host is not

allowed to control compression.

ON OFF Compression enabled at power-on. The host is

allowed to control compression.

ON ON Compression enabled at power-on. The host is not

allowed to control compression.

2-5

Compaq DAT AutoLoader Reference Guide

2-6

Preparing the Computer

CAUTION:

sure you are properly grounded before beginning this procedure. See Appendix B,
“Electrostatic Discharge” for further information.

To prepare the computer:

1. Perform a normal system shutdown.

2. Turn OFF the computer and all peripheral devices.

3. Disconnect the AC main power cord from the outlet, then from the

computer and from all peripheral devices.

4. Disassemble the system to expose the drive bay (see documentation
included with your computer for instructions on accessing the
removable media drive bays).

Electrostatic discharge (ESD) can damage electronic components. Be

Installing the DAT AutoLoader

NOTE:

Your computer may differ slightly from the following illustrations.

To install the Autoloader with drive rails:

1. Slide the DAT AutoLoader partially into an available removable media
bay.

Figure 2-3. Installing the DAT AutoLoader with drive rails

2. Connect the SCSI signal cable and the power cable (supplied).
(See Figure 2-5.)

3. Carefully slide the DAT AutoLoader the remainder of the way in,
adjusting the connecting cables if needed to allow the AutoLoader to be
fully inserted.

4. Insert two screws in the front plate using a Torx-15 screwdriver.

To install the Autoloader without drive rails:

1. Remove all screws from drive rails using a Torx-15 screwdriver.

2. Slide the AutoLoader partially into an available removable media bay.

Installation

2-7

Figure 2-4. Installing the DAT AutoLoader without drive rails

3. Connect the SCSI signal cable and the power cable (supplied).
(See Figure 2-5.)

4. Carefully slide the DAT AutoLoader the remainder of the way in,
adjusting the connecting cables if needed to allow the AutoLoader to be
fully inserted.

5. Use the screws that were removed from the drive rails and insert two of
them into the threaded mounting holes on each side.

NOTE:

Some drives may not be accessible on both sides. Secure the sides that are

accessible.

Compaq DAT AutoLoader Reference Guide

2-8

Figure 2-5. Connecting signal and power cables

Reassembling the Computer

To reassemble the computer:

1. Replace the access panel.

2. Reconnect the peripheral devices to the computer.

WARNING:

do not disable the power cord grounding feature. This equipment is designed for
connection to a grounded (earthed) power outlet. The grounding plug is an
important safety feature.

3. Plug the AC main power cord into the computer, then plug the cord into
a grounded AC outlet.

4. Turn ON all peripheral devices.

5. Turn ON the computer.

To reduce the risk of electric shock or damage to your equipment,

Connecting the Tabletop AutoLoader

For the tabletop DAT AutoLoader, follow the procedures below to connect to
a Compaq computer:

1. Set the SCSI ID using the switch at the rear of the DAT AutoLoader
(See Figure 2-6). The SCSI ID switch can be adjusted by using a pencil
or similar object to click the “+” and “-” buttons. The SCSI ID default
is 6.

Installation

2-9

1

Figure 2-6. External AutoLoader SCSI and options switches

2. Set the configuration switches located on the bottom 1 of the
AutoLoader, if required. See the previous section, “Switch Settings,” for
switch descriptions and settings.

3. Connect the SCSI signal cable from the computer to one of the two
SCSI connectors at the rear of the tabletop DAT AutoLoader.

4. Connect the external terminator (provided with the tabletop DAT
AutoLoader kit) to the unused SCSI connector.

Compaq DAT AutoLoader Reference Guide

2-10

NOTE:

mode. The color red does not indicate an error. (See Figure 2-7.)

Figure 2-7. Terminator

The Compaq-provided LVD/SE terminator will be lit solid red in the single-ended

1

IMPORTANT:

Connect the SCSI cable between the AutoLoaders and then connect the terminator to the
unused connector on the second AutoLoader.

To “daisy chain” another DAT AutoLoader, remove the external terminator.

5. Connect the power cord.

Completing the Installation

To complete the installation of the Compaq 20/40 GB DAT 8-Cassette
AutoLoader, install the device drivers. See Chapter 3, “Installing Software
Drivers,” for specific driver installation information.

Chapter

Installing Software Drivers

The following operating environments support the AIT tape drives:

Microsoft Windows NT

■

Novell NetWare

■

Compaq Tru64 UNIX

■

OpenVMS

■

SCO OpenServer

■

SCO UnixWare

■

3

SunSoft Solaris

■

Banyan VINES

■

Device Drivers

Drivers are located on the Support Software Diskettes and on the Compaq
SmartStart and Support Software CD. The drivers on the Support Software
Diskettes may be newer versions than drivers you currently are using with new
functionality and upgraded utilities. You can use SmartStart to create Support
Software Diskettes for specific operating systems.

Compaq DAT AutoLoader Reference Guide

3-2

Microsoft Windows NT

Drivers for the SCSI controllers and tape drive hardware are located on
Support Software Diskettes and on the Compaq SmartStart and Support
Software CD. The Support Software ships with each computer or can be
downloaded from the Compaq website. The software tape device driver is
located either with your tape backup software or with the operating system.
Refer to your backup application installation guide for more information
regarding additional software that might be needed

.

Table 3-1

Microsoft Windows NT

Controller Software Driver Information

32-Bit Fast SCSI-2 Controllers

■

32-Bit Fast-Wide SCSI-2 Controllers

■

Wide-Ultra SCSI Controllers

■

LVD Wide SCSI Controllers

■

IMPORTANT:

your initial Windows NT installation, install the SCSI device driver for the controller
installing the tape class driver.

If the SCSI controller to which your drive is attached was not present during

Refer to "Compaq SCSI Controller Support" in

NTREADME.HLP

the
Support Software for Microsoft Windows NT
diskette, Version 1.21 or later.

file on the Compaq

before

Refer to “Compaq Tape Support” in the NTREADME.HLP file on the Compaq
Support Software for Microsoft Windows NT diskette.

Novell NetWare

Drivers for the SCSI controller and tape drive hardware are located on Support
Software Diskettes and on the Compaq SmartStart and Support Software CD.
The Support Software ships with each computer or can be downloaded from
the Compaq website. The software tape device driver is located either with
your tape backup software or with the operating system. Refer to your backup
software application installation guide for more information regarding
additional software that might be needed

32-Bit Fast SCSI-2 Controllers

■

Wide-Ultra SCSI Controllers

■

LVD Wide SCSI Controllers

■

Be sure to load drivers in accordance with the Compaq controller being used.

Installing Software Drivers

.

Table 3-2

Novell NetWare

Controller Software Driver Information

README.COM

Run the
Novell Software Support Diskettes (NSSD)
for driver installation instructions.

file on any of the

3-3

There are additional driver issues if you wish to use applications requiring the
Advanced SCSI Programming Interface (ASPI) support. For more information
see the following section.

ASPI Support

The README.COM on the Novell Software Support Diskette (NSSD)
outlines the specific drivers you need to support ASPI tape backup
applications.

If you are using a tape backup application that uses the ASPI, such as
ARCserveIT from Compaq or VERITAS BackupExec, refer to the information
provided with your application NLM to determine whether it uses ASPI.

The Compaq ASPI drivers, CPQSASPI.NLM Device Driver Functional
Specification (DDFS) and NWASPI.NLM NetWare Peripheral Architecture
(NWPA), provide ASPI support for the Compaq SCSI architecture for
applications that require this interface.

All of the required drivers for ASPI tape support are provided on the Novell
Software Support Diskette (NSSD). The Support Software ships with each
computer or can be downloaded from the Compaq website.

Compaq DAT AutoLoader Reference Guide

3-4

The SCSI.RDM file on the NSSD diskette gives complete instructions on how
to load these drivers and troubleshoot any problems.

Compaq Tru64 UNIX

Drivers for the SCSI controller and tape drive hardware are located on Support
Software Diskettes and on the Compaq SmartStart and Support Software CD.
The Support Software ships with each computer or can be downloaded from
the Compaq website. Software support is version 4.0F or later.

The Tru64 UNIX operating system uses Dynamic Device Recognition (DDR),
which allows the operating system to recognize the DAT drive without a
software tape device driver.

If the following message is seen on any version of Tru64 UNIX, it should be
considered an informational message only. No action is required.

ctape_ioctl: unmapped scsi density code (0x30)-DDR entry needed

NOTE:

If the drivers are unseen after installation, you need to rebuild the kernal. See

Chapter 6, “Troubleshooting,” for additional information on where to go for help.

OpenVMS

Drivers for the SCSI controller and tape drive hardware are located on Support
Software Diskettes and on the Compaq SmartStart and Support Software CD.
The Support Software ships with each computer or can be downloaded from
the Compaq website. Software support is version 7.12 or later.

The OpenVMS operating system uses Dynamic Device Recognition (DDR),
which allows the operating system to recognize the AIT drive without a
software tape device driver.

SCO OpenServer

The drivers required to support the DAT tape drive under SCO UNIX are:

The SCO SCSI tape (

■

see the SCO System Administrator’s Guide for information on how to
configure the driver.

An appropriate SCSI controller driver.

■

) driver, which is built into SCO OpenServer;

stp

Installing Software Drivers

Drivers for the SCSI controllers and tape drive hardware are located on the
Support Software Diskettes and on the Compaq SmartStart and Support
Software CD. The Support Software ships with each computer or can be
downloaded from the Compaq website. The software tape device driver is
located either with your tape backup software or with the operating system.
Refer to your backup application installation guide for more information
regarding additional software that might be needed

.

Table 3-3

SCO OpenServer

Controller Software Driver Information

3-5

32-Bit Fast SCSI-2 Controllers

■

32-Bit Fast-Wide SCSI-2 Controllers

■

Wide-Ultra SCSI Controllers

■

LVD Wide SCSI Controllers

■

In addition, the appropriate version of the Compaq Extended Feature
Supplement (EFS) for SCO OpenServer is required:

For SCO OpenServer 5, use Compaq EFS version 5.16 or later.

■

EFS for SCO OpenServer is available on both the Compaq SmartStart and
Support Software CD and is installed and configured automatically during a
SmartStart installation.

Configuring the SCSI ID for SCO OpenServer

In the pre-configured kernel used to install SCO OpenServer, the following
SCSI IDs are automatically set:

Disk = 0

■

Tape = 2

■

CD-ROM = 5

■

Refer to the appropriate
Compaq Support Software CD.

The name of the driver is

README

CHA.

on the

To determine the SCSI ID of the new tape drive (if not known):

Run System Configuration and look under “Review or Modify

1.

Hardware Settings,” then “View and Edit Details.” The values reported
for controller number, target ID, LUN, and bus number are used during
mkdev tape.

Boot the computer to single user mode and run the

2.

mkdev tape

command.

Compaq DAT AutoLoader Reference Guide

3-6

Remove the default tape device from controller 0, ID 2.

3.

Add the new tape drive to the configuration.

4.

Relink the kernel and reboot the computer to multi-user mode.

5.

Run the

6.

correct. The information appears in a line such as:

%tape - - - type= S ha=0 id=2 lun=0 ht= ...

In the above example, “id=2” indicates that the SCSI ID is 2.

See the section “Setting the SCSI ID,” in Chapter 2 for more information on
setting the SCSI ID.

IMPORTANT:

controller in the system. Remove the generic tape at ID2, then add the correct tape driver
using correct ID, bus, and LUN values.

SCO UnixWare

The drivers required to support Compaq SCSI tape drives under SCO UNIX
are the SCO SCSI tape (stp) driver and an appropriate SCSI controller driver.
The stp driver is built into SCO UNIX. Consult the SCO System
Administrator’s Guide for directions on how to configure the SCSI tape driver.

The table below describes the drivers required to support current Compaq
SCSI controllers.

hwconfig

command to ensure the new tape configuration is

SCO OpenServer’s install kernel only communicates with the first SCSI

Table 3-4

SCO UnixWare

Controller Software Driver Information

32-Bit Fast SCSI-2 Controllers

■

32-Bit Fast-Wide SCSI-2 Controllers

■

Wide-Ultra SCSI Controllers

■

LVD Wide SCSI Controllers

■

Refer to the documentation accompanying
the Compaq Support Software for SCO
UnixWare. Versions 2.x to 7.x. or Compaq
EFS 2.2x for UnixWare 2.1 or Compaq EFS

7.2x for UnixWare 7.x. The required driver is
CPQSC.

EFS for SCO UnixWare is available on the Compaq Support Software CD and
on Compaq SmartStart. The Compaq EFS for SCO UNIX is installed and
configured automatically during a SmartStart installation.

Compaq SmartStart and Support Software ships with each computer or can be
downloaded from the Compaq website.

SunSoft Solaris

The table below provides information on identifying appropriate drivers for
SCSI controllers.

Installing Software Drivers

Table 3-5

SunSoft Solaris

Controller Software Driver Information

3-7

32-Bit Fast SCSI-2 Controllers

■

32-Bit Fast-Wide SCSI-2 Controllers

■

Wide-Ultra SCSI Controllers

■

LVD Wide SCSI Controllers

■

For Solaris 2.5.1, refer to the online
documentation on the Solaris 2.5.x OS CD
and Driver Update II (DUII) version 1.2.1 or
higher.

For Solaris 2.6, refer to the online
documentation on the Solaris 2.6 OS CD and
Driver Update 3 (DU3) version 1.2.1 or higher.

For Solaris 2.7, refer to the Solaris 2.7
Installation Manual. The required driver is
CPQNCR.

Compaq DAT AutoLoader Reference Guide

3-8

Banyan VINES

The table below provides information on identifying appropriate drivers for
Compaq SCSI controllers.

Table 3-6

Banyan VINES

Controller Software Driver Information

32-Bit Fast SCSI-2 Controllers

■

32-Bit Fast-Wide SCSI-2 Controllers

■

Wide-Ultra SCSI Controllers

■

LVD Wide SCSI Controllers

■

Refer to the documentation from Banyan
regarding the “Compaq Fast SCSI-2 / 53C710
EISA SCSI” driver.

To ensure proper controller support, the
Compaq Peripheral Adapter Support Software
for Banyan VINES 6.x, 7.x, and 8.x, version

3.05 or later is required. Refer to the SSD
documentation file,
the “Compaq Wide-Ultra SCSI Controller”
driver.

README.SSD

regarding

Chapter

Operation

This chapter describes the following operations of the Compaq DAT
AutoLoader:

Introduction to magazines and cassettes

■

Loading the magazine with cassettes

■

Loading the magazine into the AutoLoader

■

Ejecting magazines and cassettes

■

Modes of operation

■

Identifying the front panel

■

4

LCD message categories

■

LCD menu screens

■

Introduction to Magazines and Cassettes

When purchasing DDS cassettes:

Always use cassettes labeled “DDS Media Recognition System” in the

■

drive. To use the full potential of the drive, make sure that they are
DDS-4 cassettes.

■

Never use DAT cassettes because the media is not certified and they can
have a different specification that can cause them to jam in the
mechanism (see Chapter 1 for cassette specifications).

4-2 Compaq DAT AutoLoader Reference Guide

Labeling Cassettes and the Magazine

Each cassette and the magazine should be labeled prior to use. To label a
cassette follow the manufacturer’s instruction included with each cassette. To

label the magazine, place the label on 1 space provided (see Figure 4-1).

Figure 4-1. Magazine identification

To prevent jams:

■ Insert cassettes all the way into the magazine.

■ Ensure the label corners are affixed firmly on the cassettes and

magazine ➊.

■ Only paste labels to the surface and make sure there are no curled edges.

■ Never paste labels on top of other labels.

IMPORTANT: Cassettes should be stored in their magazines so that they are kept
together and in the correct order when multi-volumes are backed up.

Loading the Magazine with Cassettes

The magazine holds eight cassettes. There are only three allowable magazine
configurations:

■ Eight-cassette configuration

■ Seven-cassette configuration

■ Single-cassette configuration

Operation

4-3

IMPORTANT:

recognize all the cassettes.

If the magazine is loaded any other configuration the AutoLoader will not

Eight-Cassette Configuration

Compaq recommends using this configuration. Place cassettes in all eight
positions. Eight data cassettes can be used or seven data cassettes and one
cleaning cassette (placed in position 8 only) can be used.

Figure 4-2. Magazine with tape positions

7 6 5

Front

Figure 4-3. Eight cassette positions

8 4

1 2 3

Rear

Compaq DAT AutoLoader Reference Guide

4-4

Seven-Cassette Configuration

Cassettes are inserted in all positions except position 8.

7 6 5

Front

1 2 3

Figure 4-4. Seven cassette positions

Single-Cassette Configuration

For this operation the cassette must be inserted in position 8. It can be either a
data cassette or a cleaning cassette.

Front

Figure 4-5. Single cassette position

IMPORTANT:

■

■

8

The AutoLoader will:

Default to a single cassette configuration if there is a cassette in position 8 but less
than 7 cassettes in the other positions

Eject the magazine if there isn’t a cassette in position 8 and all the other positions
are not full.

4

Rear

Rear

To Load the Magazine With Cassettes

For backup and restore place labeled cassettes into the magazine as described
below:

Figure 4-6. Inserting cassettes 3, 2, and 1 into the magazine (Slot 3)

Insert the cassettes into the magazine positions in the following order:

1.

3, 2, and 1 (in slot 3). See Figure 4-6.

Operation

4-5

NOTE:

Insert the DDS4 logo side up with the logo end going in first.

Figure 4-7. Inserting cassettes 4,5,6 and 7 into the magazine (Slot 1)

Insert the next four data cassettes in positions: 4, 5, 6, and 7 (in slot 3).

2.

See Figure 4-7.

Compaq DAT AutoLoader Reference Guide

4-6

For an eight-cassette configuration, insert a cassette in position 8.

3.

CAUTION:

placed during backup.

The cassettes must be loaded in the order they were originally

Loading the Magazine into the AutoLoader

Insert the magazine into the front opening on the AutoLoader in the direction
of the arrow. The AutoLoader pulls the magazine in the rest of the way.

Figure 4-8. Loading the magazine into the DAT AutoLoader

The AutoLoader does a rotation check of the cassettes. If there is an incorrect
cassette configuration the AutoLoader ejects the magazine. See “Loading the
Magazine with Cassettes” for the correct configurations.

Removing the Cassettes from the Magazine

NOTE:

Compaq recommends storing the magazine with the cassettes loaded to ensure

they are in the correct order.

Hold down the magazine stopper ➊ in the direction of the arrow while

1.

removing cassettes.

Figure 4-9. Slide stopper

2. To remove cassettes in positions 1 through 5 use the access slots on the

bottom of the magazine to slide the cassettes out the front of the
magazine.

3. Turn the magazine opening slots up. Gently tap the unit until the

cassettes in positions 6 and 7 drop to the bottom slots.

Operation 4-7

4. Repeat steps 1 and 2.

5. Press the magazine stopper down to pull the cassette from position 8.

Ejecting the Magazine

To eject a cassette magazine from the DAT AutoLoader, press the Eject
button or issue an UNLOAD command from the host. The following sequence
of events occurs:

1. The tape is rewound to BOP (Beginning of Partition).

2. If the tape is write-enabled, the copy of the tape log held in RAM is

written back to the tape.

3. The tape is then rewound to BOM (Beginning of Media) and

unthreaded.

4. The AutoLoader replaces the cassettes in the magazine in the correct

order.

5. The magazine is ejected.

Compaq DAT AutoLoader Reference Guide

4-8

If the host sends an UNLOAD command (LOAD/UNLOAD with the LOAD
bit set to 0), the same procedure is completed, but the magazine is not ejected
at the end.

If you press the Eject button during the 30 seconds when the DAT
AutoLoader checks magazine positions following insertion of a magazine, the
magazine is ejected immediately, even if Medium Removal Prevention is in
force.

If the host has previously sent a PREVENT MEDIA REMOVAL command,
the unloading action is different in two ways:

The Eject button is disabled and has no effect. It does not initiate an

■

unload sequence.

An UNLOAD command puts the drive into a semi-loaded state. It takes

■

the drive offline and unthreads the tape, but does not eject it.

The effects of PREVENT MEDIA REMOVAL continue until an ENABLE
MEDIA REMOVAL command is received, or the drive is reset.

Forcing Cassette Ejection

CAUTION:

end up invalidly formatted because EOD (End of Data) may not have been
written. Force ejection only as a last resort to recover a cassette. Never use it as
a quick way of ejecting a cassette.

You can lose data if you force ejection of a tape. The tape may also

If you press the Eject button when the drive is busy, it may be a long time
before the drive responds to the request, because it is finishing the task it is
performing first. This method ensures that the task is terminated in a
controlled manner, and no data is lost.

However, if you need to unload a cassette urgently, even at the risk of losing
data, you must force ejection as follows:

Hold the Eject button down for at least 5 seconds. The LCD displays

1.

“Force Eject.”

The DAT AutoLoader waits 35 seconds to give the normal ejection

2.

procedure a chance to occur.

Once this time has elapsed, if there is a tape loaded in the drive, it is

3.

immediately unthreaded and the cassette is ejected, regardless of what
operation the drive was performing. The cassette is then returned to its
position in the magazine, and the drive is reset as though the power has
been cycled.

Operation

Because the forced ejection may interrupt any operation, it is possible
that the drive will not write EOD (End of Data) before the cassette is
ejected. This will cause loss of data, and result in a cassette with an
invalid format. However, it should still be possible to read such a
cassette up to the point where the ejection interrupted the writing.

If no cassette is loaded in the drive, the DAT AutoLoader assumes that

4.

you want to eject the magazine. Following the 35 seconds, it does eject
the magazine. The DAT AutoLoader is then reset as though power had
been cycled.

4-9

IMPORTANT:

in effect, and can abort any SCSI operations in which the DAT AutoLoader is engaged.

Forced ejection overrides any SCSI PREVENT MEDIA REMOVAL that may be

Modes of Operation

The DAT AutoLoader can operate in either Stacker or Random mode.

Stacker Mode

In Stacker mode (also known as sequential mode), a cassette can be selected
using the Select and Enter buttons on the front panel. When a cassette is
ejected from the embedded drive after a host UNLOAD command, the DAT
AutoLoader automatically moves the next available cassette from the
magazine into the drive. In this mode the DAT AutoLoader does not depend
on the host computer to send SCSI MEDIUM CHANGER commands to move
cassettes to and from the magazine.

Random Mode

The AutoLoader enters this mode when it receives a SCSI MOVE MEDIUM
command. The Select button is disabled. The Eject button or SCSI UNLOAD
command will cause the AutoLoader to exit this mode.

4-10 Compaq DAT AutoLoader Reference Guide

Front Panel

Figure 4-10. Identifying the front panel features

Callout Description Feature

1

2

3

4

5

6

7

Tape LED Shows when a cassette is present
Busy LED Shows when activity is taking place
Magazine Position Where the magazine is inserted and ejected
Select button Selects a cassette for use
Eject Button Starts the unload process then ejects
Enter Button Confirms cassette selection
Liquid Crystal Display Shows the status of the AutoLoader

Liquid Crystal Display (LCD)

The LCD display provides information about the DAT AutoLoader.

NOTE: The exact display shown can never occur; all the sections are shown at the same
time to show their location.

Operation 4-11

Figure 4-11. Front panel LCD display

Callout Feature Callout Feature

1

2

3

4

Cassette numbers
Data Compression
Type of Cassette in drive
Write Protect Indicator

5

6

7

Cassette position in drive
Cassette motion in drive
Text Area (up to 4 lines)

Compaq DAT AutoLoader Reference Guide

4-12

LCD Messages

Front panel LCD messages are provided in list Table 4-1.

Table 4-1

LCD Messages - Alphabetical Listing

LCD Message Message

Type

Cassette Stuck In
Drive

Cleaning
in
Process

Cleaning
Failed

CleanReq

CleanReq Error It is time to clean the heads on the drive or a high error rate

Drv HW
Error

04xxxxxx

Eject
Prevent

Error A cassette is stuck in the drive.

Status A cleaning cassette has been loaded into the drive

mechanism and is cleaning the heads. The cleaning cassette
will be automatically returned to the magazine when the
cleaning cycle is complete.

Error The cleaning cassette is used up. Replace the cleaning

cassette and discard the old one.

has been detected reading or writing. Move the cleaning
cassette from the magazine to the drive (if necessary, load a
cleaning cassette into the magazine). The cleaning cycle will
automatically start once the cleaning cassette is loaded in the
drive. See “Cleaning in Process.”

Error This is an embedded-drive hardware error. In some cases the

SCSI error code generated will be displayed on the 3
M4sxxsxx where the xx’s represent the additional sense code
and qualifier.

Info This is displayed when the SCSI command “PREVENT MEDIA

REMOVAL” has been set, and the
pressed. Th SCSI command prevents the cassette or
magazine from ejecting.

Meaning

Eject

button has been

rd

line as

Ejecting
Magazine

Info

This is displayed after the
magazine is being ejected.

Eject

button is pressed and the

continued

Table 4-1
LCD Messages - Alphabetical Listing

LCD Message Message

Type

continued

Meaning

Operation

4-13

Erase
Tape x

Illegal
Cassette
Config

Illegal
Magazine
Config

Init
Element
Status

Ldr HW
Error
ResetReq

04xxxxxx

Load
Tape x

Locate
Tape x

Status The drive is erasing data from the cassette x where x

represents the cassette number.

Error This is an error message. A cassette was inserted in the

magazine incorrectly. The magazine will be ejected with the
incorrect cassette in position 7 or 8. Remove all cassettes
and reinsert them correctly, making sure they are put back in
the original positions they were in when first loaded in the
magazine.

Error This is an error message. This occurs when there is at least

one, but less than seven cassettes in positions 1 through 7.
The magazine will eject. Reload according to one of the
configurations in the section, “Loading the Magazine With
Cassettes.”

Info The AutoLoader is moving all cassettes back to their original

positions.

Error This is an AutoLoader hardware error. In some cases the 4

line can display additional information about the problem or it
can display the SCSI error code generated as M4sxxsxx
where the xx’s represent the additional sense code and
qualifier.

Status Loads cassette x into the drive, where x represents the

number of the cassete being loaded.

Status The drive is finding a location on the tape specified by the

host. x represents the number of the cassette.

th

Magazine
Eject

Magazine
Loading

Medium
Error

03xxxxxx

Move
Medium
x => Drv

Status The DAT AutoLoader is ejecting the magazine.

Status Indicates a magazine has been inserted and is moving into

position in the AutoLoader.

Error This is a medium error. There was a problem reading or

writing data to the cassette. A SCSI error code can be
displayed on the 3

rd

line as M3sxxsxx where the xx’s

represent the additional sense code and qualifier.

Error Moves cassette x from the magazine to the drive, where x

represents the cassette number.

continued

Compaq DAT AutoLoader Reference Guide

4-14

Table 4-1
LCD Messages - Alphabetical Listing

LCD Message Message

Move
Medium
x => Mag

No Magazine Status There is no magazine in the AutoLoader. The DAT AutoLoader

continued

Meaning

Type

Error Moves cassette x from the drive to the magazine, where x

represents the cassette number.

is ready for a magazine to be inserted.

Read
Tape x

Ready Status A magazine has been loaded in the AutoLoader and the

Ready
Tape x

Scan 1
Scan 2, etc

Select
Prevent

Select x
Load
Tape x

Select x
Push ENT

Select x
Unload
Tape y

Status Cassette x is being read.

x represents the number of the cassette.

Autoloader has completed scanning the cassettes and is
ready for operation.

Status Cassette x has been loaded into the drive and is ready for

operation. x represents the number of the cassette.

Status The DAT AutoLoader is examining the cassettes in the

magazine to check for proper magazine loading and
configuration.

Info This message is displayed if the SCSI command “PREVENT

MEDIA REMOVAL (LUN=0)” has been sent and the
button is pressed.

Info The cassette that has been selected is moving from the

magazine into the drive.

Info

Pressing the

Select

If
cassette, else the “Push ENT” will also be displayed. To load
cassette x press the
couple seconds, the command is cancelled. x represents the
cassette number.

Info Cassette y is being returned to the magazine from the drive

so that cassette x can be loaded.
x and y represent different cassette numbers.

Select

button displays the message “Select x”.

is pressed again, x will increment to the next

Enter

button. If no button is pushed for a

Select

Send Diag
Checking
Mecha

Status The diagnostics are checking the AutoLoader mechanics,

such as the elevator, and so on.

continued

Table 4-1
LCD Messages - Alphabetical Listing

LCD Message Message

Type

continued

Meaning

Operation

4-15

Space
Tape x

TSL10000
Self-Test
Complete

Unload
Tape x

Updating
Firmware

Verify
Tape x

Write
Tape x

Status The drive is moving the cassette x media to a specific

location on the media. x represents the cassette number.

Status The DAT AutoLoader has performed its power-on self-test.

Status A cassette is being ejected from the drive and returned to the

magazine.
x represents the cassette number.

Status Firmware upgrade data is being read either from a cassette

or the SCSI bus.

Status The drive is verifying data on cassette x.

x represents the cassette number.

Status The drive is writing data to cassette x.

x represents the cassette number.

Compaq DAT AutoLoader Reference Guide

4-16

LCD Menu Screens

To enter the menu mode, press and hold the select button for 5 seconds. The
AutoLoader will exit the menu mode if no button is pressed within a 5-second
period.

Menu Screen Features

Table 4-2

LCD Menu Screens

>Version

Auto Load
Unload
Contrast
Orientation
Language

TSL10000
SCSI ID#5
Ver.0000
S/NLxxxxxxxx
S/NDxxxxxxxx

Auto Load

>OFF
ON

Unload
Continuous

>OFF
ON

Contrast
Adjustment

The main menu screen. Pressing the
to the next item on the menu: Prdrives.

Pressing the

The version screen displays information about the autoloader including
autoloader and drive serial numbers.

The auto load screen allows the auto load feature to be turned on or off.
Pressing the

Enter

the
AutoLoader is in the one cassette mode, the AutoLoader automatically
loads the cassette into the drive.

The Unload Continuous OFF selection only affects the AutoLoader when:

1) the AutoLoader is loaded with 8 cassettes, in the 8 cassette mode, 2)
cassette #8 is in the drive and 3) a SCSI unload command is issued. The
Autoloader will unload cassette #8 and stop.
If Unload Continuous is ON, the AutoLoader will unload cassette #8 and
then load cassette #1 into the drive. Pressing the
the arrow to the next item on the menu. Pressing the
selects that mode.

The contrast adjustment screen allows the display’s contrast to be
adjusted. Pressing the
contrast is reached. Pressing
minimum contrast. The number of darkened bars (see Figure 4-10,
Cassettes position) on the bottom indicates the relative magnitude of the
contrast.

Enter

button selects that sub menu.

Select

button moves the arrow to the other mode. Pressing

button selects that mode. When auto load is ON and the

Select

Select

button advances the arrow

SELECT

button moves

ENTER

button

button increases contrast until maximum

Select

again changes the display to

continued

Table 4-2
LCD Menu Screens

Menu Screen

continued

Operation

4-17

Orientation

>Horizontal

R-side down
L-side down

Language
>English

French
German
Spanish

The orientation screen allows a different display orientation to be
selected when the drive is mounted on a different axis. Pressing the

Select

button will advance the arrow to the next item on the menu.

Pressing the

This is the language screen. Pressing the
arrow to the next language on the menu. Pressing
that language. Then all messages will be displayed in that language.

Enter

button will select that orientation.

Select

button advances the

Enter

button selects

Chapter

5

Cleaning

Reliable backup of your system is the product of at least four components:

A reliable tape drive

■

Quality tape cassettes

■

Regular backup schedule with backup media stored offsite

■

Routine tape drive maintenance

■

The Compaq 20/40 GB DAT 8-Cassette AutoLoader is designed to operate
reliably under worst case conditions; however, it requires simple routine
maintenance to operate efficiently. Regular cleaning is the most essential step
in properly maintaining a tape drive and preventing errors.

For more information about cleaning Compaq tape drives, refer to the Compaq
website address: http://www.compaq.com. Once on the site, search for
“Whitepapers.”

Importance of Routine Cleaning

IMPORTANT:

Failure to follow recommended cleaning procedures could result in serious damage to
your tape drive. Compaq recommends a routine cleaning every 100 hours of use.

Routine cleaning of a tape drive minimizes buildup on the read/write heads so
that fewer cleaning cycles are required to keep the tape drive in good working
order. When a tape drive is cleaned according to a regular schedule, one
cleaning cycle typically removes accumulated dirt and particle deposits. If the

Regular cleaning is vital to trouble-free operation of any tape device.

Compaq DAT AutoLoader Reference Guide

5-2

drive is not cleaned regularly, however, up to 4 cleaning cycles may be
necessary to fully clean the drive.

Compaq recommends a routine cleaning schedule every 100 hours of use. In
addition, the drive should be cleaned whenever the front panel LCD indicates.

Not all tape drives require the same frequency of cleaning to keep them
operating efficiently. Factors such as the design of the tape drive and the
quality of the tape media used for backups affect cleaning frequency.

Errors Resulting from Cleaning Neglect

Following are some of the errors that can result from failure to observe routine
maintenance and cleaning of tape drives:

Dropouts — Caused by weak signal strength from dirty read/write

■

heads, a dropout can result in reduced tape capacity and backup
performance.

Media errors — The backup tapes can be jammed, torn, or otherwise

■

damaged by a dirty read/write head.

Read or write errors — Because of a dirty read/write head, data may not

■

have been recorded on the tape during backup. Even if the data is on the
backup tape, retrieval may not be possible if the dirty head cannot read
the data.

Format failures — During backup, data is laid on the tape in a certain

■

format for easy retrieval. A dirty write head can cause format failures,
which means that data can be lost or impossible to retrieve.

Bad blocks — Because of media damage (see Media errors above), the

■

tape may not accept backup data. Also, the read/write head may be
unable to retrieve data from bad blocks.

Importance of Compaq-Approved Tape Cassettes

Compaq-approved tape cassettes are thoroughly tested to meet high-quality
standards. Before Compaq recommends a tape cassette, the quality and
reliability of the magnetic media and the cassette are evaluated. Do not use
unapproved tape cassettes because they may not be compatible with Compaq
tape drives.

See Chapter 1 for a list of Compaq-approved tape cassettes.

DAT AutoLoader Cleaning Recommendations

Of the tape drives available today, DAT drives are more susceptible to buildup
of contaminants. If a DAT drive is not kept clean, increased errors will occur.
Recommendations for cleaning DAT drives are as follows:

If the CLEANREQ message is displayed on the front panel.

■

When using new tape cassettes, clean the drive heads with a cleaning

■

cassette after every 8 hours of use for 5 initial cleanings.

Cleaning

5-3

When using tape cassettes that have already been used 5 times, clean the

■

drive heads with a cleaning cassette after every 100 hours of use.

If you begin to experience read or write errors, format failures, or a

■

number of bad blocks, clean the head and capstan 3 more times before
concluding that either the tape or the tape drive is defective.

In a dusty environment, one cleaning cycle may not fully clean the DAT

■

AutoLoader drive read/write heads. If backup software reports errors,
clean the drive again. No more than four cleanings will be required to
ensure that heads are fully clean.

Cleaning cassettes can be used approximately 50 times. An expired cleaning

NOTE:

cassette will eject immediately without cleaning.

CAUTION:

cleaning solution to clean DAT drives.
cotton swab. Fibers from a cotton swab can cause permanent damage to the
head.

No other periodic maintenance is required.

clean read/write heads with a

Do Not

Do Not

use alcohol or

Compaq DAT AutoLoader Reference Guide

5-4

Procedure for Cleaning the Heads in Stacker Mode

Place the cleaning cassette into one of the magazine positions (for

1.

example, position 8) and insert the magazine into the DAT AutoLoader.

Use the Select button to select the magazine position in which you

2.

placed the cleaning cassette.

Press the Enter button to load the cleaning cassette into the drive. The

3.

DAT AutoLoader will then automatically perform a cleaning cycle.

At the end of the cleaning cycle, the drive automatically ejects the

4.

cassette and the AutoLoader replaces it in the magazine.

Note the date on the label on the cleaning cassette, so that there is a

5.

record of how many times it has been used. After 50 uses, discard the
cassette.

IMPORTANT:

amount of data that can be backed up to the magazine, since it will only have seven
positions available for data cassettes.

If a cleaning cassette is left permanently in the magazine, it will reduce the

Procedure for Cleaning the Heads in Random Mode

The host sends a MOVE MEDIUM command to move the cleaning

1.

cassette from the magazine to the drive. The DAT AutoLoader will only
recognize the cleaning cassette once it is loaded into the drive.

The drive will then automatically perform a cleaning cycle.

2.

The drive automatically ejects the cassette after the cleaning cycle is

3.

complete. The AutoLoader returns the cassette to its magazine position
without further host involvement.

In Random mode, the host can program a routine cleaning cycle (for example,
once a week). The cleaning cassette remains in a set position, such as, position
8, ready for use at the designated time. Remember that this will reduce the
amount of data you can back up to the magazine, since you will only have
seven positions available for data cassettes.

If a problem occurs with the Compaq 20/40 GB DAT 8-Cassette AutoLoader,
the first step is to try and establish whether the problem lies with the cassette,
the DAT AutoLoader, the host computer and connections, or the way the
system is being operated.

Quick Checklist

Listed below are some hardware and software related items that potentially
could cause DAT AutoLoader failures. These items are covered in more detail
under Eliminating Resource Conflicts, Installation, and Resolving Operating
Problems.

Chapter

6

Troubleshooting

Hardware

Make sure the following tasks have been properly completed:

Determine whether the cassette is the cause of the problem:

■

! Check that you are using a DDS-labeled cassette. Do not use a

non-DDS cassette.

! Are you trying to write to non-MRS media? (See Chapter 1, “DDS

Logo Media.”)

! Is the cassette write-protected?

! If the problem still occurs, try using a different cassette.

Compaq DAT AutoLoader Reference Guide

6-2

■

Determine whether the Autoloader is the cause of the problem:

!

The DAT AutoLoader heads have been cleaned within the last eight
hours of use.

! Verify the DAT AutoLoader switches and jumpers have been set

correctly.

! The power and signal cables are connected correctly and the

controller is seated properly.

! If multiple SCSI devices are used, be sure that each device has a

unique SCSI ID.

!

The DAT AutoLoader passes the Compaq Diagnostics test.

!

Check to make sure you have the latest Options ROMPaq.

! Run Compaq System Configuration Utility and check for conflicts.

Software

Make sure that:

The correct software drivers are being used. (Make sure that the

■

operating system driver for the DAT AutoLoader matches the drive
type.)

The tape backup software supports the DAT AutoLoader hardware you

■

are using.

If none of these software problems above apply, try reinstalling the tape
backup software.

Installation Troubleshooting

Follow the procedures in this section if the tape drive has not been operational
since it was installed in the computer. Turn on the computer and insert the
tape.

Installation Troubleshooting

Problem Try This

Table 6-1

Troubleshooting

6-3

Tape light on the tape
drive does not turn on

Tape light on the tape
drive turns on but drive
does not respond to
commands

System Configuration
Utility does not
recognize the tape drive

Make sure the tape drive power cable is connected.

■

Remove the signal cable from the tape drive. If the light

■

starts working, check for a defective cable, an incorrectly
installed cable, or a defective controller.

Replace the tape drive.

■

Run the Compaq System Configuration Utility from the hard
drive or from diskette and restart the computer. Configure all
boards in the system, then check the following:

Verify that all installed boards appear in the slot diagram.

■

Add any missing boards.

Verify that the switch settings shown by the Compaq

■

System Configuration Utility match the physical settings
used on the boards. Ensure that the board settings match
the settings shown by the utility.

Check the connections of the signal cable.

■

Check the seating of the controller.

■

If multiple SCSI devices are used, ensure that each device

■

has a unique SCSI ID.

Your drive should be shipped from the factory with all

■

terminators removed. Verify that all terminators have
been removed.

If none of these steps solve the problem then remove,

■

replace and test each of the following components
separately: signal cable, tape drive, and finally the
controller.

Compaq DAT AutoLoader Reference Guide

6-4

Troubleshooting After Installation

Follow the procedures in this section if the DAT AutoLoader has stopped
operating:

Run the Diagnostics utility.

1.

Clean the DAT AutoLoader heads, card, and magazine loaders.

2.

Replace the tape cassette.

3.

If multiple DAT AutoLoaders or tape drives are used, ensure that each

4.

tape drive has a unique SCSI ID. (Default=6)

Your DAT AutoLoader should be shipped from the factory with all

5.

terminators removed. Verify that all terminators have been removed.

Check the controller, signal cable, and power cable connections to

6.

ensure that they are properly seated.

Replace the cables, DAT AutoLoader, and finally the controller.

7.

For Tru64 Unix

If drivers are not seen, Refer to the “Digital layered product” CD-ROM
distribution disc for kernal rebuilding information. Search for SCSI CAM

Layered Components for Tru64 UNIX Systems Version 3.1E Installation
Guide.

Installation information can also be found online. For instructions on locating
release notes and other information see the, Software Product Library

CD-Rom User Guide.

For Novell NetWare

Refer to the STORAGE.RDM file on the Support Software for Novell Products
(NSSD) diskette which was supplied with your workstation, server, or DAT
AutoLoader for troubleshooting information.

For Microsoft Windows NT Systems

NOTE:

The following procedures apply only for Microsoft Windows NT 4.0 and above.

Confirm that the SCSI controller software driver has been installed and

1.

started.

Use the Windows NT Setup program or SCSI Adapters applet on the

a.

Control Panel to determine if the driver is installed.

Use the Devices or SCSI Adapters applet on the Control Panel to

b.

determine if the driver is started.

If necessary, reinstall the driver.

c.

Confirm that the DAT AutoLoader driver has been installed and started.

2.

Use the Windows NT Setup program or Tape Devices applet on the

a.

Control Panel to determine if the driver is installed.

Use the Devices or Tape Devices applet on the Control Panel to

b.

determine if the driver is started.

If necessary, reinstall the driver.

c.

For SCO OpenServer Systems

Troubleshooting

6-5

Verify that the tape driver is configured in the kernel.

1.

Use the

a.

/usr/adm/messages

determine the current tape parameters.

Use the

b.

modify the current tape parameters.

If you are using the DAT AutoLoader to install SCO OpenServer and a

2.

Fast SCSI-2 Controller, verify that the DAT AutoLoader is connected to
the Fast SCSI-2 Controller.

HWCONFIG

MKDEV TAPE

command or view the bottom of the file,

,

to determine whether the driver is installed or to

command to install the driver in the kernel or to

Compaq DAT AutoLoader Reference Guide

6-6

For IBM OS/2 Systems

The correct tape driver must be installed for the DAT AutoLoader to work
with OS/2. Try the following:

Install the tape software again.

1.

Make sure that a tape driver statement was added to the CONFIG.SYS

2.

file during the tape software installation procedure. If the tape driver
statement is missing, edit the CONFIG.SYS
Refer to the tape software documentation for more information. Restart
the server after making changes.

Resolving Operating Problems

If the DAT AutoLoader worked previously but now does not, try the
following:

Clean the drive heads.

1.

Run the tape drive option of Compaq Diagnostics.

2.

Determine what has changed in the system since the last tape backup.

3.

file to add the statement.

If the system configuration has been changed, try removing the

a.

change to see if it affects the tape backup system.

If a board or option has been added, check its DMA, IRQ, and port

b.

address settings for conflicts. Try removing the board or option.

If a SCSI device has been added, check for SCSI ID conflicts and

c.

proper termination. (Default=6)

Check the DAT AutoLoader connections. Reseat the controller, SCSI

4.

signal cable, and power cable.

Resolving Magazine Problems

If the DAT AutoLoader does not recognize the magazine, check the cassette
configuration.

If there is a cassette in position 8 but less than 7 cassettes in the other

1.

positions the magazine will recognize the configuration as a single
cassette.

If there is not a cassette in position 8 and all the other positions are not

2.

full, the magazine will be ejected.

Correcting Intermittent Failures

If the DAT AutoLoader works only intermittently:

Clean the tape drive’s heads.

1.

Run the Compaq Diagnostics Utility and the tape drive Diagnostics

2.

Utility. Follow the steps listed in the Installation section of this chapter
for the Compaq and tape diagnostics programs.

If the tape backup procedure starts correctly but then stops with an error:

3.

Use test to check firmware revision level.

a.

If the error occurs on the same file or directory each time, remove

b.

that file or directory from the backup list because it may be
corrupted. Correct any errors that you find with the file system.

If the tape backup procedure starts correctly, but stops intermittently:

4.

Check the DMA, IRQ, and port address settings for conflicts. If there

a.

is a conflict, change the setting or remove the conflicting board.

Try using a new tape cassette.

b.

Check to make sure the DAT autoloader has the latest upgrade. If not, upgrade
to the latest version.(Refer to the Compaq website address listed at the front of
this guide for the latest options SoftPaq).

Troubleshooting

6-7

Regulatory Compliance Notices

Regulatory Compliance Identification Numbers

For the purpose of regulatory compliance certifications and identification, your
DAT AutoLoader is assigned a Compaq Series Number. The Compaq Series
number for this product is: Series EO 2005 DDS4 External EOD 007 DDS4
Internal. The DAT AutoLoader Series Number can be found on the product
label, along with the required approval markings and information. When
requesting certification information for this product always refer to this Series
Number. This series number should not be confused with the marketing name
or model number for your DAT AutoLoader.

Appendix

A

Federal Communications Commission Notice

Part 15 of the Federal Communications Commission (FCC) Rules and
Regulations has established Radio Frequency (RF) emission limits to provide
an interference-free radio frequency spectrum. Many electronic devices,
including computers, generate RF energy incidental to their intended function
and are, therefore, covered by these rules. These rules place computers and
related peripheral devices into two classes, A and B, depending upon their
intended installation. Class A devices are those that may reasonably be
expected to be installed in a business or commercial environment. Class B
devices are those that may reasonably be expected to be installed in a
residential environment (that is, personal computers). The FCC requires

Compaq DAT AutoLoader Reference Guide

A-2

devices in both classes to bear a label indicating the interference potential of
the device as well as additional operating instructions for the user.

The rating label on the device shows which class (A or B) the equipment falls
into. Class B devices have an FCC logo or FCC ID on the label. Class A
devices do not have an FCC ID on the label. Once the class of the device is
determined, refer to the following corresponding statement.

Class B Equipment

This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more
of the following measures:

Reorient or relocate the receiving antenna.

■

Increase the separation between the equipment and receiver.

■

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

■

which the receiver is connected.

Consult the dealer or an experienced radio or television technician for

■

help.

Regulatory Compliance Notices

Declaration of Conformity for Products Marked with the FCC logo – United States Only

This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.

For questions regarding your product, contact:

Compaq Computer Corporation
P. O. Box 692000, Mail Stop 530113
Houston, Texas 77269-2000

or call 1-800- 652-6672 (1-800-OK COMPAQ). (For continuous quality
improvement, calls may be recorded or monitored.)

For questions regarding this FCC declaration, contact:

Compaq Computer Corporation
P. O. Box 692000, Mail Stop 510101
Houston, Texas 77269-2000

or call [phone].

A-3

To identify this product, refer to the Part, Series, or Model number found on
the product.

Modifications

The FCC requires the user to be notified that any changes or modifications
made to this device that are not expressly approved by Compaq Computer
Corporation may void the user's authority to operate the equipment.

Compaq DAT AutoLoader Reference Guide

A-4

Canadian Notice (Avis Canadien)

Class B Equipment

This Class B digital apparatus meets all requirements of the Canadian
Interference-Causing Equipment Regulations.

Cet appareil numérique de la classe B respecte toutes les exigences du
Règlement sur le matériel brouilleur du Canada.

European Union Notice

Products with the CE Marking comply with both the EMC Directive
(89/336/EEC) and the Low Voltage Directive (73/23/EEC) issued by the
Commission of the European Community.

Compliance with these directives implies conformity to the following
European Norms (in brackets are the equivalent international standards):

EN55022 (CISPR 22) - Electromagnetic Interference

■

EN50082-1 (IEC801-2, IEC801-3, IEC801-4) - Electromagnetic

■

Immunity

EN60950 (IEC950) - Product Safety

■

Japanese Notice

Taiwanese Notice

Regulatory Compliance Notices

A-5

Appendix

Electrostatic Discharge

To prevent damaging the system, be aware of the precautions you need to
follow when setting up the system or handling parts. A discharge of static
electricity from a finger or other conductor may damage system boards or
other static-sensitive devices. This type of damage may reduce the life
expectancy of the device.

To prevent electrostatic damage, observe the following precautions:

Avoid hand contact by transporting and storing products in static-safe

■

containers.

Keep electrostatic-sensitive parts in their containers until they arrive at

■

static-free workstations.

B

Place parts on a grounded surface before removing them from their

■

containers.

Avoid touching pins, leads, or circuitry.

■

Always be properly grounded when touching a static-sensitive

■

component or assembly.

Compaq DAT AutoLoader Reference Guide

B-2

Grounding Methods

There are several methods for grounding. Use one or more of the following
methods when handling or installing electrostatic-sensitive parts:

Use a wrist strap connected by a ground cord to a grounded workstation

■

or computer chassis. Wrist straps are flexible straps with a minimum of
1 megohm ± 10 percent resistance in the ground cords. To provide

proper ground, wear the strap snug against the skin.

Use heel straps, toe straps, or boot straps at standing workstations. Wear

■

the straps on both feet when standing on conductive floors or dissipating
floor mats.

Use conductive field service tools.

■

Use a portable field service kit with a folding static-dissipating work

■

mat.

If you do not have any of the suggested equipment for proper grounding, have
an Authorized Compaq Reseller install the part.

NOTE:

installation, contact your Authorized Compaq Reseller.

For more information on static electricity, or assistance with product

Dimensions and Weight

Dimension Internal AutoLoader Tabletop AutoLoader

Height 82.5 mm 3.50 in 109.5 mm 4.31 in

Table C-1

Dimensions and Weight

Appendix

C

Specifications

Width 146 mm 5.75 in 211 mm 8.31 in

Depth 241.6 mm 9.51 in 295.5 mm 11.63 in

Weight 2.4 kg 5.28 lbs 5 kg 11 lbs

Compaq DAT AutoLoader Reference Guide

C-2

Temperature and Humidity Range

Actions Temperature Humidity

Table C-2

Temperature and Humidity

Operating 5°C to 40°C

Non-Operating

(mech.)

Non-Operating

(tape)

NOTE:

Do not cover fan. The tape drive can malfunction if the internal temperature rises

too high.

Power Requirements

Voltage Max Ripple

5V +/- 5% 100 mVp-p 1.55A 2.5A

12V +/- 10% 100 mVp-p 0.35A 1.2A

(∆T < 10ºC/h)

-40°C to 70°C
(∆T < 20ºC/h)

-40°C to 45°C
(∆T < 20ºC/h)

Table C-3

Power Requirements

20 to 80% RH, non-condensing
Maximum wet bulb temperature = 26ºC

5 to 95% RH (∆T < 30ºC/h)

20 to 80% RH (∆T < 30ºC/h)

Current

Typical Maximum

Air-Cooling Requirement

Ambient temperature < 40ºC

Table C-4

Air-cooling Requirements

Suspended Particulate

Action Feature

Operating Less than 150 microgram/m

Table C-5

Suspended Particulate

Based sampling period 24 hours

3

Specifications

C-3

Index

A

Advanced SCSI Programming

Interface (ASPI) 3-3

driver 3-3
air-cooling requirement C-2
ANSI 1-5
ARCserve from Compaq 3-3
ASPI support 3-3
AutoLoader operation

troubleshooting 6-4
avoiding jams 4-2

B

backup software 1-8
backups

maximum number of 1-7

time required for 1-4

under extreme conditions 1-7
bad blocks 5-2
Banyan VINES 3-1, 3-8

drivers for hardware 3-8

drivers for SCSI controller 3-8

drivers for software 3-8
Beginning of Media See BOM
Beginning of Partition See BOP
BOM 4-7
boot straps, using B-2
BOP 4-7

C

cables

signal 2-9

Canadian Notice (Avis

Canadien) A-4

cassettes

Compaq approved 1-5
compatibility 1-5
configurations in a

magazine 4-2
DDS formats 1-2, 1-5, 4-1
DDS Logo Media 1-6
DDS Logo Media,

illustrated 1-6
eight cassette positions,

illustrated 4-4
forcing ejection 4-8
formats 1-5
identification 1-7
incorrect configuration 4-6
inserting in a magazine,

illustrated 4-5
labeling 4-2
life expectancy 1-7
loading the magazine 4-2, 4-5
MRS 1-6
positions in the magazine 4-5
removing from the

magazine 4-6

2 Compaq DAT AutoLoader Reference Guide

seven cassette positions,

illustrated 4-4

single cassette position,

illustrated 4-4
standards 1-5
tape log 1-7
troubleshooting 6-1, 6-2
write-protecting 1-7

CE Marking A-4
cleaning

cycle 5-3
errors from neglect 5-2
importance of approved

tapes 5-3
importance of routine 5-1
procedures in random

mode 5-4
procedures in stacker

mode 5-4
random mode 5-4
recommendations 5-3
recommended schedule 5-2
stacker mode 5-4
whitepapers on 5-1

cleaning the DAT AutoLoader

and frequency of backups 1-4

Compaq authorized reseller x
Compaq Extended Feature

Supplement See EFS
Compaq Series Number A-1
Compaq Tru64 UNIX 3-1, 3-4

drivers for hardware 3-4
drivers for SCSI controller 3-4

drivers for software 3-4
Compaq website x
computer

capacity 1-4

performance 1-8
configuring SCSI ID for SCO

OpenServer 3-5
configuring the AutoLoader 2-2
connecting the tabletop

AutoLoader 2-9
controller drivers

Banyan VINES 3-8
Compaq Tru64 UNIX 3-4

OpenVMS 3-4
SCO UnixWare 3-6
SunSoft Solaris 3-7
Windows NT 3-2

controller requirements 1-3

D

daisy chain 2-10
DAT AutoLoader

capacity 1-4
illustrated 1-1
projected duty cycle of 1-4

reliability 1-3
DAT cassettes 4-1
data compression 1-2

enabling and disabling 1-5

overview 1-4
DDR See Dynamic Device

Recognition
DDS cassettes 1-2, 1-5, 4-1
DDS-DC format 1-2, 1-4, 1-5
Declaration of Conformity A-3
device drivers 3-1
dropouts 5-2
duty cycle 1-4
Dynamic Device Recognition 3-4

E

ECMA 1-5
EFS

for SCO OpenServer 3-5

for SCO UnixWare 3-7
eject button 4-7, 4-9
electrostatic discharge

obtaining additional

information B-2
precautions B-1
preventing B-1
storing products B-1
transporting products B-1
types of damage from B-1

electrostatic discharge (ESD) 2-6
End of Data See EOD
enter button 4-9

Index 3

environmental conditions 1-7
EOD 4-9
ESD See electrostatic discharge
European Union Notice A-4
Extended Feature Supplement See

EFS

F

FCC Class B compliance

notice A-2

Federal Communications

Commission (FCC) notice A-1
For Tru64 Unix 6-4
forcing cassette ejection 4-8
format failures 5-2
front panel

Busy LED 4-10
eject button 4-10
enter button 4-10
features 4-10
identifying 4-10
LCD 4-10, 4-11
magazine slot 4-10
select button 4-10
tape LED 4-10

G

getting help x
grounding methods B-2
grounding straps

specifications B-2
wearing B-2

grounding, suggested equipment

for B-2

Compq authorized resellers,

telephone numbers x

technical support telephone

numbers x

http://www.compaq.com x
humidity range C-2

I

IBM OS/2

troubleshooting 6-6

icons

symbols on equipment viii

incorrect cassette

configuration 4-6

indicators

LED 6-6

installation

overview 2-1
setting the options

switches 2-3
setting the SCSI ID 2-3, 2-9
software drivers 3-1
software requirements 2-1
tabletop AutoLoader 2-9
the drive with rails 2-6
the drive with rails,

illustrated 2-6
the drive without rails 2-7
the drive without rails,

illustrated 2-7
tools needed 2-1

J

jams, avoiding 4-2

H

hardware settings 2-2

default 2-2
hardware troubleshooting 6-1
heel straps, using B-2
help

additional sources x

Compaq website x

L

labeling

cassettes 4-2
the magazine 4-2

LCD 1-2, 4-11

cassette odometer 1-2
features 4-11
illustrated 4-11

4 Compaq DAT AutoLoader Reference Guide

LCD menu screens 4-16

Auto Load 4-16
Contrast Adjustment 4-16
Language 4-17
Orientation 4-17
TSL9000 SCSI ID#5

Ver.0000 4-16

Version 4-16

LCD messages 4-12

Cassette Stuck in Drive 4-12
Cleaning Failed

CleanReq 4-12
Cleaning in Process 4-12
CleanReq 4-12, 5-3
Drv HW Error 4-12
Eject Prevent 4-12
Ejecting Magazine 4-12
Erase Tape x 4-13
Illegal Cassette Config 4-13
Illegal Magazine Config 4-13
Init Element Status 4-13
Ldr HW Error ResetReg 4-13
Load Tape x 4-13
Locate Tape x 4-13
Magazine Eject 4-13
Magazine Loading 4-13
Medium Error 4-13
Move Medium x => Drv 4-13
Move Medium x => Mag 4-14
No Magazine 4-14
Read Tape x 4-14
Ready 4-14
Scan 1, Scan 2 4-14
Select Load Tape x 4-14
Select Prevent 4-14
Select x Push ENT 4-14
Select x Unload Tape y 4-14
Send Diag Checking

Mecha 4-14
Space Tape x 4-15
TSL9000 Self-Test

Complete 4-15
Unload Tape x 4-15
Updating Firmware 4-15
Verify Tape x 4-15
Write Tape x 4-15

M

magazine

cassette configurations 4-2
ejecting 4-7
identification 4-2
incorrect cassette

configuration 4-6
inserting cassettes 4-5
labeling 4-2
loading into the

AutoLoader 4-6
loading into the AutoLoader,

illustrated 4-6
loading with cassettes 4-2, 4-5
removing cassettes 4-6

media errors 5-2
Media Recognition System See

MRS

Microsoft Windows NT See

Windows NT

modes of operation 4-9

random mode 4-9
stacker mode 4-9

modifications

FCC compliance

statement A-3

MRS 4-1

N

Novell NetWare 3-1, 3-3

troubleshooting 6-4

O

OpenVMS 3-1, 3-4

drivers for hardware 3-4
drivers for SCSI controller 3-4
drivers for software 3-4

operation of AutoLoader

modes of 4-9

P

parts

Index 5

proper handling B-1
storing B-1

transporting B-1
power requirements C-2
problems See troubleshooting

R

random mode 4-9, 5-4

cleaning 5-4
read or write errors 5-2
recommendations

cleaning 5-3
regulatory compliance

identification number A-1
removing cassettes from the

magazine 4-6

RJ-45 receptacle viii

S

SCO OpenServer 3-1, 3-4

software driver

information 3-5

troubleshooting 6-5
SCO UnixWare 3-1, 3-6

drivers for hardware 3-6

drivers for SCSI controller 3-6

drivers for software 3-6
SCSI commands

ENABLE MEDIA

REMOVAL 4-8
MEDIUM CHANGER 4-9
MOVE MEDIUM 4-9, 5-4
PREVENT MEDIA

REMOVAL 4-8, 4-9,

4-12, 4-14
UNLOAD 4-7, 4-8, 4-9

SCSI ID 2-3

default 2-9
ID 7 2-3
jumper pins, illustrated 2-2

SCSI-2

controller 1-3
features 1-3
functions 1-3

interface 1-2, 1-3
Seagate BackupExec 3-3
select button 4-9
sequential mode See stacker mode
series number A-1
signal cable 2-9
slide stopper 4-6

illustrated 4-7
SmartStart and Support Software

CD 2-2

software driver information

Banyan Vines 3-8

Novell NetWare 3-3

SCO UnixWare 3-6

SunSoft Solaris 3-7

Windows NT 3-2
software drivers

Banyan VINES 3-8

installing 3-1

SCO UnixWare 3-6

SunSoft Solaris 3-7

Windows NT 3-2
software requirements 2-1
software troubleshooting 6-2
stacker mode 4-9, 5-4

cleaning 5-4
static-safe containers

storing products in B-1

transporting products in B-1
SunSoft Solaris 3-1, 3-7

drivers for hardware 3-7

drivers for SCSI controller 3-7

drivers for software 3-7
suspended particulate C-3
switches

defaults 2-4

illustrated 2-4

MRS 2-4

self-test 2-4

settings 2-3
symbols in text viii
symbols on equipment viii
system shutdown 2-6
system, preventing electrostatic

damage to B-1

6 Compaq DAT AutoLoader Reference Guide

T

tabletop AutoLoader

installation 2-9
SCSI ID 2-9

tape drive switch configuration 2-3

defaults 2-3

illustrated 2-4
TapeAlert 1-2
technical support x
telephone numbers x
temperature range C-2
text conventions vii
tool requirements 2-1
tools

conductive field service

type B-2

troubleshooting

after installation 6-4

cassettes 6-1, 6-2

hardware 6-1

IBM OS/2 Systems 6-6

installation 6-3

intermittent failures 6-7

magazine problems 6-6

MRS 6-1
Novell NetWare 6-4
operating problems 6-6
quick checklist 6-1
SCO OpenServer 6-5
software 6-2
Windows NT 6-5

W

warnings

electrical shock ix
rack stability ix

Windows NT 3-1

drivers for hardware 3-2
drivers for SCSI controller 3-2
drivers for software 3-2
systems troubleshooting 6-5

wrist straps

specifications B-2
using B-2

www.compaq.com x