Quantum DAT A User Manual

Installation

Operating Guide

DAT Autochanger

and

Advanced Digital Information Corporation

Copyright Notice

 Copyright adic 1993

The information contained in this document is subject to change without notice.

This document contains proprietary information that is protected by copyright. All rights are
reserved. No part of this document may be photocopied, reproduced or translated to another
language without the prior written consent of adic.

adic shall not be liable for errors contained herein or for incidental or consequential damages
(including lost profits) in connection with the furnishing, performance or use of this material
whether based on warranty, contract, or other legal theory.

Printed in the U.S.A.

June 1997

Document Number 62-0076-01 Rev H

Advanced Digital Information Corporation

[phone]

Fax: [phone]
Customer Assistance: (206) 883-HELP
World-Wide Web: http://www.adic.com

BBS: [phone]

Shipping Address: 14737 N.E. 87th Street

Redmond, WA 98052

Mailing Address: P.O. Box 97057

Redmond, WA 98073-9757

adic Europe

Z.A. du Bel Air

21-23 Avenue Saint Fiacre,

Saint Germain-en-Laye,

78100 France

33 1 3087 5300

Fax: [phone]

adic and adic Europe are trademarks of Advanced Digital Information Corporation.

ii

Copyright Notice (Europe)

© Copyright 1995 adic Europe

All rights reserved. No part of this document may be copied or reproduced in any form or by
any means, without prior written permission of adic EUROPE, Z.A. du Bel-Air, 21 avenue
Saint-Fiacre, 78100 - Saint-Germain en Laye, FRANCE.

adic EUROPE assumes no responsibility for any errors that may appear in this document, and
retains the right to make changes to these specifications and descriptions at any time, without
notice.

This publication may describe designs for which patents are pending, or have been granted.
By publishing this information, adic EUROPE conveys no license under any patent or any
other right.

adic EUROPE makes no representation or warranty with respect to the contents of this
document and specifically disclaims any implied warranties of merchantability or fitness for
any particular purpose. Further, adic EUROPE reserves the right to revise or change this
publication without obligation on the part of a adic EUROPE to notify any person or
organization of such revision of change.

Every effort has been made to acknowledge trademarks and their owners. Trademarked names
are used solely for identification or exemplary purposes, any omissions are made
unintentionally.

adic EUROPE is a trademark of adic.

iii

EMI/RFI Compliance

United States – FCC

WARNING: 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:

• Re-orient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

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

receiver is connected.

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

You may find the following booklet prepared by the Federal Communications Commission
helpful: How to Identify and Resolve Radio-TV Interference Problems. This booklet is
available from the U.S. Government Printing Office, Washington, DC 20402, Stock No. 004­000-00354-04.

Canada – Department of Communications

This digital apparatus does not exceed the Class B limits for radio noise emissions from digital
apparatus as set out in the interference-causing equipment standard entitled "Digital
Apparatus", ICES-003 of the Department of Communications.

Cet appareil numérique respecte les limites de bruits radioélectriques applicables aux
appareils numériques de Class B prescriptes dans la norme sur le matériel brouilleur:
"Appareils Numériques", NMB-003 édictée par le ministre des Communications.

Shielded Cables

Shielded data cables are required in order to meet FCC emissions limits. The adic data cable
meets this requirement. If you need a replacement cable, be sure to use an adic -approved
shielded cable (to assure acceptability to FCC requirements).

iv

Declaration of Conformity

according to EN 45014

Manufacturer’s Name: Advanced Digital Information Corporation

Manufacturer’s Address: 10201 Willows Road NE 21-23 Av. Saint-Fiacre

Redmond, WA
98052
USA France

declares, that the product:

Product 1200 Series Tape Library
(Produit, Erzeugnis):

Model Number 1200, 1200C, 1200D, 1200E, 1200G
(Marque Commercial,
Warenbezeichnung):

conforms to the following international specifications, as required by 89/336/EEC & 92/31/EEC:

F-78100 Saint-Germain-en-Laye

EMI: EN 50081-1, EN-55022 Class B (1)
EMC: EN 50082-1, IEC 801-2, IEC 801-3, IEC 801-4

Safety:

EN 60950

Supplementary Information:
(1) Testing was conducted using Vfg 243 Class B. Vfg 243 is based on EN55022 but adds

several additional requirements.

Redmond, Washington USA 3-Jan-1996

Location Date Signature/Title

Project Engineering Mgr

v

Safety Warnings

All safety and operating instructions should be read before this
product is operated, and should be retained for future reference.
This unit has been engineered and manufactured to assure your
personal safety. Improper use can result in potential electrical
shock or fire hazards. In order not to defeat the safeguards,
observe the following basic rules for its installation, use and
servicing.

1. Heed Warnings - All warnings on the product and in the operating instructions

should be adhered to.

2. Power Source - The product should be connected to a power source only of the

type directed in the operating instructions or as marked on the product.

3. Power Cord Protection - The AC line cord should be routed so that it is not

likely to be walked on or pinched by items placed upon or against it, paying
particular attention to the cord at the wall receptacle, and the point where the
cord exits from the product.

Caution

4. Power Switch - The power switch used in this product does not disconnect both

supply conductors when placed in the OFF position. To completely disconnect
power from this product, unplug the AC power cord from the receptacle on the
back of the unit.

5. Servicing - The user should not attempt to service the product beyond that

described in the operating instructions. All other servicing should be referred to
qualified service personnel.

vi

Table of Contents

Copyright Notice....................................................................................................................... ii

Copyright Notice (Europe) ......................................................................................................iii

EMI/RFI Compliance............................................................................................................... iv

Safety Warnings....................................................................................................................... vi

Quickstart................................................................................................................................. ix

Chapter 1 Getting Started ......................................................................................................... 1

Introduction ........................................................................................................................ 2

Requirements...................................................................................................................... 2

Unpacking and Inspecting.................................................................................................. 3

Equipment Description....................................................................................................... 4

The DAT Autochanger ................................................................................................ 4

Magazine...................................................................................................................... 5

Media ........................................................................................................................... 6

Cleaning Cassette......................................................................................................... 6

Modes of Operation............................................................................................................ 7

Select or Confirm Random Access Mode.................................................................... 8

Select or Confirm Sequential Access Mode................................................................ 8

SCSI.................................................................................................................................... 9

SCSI ID........................................................................................................................ 9

Preparing the Host Computer System ................................................................................ 9

Power Off the Host Computer ..................................................................................... 9

Confirm and/or Install the SCSI host interface.......................................................... 10

System Software ........................................................................................................ 10

Chapter 2 Connecting the DAT Autochanger......................................................................... 11

Connecting the Interface Cables....................................................................................... 12

Connecting More Than One DAT Autochanger.............................................................. 13

Powering on the System................................................................................................... 14

Installing the Backup Software ........................................................................................ 15

Chapter 3 Equipment Description........................................................................................... 17

Front Panel Switches and Indicators................................................................................ 18

Rear Panel Switches and Connectors............................................................................... 20

vii

Chapter 4 Operation and Maintenance.................................................................................... 21

Inserting the Data Cassettes into the Magazine................................................................22

Inserting the Magazine into the DAT Autochanger..........................................................23

Loading the Magazine.......................................................................................................24

Attempting to Load the Magazine with a Cassette Already in Drive...............................25

If you are using sequential access mode......................................................25

If you are using random access mode...........................................................25

Removing the Magazine from the DAT Autochanger......................................................26

If you are using sequential access mode......................................................26

If you are using random access mode...........................................................27

Removing the Magazine with a Cassette in Drive .....................................................27

Loading an Individual Cassette.........................................................................................27

Removing a Cassette from the Magazine .........................................................................28

Storing the Magazine........................................................................................................28

Cleaning the Drive Head...................................................................................................29

Cleaning the Enclosure.....................................................................................................31

Chapter 5 Troubleshooting and Diagnostics...........................................................................33

DAT Autochanger Warning Lights ..................................................................................34

Error Message Codes........................................................................................................ 35

Drive LEDs.......................................................................................................................36

Environmental Considerations..........................................................................................39

When You Call adic Customer Assistance .....................................................................39

Return for Repair RMA (Return Merchandise Authorization) ........................................41

Appendix A Glossary..............................................................................................................43

Appendix B Specifications......................................................................................................47

Index........................................................................................................................................51

viii Table of Contents

Quickstart

This Section. . .

p provides a quick start guide for experts who are familiar with

installing computer hardware and software.

ix

Note

The DAT Autochanger has been shipped with the SCSI ID for the drive
set to "0" and the changer (robotics) set to "3".

p Confirm that power is off on your host computer and that you have a SCSI

interface (either a separate board, or integrated on the motherboard) installed in
your host computer. Consult your computer manual.

p Place the DAT Autochanger close to the host computer.

p Connect the SCSI interface cable between the SCSI connectors on the host

computer and the rear of the DAT Autochanger.

Note

adic recommends the use of an “Alt-2” active single ended terminator,
such as adic p/n 61-1124-01.

Host Computer

x Quickstart

DAT Autochanger

SCSI Interface Cable

Terminator

p Make sure there is a terminator installed on the last device of the SCSI chain.
p Connect the AC line cord first to the DAT Autochanger, then to an AC outlet.

Power on the DAT Autochanger. Power on the host computer.

p Install the magazine (with dust cover in place) onto the carriage platform. It may

be necessary to use a side-to-side rocking motion until the magazine snaps into
place.

p Remove the dust cover from the magazine by simultaneously pressing on both

ends (as indicated on cover) and lifting the cover up.

p Close the DAT Autochanger door and load the magazine by pressing the LOAD

button on the front panel. (If you are operating the DAT Autochanger in
sequential access mode, the first cassette will be inserted in the drive when the
load finishes.)

p Install or confirm the backup software (to run the DAT Autochanger) on the host

computer.

p Run any diagnostic tests provided with the backup software to make sure the

DAT Autochanger is communicating correctly with the host computer.

You are now ready to run the DAT Autochanger at a system level.

Quickstart xi

Blank Page

xii Quickstart

Getting Started

This Chapter. . .

p covers what you need, and need to know, to install the DAT

Autochanger. Read this section before you begin installation.

Chapter

1

1

Introduction

adic has designed the DAT Autochanger for high-capacity, near- and off-line storage

applications, such as backup, hierarchical storage management (HSM) and

video/design/data file libraries. For the most part, installation is simply a matter of

checking all necessary SCSI connections, installing the software and applying power.

The defaults set at the factory should be sufficient for most applications.

Requirements

p Space requirements: The DAT Autochanger has a footprint of 17" x 13.5". You

must allow adequate clearance to the rear and sides (2 inches minimum) to allow
airflow and enough room at the front to open the door (which stands 8" high and
is hinged at the bottom).

p Host computer system: We assume that you are familiar with your host computer

system. The DAT Autochanger is controlled by backup software running on your

2 Getting Started

host computer. The backup software, SCSI controller card (if required), and any
additional, or different, SCSI interface cable(s) must be purchased separately.

p Mode of operation: You must know whether the DAT Autochanger will be

operating in sequential access or random access mode. For additional
information refer to the Modes of Operation section later in this chapter.

p Necessary tools: No special tools are required to install the DAT Autochanger. If

you are also installing a SCSI host adapter card, refer to the installation manual
for your host adapter.

Unpacking and Inspecting

Caution

If the temperature of the operating environment differs from that
of the storage environment by 10°C (18° F) or more, let the
DAT Autochanger acclimate to the ambient one hour for every
10° C of difference.

The DAT Autochanger packaging materials have been carefully designed to protect
it from shock, vibration, and moisture. The DAT Autochanger should remain in the
packaging until it is ready to be installed. All original materials should be saved in
case you need to move or ship the system in the future. Unpack all items from the
carton.

Getting Started 3

Caution

You must ship the DAT Autochanger in the original or
equivalent packaging materials or your warranty may be
invalidated.

Equipment Description

The DAT Autochanger

The DAT Autochanger is a fully automated, high performance, high capacity, mass

storage system designed with a removable data cassette magazine. It is composed of

a standard DAT DDS drive and DAT Autochanger-unique hardware (robotics) that

are controlled by application software running on your host computer.

The DAT Autochanger provides unattended, fully automatic, sequential access or

random access to data stored on the cassettes. The robotics moves the DAT (digital

audio tape) cassettes into and out of the DAT drive as needed. High data reliability is

achieved through read-after-write and additional third-level error detection and

correction circuitry (typical error rates are less than one bit in 1015).

4 Getting Started

The heart of the DAT Autochanger is the DAT drive. The DDS (Digital Data
Storage) format uses helical scan technology, originally used in digital audio
recorders, and adapts it for computer data storage. When equipped with a DDS 3
drive, the DAT Autochanger provides up to 24 GB (at an average 2:1 compression)
of removable, highly reliable data storage on a low cost, pocket-sized 125 meter
DAT cassette. A fully loaded twelve-cassette magazine will provide a storage
capacity of 288 gigabytes (at an average 2:1 compression.)

The DAT Autochanger may be used with any computer that supports SCSI, SCSI-2,
or SCSI-3 devices.

Magazine

The magazine for the DAT Autochanger holds twelve DDS cassettes. It includes a
clear dust cover to protect the cassettes and for ease of storage. The following
illustration shows a DDS cassette and a filled magazine with the cover in place.

Note

adic strongly recommends that you use adic approved DDS
cassettes only. Do not attempt to use "audio-grade" media (such
media can damage the head and tape handling parts – voiding
your warranty).

Getting Started 5

Media

The DAT Autochanger uses DDS data cassettes. Never use DAT audio grade

cassettes, because the media is not certified for data storage. Also, DAT audio grade

cassettes have a different mechanical specification, which can cause them to jam in

the drive mechanism.

Before inserting the cassette into the magazine check the position of the write-protect

switch. Set all tabs to the enabled position (unless a tape contains data that you don't

want erased). (The write-protect switch enables or disables the ability to write [or

delete] files on the data cassette.)

To write-protect the data cassette, move the write-protect switch away from the edge

of the data cassette. If the write-protect hole is open, the cassette is write-protected

and cannot be written to (or erased).

To write-enable the data cassette, move the write-protect switch toward the edge of

the data cassette, as shown. If the write-protect hole is closed, the cassette is write

enabled and can be written to or erased. Use a ballpoint pen or similar instrument to

move the write-protect switch.

Cleaning Cassette

The tape head should be cleaned after every 8 to 10 hours of actual tape motion in

the drive or when the Media Caution signal is displayed. A 20-use cleaning cassette

(adic 39-1028-01) is shipped with your DAT Autochanger. Discard it after 20 uses

6 Getting Started

and replace it with the same or equivalent type cassette. See Cleaning the Drive
Head, later in this manual.

Note

After 24 hours of head-tape motion since the last cleaning the
LEDs will flash amber in unison. This flashing in unison is the
Media Caution signal.

Modes of Operation

The DAT Autochanger has two modes of operation. When used in random access
mode the DAT Autochanger allows your backup software to access any cassette in
the magazine randomly. This permits you to logically divide cassette usage to satisfy
particular storage needs. For example, you may assign one or more cassettes to
specific data functions such as certain directories or network servers, or you may
assign cassettes to individual users. Sequential access mode operates the DAT
Autochanger as a stacker. Your backup software will write the data to each of the
cassettes sequentially starting with the first one.

Getting Started 7

Select or Confirm Random Access Mode

To confirm that the random access mode is selected, check to be sure that the mode

selection jumper is installed on the mode selection pins on the back of the control

module panel (your DAT Autochanger is shipped from adic with the jumper

installed).

p Open the DAT Autochanger door. Locate the small circuit board next to the left-

hand hinge. The mode selection pins are located on the underside of the board on
the right side. A jumper should be installed over the pins.

To select the random access mode if the jumper has been removed, simply install the

jumper over the pins.

Select or Confirm Sequential Access Mode

To confirm that the sequential access mode is selected, check to be sure that the

mode selection jumper is not installed on the mode selection pins on the back of the

control module panel (your DAT Autochanger is shipped from adic with the jumper

installed).

p Open the DAT Autochanger door. Locate the small circuit board next to the left-

hand hinge. The mode selection pins are located on the underside of the board on
the right side. The jumper should not be installed over the pins (see Figure 6).

To select the sequential access mode if the jumper has been installed, simply remove

the jumper from the pins.

8 Getting Started

SCSI

SCSI is the acronym for Small Computer System Interface. The interface is a
combination of an 8-bit parallel bus (hardware) and a command set (software). SCSI
allows you to connect up to seven SCSI devices to any host computer.

The SCSI interface is transparent to the host computer. The computer only needs to
ask for data from a device, or ask to send data to a device. The SCSI interface
performs the task of moving the data.

SCSI ID

The SCSI standard specifies that up to seven devices may be connected to a single
SCSI channel. It does this by specifying seven IDs (addresses), one for each device.
The DAT Autochanger, when operated in random access mode, requires two IDs;
one for the DAT drive, and one for the robotics. The SCSI ID for the drive has been
preset at the factory to "0" and the ID for the robotics has been preset to "3". Your
backup software that controls the DAT Autochanger determines the proper IDs for
the drive and robotics. Refer to the User's Manual provided with your software for
the correct IDs.

The SCSI ID switches are located on the rear of the DAT Autochanger. They are the
small red rotary switches to the left of the SCSI connectors. You may change the IDs
by using a small flat-blade screwdriver to move the switch to the proper position.

When operated in sequential access mode the robotics section of the DAT
Autochanger does not appear on the bus, and therefore does not require a SCSI ID.

Preparing the Host Computer System

Power Off the Host Computer

p Turn off the power switch. Unplug the cord from the AC outlet.

Getting Started 9

Note

The host computer system normally is the network server.

Confirm and/or Install the SCSI host interface

The DAT Autochanger must be connected to either an integrated SCSI host or a

SCSI interface (host adapter) card installed in the computer – either directly to the

SCSI connector on the card or as part of an existing SCSI chain. The SCSI interface

must be installed before you connect the DAT Autochanger. Refer to the instructions

supplied with the card.

Now you are ready to connect the DAT Autochanger to your host computer. Follow

the instructions provided in the next chapter.

System Software

A variety of backup and data storage software is available for use with the DAT

Autochanger. Please check with adic Sales or the Customer Assistance Center if

you have a question on the compatibility of a particular software package.

10 Getting Started

Chapter

Connecting the DAT Autochanger

This Chapter. . .

p provides instructions for physically connecting your DAT

Autochanger to your host system.

2

11

Connecting the Interface Cables

First make sure the interface cable you are using has the appropriate connectors on

each end. If the host computer's SCSI connector is different from that on the DAT

Autochanger, you will need to obtain a different cable than the one supplied with the

unit. Consult your dealer or adic Customer Assistance if you need help. Connect the

interface cables as shown in the following illustration and explained in the following

steps:

Note

The interface cables must be shielded – adic can supply you
with the correct type(s).

p Check that the power switches on both the DAT Autochanger and the host

computer are off.

p Attach the 50-pin end of the SCSI interface cable to either connector on the rear

of the DAT Autochanger. Press firmly and secure the bail locks.

Host Computer

SCSI Interface Cable

12 Connecting the DAT Autochanger

DAT Autochanger

Terminator

Note

Terminato

r

The bail locks at both ends of the SCSI cable must be securely
fastened in order for the DAT Autochanger to communicate
properly with the computer.

p Plug the other end of the SCSI cable into the external SCSI connector on your

host computer. Secure the bail locks firmly.

p If the DAT Autochanger is the only SCSI device you are installing, insert an

external single-ended terminator into the second SCSI connector. If you plan to
connect another SCSI device on the same SCSI channel, see the next section.

Connecting More Than One DAT Autochanger

If installing additional DAT Autochangers on the same SCSI channel, attach each
subsequent unit to the previous unit with an interface cable. Make sure all cables are
properly secured. You can install up to seven devices to each SCSI channel, but each
DAT Autochanger may represent more than one SCSI device.

Host Computer

SCSI Interface Cable

DATAutochanger

Connecting the DAT Autochanger 13

Note

When counting SCSI devices, keep in mind that a DAT
Autochanger can contain up to two devices (the DAT drive and
the robotics). Don't forget to include in your count other devices
on the SCSI channel, (i.e., a tape unit, an additional hard drive,
etc.).

Each DAT Autochanger unit contains more than one SCSI device and may require

more than one SCSI ID (depending on the mode of operation). The first chart below

shows the different DAT Autochanger configurations and the number of SCSI IDs

required. The second chart illustrates how many DAT Autochanger units you can

attach to one SCSI channel (if there are no other devices on the channel).

Number of SCSI IDs Required

Sequential Mode Random Mode

1 2

Maximum DAT Autochangers on one SCSI Channel

Sequential Mode Random Mode

7 3

Powering on the System

p Plug the AC power cord into the connector on the rear of the DAT Autochanger.

p Plug the AC power cord from the DAT Autochanger into a grounded electrical

outlet.

p Plug the AC power cord from your host computer into a grounded electrical

outlet.

p Turn on the DAT Autochanger power. Turn on the host computer power.

14 Connecting the DAT Autochanger

Installing the Backup Software

Note

This is the software that operates the DAT Autochanger, not the
data being transferred to the DAT Autochanger cassettes. Two
examples of backup software are Cheyenne's ARCserve and
Legato's Networker.

Refer to the installation instructions provided with your backup software and install
the software on your host computer.

After you have completed installation of the DAT Autochanger and the software,
you should run any diagnostic test(s) supplied with the software to make sure your
unit is operating correctly.

Connecting the DAT Autochanger 15

Blank Page

16 Connecting the DAT Autochanger

Equipment Description

This Chapter. . .

p explains the switches, indicators and connectors on the front and

rear of the DAT Autochanger.

Chapter

3

p describes the various functions available via the front panel

buttons.

17

For the most part, once your DAT Autochanger has been connected to your host

computer system and the software has been installed, the DAT Autochanger is ready

for use. Just turn on the power switch, place a magazine on the carriage and press the

LOAD button on the front panel.

Front Panel Switches and Indicators

Switches and indicators on the front of the DAT Autochanger are shown in the

following illustration.

18 Equipment Description

Power LED (green)

Lights when the power is on. It also reports error conditions
(through a blinking sequence).

Busy LED (green)

Lights whenever the drive is active. It also reports error
conditions (through a blinking sequence in conjunction with
the Power LED).

Note

The Power and Busy LEDs are used to indicate that an error has
occurred with the DAT Autochanger. Refer to Chapter 5,
Troubleshooting and Diagnostics for descriptions of the error
codes displayed by the Power and Busy LEDs.

Locked LED

(green)

Lights whenever the LOAD and UNLOAD buttons are
disabled. This occurs when a cassette is in the drive, or if
commanded from the system software. This LED blinks
when an unload operation is pending in sequential access
mode.

Note

The DAT Autochanger uses the LOAD function to detect
reversed cassettes or the absence of a cassette.

LOAD

Pressing this button initiates a load magazine sequence − the
DAT Autochanger will check the cassettes in the magazine
(making note of empty spaces) and that all cassettes present
can be inserted in the drive correctly.

UNLOAD

Press this button to initiate an unload sequence − the DAT
Autochanger will return the magazine to the unload position.

Caution

Never attempt to remove a magazine unless it is in the unload
position. You may damage the pick arm.

Equipment Description 19

Rear Panel Switches and Connectors

SCSI connectors

Rear panel switches and connectors are shown in the following illustration.

Power Switch

AC Power

Connector

Power Switch

CHANGER

SCSI

ADDRESS

DRIVE

Turns on the AC power.
Plug the AC power cord into this connector.

DAT Autochanger

AC Power Connector

20 Equipment Description

SCSI Connectors

Connections for interface cable that connects DAT
Autochanger to host computer, to other DAT Autochangers
and/or to other devices.

SCSI ID Selectors

Selects the SCSI ID for the drive and robotics (CHANGER).

Note

SCSI ID changes do not take effect until you cycle power on the
DAT Autochanger.

Operation and Maintenance

This Chapter. . .

p describes normal operating features of the DAT Autochanger
p provides details on the media and magazine

Chapter

4

p explains normal maintenance procedures

21

The DAT Autochanger is a highly sophisticated unit composed of a DAT drive and

the electro-mechanical robotics that control the drive, magazine, and media. No

modifications have been made to the DAT drive. The built-in drive warning lights

function as the manufacturer has specified.

Very little routine maintenance is required – apart from cleaning the heads after

approximately 8 to 10 hours of use or when the Media Caution shows (see Cleaning

the Drive Head later in this chapter) on the drive LEDs.

Note

The drive warning lights are located on the bottom front of the
drive, to see them you must look down through the front door
window.

Inserting the Data Cassettes into the Magazine

The magazine for the DAT Autochanger holds 12 DAT cassettes. It includes a clear

dust cover to protect the cassettes and for easy storage. See Figure 11. Insert each

cassette into a slot of the magazine making sure that the write-protect tab is toward

the top, facing the closed side of the magazine.

adic strongly recommends that you use data-grade DDS media
only. Do not attempt to use "audio-grade" (DAT) media (such
media can damage the heads and tape handling parts).

22 Operation and Maintenance

Note

The open side of the magazine faces the DAT Autochanger. Make sure each cassette
touches the bottom floor of the magazine. The cassettes will fit firmly in the
magazine due to the spring holder (the button-like object on the side of the cassette
slot). The spring holder will keep each cassette in place even if the magazine is
turned upside down.

Do not use wrap-around labels on the individual cassettes. Most labels use a
removable adhesive and have a tendency to curl or tear after multiple uses. This can
jam the movement of the DAT Autochanger.

Note the following:

• Store magazines (and data cassettes) in a dry, cool environment. Keep the

dust cover on the magazine.

• Never reset or power down your host computer or DAT Autochanger while a

function is in process or a tape is moving. In addition to a tape with missing
or corrupted data, you may also get tape run-on within the drive (a condition
that can produce internal contamination requiring extra cleaning).

• If a power outage occurs during a back-up sequence, restart your backup

from the beginning.

Inserting the Magazine into the DAT
Autochanger

p Open the DAT Autochanger door.

Note

The magazine should be inserted and removed from the DAT
Autochanger with the magazine cover on.

p Holding the magazine by the cover, use two hands to place it on the carriage

platform. Make sure that the two projections on the bottom of the magazine fit
into the two holes on the carriage platform.

Operation and Maintenance 23

p Press down gently while rocking the magazine from side-to-side until it snaps

into place. Remove the cover by pressing in on the middle of both ends (where it
is labeled PUSH ) and lifting upwards.

Loading the Magazine

Once you have placed the magazine on the carriage, the DAT Autochanger must

initiate a loading process. During this procedure the DAT Autochanger checks and

maps the position of each cassette and makes sure that all cassettes are inserted into

the magazine correctly. If you are using the sequential access mode the DAT

Autochanger inserts the first cassette into the drive.

p Make sure the magazine is placed correctly on the carriage.

p Close the door and press LOAD. The DAT Autochanger will initiate the loading

procedure.

Note

The door must be closed before the LOAD or UNLOAD functions will
activate.

24 Operation and Maintenance

Note

In the sequential access mode, if you press UNLOAD before the
DAT Autochanger has finished loading the magazine, the
robotics will finish mapping and checking the cassettes and then
move the magazine to the unload position (the far left) without
inserting a cassette into the drive.

In random access mode, if the DAT Autochanger has not
finished loading the magazine, pressing UNLOAD will have no
effect.

Attempting to Load the Magazine with a
Cassette Already in Drive

If you attempt to load the magazine while there is a cassette in the drive, the DAT
Autochanger will attempt to load the cassette. Upon finding there is a cassette in the
drive, the DAT Autochanger will stop the load and flash an error message (see
section titled DAT Autochanger Warning Lights in Chapter 5 for a description of
error messages). In this case, proceed as follows:

If you are using sequential access mode

p Press and hold LOAD and UNLOAD simultaneously until all three front panel

lights flash Then proceed as noted below for random access mode.

If you are using random access mode

p Press UNLOAD. This will unload the magazine.
p Press LOAD and UNLOAD simultaneously. This will move the gripper arm

away from the drive.

p Open the DAT Autochanger door. Press the eject button on the DAT drive. It

may take 30 seconds or more for the drive to eject the cassette.

Operation and Maintenance 25

Note

The drive eject button is located on the top front of the drive. Look
beyond the arm to the drive.

p Remove the cassette manually. You can place it back in the magazine, if desired.

p Close the DAT Autochanger door. You can now reinitiate the load procedure.

Removing the Magazine from the DAT
Autochanger

If you are using sequential access mode

Before physically removing the magazine from the carriage, you must first initiate

the UNLOAD procedure.

p Press UNLOAD and wait until the carriage moves the magazine to the far left of

the DAT Autochanger.

p Place the cover on the magazine by pressing gently on the top until you hear it

snap into place.

26 Operation and Maintenance

p Remove the magazine by using two hands to grasp the magazine and pull up and

toward you.

p Store the magazine in a cool dry place.

If you are using random access mode

When operated in random access mode, the software usually commands the DAT
Autochanger to unload a magazine (or individual cassette). The LOCKED LED is
intended to protect the system against unauthorized user intervention. When the
LOCKED LED is on, the DAT Autochanger ignores the LOAD and UNLOAD
buttons on the front panel. Use your system software to issue the UNLOAD
command.

Removing the Magazine with a Cassette in
Drive

If you wish to remove the magazine but there is a cassette in the drive, do the
following:

p Cycle power on the DAT Autochanger (turn the power switch off and then back

on after a few seconds have passed).

p Open the DAT Autochanger door.
p Press the eject button on the drive.
p It will take thirty seconds or more for the drive to eject the cassette.
p Close the door of the DAT Autochanger. Press the UNLOAD button to retrieve

the cassette and move the magazine to the unloaded position.

p Place the cover on the magazine and remove it as noted previously.

Loading an Individual Cassette

If for some reason you need to use a single cassette, you can load it manually (this
operation is the same as loading a cleaning cassette).

Operation and Maintenance 27

p Unload the magazine by pressing UNLOAD. The magazine will move

completely to the left.

p Press LOAD and UNLOAD simultaneously. This will cause the gripper arm to

move out from the drive opening.

p Open the DAT Autochanger door after the arm is fully extended.

p Insert the cassette into the drive opening with the write-protect tab up. Apply

moderate, steady pressure to the cassette. The drive will take approximately 20
seconds to load the cassette.

p Close the DAT Autochanger door and initiate desired program.

p If the drive does not eject the cassette when the program is finished, open the

DAT Autochanger door (the gripper arm should still be fully extended) and press
the drive eject button. It will take about 30 seconds for the drive to eject the
cassette.

Removing a Cassette from the Magazine

The data cassettes are easily slipped into and out of the magazine slots. To remove a

cassette, simply grasp it with two fingers and pull up. Make sure each cassette is

labeled so you know the contents, and their correct position in the magazine.

Storing the Magazine

Store magazines in a dry, cool environment. Always keep the dust cover on the

magazine.

The removable magazine allows for long-term archiving or off-site safety storage of

groups of cassettes.

You can duplex multiple DAT Autochangers so your system can mirror data backups

on each separate unit. With duplexing you have real time data assurance and the

ability to remove one magazine for off-site storage while the other remains for on-

line data access.

28 Operation and Maintenance

Cleaning the Drive Head

Caution

Using cloth swabs, cotton swabs, or cleaning agents, will void the
warranty. Use only a DDS cleaning cassette.

Clean the drive heads and tape path after 8 to 10 hours of tape motion (about once a
week under typical use). This cleaning frequency does not depend on the format, in
which you write and read data. However, if you are using the DAT Autochanger in a
particularly dirty environment, or if you operate it infrequently, we suggest that you
clean it more often. The drive keeps track of tape motion hours internally. When 24
tape motion hours have elapsed since the last cleaning, both drive front panel LEDs
will flash amber in unison (Media Caution Warning). We urge you to clean the drive
as soon as possible after the LEDs begin flashing.

Caution

Only cassettes labeled "DDS Cleaning Cartridge" should be used. Use
of Audio DAT cleaning cassettes will cause excessive wear to the drive
heads.

Drive LEDs

Operation and Maintenance 29

Caution

Use only an approved cleaning cassette to clean the heads. To prevent
contamination of the drive and damage to the heads, do not use the
cleaning cassette for more than the number of cleaning cycles specified
on the cassette label. Discard the cleaning cassette after you have used
it the specified number of cleaning cycles. Do not attempt to rewind the
material in the cleaning cassette and reuse it.

Please follow these cleaning directions carefully to assure that no damage will occur

to the drive, the DAT Autochanger, or media.

p Unload the magazine by pressing UNLOAD. The magazine will move

completely to the left.

p Press LOAD and UNLOAD simultaneously. This will cause the gripper arm to

move out from the drive opening. Open the DAT Autochanger door after the arm
is fully extended.

Note

Some application packages may allow a magazine slot to be used for a
cleaning cassette and automate its use. Refer to your application
software manual.

p Insert the cleaning cassette into the drive opening. The drive will load the

cassette and automatically begin the cleaning process. The cleaning cycle takes
approximately 15 seconds to complete.

30 Operation and Maintenance

Note

If there are no more cleaning cycles remaining for the cleaning cassette,
the drive will eject it immediately after insertion.

p When the cleaning is finished the drive will automatically eject the cassette.

Remove the cleaning cassette and write the date on the label so you have a
record of how many times it has been used and when.

p To confirm that a cleaning was performed, look at the LEDs on the front of the

drive. If the cleaning cycle was successful, the LEDs will be off. If the cleaning
cycle was not performed (because the cleaning cassette was at its end-of-tape),
the LEDs will continue to flash.

p Place the magazine onto the carriage. Close the DAT Autochanger door. Press

LOAD to initiate the load procedure.

The DAT Autochanger is once again ready for use.

Cleaning the Enclosure

The outside of the enclosure can be cleaned with a damp towel. If you use a liquid
all-purpose cleaner, apply it to the towel. Do not directly spray the enclosure.

Operation and Maintenance 31

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32 Operation and Maintenance

Chapter

Troubleshooting and Diagnostics

This Chapter. . .

p contains some general suggestions to aid you in solving

problems – should you ever run into them.

5

p includes information on warning lights.

33

DAT Autochanger Warning Lights

If any component of the DAT Autochanger is not communicating correctly, the

POWER LED and the BUSY LED will flash a warning message code.

The lights will blink in a sequence indicating a two-digit number. The POWER LED

flashes in slow blinks to indicate the left digit, after which the BUSY LED flashes in

fast blinks to indicate the right digit. For example, an error message code of 37

would cause the POWER LED to flash three slow blinks after which the BUSY LED

will flash seven fast blinks.

A list of user-correctable error message codes appears on the next page. If the error

message code your DAT Autochanger is indicating is not on this list, please call the

adic Customer Assistance Center for help.

In all cases, after removing the cause of the problem (or if you can't find a cause)

press and hold LOAD and UNLOAD simultaneously to reset the DAT Autochanger.

If the error message is not listed, try to reset the DAT Autochanger by pressing

LOAD and UNLOAD simultaneously. If the DAT Autochanger does not reset, or if

you get the same error again, call the adic Customer Assistance Center, at: (206)

883-4357, and be prepared to tell them what the error message is – and what the

conditions are.

34 Troubleshooting and Diagnostics

Error Message Codes

Code

07 Source empty Reset DAT Autochanger and reload magazine. Sequential
10 Cassette present − beam

12 Illegal SCSI ID Change SCSI ID to valid ID using the rear

15 Unexpected pick arm out

16 Unexpected magazine

21 No arm out position

23 Unexpected cassette

25 Unable to retrieve cassette Check that the cassette sliding door is not

32 Load cassette failure Check to make sure cassette is inserted in the

37 Reverse cassette failure Make sure that the cassette is inserted in the

Meaning/Problem Action Mode of

Operation

intermittently blocked

position

home position

detected

sensor block

Check that cassette present sensor is not
inadvertently blocked by foreign object.

panel switch.
Check to see if there is something obstructing

arm. Remove it and reset DAT Autochanger.
Check to see that magazine is seated correctly

and that nothing is obstructing its movement.
If there appears to be no obstruction, unload
magazine and reload it from front panel.

Check to see if there is something obstructing
arm. Remove it and reset DAT Autochanger.

Check for foreign material obstructing
cassette-present beam and remove as
necessary. Check to see that magazine is
seated correctly and that nothing is obstructing
its movement. If there appears to be no
obstruction, unload magazine and reload it.

staying open.

magazine correctly and that nothing is
obstructing it from moving into the drive.

magazine correctly. All the write-protect tabs
should be facing you at the upper right.

Sequential

Random

Sequential

Sequential

Sequential

Sequential

Sequential

Sequential

Sequential

Troubleshooting and Diagnostics 35

Drive LEDs

The drives used in the DAT Autochanger employ front panel LEDs to indicate SCSI

interface activity, drive fault conditions, and cartridge status. The following

illustration shows a close-up of the Sony SDT5000 drive and the location of the

warning lights. Refer to the following tables for descriptions of the methods

employed by different drives to indicate activity, status, and fault conditions.

Drive LEDs

36 Troubleshooting and Diagnostics

Hewlett Packard C1533A/C1537A

TAPE LED (bottom) CLEAN LED (top) MEANING

Flashing green (½ sec

Off Cartridge activity — load or unload

on, ½ sec off)

Fast flashing green (¼ sec
on, ¼ sec off)

Steady green Off Cartridge loaded, drive online
Off Flashing amber (½ sec on,

Off Steady amber Drive fault
Flashing green (½ sec on,

½ sec off)

Off SCSI activity — read or write

Media Caution Signal

½ sec off)

Off Self-test in progress

Troubleshooting and Diagnostics 37

Sony SDT-5000/SDT-7000/SDT-9000

Busy LED (Top) Tape LED (Middle) Status LED

MEANING

(Bottom)

Off Off Off No cartridge present/no activity
On Off Off SCSI activity — read or write
Fast flashing (¼ sec on,
¼ sec off)
Fast flashing (¼ sec on,
¼ sec off)
Off On Fast flashing (¼ sec on,

Off On Off Cartridge loaded/no activity
On On Off Cartridge loaded/SCSI activity
Fast flashing (¼ sec on,
¼ sec off)
* On On Cartridge loaded/write

* Long, slow flashing (3½

Long, slow flashing (3½
sec on, ½ sec off)
* * Long, slow flashing (3½

* * Flashes once for ¼ sec

* * Flashes twice once for ¼

Flashes once for ¼ sec
then stays off for 1 sec
* Flashes once for ¼ sec

Fast flashing (¼ sec on,
¼ sec off)
Fast flashing (¼ sec on,
¼ sec off)

On Off Cartridge loaded/SCSI and

sec on, ½ sec off)
* * High humidity detected

* * Waiting for reset

then stays off for 1 sec

Off Drive loading/unloading

On Drive loading/unloading with

cartridge write protected
Cleaning cartridge at end of

¼ sec off)

* Media Caution Signal —

sec on, ½ sec off)

then stays off for 1 sec

sec then stays off for 1
sec

* Waiting for eject

media (no cleaning cycles
remaining)

drive activity

protected

excessive errors detected

Media Caution Signal —
predetermined number of tape
head motion hours reached
Drive mechanical failure
detected
Drive circuitry failure detected

38 Troubleshooting and Diagnostics

Environmental Considerations

For best performance of your DAT Autochanger, please observe the following
guidelines:

p If you expose cassettes to temperatures outside the operating limits – 40-113°F

(5-40°C) – stabilize them by leaving the cassettes in the operating temperature
for a minimum of two hours before you use them.

p Avoid temperature problems by ensuring that the DAT Autochanger's side and

rear are not obstructed, so that the drive has adequate ventilation.

p Position the DAT Autochanger where the temperature is relatively stable (i.e.,

away from open windows, fan heaters and doors).

p Avoid leaving cassettes in severe temperature conditions, for example, in a car

standing in bright sunlight.

p Avoid transferring data (reading from and writing to cassettes) when the

temperature is changing by more than 15°F (10°C) per hour.

When You Call adicadic Customer Assistance

Before calling adic Customer Assistance, follow these steps – which will help you
take full advantage of your call:

p Review all documentation carefully. (Experience has demonstrated that most

questions are answered in your documentation.)

p Be prepared to explain whether the software or hardware has worked properly at

anytime in the past. Have you changed anything recently?

p Pinpoint the exact location of your problem, if possible. Note the steps that led to

the problem. Are you able to duplicate the same problem or is it a one-time
occurrence?

p Note any error messages displayed on your PC screen or file server. Write down

the exact error message.

p If at all possible, call while at your computer, with adic's system installed and

turned on.

p If running on a network, have all relevant information available (i.e., type,

version #, network hardware, etc.).

Troubleshooting and Diagnostics 39

p Be prepared to provide:

• Your name and your Company's name

• Model number

• Serial number of unit (located on the rear face by the power switch)

• Software version numbers
 device driver
 archive/restore

• Hardware configuration, including firmware version, date and number.

• Type of PC, DOS version, clock speed, RAM, network type, network ver-

sion, and any special boards installed

• Type and brand of media

• A brief description of the problem

• Where you purchased the adic system

Having this information available when you call for customer assistance will enable
adic to resolve your problem in the most efficient manner possible. Then call the
Customer Assistance line.

Note

Call adic Customer Assistance at: [phone].
If you wish, you may contact adic Customer Assistance through the

adic BBS at: [phone], or by leaving Internet E-mail at:
[e-mail].

40 Troubleshooting and Diagnostics

Return for Repair RMA (Return Merchandise

Authorization)

When you and adic Customer Assistance have determined that you need an RMA
(see section, When You Call adic Customer Assistance), be prepared with the
following information:

Note

Be sure you have tried all trouble shooting techniques in the various
manuals before calling.

• Model number, serial number, and a brief, descriptive explanation of the

problem.

• Complete address information (be sure you give any mail stops or special

codes at the time the RMA is issued).

• If the item is NOT in warranty, you will be charged for the repairs.

Therefore, the Customer Assistance personnel will need a P.O. number at the
time the RMA number is issued. Until credit information can be obtained by
our accounting department, the system may be shipped back COD to first­time customers.

• It is also necessary to send the complete system, including interface card or

controller, interface cables, and the unit. A defective external component
and/or the drive itself may have caused problems.

Current labor rates will be quoted at the time the RMA is issued.

Note

Following this RMA procedure will expedite handling, repairs and the
return of equipment.

Troubleshooting and Diagnostics 41

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42 Troubleshooting and Diagnostics

Glossary

Appendix

A

This Appendix. . .

p contains terms and definitions of expressions commonly used

with the DAT Autochanger and the DDS drive.

43

byte

8 bits or one character

C
cassette

cleaning
cassette

cm
DDS

4mm DDS
data
cassette

FCC
GB
HSM

Celsius (Centigrade)
A storage medium item. A cassette is sometimes called a tape or

cartridge and is capable of storing vast amounts of magnetically­written data. Some cassettes can store more than 16 gigabytes of
data.

Media used to clean the drive heads and tape path.

centimeter (0.3937 inches)
Digital Data Storage is the original industry-standard data

interchange recording format that supports the use of DAT for
computer applications. The DDS format is an overlay to the basic
DAT audio format.

Media used in the DAT Autochanger. It is a data-quality 4mm metal­particle cassette. These cassettes require no formatting or other
media conditioning before use. These cassettes must be adic
approved.

Federal Communications Commission
gigabyte (1 GB = 1,024 Megabytes)
Hierarchical Storage Management – a system where different types

of storage medium are used based on cost and time efficiency. For
example, for fastest access, data is usually stored on a local hard
drive. If you have a very large file that is needed occasionally, you
may store it on a tape in a DAT Autochanger magazine, or on an
optical drive. In an HSM system, the data source should be
transparent to the user.

Hz
initiator

KB
LED

44 Glossary

Hertz (replacement for "cycles-per-second").
A host computer system that requests an operation to be performed

by a target device.
Kilobyte (1 KB = 1,024 bytes)
Light Emitting Diode, a commonly used display that glows when

supplied with a specified voltage.

load

The process where the DAT Autochanger checks each slot to see if a
cassette is physically present, and if so, whether the orientation of
the cassette in the magazine is correct. It also places the magazine in
position for the first cassette to be inserted into the drive. In
sequential mode, the first cassette is physically inserted into the
drive.

magazine

MB
mm
Random

Access
Mode

RMA
RMA

number
SCSI

SCSI ID

The item that holds the tape cassettes for use by the DAT
Autochanger. The magazine holds 12 cassettes. The magazine also
provides long-term covered storage of cassettes.

megabyte (1 MB = 1,024 Kilobytes)
millimeter (0.03937 inches)
Gives the software the ability to communicate with the robotics in

such a way as to be able to access the cassettes in the magazine (and
data on the cassettes) in any order.

Return Merchandise Authorization.
An identifying number given to a customer who needs to return

equipment for repair, whether under warranty or not.
Small Computer System Interface. An industry standard for

connecting peripheral devices and their controllers to a
microprocessor. The SCSI defines both hardware and software
standards for communication between a host computer and a
peripheral device0.

.
The octal representation of the unique address (0 to 7) assigned to a

SCSI device.

SCSI bus

Sequential
access
mode

slot

Signal path or line shared by the devices on the same SCSI channel.
Information is sent to all devices throughout the same bus; only the
device to which it is addressed will accept or respond to it.

The cassettes in the magazine are inserted into the drive in a
sequential manner, i.e., number 1 is first, number 2 is second, etc.
When the last cassette is ejected from the drive, the sequence will
either stop and issue an error message or loop back to the first
cassette. (See also, Random Mode.)

The place within the magazine where the media is placed. Each slot
has a reference position, i.e., position 1 through position 12.

Glossary 45

terminator

A physical block that tells the SCSI bus that this is the end of the
line. A terminator is required at both ends of a SCSI bus. A bus may
be terminated internally (on a device inside the host system) or
externally on a peripheral device.

unload

The process that returns the magazine to its resting position where it
can be removed from the DAT Autochanger.

46 Glossary

Specifications

This Appendix. . .

p contains specification information on the DAT Autochanger and

the DDS drive.

Appendix

B

47

Specifications

Drive

Type: HP C1533A (DDS-2)

HP C1537A (DDS-3)
Sony SDT-5000 (DDS-2)
Sony SDT-7000 (DDS-2)
Sony SDT-9000 (DDS-3)

Data Transfer Rate:
(average 2:1 compression)

Load Time: 25 seconds max

Up to 144 MB/min. (Sony SDT-9000)
Up to 120 MB/min. (HP C1537A)

Changer

Magazine: 12 Cassettes
Media type: Data quality DDS metal-particle cassettes
Indicators and

Controls:

Interface: 8-bit, single-ended, SCSI 2
Magazine data capacity: 12 GB per 125-meter cassette, native mode

LOAD and UNLOAD buttons, POWER LED and
LOCKED LED to monitor and control system
status.

(24GB @ 2:1 compression)
288 GB for twelve 125-meter cassettes

(2:1 compression)

Reliability

Maintenance: Use cleaning cassette after 8 to 10 hours of tape

use.

MSBF: Greater than 100,000 cassette changes (net of

drive and media)

MTBF: More than 80,000 power-on hours

More than 200,000 @ 20% duty cycle (Sony drive)
More than 200,000 power-on hours @ 12% duty

cycle (HP drive)

MTTR: Within 30 minutes

Physical

Dimensions: 17.0" (w) x 13.5" (d) x 8.0" (h)
Weight: 27 lb.

48 Specifications

Power Consumption

Less than 65 Watts

Environment

Electrical 100-240 VAC

Automatic AC line voltage selection

Temperature 5° C to 40° C (Operating)

-40° C to 70° C (Storage/Shipping)

Humidity 20% to 80% (Operating)

5% to 95% (Storage/Shipping)

Vibration 0.25G (5-500 Hz) (Operating)

0.5G (5-500 Hz) (Storage/Shipping)

Shock 2G Operating

30G Storage/Shipping

Specifications 49

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50 Specifications

Index

51

— A —

error messages, 25, 39

AC Power Connector, 20
archiving, 28

— B —

backup software, xi, 2, 7, 9, 15
bail locks, 12, 13
Busy LED, 19, 34, 38

— C —

cassette labels, 23
cleaning cassette, 6, 27, 29, 30, 31, 44, 48
cleaning drive head, 22, 29
cleaning enclosure, 32
clearance, 2
configuration, 40
confirmation of cleaning, 31
connecting interface cables, 12
copyright, ii, iii
customer assistance, ii, 12, 34, 39, 40, 41

— D —

— F —

front panel, xi, 18, 25, 27, 29, 35, 36

— H —

heads, 5, 6, 22, 29, 30, 44
hierarchical storage management, 2, 44
host computer, x, xi, 2, 4, 9, 10, 12, 14, 15,

18, 20, 23, 44, 45
HSM, 2, 44
humidity, 38

— I —

indicators/controls, 48
inserting cassettes into magazine, 22
inserting magazine into VLS, 23
installing backup software, 15
interface cable, 12, 13, 20, 41
interference, iv

— L —

data transfer rate, 48
DDS, 4, 5, 6, 22, 29, 43, 44, 48
Declaration of Conformity, v
dimensions, 2, 48
drive eject button, 26, 27
drive type, 48
drive warning lights, 22
duplexing, 28
dust cover, xi, 5, 22, 23, 28

— E —

electrical, 14
environment, 23, 28, 29
environmental considerations, 39
Error Message Codes, 35

LED, 19, 37, 44
LOAD button, xi, 18
loading individual cassette, 27
loading magazine, 24
loading magazine with cassette in drive, 25
locked LED, 19, 27, 48

— M —

magazine cover, 23
maintenance, 22
Mean Swaps Between Failures, 48
Mean Time Between Failures, 48
Mean Time To Repair, 48
media, 5, 22, 30, 38, 40, 44, 45, 48
media caution signal, 6, 22, 29, 37, 38

Index 52

mode of operation, 3, 7, 14
Mode Selection Jumper, 8
near-line storage, 2

— N —

necessary tools, 3

— O —

off-line storage, 2
operating environment, 3

— P —

packaging materials, 3, 4
pick arm, 19, 35
power consumption, 49
Power Cord Protection, vi
Power LED, 19, 34, 48
power switch, 12, 18, 20, 27, 40
preparing the host computer, 9

— R —

random access mode, 7, 8, 25, 27
rear panel connectors, 20
removing the magazine, 26
return merchandise authorization, 41, 45
RMA, 41, 45

SCSI device, 13, 14
SCSI devices, 9
SCSI host adapter, 3, 10
SCSI ID, x, 9, 14, 20, 35, 45
SCSI ID Selector, 20
SCSI ID switches, 9
SCSI interface, x, 9, 10, 36
SCSI interface cable, x, 2, 12, 13
sequential access mode, xi, 7, 8, 9, 19, 24,

25, 26, 45
serial number, 41
shielded cable, iv
space requirements, 2
specifications, 48
Status LED, 38
storage environment, 3
storing the magazine, 28
system software, 10

— T —

Tape LED, 38
temperature, 3, 39
temperature problems, 39
terminator, 13, 46

— V —

ventilation, 39

— S —

Safety Warnings, vi
SCSI, 9, 45
SCSI bus, 45
SCSI bus terminator, x
SCSI channel, 9, 13, 14
SCSI connections, 2
SCSI connector, x, 9, 10, 12, 13
SCSI Connector, 20
SCSI controller card, 2

— W —

warranty, ii, iii, 4, 5, 41
weight, 48
write-protect switch, 5, 6

Index 53

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Index 54