Quantum Tape Drive LTO-3 User Manual
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Quantum LTO-3 Tape Drive User’s Guide, P/N 50002764, B01, July 2005
Made in USA.
Quantum Corporation provides this publication “as is” without warranty of any kind, either express or
implied, including but not limited to the implied warranties of merchantability or fitness for a particular
purpose. Quantum Corporation may revise this publication from time to time without notice.
COPYRIGHT ST ATEMENT
Copyright 2005 by Quantum Corporation. All rights reserved.
Your right to copy this manual is limited by copyright law. Making copies or adaptations without prior
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the law.
TRADEMARK STATEMENT
Quantum and the Quantum logo are all registered trademarks of Quantum Corporation.
Other trademarks may be mentioned herein which belong to other companies.
LTO-3 Tape Drive User’s Guide iii
Contents
Preface xi
Chapter 1 Overview, Unpacking Instructions and Quick Start 1
Overview............................................................................................................. 1
Drive Configurations..................................................................................2
Features ........................................................................................................ 2
Unpacking and Inspection................................................................................3
Quick Start Guide ............................................................................................. 4
Internal LTO-3 Tape Drive Quick Start ...................................................4
Desktop LTO-3 Tape Drive Quick Start .................................................. 5
Internal Tape Drive Guidelines and Cautions............................................... 5
Chapter 2 Installation 7
Drive Installation Instructions ......................................................................... 7
Installing an Internal LTO-3 Tape Drive ........................................................8
Configuring an LVD Drive........................................................................ 8
Mounting the Internal LTO-3 Tape Drive............................................. 11
Connector Detail .......................................................................................12
ADI Free Cable Connector....................................................................... 13
Contents
iv LTO-3 Tape Drive User’s Guide
Connecting a SCSI Cable..........................................................................14
Checking the SCSI Termination..............................................................15
Connecting a Serial Cable for Tape Libraries........................................16
Bus Composition .......................................................................................17
Connecting a Power Cable.......................................................................18
Installing the LTO Driver.........................................................................18
Registering Your Tape Drive...................................................................18
Installing a Desktop LTO-3 Tape Drive ........................................................18
Setting the SCSI ID....................................................................................19
Connecting a SCSI Cable..........................................................................19
Checking the SCSI Termination..............................................................20
Connecting a Power Cord........................................................................21
Installing the LTO Driver.........................................................................21
Registering Your Tape Drive...................................................................21
Chapter 3 Operation 23
Understanding the Front Panel Display .......................................................24
Blink Codes .......................................................................................................25
Using LTO Cartridges......................................................................................26
Loading a Cartridge..................................................................................26
Unloading a Cartridge..............................................................................26
Write-protecting a Cartridge ...................................................................27
Cartridge Care and Maintenance............................................................28
Drive Maintenance...........................................................................................28
Cleaning the Tape Drive ..........................................................................29
Parking the Drive for Shipping ......................................................................30
Using the Load/Unload Button to Park the Drive...............................30
Using Software to Park the Drive ...........................................................30
Chapter 4 Theory 31
Track Layout .....................................................................................................31
Recording Method............................................................................................33
Data Buffer ........................................................................................................33
Data Integrity....................................................................................................33
Error-correction Code (ECC)...................................................................34
Servo-tracking Faults................................................................................35
Contents
LTO-3 Tape Drive User’s Guide v
Data Compression............................................................................................ 35
Data Compression Considerations......................................................... 36
Intelligent Data Compression ................................................................. 37
Chapter 5 Specifications 39
Physical Specifications .................................................................................... 40
Power Specifications........................................................................................42
Drive Performance Specifications..................................................................43
Environmental Requirements ........................................................................ 44
Injected Noise............................................................................................45
Reliability .......................................................................................................... 45
Mean Time Between Failures......................................................................... 46
Mean Time to Replace.............................................................................. 47
LTO Cartridge Specifications......................................................................... 47
Environmental Considerations...............................................................47
Cartridge Memory....................................................................................48
Cartridge Reliability................................................................................. 48
Regulatory Compliance ..................................................................................48
Safety Compliance .................................................................................... 48
Electromagnetic Compatibility (EMC) .................................................. 50
Disposal of Electrical and Electronic Equipment .......................................51
Chapter 6 UNIX Settings 53
A Word About SCSI Controllers....................................................................54
Configuring for the DEC/Compaq UNIX Environment ...........................54
Finding Existing SCSI Controllers and Devices ................................... 54
Configuring Digital UNIX Version 4.0 and later/Compaq
Tru64 Unix 5.x.................................................................................... 54
Configuring for the Sun Environment (Solaris 2.4, 2.5, 2.6, 7, 8, and 9)... 55
Finding Current SCSI Controllers and Targets .................................... 55
Types of Controllers ................................................................................. 56
Configuring the Device File st.conf........................................................ 56
Configuring for the IBM AIX Environment (AIX Version 4.1.x
and later) .................................................................................................... 58
Finding Existing SCSI Controllers and Devices ................................... 58
Configuring the LTO-3 Tape Drives using SMIT.................................58
Configuring for SCO Open Server 5.0.x ...................................................... 59
Contents
vi LTO-3 Tape Drive User’s Guide
Finding Existing SCSI Controllers and Devices ...................................59
Configuring the LTO-3 Tape Drive with mkdev..................................60
Configuring for Linux......................................................................................61
Finding Existing SCSI Controllers and Devices ...................................61
Using the LTO-3 Tape Drive ...................................................................62
Configuring for SGI Irix ..................................................................................63
Finding Current SCSI Controllers and Targets.....................................63
Modifying the IRIX Configuration File..................................................63
Configuring for HP-UX 11.0 ...........................................................................64
Finding Current Hardware/Driver Configuration..............................64
Attaching the LTO-3 Tape Drive ............................................................64
Chapter 7 Troubleshooting Guide 67
Installation Best Practices................................................................................67
Follow SCSI Best Practices.......................................................................67
SCSI Host Bus Adapters (HBA) ..............................................................67
Adding the Tape Drive.............................................................................68
Troubleshooting Suggestions .........................................................................69
Computer will not Boot............................................................................69
Computer Boots but Does Not Recognize the Tape Drive..................69
Tape Drive Recognized During System Boot But Not by
Operating System or Application....................................................71
Problems with Tape Drive and Cartridge .............................................72
Emergency Reset and Emergency Cartridge Eject...............................75
Problems During Backup/Restore Operations ....................................75
Index 81
LTO-3 Tape Drive User’s Guide vii
Figures
Figure 1 Typical Internal and Desktop Configurations ......................... 2
Figure 2 Internal LTO-3 Tape Drive Jumper Settings.............................9
Figure 3 Acceptable Mounting Orientations .........................................11
Figure 4 Internal LTO-3 Tape Drive Mounting Dimensions ............ 12
Figure 5 ADI Fixed Board Connector ..................................................... 13
Figure 6 ADI Free Cable Connector ........................................................ 14
Figure 7 Rear View of the Internal LTO-3 Tape drive ....................... 15
Figure 8 Two SCSI Termination Examples for the Internal LTO-3
Tape Drive .................................................................................. 16
Figure 9 Switches and Connectors on the Back of the Desktop
LTO-3 Tape Drive....................................................................... 19
Figure 10 SCSI Termination Examples for the Desktop LTO-3
Tape Drive .................................................................................. 20
Figure 11 Generic Front Panel Display .................................................... 24
Figure 12 Ultrium Cartridge Showing Write-Protect Switch................ 27
Figure 13 Layout of the Tracks on LTO Ultrium Tapes ........................ 32
Figure 14 Internal LTO-3 Tape Drive Dimensions..................................41
Figures
viii LTO-3 Tape Drive User’s Guide
LTO-3 Tape Drive User’s Guide ix
Tables
Table 1 ISCSI IDs and Jumper Settings for an Internal LTO-3
Tape Drive..................................................................................... 9
Table 2 Serial Interface Connector Pin Assignments (LTO-3)........... 16
Table 3 ADT Bus Connections................................................................17
Table 4 LTO-3 Tape Drive Blink Codes ................................................ 25
Table 5 Physical Specifications...............................................................40
Table 6 Voltage and Current .................................................................. 42
Table 7 Power Dissipation ...................................................................... 42
Table 8 Drive Performance Specifications............................................43
Table 9 Environmental Requirements................................................... 44
Table 10 Reliability.....................................................................................46
Table 11 Environmental Tolerances ........................................................ 47
Tables
x LTO-3 Tape Drive User’s Guide
LTO-3 Tape Drive User’s Guide xi
Preface
The LTO-3 Tape Drive is a high-performance 16-channel tape drive that
complies with the LTO interchange specifications. The drive is suited for
mid-range to high-end servers, mainframe systems, and tape library
automation systems.
Audience This document was written for users of the LTO-3 Tape Drive.
Purpose This document provides information about the LTO-3 Tape Drive
including:
• Installation
• Unpacking
• Basic library operations
• Specifications
•UNIX Settings
• Troubleshooting
Preface
xii LTO-3 Tape Drive User’s Guide
Document
Organization
This User’s Guide describes how to install, configure, and care for the
LTO-3 desktop and internal tape drives. Please read the appropriate
chapters and appendixes carefully, and keep this Guide handy for future
reference.
• Chapter 1,
Overview, Unpacking Instructions and Quick Start
provides on overview of LTO-3 Tape Drive and its features as well as
handling precautions and unpacking tips. It provides quick-start
instructions for getting the drives up and running in the shortest
possible time.
• Chapter 2,
Installation provides installation instructions for the
internal and desktop drives. It provides a summary of cabling and
connector specifications.
• Chapter 3,
Operation explains the use and operation of the drive and
describes maintenance procedures, including drive “parking.”
• Chapter 4,
Theory describes the theory of operation behind the
drives, including the technology used in various drive components.
• Chapter 5,
Specifications contains detailed drive and cartridge
specifications, as well as a summary of regulatory approvals and
WEEE Compliance statement.
• Chapter 6,
UNIX Settings describes the settings for Unix systems.
• Chapter 7,
Troubleshooting Guide provides troubleshooting
procedures you can follow in the unlikely event you encounter a
problem with your drive.
This document concludes with a detailed index.
Notational
Conventions
This manual uses the following conventions:
Note: Notes emphasize important information related to the main
topic.
Tech Tip: Tech Tips provide technical information which may be
helpful in performing the procedure.
Preface
LTO-3 Tape Drive User’s Guide xiii
Related
Documents
Refer to the appropriate product manuals for information about your
tape drive and cartridges.
SCSI-2 Specification
0
The SCSI-2 communications specification is the proposed American
National Standard for information systems, dated March 9, 1990. Copies
may be obtained from:
Global Engineering Documents
15 Inverness Way, East
Englewood, CO 80112
(800) 854-7179 or (303) 397-2740
Contacts Quantum company contacts are listed below.
Quantum Corporate Headquarters
0
To order documentation on the LTO-3 Tape Drive or other products
contact:
Quantum Corporation
P.O. Box 57100
Irvine, CA 92619-7100
(949) 856-7800
(800) 284-5101
Caution: Cautions indicate potential hazards to equipment and are
included to prevent damage to equipment.
Warning: Warnings indicate potential hazards to personal safety and
are included to prevent injury.
Preface
xiv LTO-3 Tape Drive User’s Guide
Technical Publications 0
To comment on existing documentation send e-mail to:
doc-comments@quantum.com
Quantum Home Page 0
Visit the Quantum home page at:
www.quantum.com
Customer Support 0
The Quantum Customer Support Department provides a 24-hour help
desk that can be reached at:
North/South America: (949) 725-2100 or (800) 284-5101
Asia/Pacific Rim: (International Code) + 61 7 3839 0988
Europe/Middle East/Africa: (International Code) + 44 (0) 1256 848748
Send faxes for the Customer Support Department to:
North/South America: (949) 725-2176
Asia/Pacific Rim: (International Code) + 61 7 3839 0955
Europe/Middle East/Africa: (International Code) + 44 (0) 1256 848777
Send e-mail for the Customer Support Department to:
Asia/Pacific Rim: apachelp@quantum.com
Europe/Middle East/Africa: eurohelp@quantum.com
Visit our web site:
www.quantum.com/support
LTO-3 Tape Drive User’s Guide 1
Chapter 1
1Overview, Unpacking
Instructions and Quick Start
This chapter provides an overview of this product and a quick start
guide. It also discusses unpacking and inspection considerations.
Topics covered in this chapter are:
• Overview
• Internal Tape Drive Guidelines and Cautions
• Quick Start Guide
• Internal Tape Drive Guidelines and Cautions
Overview 1
The LTO-3 is a high-performance 16-channel tape drive that complies
with the LTO interchange specifications. The drive is suited for midrange to high-end servers, mainframe systems, and tape library
automation systems.
The LTO-3 Tape Drive uses Ultrium data cartridges. Its capacity is
maximized using intelligent data compression. The drive has a native
capacity of 400 Gbytes (800 Gbytes assuming 2:1 data compression).
Chapter 1 Overview, Unpacking Instructions and Quick Start
Overview
2 LTO-3 Tape Drive User’s Guide
Drive
Configurations
1
The LTO-3 Tape Drive has a 5¼-inch, full-height form factor, with
automatic electromechanical cartridge soft load. The drive is available as
an internal and a desktop drive.
• Internal LTO-3 Tape Drive fits in a 5¼-inch full-height drive bay.
• Desktop LTO-3 Tape Drive is a stand-alone unit with a built-in power
supply.
Figure 1 Typical
Internal and Desktop
Configurations
Features 1 The following list summarizes the key features of the LTO-3 Tape Drive.
•Performance
• Up to 68 Mbytes-per-second native transfer.
• 13-Speed Transfer matches tape drive speed to that of the host —
optimizes data transfers, resulting in shorter backup times and
increased reliability.
• Two convenient form-factors:
• 5¼-inch internal form-factor for installation in a 5¼-inch half-
height space.
• External desktop form-factor.
Chapter 1 Overview, Unpacking Instructions and Quick Start
Unpacking and Inspection
LTO-3 Tape Drive User’s Guide 3
• Intelligent data compression maximizes performance and capacity by
analyzing compressibility prior to recording.
• Cartridge memory enables fast loading of cartridges and stores
pertinent information about the media.
• 128-Mbyte data buffer for high-performance.
• Tape Alert drive performance monitoring and reporting.
• Third generation read channel for increased maturity and data
integrity.
• Patented head positioner for increased data integrity.
• Shock damped isolated chassis.
• MediaShield increases media life through managed airflow dynamics
with isolated HTI chamber.
• SmartVerify includes two levels of ECC for extra data safety and
protection from errors.
• Reliable tape picking implementation for increased reliability.
• Custom-designed LSI circuitry for fast, efficient data processing.
• RISC processors for fast, efficient data processing.
• Supports a wide variety of UNIX platforms
Unpacking and Inspection 1
Although drives are inspected and carefully packaged at the factory,
damage may occur during shipping. Follow these steps for unpacking the
drive.
1 Visually inspect the shipping containers and notify your carrier
immediately of any damage.
2 Place shipping containers on a flat, clean, stable surface; then
carefully remove the contents. If the equipment is damaged, notify
your Quantum representative.
3 Always save the containers and packing materials for any future
reshipment.
Chapter 1 Overview, Unpacking Instructions and Quick Start
Quick Start Guide
4 LTO-3 Tape Drive User’s Guide
Quick Start Guide 1
Use the following quick-start instructions to get your tape drive up and
running as quickly as possible.
Internal LTO-3
Tape Drive Quick
Start
1
Use the following procedure to install the internal LTO-3 Tape Drive.
Print the page and check each step as you complete it. If you need more
information about a step, turn to the section referenced in the step.
1 Unpack the contents of your drive package, and check for damaged items.
See Internal Tape Drive Guidelines and Cautions
on page 5.
2 Review the drive’s default settings and change them if necessary:
• SCSI ID: 6
• Terminator Power: Disabled
See Configuring an LVD Drive
on page 8.
3 Turn off your computer, remove its covers and power cable, and select a mounting bay
for the drive.
See Mounting the Internal LTO-3 Tape Drive
on page 11.
4 Connect a SCSI interface cable to the drive.
See Connecting a SCSI Cable
on page 14.
5 Terminate the SCSI bus if the internal tape drive is the last device on the SCSI bus.
See Checking the SCSI Termination
on page 15.
6 Connect a serial cable, if connecting the tape drive to a tape library.
See Connecting a Serial Cable for Tape Libraries
on page 16.
7 Connect a power cable to the drive.
See Bus Composition
on page 17.
8 Replace the computer covers and power cable, turn on the computer, and verify that
the internal tape drive is operating properly.
9 Register your tape drive.
See Registering Your Tape Drive
on page 18.
Chapter 1 Overview, Unpacking Instructions and Quick Start
Internal Tape Drive Guidelines and Cautions
LTO-3 Tape Drive User’s Guide 5
Desktop LTO-3
Tape Drive Quick
Start
1
Use the following procedure to install the desktop LTO-3 Tape Drive.
Print the page and check each step as you complete it. If you need more
information about a step, turn to the section referenced in the step.
Internal Tape Drive Guidelines and Cautions 1
The following guidelines and cautions apply to handling and installing
internal tape drives. Keep them in mind as you install the drive.
• Handle the drive by the sides rather than by the top cover to reduce
the risk of dropping the drive or damaging it during installation.
• Internal drives contain some exposed components that are sensitive
to static electricity. To reduce possible damage from static discharge,
the drives are shipped in a protective antistatic bag. Do not remove
the drive from the antistatic bag until you are ready to install it.
1 Unpack the contents of your drive package, and check for damaged items.
See Internal Tape Drive Guidelines and Cautions
on page 5.
2 Review the drive’s default settings and change them if necessary:
• SCSI ID: 6
See Setting the SCSI ID
on page 19.
3 Connect a SCSI interface cable to the drive.
See Connecting a SCSI Cable
on page 19.
4 Check the SCSI termination.
See Checking the SCSI Termination
on page 20.
5 Connect a power cable to the drive.
See Connecting a Power Cord
on page 21.
6 Turn on the computer, turn on the desktop tape drive, and verify that the desktop tape
drive is operating properly.
7 Register your tape drive.
See Registering Your Tape Drive
on page 21.
Chapter 1 Overview, Unpacking Instructions and Quick Start
Internal Tape Drive Guidelines and Cautions
6 LTO-3 Tape Drive User’s Guide
• Before you remove the drive from the antistatic bag, touch a metal or
grounded surface to discharge any static electricity buildup from
your body.
• Always lay the drive either on top of the antistatic bag or place it
inside of the bag to reduce possible damage from static discharge.
• Install LVD drives only in an LVD environment. Do not mix HVD
and LVD devices on the same SCSI bus.
• Due to the speed of the LTO-3 Tape Drive, it is recommended that a
maximum of one LTO-3 Tape Drive be connected to one host SCSI
adapter.
LTO-3 Tape Drive User’s Guide 7
Chapter 2
2Installation
This chapter explains how to install the internal and desktop LTO-3 Tape
Drives.
Topics covered in this chapter are:
• Installing an Internal LTO-3 Tape Drive
• Installing a Desktop LTO-3 Tape Drive
Drive Installation Instructions 2
After unpacking and inspecting your shipping containers and reviewing
the installation guidelines and cautions, proceed to the appropriate
section in this chapter for instructions on installing your LTO-3 Tape
Drive.
• Installing an Internal LTO-3 Tape Drive
.
• Installing a Desktop LTO-3 Tape Drive
on page 18.
Chapter 2 Installation
Installing an Internal LTO-3 Tape Drive
8 LTO-3 Tape Drive User’s Guide
Installing an Internal LTO-3 Tape Drive 2
Installing an internal LTO-3 Tape Drive with an Ultra 160 SCSI LVD
interface involves the following steps:
1 Configuring an LVD Drive
2 Mounting the Internal LTO-3 Tape Drive on page 11
3 Connecting a SCSI Cable
on page 14
4 Checking the SCSI Termination
on page 15
5 Connecting a Serial Cable for Tape Libraries
on page 16
6 Bus Composition
on page 17
7 Registering Your Tape Drive
on page 18
Configuring an
LVD Drive
2
Before you install the LVD tape drive in your computer, you may need to
configure the drive’s SCSI ID and terminator power features. The default
configuration settings for the LTO-3 Tape Drive is:
• SCSI ID: 6
• Terminator power: disabled
If you need to change these settings, refer to the following sections.
Otherwise, proceed to Mounting the Internal LTO-3 Tape Drive
.
SCSI ID
2
Jumper Pins: 1–2, 3–4, 5–6, 7–8
Default Setting: SCSI ID 6
Each SCSI device on the bus must have its own unique SCSI ID. The
internal tape drive is shipped with a default SCSI ID of 6. If another SCSI
device in the SCSI chain is using this ID, use jumper pins 1–2, 3–4, 5–6,
Chapter 2 Installation
Installing an Internal LTO-3 Tape Drive
LTO-3 Tape Drive User’s Guide 9
and 7–8 to change the SCSI ID of the LTO-3 Tape Drive (see table 1 and
table 2
), or assign a unique SCSI ID to the other SCSI device.
Figure 2 Internal
LTO-3 Tape Drive
Jumper Settings
Table 1 ISCSI IDs
and Jumper Settings
for an Internal L TO-3
Tape Drive
Note: The SCSI controller or host adapter generally uses ID 7. In
some systems, the boot drive uses ID 0 or ID 1. Avoid setting
your drive’s SCSI ID to these settings.
SCSI ID
Jumpers
1–2 3–4 5–6 7–8
0 Open Open Open Open
1 Shunted Open Open Open
SCSI ID=0
SCSI ID=1
SCSI ID=2
SCSI ID=3
SCSI ID=4
SCSI ID=5
SCSI ID=6
SCSI ID=7
SCSI ID=8
SCSI ID=9
SCSI ID=10
SCSI ID=11
SCSI ID=12
SCSI ID=13
SCSI ID=14
SCSI ID=15
Term. power
Pins: Function
:
1-2 SCSI ID bit 0
3-4 SCSI ID bit 1
5-6 SCSI ID bit 2
7-8 SCSI ID bit 3
9-10 Reserved
11-12 Termination Power
Drive Configuration Jumpers Pins
Jumper Settings
Drive Configuration
Jumpers Pins
Default
Settings:
Chapter 2 Installation
Installing an Internal LTO-3 Tape Drive
10 LTO-3 Tape Drive User’s Guide
Terminator Power 2
By default, terminator power is disabled on the internal LTO-3 Tape
Drive. To enable terminator power, place a jumper across pins 11 and 12.
2 Open Shunted Open Open
3 Shunted Shunted Open Open
4 Open Open Shunted Open
5 Shunted Open Shunted Open
6 (default) Open Shunted Shunted Open
8 Open Open Open Shunted
9 Shunted Open Open Shunted
10 Open Shunted Open Shunted
11 Shunted Shunted Open Shunted
12 Open Open Shunted Shunted
13 Shunted Open Shunted Shunted
14 Open Shunted Shunted Shunted
15 Shunted Shunted Shunted Shunted
Note: The internal LTO-3 Tape Drive does not provide SCSI
termination. Thus, a terminator must be installed on the drive
if it is the last device in a SCSI chain.
SCSI ID
Jumpers
1–2 3–4 5–6 7–8
Chapter 2 Installation
Installing an Internal LTO-3 Tape Drive
LTO-3 Tape Drive User’s Guide 11
Mounting the
Internal LTO-3
Tape Drive
2
You can mount the internal LTO-3 Tape Drive either horizontally or
vertically, with the drive’s left side facing up (see figure 3
).
If you mount the drive:
• Vertically the left side of the drive must face up and the side of the
drive should be within 5 degrees of horizontal.
• Horizontally, the base of the drive must be within 15 degrees of
horizontal and the drive must not be upside down.
Figure 3 Acceptable
Mounting Orientations
Mount the drive in a 5.25-inch, full-height drive bay and secure it using
two M3.0 X 5 metric screws on each side of the drive. Do not use screws
longer than 5 mm or you may damage the drive. Figure 4
shows the
locations of the mounting-screw holes on the side and bottom of the
drive, respectively.
Yes Yes No No
Chapter 2 Installation
Installing an Internal LTO-3 Tape Drive
12 LTO-3 Tape Drive User’s Guide
Figure 4 Internal
LTO-3 Tape Drive
Mounting Dimensions
Connector Detail 2 Two connectors are specified, a fixed board connector and a free cable
connector.
ADI Fixed Board Connector
2
The fixed board connector (see figure 5) is intended to be attached to a
circuit board in a removable medium device. It may also be used in the
automation device containing the removable medium device. The
attachment of the connector to the circuit board that is, surface mount or
through-hole) is beyond the scope of this standard. The location of the
84.3
147.8
48.90 ± 0.60
From Upper Bezel
Mounting Tabs
48.90 ± 0.60
From Upper Bezel
Mounting Tabs
Length of Drive
without Bezel
(Less connectors)
(Less connectors)
205.0 Max.
212.0 Max.
4 x M3.0 x 5.0 Deep
9.90 ± 0.20
189.70 ± 0.20
146.05 ± 0.25
79.24 ± 0.20
21.80 ± 0.20
79.24 ± 0.20
55.9
82.6 Max
4 x M3.0 Nearside
4 x M3.0 Farside
Chapter 2 Installation
Installing an Internal LTO-3 Tape Drive
LTO-3 Tape Drive User’s Guide 13
connector in a removable medium or automation device is beyond the
scope of this standard.
Figure 5 ADI Fixed
Board Connector
ADI Free Cable
Connector
2
The free cable connector is intended to mate with the fixed board
connector (see figure 6
).
Chapter 2 Installation
Installing an Internal LTO-3 Tape Drive
14 LTO-3 Tape Drive User’s Guide
Figure 6 ADI Free
Cable Connector
When the ADI free cable connector is used on both ends of a cable, likenumbered pins shall be connected together, that is, pin 1 on end A is
wired to pin 1 on end B, pin 2 on end A to pin 2 on end B, and so forth.
Connecting a SCSI
Cable
2
The internal LTO-3 Tape Drive has an Ultra 160 SCSI interface,
terminated by a 68-pin LVD SCSI connector. Use the following procedure
to connect a SCSI cable to this connector.
1 Turn off all power to the drive and the computer.
2 Attach the SCSI interface cable to the 68-pin SCSI interface connector
on the back of the drive (see figure 7
).
Chapter 2 Installation
Installing an Internal LTO-3 Tape Drive
LTO-3 Tape Drive User’s Guide 15
Figure 7 Rear View of
the Internal LTO-3
Tape drive
Checking the SCSI
Termination
2
The Internal LTO-3 Tape Drive does not provide SCSI termination. You
must place a SCSI bus terminator or a SCSI device with termination
enabled at the end of the SCSI chain. Two examples of SCSI termination
are shown in figure 8
.
The Internal LTO-3 Tape Drive provides terminator power if a jumper is
placed on the termination power jumper pins (see Terminator Power
).
Caution: Install an LVD drive only in an LVD environment.
Serial Library
Port
68-pin SCSI
connector
Drive configuration
jumper pins
Power
connector
Pin 1
Chapter 2 Installation
Installing an Internal LTO-3 Tape Drive
16 LTO-3 Tape Drive User’s Guide
Figure 8 Two SCSI
T ermination Examples
for the Internal LTO-3
Tape Drive
Connecting a
Serial Cable for
Tape Libraries
2
The internal LTO-3 Tape Drive includes an RS-422 serial interface for tape
libraries. This connector is an in-line shrouded and keyed 10-pin 2 mm
connector. It is located on the lower left side of the back of the drive (see
figure 7
). Table 2 shows the pin descriptions for the serial interface
connector.
Table 2 Serial
Interface Connector
Pin Assignments
(LTO-3)
Pin Number Description Pin Number Description
1
+Txa - Rx
d
6
Sense
d
2
-Txa - Rx
d
7
Sense
a
3
Ground
8
Reset
a
4
-Txd - Rx
a
9
Signal
aux
5
+Txd - Rx
a
10
Sense
aux
SCSI Controller
(termination enabled)
Tape drive
SCSI device
SCSI device
(termination
enabled)
(termination
disabled)
(no
termination)
SCSI Terminator
SCSI Controller
(termination enabled)
Tape drive
(no
termination)
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