StorageTek L20 Series Configuration guide

PART NUMBER EDITION NUMBER
PRODUCT TYPE
HARDWARE
MT9104 7
L20/L40/L80
Series of Tape Libraries
GENERAL INFORMATION MANUAL

L20/L40/L80
Series of
Tape Libraries
General Information Manual

ii Seventh Edition MT9104
Information contained in this publication is subject to change without notice.
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or
Global Learning Solutions
Storage Technology Corporation
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Please include the publication name, part number, and edition number in your correspondence if they are
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Seventh Edition (August 2004)
This edition contains 74 pages. See “Summary of Changes” on page iii for the revision history and
summary of changes made to this publication.
StorageTek and the StorageTek logo are trademarks or registered trademarks of Storage Technology
Corporation. Other products and names mentioned herein are for identification purposes only and may be
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MT9104 Seventh Edition iii
Summary of Changes
Date ReissueLevel Change
May 2001 Initial Release Refer to this edition for a description of the changes.
July 2001 Second Refer to this edition for a description of the changes.
December 2001 Third Refer to this edition for a description of the changes.
March 2002 Fourth Refer to this edition for a description of the changes.
September 2002 Fifth Refer to this edition for a description of the changes.
June 2003 Sixth Refer to this edition for a description of the changes.
October 2004 Seventh Preface:
Added Other Publications table under “Related
Publications.”
Chapter 1:
Revised second paragraph on first page.
Chapter 5:
Revised second and third paragraphs on page 5-1and first
bullet of last paragraph on page 5-2.
Chapter 6:
Revised item 7 in Figure 6-2.

Summary of Changes
iv Seventh Edition MT9104
This page intentionally left blank.

MT9104 Seventh Edition v
Contents
Summary of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ix
Alert Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Related Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xi
Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
StorageTek’s External Web Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
Customer Resource Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
Partners Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
Hardcopy Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
1: Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
External Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Power System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Comparison of Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2: Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
3: Configuration Flexibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Adding Cell and Drive Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Conversion Bills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Models and Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Cartridge Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Cartridge Access Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Compatibility with Storage Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
4: Adaptive Media Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Supported Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Audit of Library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Tape Management Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Electronics Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Contents
vi Seventh Edition MT9104
LLC Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Personality Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
5: Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
6: Advanced Rotational Robotics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
L20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
L40 and L80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Advanced Hand-Camera Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Digital Vision Camera System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
7: User Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Operator Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Library Status Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Library Admin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Library Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Framework Library Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
L20 Guided Installation Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
8: Typical Customer Environments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
UNIX Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Small and Midsize Environments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
9: High Availability and Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-1
Robust Mechanical Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Fault-Tolerant Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
Critical Component Monitoring and Error Notification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
10: Serviceability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-1
No Periodic or Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
Hot-swappable Power Supplies (L40/L80) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
Service Offerings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
Safety Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2
A: Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Drive Power Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
Agency Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Glossary-1
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Index-1

MT9104 Seventh Edition vii
Figures
Figures
Figure 1-1. L20 Tape Library Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Figure 1-2. L40 Tape Library Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Figure 1-3. L80 Tape Library Front View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Figure 6-1. L20 Tape Library Internal View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Figure 6-2. L40 Library Internal View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Figure 6-3. L80 Library Internal View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Figure 6-4. L40 and L80 Robotic Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

Tables
viii Seventh Edition MT9104
Tables
Table 1-1. Library Model Comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Table 2-1. Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Table 3-1. Conversion Bills for Adding Cell and Drive Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Table 3-2. Models and Features for Adding Cell and Drive Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Table 3-3. Compatible Storage Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Table 5-1. Compatible Drives and Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Table 9-1. Reliability Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Table A-1. Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Table A-2. L20 Power Specifications without Drives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Table A-3. L40 and L80 Power Specifications without Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Table A-4. Drive and Tray and Cartridge Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
Table A-5. Drive Power Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
Table A-6. Agency Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9

MT9104 Seventh Edition ix
Preface
This general information manual provides high-level information about StorageTek’s
L20, L40, and L80 Tape Libraries. For publications that contain more detailed
information, see “Related Publications” on page xi.
This manual presents information for data processing and application- development
personnel, such as MIS managers, storage administrators, system analysts, and
performance specialists.
■Organization
This manual contains:
Chapter 1 “Product Overview” introduces the libraries.
Chapter 2 “Features and Benefits” provides information about the benefits and
features.
Chapter 3 “Configuration Flexibility” describes the flexibility of the libraries.
Chapter 4 “Ada ptive Medi a Techno log y” describes how the libraries adapt to
different media.
Chapter 5 “Connectivity” describes the libraries’ connectivity options.
Chapter 6 “Advanced Rotational Robotics” describes the robotics.
Chapter 7 “User Interfaces” describes the ways in which a user can interact with
and monitor the library.
Chapter 8 “Typical Customer Environments” lists the typical networks and
environments in which the libraries operate.
Chapter 9 “High Availability and Reliability” describes the design of the libraries
for reliability.
Chapter 10 “Serviceability” lists the available service options.
Appendix A “Specifications” provides product specifications for the libraries.
Glossary “Glossary” defines terms and abbreviations in this and other product-
related publications.
Index “Index” provides a way to quickly access specific information.

x Seventh Edition MT9104
■Alert Messages
Alert messages call your attention to information that is especially important or that has a
unique relationship to the main text or graphic.
Note: A note provides additional information that is of special interest. A note might
point out exceptions to rules or procedures. A note usually, but not always,
follows the information to which it pertains.
CAUTION:
A caution informs the reader of conditions that might result in damage to
hardware, corruption of data, corruption of application software, or long-
term health problems in people. A caution always precedes the
information to which it pertains.
WARNING:
A warning alerts the reader to conditions that might result in injury or
death. A warning always precedes the information to which it pertains.
■Conventions
Typographical conventions highlight special words, phrases, and actions in this
publication.
Item Example Description of Convention
Document
titles
System Assurance Guide Italic font
Emphasis not or must Italic font
File names fsc.txt Monospace font
Hypertext links Figure 2-1 on page 2-5 Blue (prints black in hardcopy
publications)
URLs www.storagetek.com Blue (prints black in hardcopy
publications)

MT9104 Seventh Edition xi
■Related Publications
Refer to the following publications for additional information:
Library Documentation/Training Part Number
L20 Tape Library CRU Instructions 96002
L20 Tape Library Installation Guide 96052
L20 Tape Library User’s Guide 95961
L40 Tape Library CRU Instructions 96031
L40 Tape Library Installation Manual 96053
L40 Tape Library Ordering Guide MT5011
L40 Tape Library User’s Guide 96005
L40/L80 Tape Library Drive CRU Instructions 96006
L80 Tape Library CRU Instructions 96051
L80 Installation Manual 96054
L80 Tape Library Ordering Guide MT5012
L80 Tape Library User’s Guide 96021
L20/L40/L80 Installation, Configuration, Operation
Training
CRS-100507
Tape Drive Documentation Part Number
DLT TM 7000 Tape Drive Product Manual 313134501
DLT 8000 Tape Drive Product Manual Quantum 81-60118-02
DLT1 Installation and Operations Guide Benchmark 000826-01
DLT1 Product Specification Benchmark 000827-01
Super DLT Tape Drive Product Manual, CD included with drive
IBM Ultrium Tape Drive Guides CD included with drive
Hewlett Packard Ultrium Tape Drive Manual CD included with drive
Seagate LTO Tape Drive Product Manual CD included with drive
Other Publications Part Number
Crossroads Fibre Router User’s Manual DS30110
StorageNet 3300 Fibre Channel Router User Manual 461273-01
StorageNet 4300 Multi-Protocol Router User Manual 461271-01

xii Seventh Edition MT9104
■Additional Information
StorageTek offers several methods for you to obtain additional information.
StorageTek’s External Web Site
StorageTek’s external Web site provides marketing, product, event, corporate, and service
information. The external Web site is accessible to anyone with a Web browser and an
Internet connection.The URL for StorageTek is http://www.storagetek.com.
Customer Resource Center
StorageTek’s CRC is a Web site that enables members to resolve technical issues by
searching code fixes and technical documentation. CRC membership entitles you to other
proactive services, such as HIPER subscriptions, technical tips, answers to frequently
asked questions, addenda to product documentation books, and online product support
contact information. The URL for the CRC is http://www.support.storagetek.com.
Partners Site
StorageTek’s Partners site is a Web site that provides information about products,
services, customer support, upcoming events, training programs, and sales tools to
support StorageTek’s Partners. Access to this site, beyond the Partners Login page, is
restricted. On the Partners Login page, current partners who do not have access can
request a login ID and password and prospective partners can apply to become
StorageTek resellers.
The URL for the Partners site is http://members.storagetek.com.
Hardcopy Publications
Contact a StorageTek sales or marketing representative to order additional paper copies
of this publication or to order other StorageTek customer publications in paper format.

MT9104 Seventh Edition 1-1
1
Product Overview
The L20, L40, and L80 series of tape libraries are self-contained, fully automated
cartridge tape storage systems. This series of libraries provides an easy upgrade path from
a 10-cartridge model to an 80-cartridge model.
The libraries can be configured for either high voltage differential (HVD) or low voltage
differential (LVD) small computer system interfaces (SCSI). The HVD interface allows
longer cable lengths, but is slower and has fewer supported devices; the LVD interface
restricts cable length, but is faster and has more supported devices.The libraries can be
configured for SCSI interfaces or, with the addition of an internal or external Fibre
Channel router, for Fibre-to-SCSI operation.
The L20 and L40 tape libraries can be placed on a desktop (with optional cosmetic cover
and elastomer feet), the L80 tape library can be placed on the floor (deskside version with
cosmetic cover and a base with casters), or any of the three can be mounted in a standard
483 mm (19 in.) rack.
■External Components
The following figures identify the external components.
Figure 1-1. L20 Tape Library Front View (L201_311)
1. Operator panel (including status display)—used for configuration and diagnostic
testing
2. Lock for slide-out cartridge drawer—when open, you may access all cartridges
3. Cartridge access port (CAP)—used for entering and removing cartridges without
interrupting library operation
L201
_
31
1
2 3
1

External Components
1-2 Seventh Edition MT9104
Figure 1-2. L40 Tape Library Front View (L201_312)
1. Operator panel (including status display)—used for configuration and
diagnostic testing
2. Cartridge access port (CAP)—used for entering and removing cartridges
without interrupting library operation
3. Elastomer feet for desktop version
4. Viewing window
5. Door lock
L201
_
312
5
4
32
1

MT9104 Seventh Edition 1-3
External Components
Figure 1-3. L80 Tape Library Front View (L201_313)
1. Operator panel (including status display)—used for configuration and
diagnostic testing
2. Door locks
3. Cartridge access port (CAP)—used for entering and removing cartridges
without interrupting library operation
4. Casters for deskside version
5. Viewing windows
L201_313
1
5
LIBRARY
ACTIVE
STK L80-Ready
Cap: Select to Open
00 Empty
01 Empty
MENU SELECT
SERVICE
REQUIRED
CAP
OPEN
2
3
4

Power System
1-4 Seventh Edition MT9104
■Power System
The L20 and L40 libraries have one standard power supply. For the L40, you can order an
optional second supply to provide redundant power to the library and drives. The L80
has two standard power supplies, and you can order two redundant power supplies.
When you use the redundant power supplies, each supply should be plugged into a
separate circuit and powered-on to provide redundant power. If one supply fails, the
second supply automatically provides power.
■Comparison of Models
This table provides a quick overview of the libraries.
Table 1-1. Library Model Comparison
Library L20 L40 L80
Cartridge Slots 10, 20 20, 40 40, 60, 80
Height (in rack units) 4 U 10 U 18 U
Drives 1–2 1–4 1–8
Capacity (maximum uncompressed)
DLT 8000 800 GB 1.6 TB 3.2 TB
SuperDLT 220 2.2 TB 4.4 TB 8.8 TB
SuperDLT 320 3.2 TB 6.4 TB 12.8 TB
LTO Ultrium 2.0 TB 4.0 TB 8.0 TB

MT9104 Seventh Edition 2-1
2
Features and Benefits
The following table lists features and benefits of the libraries.
Table 2-1. Features and Benefits
Features Benefits
From 10 to 80 cartridge cells Expandability protects your investment by
allowing you to add capacity as you need
it.
Mixed media support, simultaneously Creates freedom to adapt to future tape
drive technology without changing
libraries.
Multiple upgrade path options Allows you to increase the performance
and capacity quickly and easily. In-frame
upgrade paths allow you to change the
number of drives, number of media slots,
and type of drive technology, or you can
perform a frame-to-frame upgrade.
Library Status tool Helps reduce administration costs and
maximize operational efficiency.
Facilitates remote monitoring of the
library, drives, CAP, media, and storage
cells. Also permits library reboot,
firmware (code) upgrades, and generates
valuable reports to perform remote
troubleshooting.
Library Admin An upgrade of the Library Status tool, this
provides enhanced maintenance and
diagnostic capabilities including a virtual
view of the library’s cells, statistics on the
library, drives, cells, and cleaning
cartridges, the ability to view and modify
the configuration of the library, drives,
and network, and run diagnostic routines
to verify the functionality of the library,
drives, and the robotic movements.

2-2 Seventh Edition MT9104
L20 Guided Installation Program This program helps you to install and
configure an L20 tape library and the
drives. It is available on the CD that
accompanies the L20 library.
Multiple leading tape technologies
offered, including: Linear Tape–Open
(LTO) Ultrium, Super Digital Linear
Tape (SDLT), and DLT 8000 drives
Provides high availability, high
throughput, and quick backups.
Cartridge access port (CAP) Permits quick and easy loading for batch
jobs without interrupting library
operation.
SAN-ready option Connectivity to Fibre Channel. Allows
data to be shared by multiple servers and
provides simple scalability, ensuring
enterprise-class business continuity.
Compact PCI™ expansion card Ensures expandability and standards
compliance.
Auto-sensing and configuration Prevents improper orientation of
cartridges. At initialization or power-on,
the robot attempts to pick up any
unreadable, unlabeled, or improperly
placed cartridges. If unretrievable, library
status will be “not ready.”
Autoloader Mode (L20 only) Easily configured from the operator
panel, the autoloader mode provides
sequential operation of the library,
allowing you to control the automatic
mount and dismount for a series of
cartridge tapes. This mode does not
require sophisticated software, yet still
provides unattended backup that reduces
administrative costs.
Monitoring of cooling system and
redundant power supplies and fans
(L40 and L80)
Ensures maximum uptime and availability
of your critical data. The redundant power
supply (L40 and L80) provides the ability
to operate from two separate AC circuits.
Hot-swappable tape drives, power
supplies, and fans
The drives are mounted on customer
replaceable drive trays, which makes drive
replacement easy, requires no special
tools, and does not interrupt library
operation (when configured with more
than one drive).
Table 2-1. Features and Benefits (Continued)