IBM 220 User manual

7206 Model 220 External 4mm Tape Drive
7206 Model 220
4mm Tape Drive
Service Guide
SY32-0409-01


7206 Model 220 External 4mm Tape Drive
7206 Model 220
4mm Tape Drive
Service Guide
SY32-0409-01


Note!
Before using this information and the product it supports, be sure to read the general information under “Notices” on
page v.
First Edition (February, 2000)
This edition, SY32–0409–01, applies to Model 220 of the 7206 4mm Tape Drive and to all subsequent releases and
modifications until otherwise indicated in new editions. This edition applies only to the specified model of the
device.
© Copyright International Business Machines Corporation 2000. All rights reserved.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Contents
Notices ...............v
Safety and Environmental Notices .......vi
Danger Notices ............vi
Caution Notices ............vii
Attention Notices ...........vii
Product Recycling and Disposal ......vii
Battery Return Program .........viii
Environmental Design .........viii
Electronic Emission Notices.........viii
Federal Communications Commission (FCC)
Statement..............viii
Trademarks...............x
About This Guide ..........xi
Related Publications ...........xi
How to send your comments ........xii
Chapter 1. Reference Information....1
FrontView...............2
Operator Controls ...........2
Emergency Eject Feature .........3
Indicator Lights ............3
Rear View ...............6
Internal View ..............7
Rear View of the Drive ...........8
System Requirement............9
Specifications ..............9
Cleaning the Tape Drive ..........10
Chapter 2. Using the Media ......13
Types of Tape Cartridges ..........13
Recommendations for Data Cartridge Usage . . . 14
Data Cartridge Erasure ..........14
Storage and Shipping Environments ......14
Tape Cartridge Storage .........15
Operating in Harsh Environments .......16
Setting the Write-Protect Switch .......16
Chapter 3. Maintenance Analysis
Procedures.............17
Purpose of the MAPs ...........17
Flowchart of the MAPs ..........18
Step 1: Power and Fan...........19
Step 2: Electrical Outlet Voltage........19
Step 3: Power Cable ...........20
Step 4: Power Supply, Fan, and Tape Drive ....20
Step 5: Cooling Fan............21
Step 6: Tape Drive ............21
Step 7: SCSI Address Switch.........22
Step 8: SCSI Address Cable .........22
Step 9: Tape Drive Status Lights .......22
Step 10: Power Supply Voltage Level ......23
Step 11: Reassembly ...........24
Step 12: External SCSI Cable Connection ....24
Step 13: Terminator Connection........25
Step 14: Configuration...........25
Step 15: AIX Diagnostics ..........26
Chapter 4. Removal and Replacement
Procedures.............27
Handling Static-Sensitive Devices .......27
Removing and Replacing the Cover ......28
Removing and Replacing the Drive ......30
Removing and Replacing the Power Supply . . . 32
Removing and Replacing the Cooling Fan ....34
Manually Removing a Tape Cartridge .....35
Chapter 5. Parts Diagram and Parts
List ................37
How To Use This Parts List .........37
Example of Parts Listing .........37
Assembly 1: Parts Diagram .........38
Appendix A. Power Cables ......41
Appendix B. Ordering Tape Cartridges 45
Appendix C. Safety Inspection
Procedures.............47
Readers’ Comments — We’d Like to
Hear from You ...........51
© Copyright IBM Corp. 2000 iii

iv 7206 Model 220 Service Guide

Notices
This information was developed for products and services offered in the U.S.A.
IBM may not offer the products, services, or features discussed in this document in
other countries. Consult your local IBM representative for information on the
products and services currently available in your area. Any reference to an IBM
product, program, or service is not intended to state or imply that only that IBM
product, program, or service may be used. Any functionally equivalent product,
program, or service that does not infringe any IBM intellectual property right may
be used instead. However, it is the user’s responsibility to evaluate and verify the
operation of any non-IBM product, program, or service.
IBM may have patents or pending patent applications covering subject matter
described in this document. The furnishing of this document does not give you
any license to these patents. You can send license inquiries, in writing, to:
IBM Director of Licensing
IBM Corporation
500 Columbus Avenue
Thornwood, NY 10594
U.S.A.
For license inquiries regarding double-byte (DBCS) information, contact the IBM
Intellectual Property Department in your country or send inquiries, in writing, to:
IBM World Trade Asia Corporation
Licensing
2-31 Roppongi 3-chome, Minato-ku
Tokyo 106, Japan
The following paragraph does not apply to the United Kingdom or any other
country where such provisions are inconsistent with local law:
INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS
PUBLICATION “AS IS”WITHOUT WARRANTY OF ANY KIND, EITHER
EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer of express or
implied warranties in certain transactions, therefore, this statement may not apply
to you.
This information could include technical inaccuracies or typographical errors.
Changes are periodically made to the information herein; these changes will be
incorporated in new editions of the publication. IBM may make improvements
and/or changes in the product(s) and/or the program(s) described in this
publication at any time without notice.
Any references in this information to non-IBM Web sites are provided for
convenience only and do not in any manner serve as an endorsement of those Web
sites. The materials at those Web sites are not part of the materials for this IBM
product and use of those Web sites is at your own risk.
© Copyright IBM Corp. 2000 v

Any performance data contained herein was determined in a controlled
environment. Therefore, the results obtained in other operating environments may
vary significantly. Some measurements may have been made on development-level
systems and there is no guarantee that these measurements will be the same on
generally available systems. Furthermore, some measurement may have been
estimated through extrapolation. Actual results may vary. Users of this document
should verify the applicable data for their specific environment.
Information concerning non-IBM products was obtained from the suppliers of
those products, their published announcements or other publicly available sources.
IBM has not tested those products and cannot confirm the accuracy of
performance, compatibility or any other claims related to non-IBM products.
Questions on the capabilities of non-IBM products should be addressed to the
suppliers of those products.
All statements regarding IBM’s future direction or intent are subject to change or
withdrawal without notice, and represent goals and objectives only.
If you are viewing this information softcopy, the photographs and color
illustrations may not appear.
The drawings and specifications contained herein shall not be reproduced in whole
or in part without the written permission of IBM.
IBM has prepared this publication for use by hardware service representatives in
the maintenance or repair of the specific machines indicated. IBM makes no
representations that it is suitable for any other purpose.
Safety and Environmental Notices
Danger Notices
A danger notice calls attention to a situation that is potentially lethal or extremely
hazardous to people.
Use the following danger notices throughout this book.
DANGER
To prevent a possible electrical shock from touching two surfaces with
different electrical grounds, use one hand, when possible, to connect or
disconnect signal cables. (RSFTD004)
DANGER
Dangerous voltage being measured. (RSFTD005)
vi 7206 Model 220 Service Guide

DANGER
Up to 240 V ac is present at the power module connectors when the main
power cord is connected to a power source. (RSFTD010)
DANGER
An electrical outlet that is not correctly wired could place hazardous voltage
on metal parts of the system or the products that attach to the system. It is the
customer’s responsibility to ensure that the outlet is correctly wired and
grounded to prevent an electrical shock. (RSFTD201)
DANGER
To prevent a possible electrical shock when adding or removing any devices
to or from the system, ensure that the power cords for those devices are
unplugged before the signal cables are connected or disconnected. If possible,
disconnect all power cords from the existing system before you add or
remove a device. (RSFTD203)
DANGER
To prevent a possible electrical shock when installing the device, ensure that
the power cord for that device is unplugged before installing signal cables.
(RSFTD204)
DANGER
Do not attempt to open the covers of the power supply. Power supplies are
not serviceable and are to be replaced as a unit. (RSFTD217)
Caution Notices
A caution notice calls attention to a situation that is potentially hazardous to
people because of some existing condition.
Use the following caution notices throughout this book.
Attention Notices
An attention notice indicates the possibility of damage to a program, device,
system, or data.
Product Recycling and Disposal
Components of the system, such as structural parts and circuit cards, can be
recycled where recycling facilities exist. IBM does not currently collect and recycle
used IBM products from customers in the United States other than those products
that are involved in trade-in programs. Companies are available to disassemble,
reutilize, recycle, or dispose of electronic products. Contact an IBM account
representative for more information.
The system unit contains batteries and circuit boards with lead solder. Before you
dispose of this unit, these batteries and circuit boards must be removed and
discarded according to local regulations or recycled where facilities exist. This book
contains specific information on each battery type where applicable.
Notices vii

Battery Return Program
In the United States, IBM has established a collection process for reuse, recycling,
or proper disposal of used IBM batteries and battery packs. For information on
proper disposal of the batteries in this unit, please contact IBM at 1-800-426-4333.
Please have the IBM part number that is listed on the battery available when you
make your call. For information on battery disposal outside the United States,
contact your local waste disposal facility.
Environmental Design
The environmental efforts that have gone into the design of the system signify
IBM’s commitment to improve the quality of its products and processes. Some of
these accomplishments include the elimination of the use of Class I
ozone-depleting chemicals in the manufacturing process, reductions in
manufacturing wastes, and increased product energy efficiency. For more
information, contact an IBM account representative.
Electronic Emission Notices
The following Statement applies to this IBM product. The statement for other IBM
products intended for use with this product will appear in their accompanying
manuals.
Federal Communications Commission (FCC) Statement
Note: This equipment has been tested and found to comply with the limits for a
class B digital devices, 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:
vReorient or relocate the receiving antenna.
vIncrease the separation between the equipment and receiver.
vConnect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
vConsult an IBM authorized dealer or service representative for help.
Properly shielded and grounded cables and connectors must be used in order to
meet FCC emission limits. Proper cables and connectors are available from IBM
authorized dealers. IBM is not responsible for any radio or television interference
caused by using other than recommended cables or connectors or by unauthorized
changes or modifications to this equipment. Unauthorized changes or
modifications could void the user’s authority to operate the equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) this device may not cause harmful interferences, and
(2) this device must accept any interferences received, including interference that
may cause undesired operation.
Responsible Party:
viii 7206 Model 220 Service Guide

International Business Machines Corporation
New Orchard Road
Armonk, NY 10504
Telephone: [phone]
Industry Canada Compliance Statement
This Class B digital apparatus meets the requirements of the Canadian
Interference-Causing Equipment Regulations.
Avis de conformitéàla réglementation d’Industrie Canada
Cet appareil numérique de la classe B respecte toutes les exigences du Réglement
sur le matériel brouilleur du Canada.
European Community Compliance Statement
This product is in conformity with the protection requirements of EC Council
Directive 89/336/EEC on the approximation of the laws of the Member States
relating to electromagnetic compatibility. IBM cannot accept responsibility for any
failure to satisfy the protection requirements resulting from a non-recommended
modification of the product, including the fitting of non-IBM option cards.
This product has been tested and found to comply with the limits for Class B
Information Technology Equipment according to CISPR 22 / European Standard
EN 55022. The limits for Class B equipment were derived for typical residential
environments to provide reasonable protection against interference with licensed
communication devices.
Properly shielded and grounded cables and connectors (IBM part number 75G5958
or its equivalent) must be used in order to reduce the potential for causing
interference to radio and TV communications and to other electrical or electronic
equipment. Such cables and connectors are available from IBM authorized dealers.
IBM cannot accept responsibility for an interference caused by using other than
recommended cables and connectors.
Germany Only: This product is in conformity with the EN55022 Class B emission
limits.
Japanese Voluntary Control Council for Interference (VCCI) Statement
This product is a Class B Information Technology Equipment and conforms to the
standards set by the Voluntary Control Council for Interference by Information
Technology Equipment (VCCI). This product is aimed to be used in a domestic
environment. When used near a radio or TV receiver, it may become the cause of
radio interference. Read the instructions for correct handling.
Korean Government Ministry of Communication (MOC) Statement
Please note that this device has been approved for non-business purposes and may
be used in any environment including residential areas.
Notices ix

Trademarks
The following terms are trademarks of International Business Machines
Corporation in the United States, or other countries, or both:
AIX
IBM
RS/6000
Other company, product, and service names may be the trademarks or service
marks of others.
x7206 Model 220 Service Guide

About This Guide
Attention: Before attempting to work with the 7206 Tape Drive or using any of
the information in this guide, perform the safety inspection procedures described
in “Appendix C. Safety Inspection Procedures”on page 47.
Chapter 1, “Reference Information,”describes the operator controls, indicator
lights, connector locations, and hardware specifications of the 7206 Tape Drive. It
also tells how to clean the tape drive.
Chapter 2, “Using the Media,”describes the media to use in the 7206 Tape Drive.
Chapter 3, “Maintenance Analysis Procedures,”provides the maintenance analysis
procedures (MAPs) required to service the 7206 Tape Drive.
Chapter 4, “Removal and Replacement Procedures,”provides the removal and
replacement procedures required to service the 7206 Tape Drive.
Chapter 5, “Parts Diagram and Parts List,”provides a parts diagram and parts list
required to service the 7206 Tape Drive.
Appendix A, “Power Cables,”provides power cable information for different
countries.
Appendix B, “Safety Inspection Procedures,”provides steps to identify unsafe
conditions before working with the 7206 Tape Drive.
Store this guide with your system manuals.
Related Publications
v7206 Model 220 4mm Tape Drive Setup and Operator Guide, SA26–2006, provides
information about installing and operating the 7206 Model 220 Tape Drive.
vIBM Externally Attached Devices Safety Information manual, SA26-2004, provides
translations of danger notices.
© Copyright IBM Corp. 2000 xi

How to send your comments
Your feedback is important in helping to provide the most accurate and
high-quality information. If you have any comments about this book or any other
IBM documentation, fill out the readers’comment form at the back of this book.
vIf you prefer to send comments by mail, use the readers’comment form with the
address that is printed on the back. If you are mailing a readers’comment form
from a country other than the United States, you can give the form to the local
IBM branch office or IBM representative for postage-paid mailing.
vIf you prefer to send comments by FAX, use either of the following numbers:
–United States and Canada: 1-800-937-3430
–Other countries: 1-507-253-5192
vIf you prefer to send comments electronically, use one of these e-mail addresses:
–Comments on books:
[email protected]
IBMMAIL, to IBMMAIL(USIB56RZ)
Be sure to include the following:
vThe name of the book.
vThe publication number of the book.
vThe page number or topic to which your comment applies.
xii 7206 Model 220 Service Guide

Chapter 1. Reference Information
Attention: Before attempting to work with the 7206 Tape Drive or using any of
the information in this guide, perform the safety inspection procedures described
in “Appendix C. Safety Inspection Procedures”on page 47.
The 7206 Model 220 4mm Tape Drive is an external storage device that connects to
the IBM RS/6000
®
and stores additional data. The unit is a streaming tape drive
that uses Digital Data Storage (DDS) tape media.
The 7206 Tape Drive attaches to selected RS/6000 systems that use a low voltage
differential/single ended (LVD/SE) or SE Wide SCSI-2 interface which meets the
Small Computer System Interface-2 (SCSI-2) standard X3.131-1994 Rev. 10L of the
American National Standards Institute (ANSI).
The 7206 Tape Drive:
vSaves and restores system data files
vArchives important records
vInstalls operating system software upgrades
The sections that follow describe the operator controls and indicator lights on the
7206 Tape Drive. This chapter also shows the connector locations, lists hardware
specifications, and describes how to clean the tape drive.
© Copyright IBM Corp. 2000 1
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Front View
Figure 1 shows the front view of the 7206 Tape Drive.
1 Status lights 3 Power switch
2 Unload button 4 Power on light
Operator Controls
The 7206 Model 220 4mm Tape Drive has the following operator controls.
Power Switch
The power switch (3 in Figure 1) is a push button switch that enables the power
to be turned on or off. Push and release the button to turn the power on, when it
is off, or off when it is on. When the 7206 Tape Drive is on, the power-on light 4
is on.
Note: The symbol located beside the power switch is an International
Organization for Standardization (ISO) symbol for a push button switch.
Unload Button
The unload button 2 enables the tape cartridge to be ejected. The unload button
operates only when the 7206 Tape Drive power is on. To remove a cartridge, press
and hold the unload button for about one second.
Figure 1. Front View of the 7206 Model 220 4mm Tape Drive
27206 Model 220 Service Guide
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Emergency Eject Feature
Attention: This procedure may result in loss of data.
The 7206 Tape Drive includes an emergency eject and reset feature that releases the
tape cartridge and resets the drive. Use the feature if the cartridge does not move
properly or if the unload process fails.
To perform an emergency eject of the tape cartridge or a reset of the drive, press
and hold the unload button for at least 5 seconds. If a cartridge is in the drive, it
automatically ejects without rewinding.
Indicator Lights
The 7206 Tape Drive has the following indicator lights.
Power-On Light
When the 7206 Tape Drive is turned on, the power-on light (4 in Figure 1 on
page 2) comes on and stays on.
Status Lights
Three status lights (1 in Figure 1 on page 2) and their ISO symbols appear on the
7206 Tape Drive as follows:
Ready (green)
Activity (green)
Fault (amber)
The combinations of the lights and their definitions are shown in Table 1 on page 4.
Chapter 1. Reference Information 3
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Table 1. Definition of Status Light Combinations
Ready Fault Activity
Definition
Flashing Off Off The Power-On Self Test (POST) is running or
the test cartridge is running.
Off or On On Off or Flashing The tape drive requires cleaning. See
“Cleaning the Tape Drive”on page 10.
vIf the Ready light is on, a tape cartridge is
in the drive. If the light is off, a cartridge
is not in the drive.
vIf the Activity light flashes, a tape
cartridge is in the drive and tape
movement is occurring. If the light is off,
no tape movement is occurring.
Off Off or On Off One of the conditions exists:
vThe power is off (Fault light is off).
vThe POST completed successfully, but no
tape cartridge has been inserted.
vIf the Fault light is on, cleaning is
required. See “Cleaning the Tape Drive”
on page 10.
On Off or On Off or Flashing A data cartridge has been inserted.
vThe 7206 Tape Drive is ready to receive
commands from the system (whether the
Fault light is on or off).
vIf the Fault light is on, cleaning is
required. See “Cleaning the Tape Drive”
on page 10.
vIf the Activity light flashes, a tape
cartridge is in the drive and tape
movement is occurring. If the light is off,
no tape movement is occurring.
On Off or On Flashing The tape is in motion, and the 7206 Tape
Drive is running an operation or is cleaning.
Off Flashing Off The 7206 Tape Drive detected an internal
fault that requires corrective action.
vReset the error by turning the power off to
the 7206 Tape Drive, then turning it back
on, or by holding down the open/close
button for 8 seconds.
vIf the Fault light still flashes after the reset,
contact your service representative.
47206 Model 220 Service Guide

Notes:
1. The 7206 Tape Drive needs cleaning when the tape drive turns on the Fault
status light (solid amber). The light turns on when:
vThe 7206 Tape Drive determines that its soft error rate (recovered errors)
exceeds a preset soft-error rate limit, or
vThe 7206 Tape Drive has been used for 50 tape motion hours without
cleaning. Tape motion hours are defined as the time the tape drive is moving
tape.
When the Fault light turns on (solid amber), the 7206 Tape Drive causes AIX to
log an information error (TAPE_ERR6) in the AIX log, indicating that the tape
drive needs to be cleaned.
2. IBM only supports the use of IBM media.
3. The 7206 Tape Drive is designed to operate in normal office environments.
Dirty environments or other poor environments may damage the tape drive. It
is the responsibility of the customer to provide the proper operating
environment.
4. When the tape drive indicates that the drive needs to be cleaned, it is the
responsibility of the customer to clean the tape drive with the recommended
cleaning cartridge.
5. If a DDS2 diagnostic cartridge (P/N 8191146) is used in the 7206 Tape Drive,
that cartridge will do automatic diagnostics.
6. If a DDS1 diagnostic cartridge (P/N 21F8762) is used, that cartridge will be
immediately ejected as an incorrect cartridge type.
Chapter 1. Reference Information 5
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Rear View
Figure 2 shows the elements on the rear of the 7206 Model 220 Tape Drive.
1 SCSI address switch 3 Cooling fan
2 SCSI bus cable connectors 4 Power cable connector
Figure 2. Rear View of the 7206 Model 220 Tape Drive
67206 Model 220 Service Guide