IBM 7212 102 Service Manual

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ERserver

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7212 Model 102 External Storage Device Enclosure

7212 Model 102 Storage Device Enclosure Service Guide

SY44-0084-04

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ER s e r v e r

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7212 Model 102 External Storage Device Enclosure

7212 Model 102 Storage Device Enclosure Service Guide

SY44-0084-04

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Note!

Before using this information and the product it supports, be sure to read the general information under “Notices” on page v.

Fifth Edition (May 2004)

This edition, SY44–0084–04, applies to Model 102 of the 7212 External Storage Device Enclosure and to all subsequent releases and modifications until otherwise indicated in new editions. This edition applies only to the specified model of the device.

Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract

with IBM Corp.

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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. General Information . . . . .1

System Requirement . . . . . . . . . . . .3

RS/6000 and pSeries Systems . . . . . . . .3

AS/400 and iSeries Systems . . . . . . . .4

SCSI Bus Cables . . . . . . . . . . . . .4

Specifications . . . . . . . . . . . . . .8

Media Drive Environment and Use . . . . . . .9

Media Grades . . . . . . . . . . . . .9

Media Handling and Storage . . . . . . . .9

Environmental Issues . . . . . . . . . .9

Drive Cleaning . . . . . . . . . . . .9

SCSI Hardware Issues . . . . . . . . . .10

Microcode Updates . . . . . . . . . . .10

Summary . . . . . . . . . . . . . .10

Step 17 . . . . . . . . . . . . . . . .21

Step 18 . . . . . . . . . . . . . . . .21

Step 19 . . . . . . . . . . . . . . . .22

Step 20 . . . . . . . . . . . . . . . .23

Step 21 (AS/400 or iSeries Only) . . . . . . .23

Step 22 (AS/400 or iSeries Only) . . . . . . .24

Step 23 . . . . . . . . . . . . . . . .24

Step 24 . . . . . . . . . . . . . . . .25

Chapter 3. Removal and Replacement

Procedures . . . . . . . . . . . . .27

Handling Static-Sensitive Devices . . . . . . .27

Safety Considerations . . . . . . . . . . .27

Removing and Replacing the Cover . . . . . .28

Removing a Storage Device from the Enclosure . .29 Installing a Storage Device in the Enclosure . . .31 Removing and Replacing the Power Supply . . .33

Removing and Replacing the Cooling Fans . . . .35

Removing and Replacing the Power Switch

Assembly . . . . . . . . . . . . . . .36

Removing and Replacing the LED Status Light

Cable . . . . . . . . . . . . . . . .37

Removing and Replacing the Status Interface Card 38 Removing and Replacing the Power Distribution

Cable . . . . . . . . . . . . . . . .39

Removing and Replacing the SCSI Cable . . . .39

Installing a Split SCSI Bus Cable . . . . . .39

Installing a Single SCSI Bus Cable . . . . . .41

Securing the Internal SCSI Cables . . . . . .42

Removing and Replacing the SCSI Address Cables 44 Removing and Replacing the Audio Cable Assembly 45

Chapter 2. Maintenance Analysis

Procedures . . . . . . . . . . . . .11

Purpose of the MAPs . . . . . . . . . . .11

Flowchart of the MAPs (RS/6000 and pSeries

Systems) . . . . . . . . . . . . . . .12

Flowchart of the MAPs (AS/400 and iSeries

Systems) . . . . . . . . . . . . . . .13

Step 1 . . . . . . . . . . . . . . . .14

Step 2 . . . . . . . . . . . . . . . .14

Step 3 . . . . . . . . . . . . . . . .14

Step 4 . . . . . . . . . . . . . . . .15

Step 5 . . . . . . . . . . . . . . . .15

Step 6 . . . . . . . . . . . . . . . .16

Step 7 . . . . . . . . . . . . . . . .16

Step 8 . . . . . . . . . . . . . . . .17

Step 9 . . . . . . . . . . . . . . . .17

Step 10 . . . . . . . . . . . . . . . .18

Step 11 . . . . . . . . . . . . . . . .18

Step 12 . . . . . . . . . . . . . . . .19

Step 13 . . . . . . . . . . . . . . . .19

Step 14 . . . . . . . . . . . . . . . .19

Step 15 . . . . . . . . . . . . . . . .20

Step 16 . . . . . . . . . . . . . . . .20

Chapter 4. Servicing the DDS–4, 4mm

Tape Drive . . . . . . . . . . . . .47

Handling Static-Sensitive Devices . . . . . . .47

Manually Removing a Tape Cartridge . . . . .47

Chapter 5. Servicing the DAT 72, 4mm

Tape Drive . . . . . . . . . . . . .51

Handling Static-Sensitive Devices . . . . . . .51

Manually Removing a Tape Cartridge . . . . .51

Chapter 6. Servicing the VXA

Technology Tape Drive . . . . . . . .55

Handling Static-Sensitive Devices . . . . . . .55

Manually Removing a Tape Cartridge . . . . .55

Chapter 7. Servicing the SLR60 or

SLR100 Tape Drive . . . . . . . . .59

Handling Static-Sensitive Devices . . . . . . .59

Manually Removing a Tape Cartridge . . . . .59

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Chapter 8. Servicing the DVD-RAM

Drive . . . . . . . . . . . . . . .61

Handling Static-Sensitive Devices . . . . . . .61

Manually Removing a DVD Disc from the Drive . .62

Chapter 9. Servicing the DVD-ROM

Drive . . . . . . . . . . . . . . .63

Handling Static-Sensitive Devices . . . . . . .63

Manually Removing a DVD Disc from the Drive . .64

Chapter 10. Parts Diagram and Parts

List . . . . . . . . . . . . . . . .65

How To Use This Parts List . . . . . . . . .65

Example of Parts Listing . . . . . . . . .65

Assembly 1: Parts Diagram . . . . . . . . .66

Appendix A. Power Cables . . . . . .69

Appendix B. Safety Inspection

Procedures . . . . . . . . . . . . .71

7212 Storage Device Enclosure Service Guide

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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

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.

license inquiries regarding double-byte (DBCS) information, contact the IBM

For Intellectual Property Department in your country or send inquiries, in writing, to:

World Trade Asia Corporation

IBM Licensing 2-31 Roppongi 3-chome, Minato-ku Tokyo 106-0032, Japan

following paragraph does not apply to the United Kingdom or any other

The 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

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 pro0vided 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.

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

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or in

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.

This information contains examples of data and reports used in daily business operations. To illustrate them as completely as possible, the examples include the names of individuals, companies, brands, and products. All of these names are fictitious and any similarity to the names and addresses used by an actual business enterprise is entirely coincidental.

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

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

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

prevent a possible electrical shock from touching two surfaces with

To different electrical grounds, use one hand, when possible, to connect or disconnect signal cables. (RSFTD004)

DANGER

An electrical outlet that is not correctly wired could place hazardous voltage

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)

7212 Storage Device Enclosure Service Guide

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to or

DANGER

prevent a possible electrical shock when adding or removing any devices

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

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.

CAUTION: Ensure that all rack-mounted units are fastened in the rack frame. Do not extend

exchange any rack-mounted units when the stabilizer is not installed.

(RSFTC222)

CAUTION: When the unit is extended, its weight can turn over a rack that is not steady. Before you pull the unit out of the rack, ensure that a rack stabilizer is attached

the bottom front of the rack.

not pull out more than one unit at a time. The rack can turn over if you pull

out more than one unit at a time. (RSFTC224)

Attention Notices

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

Notices

vii

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discarded according to local regulations or recycled where facilities exist. This book contains specific information on each battery type where applicable.

Battery Return Program

the United States, IBM has established a collection process for reuse, recycling,

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:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which

the receiver is connected. Consult an IBM authorized dealer or service representative for help.

Properly 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.

shielded and grounded cables and connectors must be used in order to

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.

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7212 Storage Device Enclosure Service Guide

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Responsible Party:

International Business Machines Corporation New Orchard Road Armonk, NY 10504

Telephone: 1-919-543-2193

Industry Canada Compliance Statement

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

Avis de conformité à la 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

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

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

used in any environment including residential areas.

Notices

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Trademarks

The following terms are trademarks of International Business Machines Corporation in the United States, or other countries, or both:

AIX Application System/400 AS/400

(Stylized) eServer IBM iSeries Operating System/400 OS/400 pSeries RISC System/6000 RS/6000 400

Other company, product, and service names may be the trademarks or service marks of others.

7212 Storage Device Enclosure Service Guide

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About This Guide

This guide describes how to service the 7212 Model 102 Storage Device Enclosure.

contains the following chapters:

Chapter 1, “General Information,” describes the 7212 Storage Enclosure, gives the system requirement, discusses SCSI bus cables, and lists hardware specifications.

Chapter 2, “Maintenance Analysis Procedures,” provides the maintenance analysis procedures (MAPs) required to service the 7212 Model 102 Storage Device Enclosure.

Chapter 3, “Removal and Replacement Procedures,” provides the removal and replacement procedures required to service the 7212 Model 102 Storage Device Enclosure.

Chapter 4, “Servicing the DDS–4, 4mm Tape Drive,” describes procedures to follow when a problem is detected with an installed 4mm tape drive feature.

Chapter 5, “Servicing the DAT 72, 4mm Tape Drive,” describes procedures to follow when a problem is detected with an installed DAT 72 tape drive feature.

Chapter 6, “Servicing the VXA Technology Tape Drive,” describes procedures to follow when a problem is detected with an installed 4mm tape drive feature.

Chapter 7, “Servicing the SLR60 or SLR100 Tape Drive,” describes procedures to follow when a problem is detected with an installed SLR tape drive feature.

Chapter 9, “Servicing the DVD–RAM Drive,” describes procedures to follow when

problem is detected with an installed DVD-RAM drive feature.

Chapter 10, “Servicing the DVD–ROM Drive,” describes procedures to follow when a problem is detected with an installed DVD-ROM drive feature.

Chapter 11, “Parts Diagram and Parts List,” provides the parts diagram and parts list required to service the 7212 Model 102 Storage Device Enclosure.

Appendix A, “Power Cables,” provides power cable information for different countries.

Appendix B, “Safety Inspection Procedures,” provides procedures to identify unsafe conditions when servicing the 7212 Storage Enclosure.

Store this guide with your system manuals.

Related Publications

7212 Model 102 Storage Device Enclosure Setup and Operator Guide, SA41-0054, provides information about installing and operating the 7212 Storage Enclosure.

IBM Externally Attached Devices Safety Information SA26-2004, provides

translations of danger and caution notices.

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v If

–

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.

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.

you prefer to send comments by FAX, use either of the following numbers:

United States, Canada, and Puerto Rico: 1-800-937-3430 Other countries: 1-507-253-5192

you prefer to send comments electronically, use the following e-mail address:

RCHCLERK@us.ibm.com

sure to include the following:

The name of the book. The publication number of the book. The page number or topic to which your comment applies.

xii

7212 Storage Device Enclosure Service Guide

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in 1

is a

Chapter 1. General Information

The 7212 Model 102 Storage Device Enclosure is an external enclosure that provides convenient storage expansion capabilities for select IBM eServer, pSeries, and RS/6000 computer systems. The 7212 Storage Enclosure is designed to mount

EIA Unit (1.75″) of a standard 19-inch rack using an optional rack mount hardware feature kit, or be configured for desktop mounting. The design of the 7212 Storage Enclosure allows for easy customer setup and installation. The 7212 Storage Enclosure has two bays that can accommodate any two of the following storage device features:

DDS-4, 4mm tape drive DAT 72, 4mm tape drive VXA technology tape drive DVD-RAM drive DVD-ROM drive Bay Blank (to be used to cover an empty bay when only one drive is installed in

the 7212 Storage Enclosure)

Figure 1 shows the 7212 Storage Enclosure with a DDS-4 4mm tape drive installed

Bay A and a DVD-RAM drive installed in Bay B.

7212

RBBTW504-0

BAY A

BAY B

Figure 1. Front view of the 7212 Storage Enclosure

The 7212 Storage Enclosure has the following components on the front of the unit:

Status Lights

The following status lights are located on the left front of the enclosure:

The Power-on light 1 is a green symbol

that illuminated when the 7212 Storage Enclosure is powered on and no fault condition exists for the enclosure.

The fault light 2 is an amber symbol

that is illuminated when there

fault condition with the 7212 Storage Enclosure cooling fans.

Power

Switch

Bay A Bay A, on the left front of the 7212 Storage Enclosure (see Figure 1), can

The power switch 3 is a push button switch that enables the power to be turned on or off. Push and release the button to toggle power to the 7212 Storage Enclosure on and off.

accommodate any one of the four storage devices or a bay blank.

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If a

Bay B Bay B, on the right front of the 7212 Storage Enclosure (see Figure 1 on

page 1), can accommodate any one of the four storage devices or a bay blank.

The rear of the 7212 Storage Enclosure has the following components:

Figure 2. Rear view of the 7210 DVD-RAM Drive

SCSI Address Switches

The Bay A 2 and Bay B 1 SCSI address switches are used to identify the installed storage devices to the host system.

Note: The SCSI address switches are supplied as part of the device feature

kits since the various supported devices each have unique requirements for the address switches. Therefore if no drive is installed in a device bay, then no SCSI address switch is installed for that bay.

Audio

Jack Connectors

DVD-ROM or DVD-RAM drive is installed in Bay B, the audio jack

connectors 3 can be used to attach the drive to a stereo amplifier.

RBBTV542-0

Note:

The audio jack connectors are supplied as part of the device feature kits, since the various supported devices each have unique requirements for the audio jack connectors. The audio jack connectors are supplied only with the DVD-ROM Drive and the DVD-RAM Drive feature kits. Audio jack connectors can only be used for a DVD-ROM drive or DVD-RAM drive installed in device bay B (see Figure 1 on page 1). If a DVD-ROM drive or DVD-RAM drive is not installed in device bay B, no audio jack connectors are installed in the 7212 Storage Enclosure.

Cooling Fans

The 7212 Storage Enclosure utilizes two internal cooling fans (4 and 6)

regulate the internal temperature of the enclosure. Air exits the 7212

Storage Enclosure at the two cooling fan locations.

Note:

the cooling fan exits at the rear of the enclosure and the air inlet holes at the front of the enclosure have sufficient clearance to ensure airflow.

7212 Storage Device Enclosure Service Guide

ensure proper operation, place the 7212 Storage Enclosure so that

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SCSI Bus Connectors

The 7212 Storage Enclosure provides two, 68 pin, rear mounted, SCSI bus connectors 5 for attaching the 7212 Storage Enclosure to the host SCSI bus. These two external SCSI connectors represent the two ends of the internal SCSI bus cables. The internal SCSI bus cable can be configured to support either a single SCSI bus with one host system or with a split SCSI bus allowing SCSI connections to two hosts. Devices installed in the two enclosure device bays are attached to the internal SCSI bus cables so that the installed devices can be on a single or split SCSI bus.

Note: The SCSI interface mode (Low Voltage Differential or Single Ended)

that the 7212 Storage Enclosure will operate in, is dependent on the type of drives installed in the 7212 Storage Enclosure and the host system SCSI adapter type.

Signal USB Port

Fault

The rear of the 7212 Storage Enclosure has a Fault Signal USB Series B Port 7. This port is provided for installations that have provisions for remote fault monitoring of devices. If the 7212 Storage Enclosure experiences a fault condition (power loss or fan failure) the Pin 2 signal of the USB port will go from a high state to a low state.

Power

Security Clip Hole

System Requirement

The following sections describe the host system requirements for the 7212 Model 102 Storage Enclosure:

Notes:

The USB port pin 2 is an open collector and must be connected to a monitoring receiver that is active for the port to have a valid output signal.

Pin 2 signal voltage is dependent on the electrical design of the monitoring receiver.

Pin 4 is ground. Pins 1 and 3 are not connected.

Cable Connector

The 7212 Storage Enclosure receives power through a cable connected to the power cable connector 8.

The 7212 Storage Enclosure can be secured to a rack or other stationary object using a security cable and clips that are inserted into the security clip hole 9 and then attached to a secure object. Contact your IBM marketing representative or business partner to purchase a security cable.

RS/6000 and pSeries Systems

The 7210 Model 025 DVD-RAM Drive requires a host system platform with an AIX operating system at level 4.3.3 with update CD LCD4-0995-14 or AIX level 5.1 with update CD LCD4-1103-01 or higher.

For a list of supported processors and adapters, contact your IBM marketing representative or business partner.

Chapter 1. General Information

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No 10 m

No No 1

AS/400 and iSeries Systems

The 7212 Storage Enclosure requires only a supported AS/400 or iSeries system processor with an OS/400 operating system at level V5R1 (or higher) and a PCI Magnetic Media Controller (FC 2718 or FC 2768) or a PCI-X ULTRA TAPE CONTROLLER (FC 5702) or PCI-X TAPE/DASD CONTROLLER (FC 5705). See the order configurator information for the correct controller to be used for your host system model.

For a list of supported processors and adapters, contact your IBM marketing representative or business partner.

SCSI Bus Cables

The following table shows the various SCSI cable feature codes that can be ordered depending on the host system adapter to which the product will be attached.

Table 1. SCSI Cable Features for pSeries or RS/6000

pSeries & RS/6000 Adapter Feature

6203, 6205, Integrated Ultra2 SCSI Adapter, or Integrated Ultra3 SCSI Adapter (LVD/SE) or 5703, 5710, 5711, 5712 PCI-X Adapter

6206 Ultra SCSI Adapter (SE)

configuration.

SCSI Cable Description

Length

0.5 m

1.5 m

2.5 m

4.5 m

Connectors MES Feature

VHDCI/HD68 5600/9765

VHDCI/HD68 5601/9761

VHDCI/HD68 5602/9762

VHDCI/HD68 5604/9764

VHDCI/HD68 5610/9760

0.5 m

0.7 m

1.5 m

2.5 m

5.0 m

HD68/HD68 5303/9733 HD68/HD68 5301/9751 HD68/HD68 5300/9750 HD68/HD68 5302/9752 HD68/HD68 5305/9755

Cable

SCSI Cable Application

Adapter to

7212-102

7212-102 to

2nd Device

Yes

Yes Yes Yes Yes

Use Table 3 on page 6 to determine the maximum SCSI cable length per SCSI bus

Yes

Yes Yes

The SCSI Terminator feature for all 7212 cable configurations is 5097.

Attaching a second device to the SCSI bus after the 7212 Storage enclosure is only

supported when the internal SCSI cable is configured with a single SCSI bus.

Note: For more detailed descriptions of these cables, contact your IBM marketing

representative or business partner.

7212 Storage Device Enclosure Service Guide

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No 1

Table 2. SCSI Cable Features for iSeries or AS/400

iSeries & AS/400

SCSI Cable Description

Length

Connectors MES Feature

Cable

SCSI Cable Application

Adapter to

7212-102

7212-102 to

2nd Device Adapter Feature

2718, 2768

1.5 m

HD68/HD68 5300/9750

Yes

Yes Magnetic Media

2.5 m

HD68/HD68 5302/9752

Yes

Controller 5702, 5703,

5705, 5710, 5711, 5712, 5715 PCI Adapters

0.5 m

1.5 m

2.5 m

4.5 m

VHDCI/HD68 5600/9765 VHDCI/HD68 5601/9761 VHDCI/HD68 5602/9762 VHDCI/HD68 5604/9764

10.0 m VHDCI/HD68 5610/9760

Yes Yes Yes Yes Yes

Yes

Use Table 4 on page 7 to determine the maximum SCSI cable length per SCSI bus

configuration.

The SCSI Terminator feature for all 7212 cable configurations is 5097.

Attaching a second device to the SCSI bus after the 7212 Storage enclosure is only

supported when the internal SCSI cable is configured with a single SCSI bus.

Note: For more detailed descriptions of these cables, contact your IBM marketing

representative or business partner.

Chapter 1. General Information

Page 20

NA 9 m 9 m 10 m 10 m

9 m 9 m 9 m 10 m 10 m

10 m 10 m 10 m 10 m 10 m

10 m 10 m

NA 10 m 10 m 10 m 10 m

10 m 10 m 10 m 10 m 10 m

10 m 10 m 10 m 10 m 10 m 1

Table 3 details the maximum total length external SCSI cable for each configuration supported on the 7212 Storage Enclosure connected to an RS/6000 or pSeries host.

Table 3. Maximum SCSI Cable Lengths per Configuration for RS/6000 or pSeries

pSeries or RS/6000 SCSI Bus Configuration

6206 Ultra SCSI adapter with one 7212 Enclosure per adapter port

6203, 6205, Integrated Ultra2 SCSI, or Integrated Ultra3 SCSI adapter or 5703, 5710, 5711, 5712 PCI-X adapter with one 7212 Enclosure per adapter port

Device in 7212 Bay A

Blank DDS-4 or

DAT 72 VXA SLR60 or

SLR100 DVD-RAM

DVD-ROM Blank DDS-4 or

DAT 72 VXA SLR60 or

SLR1000 DVD-RAM

Blank

1.5 m

10.5 m

1.5 m

DDS-4 or DAT 72

1.5 m

10.5 m

1.5 m

Device in 7212 Bay B

VXA

1.5 m

10.5 m

1.5 m

SLR60 or SLR100

1.5 m

10.5 m

1.5 m

DVD-RAM or DVD-ROM

1.5 m

10.5 m

1.5 m

DVD-ROM

6203, 6205, Integrated Ultra2 SCSI, or Integrated Ultra3 SCSI adapter or 5703, 5710, 5711, 5712 PCI-X adapter with two 7212 Enclosures per adapter port

Blank DDS-4 or

DAT 72 VXA SLR60 or

SLR100 DVD-RAM

Not Supported

Not

Supported

Not

Supported

DVD-ROM

6203, 6205, Integrated Ultra2 SCSI, or Integrated Ultra3 SCSI adapter or 5703, 5710, 5711, 5712 PCI-X adapter with one 7212 Enclosure and one LVD Single Device Bridge Box

Blank DDS-4 or

DAT 72 VXA SLR60 or

SLR100 DVD-RAM

per adapter port

DVD-ROM

Attaching a second device to the SCSI bus after the 7212 Storage enclosure is only supported when the internal

SCSI cable is configured with a single SCSI bus.

7212 Storage Device Enclosure Service Guide

Page 21

Table 4 details the maximum total length external SCSI cable for each configuration supported on the 7212 Storage Enclosure connected to an AS/400 or iSeries host.

Table 4. Maximum SCSI Cable Lengths per Configuration for AS/400 or iSeries

iSeries or AS/400 SCSI Bus Configuration

2718, 2768 Magnetic Media Controller with one 7212 Enclosure per adapter port

6203, 6205, Integrated Ultra2 SCSI, or Integrated Ultra3 SCSI adapter or 5702, 5703, 5710, 5711, 5712, 5715 PCIX adapter with one 7212 Enclosure per adapter port

6203, 6205, Integrated Ultra2 SCSI, or Integrated Ultra3 SCSI adapter or 5703, 5710, 5711, 5712, 5715 PCIX adapter with two 7212 Enclosures per adapter port

6203, 6205, Integrated Ultra2 SCSI, or Integrated Ultra3 SCSI adapter with one 7212 Enclosure and one LVD Single Device Bridge Box per adapter port

Attaching a second device to the SCSI bus after the 7212 Storage enclosure is only supported when the internal

SCSI cable is configured with a single SCSI bus.

Device in 7212 Bay A

Blank VXA SLR60 or

SLR100 DVD-RAM or

DVD-ROM Blank

VXA SLR60 or

SLR100 DVD-RAM or

DVD-ROM Blank VXA SLR60 or

SLR100 DVD-RAM or

DVD-ROM Blank

VXA SLR60 or

SLR100 DVD-RAM or

DVD-ROM

Blank

2.5 m

10.0 m

Device in 7212 Bay B

VXA

2.5 m

10.0 m

SLR60 or SLR100

2.5 m

10.0 m

DVD-RAM or DVD-ROM

2.5 m

10.0 m

Chapter 1. General Information

Page 22

44 mm

V AC

50 to 60

16 to

10 to

20 to

8 to

Specifications

Table 5. Specifications for the 7212 Model 102 Storage Device Enclosure

Physical Specifications

Width Depth Height Weight

428 mm (16.85 in.) 483 mm (19.0 in.)

(1.72 in.)

8.3 kg (18.2 lb)

Power Specifications

kVA

0.047 @ 120 V AC

100 to 125, or 200 to 240 Hertz Btu Maximum (watts) Power Factor Altitude

205 Btu/hr (60 watts) @ 240 V AC

0.8 to 0.9

2135 m (7000 ft)

Performance Specifications

Dependant on device, media type, and SCSI bus configuration.

Recommended Environment

Environmental Factor

Temperature

Operating

32°C

Non-operating

52°C

(60 to 90°F)

Relative Humidity

80%

(noncondensing) Maximum Wet Bulb

23°C

(73°F)

Weight with two DDS-4, 4mm tape drives installed and no rack slides.

(50 to 126°F)

80%

23°C

(73°F)

7212 Storage Device Enclosure Service Guide

Page 23

Media Drive Environment and Use

IBM’s goal is to provide you with a product that you can configure and use reliably. Removable media drives require specific maintenance and environmental conditions to operate well over time. Using high quality, data grade media, handling and storing this media properly, operating the removable media drive in

clean environment and keeping the removable media drive properly cleaned can

help you to avoid problems with your IBM product.

Media Grades

IBM may use two different grades of media. At the discretion of IBM, Program Transmittal Fixes (PTFs) may be supplied on media that is designed to be written

only once and read from several times. This media is not designed to be used as

backup medium.

IBM also sells media designed to be used for storage. IBM supports the media that

sell. If IBM service personnel analysis indicates a problem with non-IBM media

may be necessary for the customer to replace the media.

Media Handling and Storage

Most media is supplied in a sealed cartridge. It is provided this way so that the media will remain in a clean environment. Opening the cartridge allows dirt and airborne particles to enter and then become a source of contamination. The cartridge should only be opened by the drive and not an operator. The media also

held under proper tension inside the cartridge. If the cartridge is dropped, this tension will be relaxed. Inserting a dropped cartridge into a drive can cause incorrect loading and result in a jam. This will ruin the media and can cause physical damage if the cartridge is not removed properly.

When the media is stored, it must be replaced in the protective containers and stored on the end. The storage area must be clean, dry, normal room temperature and away from any magnetic fields.

Environmental Issues

Removable media drives are designed to operate in a clean environment. Problem factors are dirt, dust, fibers and airborne particles. Airborne particles are the most difficult to address. When media is installed in the drive, the clearance between the heads and the media is measured in microns. Particles can damage the media or the head if they come in contact with either. Customers are responsible to provide

clean operating environment for the drive and system.

Drive Cleaning

matter how clean the environment, debris may build up on the heads of any drive. Over time, this builds up and causes errors in reading and writing. Customers are responsible to clean the drive in accordance with the cleaning information provided with the drive.

IBM only supports the use of IBM cleaning cartridges for IBM drives.

Chapter 1. General Information

Page 24

If a

SCSI Hardware Issues

SCSI bus cables and terminators may affect drive performance. IBM cables and terminators are designed specifically to keep the SCSI bus as free of noise as possible. Use of non-IBM cables or terminators may adversely affect the SCSI bus performance. If IBM service personnel analysis indicates a problem with non-IBM cables, it may be necessary for the customer to replace them with the appropriate IBM cables.

Microcode Updates

IBM constantly works to provide the best possible products. To make certain that the drives work their very best, IBM occasionally releases changed microcode for the drives. When a microcode change is developed, IBM makes it available to you through the service organization or by electronic delivery.

For RS/6000 and pSeries Host Systems

Microcode changes are available from the following IBM Web site:

http://techsupport.services.ibm.com/server/mdownload

Microcode can be installed by your IBM authorized service personnel or your system administrator.

For AS/400 and iSeries Host Systems

AS/400 and iSeries system technical support is available from the following IBM Web site:

http://www-912.ibm.com/

Microcode can be installed by your IBM authorized service personnel or your system administrator.

Summary

Your drive must be installed in the cleanest possible environment. Additionally, IBM drives require high quality, data grade media and cleaning on a regular basis. Media must also be stored and handled properly. Improper use, storage or handling of drives or media may void your IBM warranty or service agreement

defective drive under the terms and conditions of the IBM warranty or service agreement. It is our objective to work with you to identify the cause of any drive problems and provide a solution.

drive stops functioning due to a component failure during the drive warranty

maintenance time, IBM will replace the drive unit. IBM will replace any

7212 Storage Device Enclosure Service Guide

Page 25

If a

Chapter 2. Maintenance Analysis Procedures

DANGER

prevent a possible electrical shock from touching two surfaces with

To different electrical grounds, use one hand, when possible, to connect or disconnect signal cables. (RSFTD004)

DANGER

electrical outlet that is not correctly wired could place hazardous voltage

CAUTION: Ensure that all rack-mounted units are fastened in the rack frame. Do not extend

exchange any rack-mounted units when the stabilizer is not installed.

(RSFTC222)

CAUTION: When the unit is extended, its weight can turn over a rack that is not steady. Before you pull the unit out of the rack, ensure that a rack stabilizer is attached

the bottom front of the rack.

not pull out more than one unit at a time. The rack can turn over if you pull

out more than one unit at a time. (RSFTC224)

Purpose of the MAPs

Maintenance analysis procedures (MAPs) are used to check the:

Power cable Power supply Terminator

problem is detected, the procedure isolates the problem to the failing field

replaceable unit (FRU).

SCSI address SCSI cable Configuration

Drive Fan

For instructions about removing or replacing a FRU, refer to Chapter 3, “Removal and Replacement Procedures,” on page 27

The following flowchart provides a graphic to be used as a guide to the MAP. For detailed instructions on how to perform each procedure safely and correctly, refer

the steps in this chapter.

Page 26

Flowchart of the MAPs (RS/6000 and pSeries Systems)

Replace power

switch and

return to Step 1

Replace power

supply and

return to Step 1

Replace status

interface card and

return to Step 1

Step 1

Does the

7212-102

power up?

Step 2

Electrical outlet

OK?

Contact service

yes

Step 3

Power cable

OK?

yes

Exchange

power cable

Shut the system down

and power off

Remove cover and

prepare unit

Step 4

Any visual

problem?

Fix problem and

Step 5

Power Switch

OK?

yes

Step 6

Power Supply

OK?

yes

Step 7

Status interface

card OK?

yes

Replace the LED cable

and return to Step 1

yes

personnel

yes

return to Step 1

Step 8

Are either of the

fans bad?

Step 9

Did drive

complete

POST?

Shut the system down

and power off

Remove cover and

prepare unit

Step 10

Any visual

problem?

Step 11

Power distribution

cable OK?

Step 12

Drives power

up normal?

Replace failing

drive and

return to Step 1

Fail

Replace FRU/contact

service personnel

yes

Replace

fans and

return to Step 1

yes

Fix problem and

return to Step 1

Replace power

distribution cable and

yes

return to Step 1

yes

Step 20

Run AIX

diagnostics

Problem fixed

yes

Pass

Step 13

Media

OK?

yes

and return to Step 1

Shut the system down

and power off

Remove cover and

prepare unit

Step 14

Any visual

problem?

Fix problem and

return to Step 1

Step 15

SCSI Address

OK?

yes

Step 16

Internal SCSI

cable OK?

Replace SCSI

yes

return to Step 1

Step 17

External SCSI

cable OK?

Replace SCSI

yes

return to Step 1

Step 18

Terminator

OK?

yes

terminator and return to Step 1

Step 19

Run Configuration

Manager

Replace media

yes

Fix SCSI

address and

return to Step 1

cable and

Replace

RBBTW521-0

Figure 3. RS/6000 and pSeries Systems Flowchart of the Maintenance Analysis Procedures (MAPs)

7212 Storage Device Enclosure Service Guide

Page 27

Flowchart of the MAPs (AS/400 and iSeries Systems)

Replace power

switch and

return to Step 1

Replace power

supply and

return to Step 1

Replace status

interface card and

return to Step 1

Step 1

Does the

7212-102

power up?

Step 2

Electrical outlet

OK?

Contact service

yes

Step 3

Power cable

OK?

yes

Exchange

power cable

Shut the system down

and power off

Remove cover and

prepare unit

Step 4

Any visual

problem?

Fix problem and

Step 5

Power Switch

OK?

yes

Step 6

Power Supply

OK?

yes

Step 7

Status interface

card OK?

yes

Replace the LED cable

and return to Step 1

Retry and

replace

on failure

yes

personnel

yes

return to Step 1

Are either of the

Shut the system down

Remove cover and

Step 24

Did the Verify

test pass?

yes

Problem fixed

Step 8

fans bad?

Step 9 Did drive complete

POST?

and power off

prepare unit

Step 10

Any visual

problem?

Step 11

Power distribution

cable OK?

distribution cable and

yes

Step 12

Drives power

up normal?

Replace failing

drive and

return to Step 1

fail

yes

Replace

fans and

return to Step 1

yes

Fix problem and

return to Step 1

Replace power

return to Step 1

yes

Step 23

Clean the

drives and

retry

pass

Problem

fixed

Shut the system down

and power off

Remove cover and

prepare unit

Any visual

SCSI Address

Internal SCSI

cable OK?

External SCSI

cable OK?

Terminator

Are the devices

configured to

Are the devices

communicating with

yes

the system?

Step 13

Media

OK?

yes

Step 14

problem?

Step 15

OK?

yes

Step 16

yes

Step 17

yes

Step 18

OK?

yes

Step 21

system?

Step 22

RBBTW528-0

Replace media

and return to Step 1

yes

Fix problem and

return to Step 1

Fix SCSI

address and

return to Step 1

Replace SCSI

cable and

return to Step 1

Replace SCSI

cable and

return to Step 1

Replace terminator and return to Step 1

yes

Go to

Step 20

Contact support

personnel

Figure 4. AS/400 and iSeries Systems Flowchart of the Maintenance Analysis Procedures (MAPs)

Chapter 2. Maintenance Analysis Procedures

Page 28

go to

Go to

Step 1

DANGER

electrical outlet that is not correctly wired could place hazardous voltage

This step verifies whether the power is operating properly.

Make sure that the 7212 Storage Enclosure power cable is plugged into an electrical outlet.

Press the Power On button on the 7212 Storage Enclosure. Check the state of the power On and Fault lights on the front of the 7212

Storage Enclosure.

Table 6. Status Light States

Power-On Light Status

Off

Fault Light Status

Off

Service Action

Repeat Step 1 several times. If neither light illuminates, then

Step 2. This indicates normal operation. Go to Step 9. This indicates that there may be a fan failure. Go to Step 8.

Step 2

Step 3

This step tests the voltage at the electrical outlet.

Press the 7212 Storage Enclosure power switch to turn off the power. Unplug the 7212 Storage Enclosure power cable from the electrical outlet and

from the 7212 Storage Enclosure. Measure the voltage at the electrical outlet.

the voltage from the electrical outlet correct?

Contact your service personnel for further instructions.

YES

Step 3.

This step determines whether the power cable is functional.

Make sure that all of the conductors in the power cable have continuity, and that there are no short circuits.

Does the power cable have continuity and are there no short circuits?

Replace the power cable, then go to Step 1.

YES

Step 4.

7212 Storage Device Enclosure Service Guide

Page 29

1. Do a

On or In

Step 4

This step performs a visual and physical check in an attempt top fix the problem.

controlled system shutdown (refer to the instructions in the 7212 Model

102 Storage Device Enclosure Setup and Operator Guide). Ensure that the power to the host is off. Turn off the power to the 7212 Storage Enclosure. Unplug the 7212 Storage Enclosure from the electrical source. Perform the cover removal procedure. Refer to “Removing and Replacing the

Cover” on page 28. Visually inspect all of the internal components in the enclosure. Look for any

signs of wear, damage, contamination, or excessive heat. Physically check each cable connection and ensure all cables are fully seated

and secured.

Are their any signs of damage, wear, or loose cables?

Step 5

Plug the enclosure into an electrical source and press the power On switch to determine if the connection inspection fixed the problem.

the enclosure does not power on, go to Step 5. If the enclosure powers on and appears to run normally, reassemble the enclosure, and then return to Step 1.

YES

Replace the damaged component or reseat the cable, reassemble the enclosure and then return to Step 1.

This step checks the Power On/Off switch to determine if this is the source of the problem.

Unplug the 7212 Storage Enclosure from the electrical source. Press the power switch on the enclosure to determine whether it latches in the

position.

Unplug the power switch cable from the power supply and test the electrical continuity of the cable pins, as illustrated in Table 7.

Table 7. Power Switch Cable Pin Continuity

Power button position

Off (out)

(in)

Continuity between cable pins 1 and 2

Open Circuit Continuity

Continuity between cable pins 3 and 4

Open Circuit Continuity

Continuity between other cable pin pairs

Open Circuit Open Circuit

Does the power switch latch in the On position and support the continuity as shown in Table 7?

YES

Adjust the power switch bracket to ensure the button moves freely

the chassis hole. If the power button does not latch in the On position or if the cable does not have continuity, replace the power switch assembly (see “Removing and Replacing the Power Switch Assembly” on page 36), reassemble the enclosure, and then return

Step 1. Reassemble the power switch assembly and then go to Step 6.

Chapter 2. Maintenance Analysis Procedures

Page 30

7. On

Step 6

This step checks the power supply voltage levels as the possible source of the problem.

Press the power switch to turn off the power to the 7212 Storage Enclosure. Unplug the 7212 Storage Enclosure from the electrical outlet. Disconnect the power supply connector (J1) from the internal power

distribution cable. Connect the power cable to both the 7212 Storage Enclosure and to the

electrical outlet. Press the power switch to turn on the power. Ensure the fan is operating on the power supply.

the power supply connector J1 (see Figure 5), check the following:

The +12V signal falls between a minimum of +11.5 volts and a maximum of +12.6 volts

The +5V signal falls between a minimum of +4.8 volts and a maximum of +5.25 volts

Step 7

Figure 5. Power Supply Connector J1

Are the voltages good, and is the power supply fan operating?

Replace the power supply (see “Removing and Replacing the Power Supply” on page 33), reassemble the enclosure, and then return to Step 1.

YES

Reconnect the power supply to the internal power distribution cable and then go to Step 7.

This step checks the LED cable as the possible source of the problem.

Press the power switch to turn off the power to the 7212 Storage Enclosure. Unplug the 7212 Storage Enclosure from the electrical outlet. Disconnect the LED cable from the status interface card. Connect the power cable to both the 7212 Storage Enclosure and to the

electrical outlet. Press the power switch to turn on the power to the enclosure. Check the voltage on the status interface card J1 connector pins with the 7212

cooling fans set to the states listed in Table 8 on page 17. This table lists the front panel status light states that would occur if the LED cable is plugged into the J1 connector.

The fans can be turned to an OFF state by disconnecting the fan cable from

Note:

the status interface board.

7212 Storage Device Enclosure Service Guide

Page 31

On On

0v On

NO Go to

NO If

Go to

Table 8. Status Interface Card Voltages

voltage

between

pins 1 and 2

voltage

between pins

and 4

4.8v < x <

7212

Right-side

cooling fan

7212 Left-side

cooling fan

7212 front

panel power

light

Green

7212 front

panel fault

light

Off

5.4v

4.8v < x <

Off

Yellow

5.4v

4.8v < x <

Off

Yellow

5.4v

4.8v < x <

Off

Yellow

5.4v

the voltages measured on the status interface board J1 connector comply

with Table 8?

Replace the status interface card (see “Removing and Replacing the Power Supply” on page 33), reassemble the enclosure, and then return to Step 1.

Step 8

Step 9

YES

Replace the LED cable, reassemble the enclosure, and then return

Step 1.

This step examines the cooling fan as the possible source of the problem.

Press the power switch to turn on the power to the 7212 Storage Enclosure. Observe the fault light on the front of the enclosure. Observe the cooling fans on the rear of the enclosure. Ensure the fans are

blowing air out of the enclosure and that they are operating at a constant speed, not making abnormal noises.

the fault light come on and stay on, or are either of the fans operating

Does abnormally?

Step 9.

YES

Replace the failing cooling fan (see “Removing and Replacing the Cooling Fans” on page 35), and then return to Step 1.

This step examines the drive as the possible source of the problem.

Press the power switch to turn on the power to the 7212 Storage Enclosure. Observe each of the drive status indicator lights during & after POST.

the drives power up and complete the Power On Self Test (POST) normally?

YES

the drives do not power up, go to Step 10. If the drives power up, but with status lights reporting an error condition follow the recommended drive service action as appropriate (refer to the drive descriptive chapters in the 7212 Model 102 Storage Device Enclosure Setup and Operator Guide), and then go to Step 1.

Step 13.

Chapter 2. Maintenance Analysis Procedures

Page 32

1. Do a

7. On

Step 10

This step performs a visual and physical check in an attempt top fix the problem.

controlled system shutdown (refer to the instructions in the 7212 Model

Cover” on page 28. Visually inspect all of the internal components in the enclosure. Look for any

signs of wear, damage, contamination, or excessive heat. Physically check each cable connection and ensure all cables are fully seated

and secured.

Are their any signs of damage, wear, or loose cables?

Step 11

Plug the enclosure into an electrical source and press the power On switch to determine if the connection inspection fixed the problem.

the enclosure does not power up normally, go to Step 11. If the enclosure powers on and appears to run normally, reassemble the enclosure, and then return to Step 1.

YES

Replace the damaged component or reseat the cable, reassemble the enclosure and then return to Step 1.

This step checks the power distribution cable as the possible source of the problem.

Press the power switch to turn off the power to the 7212 Storage Enclosure. Disconnect the power distribution cable from the device installed in Bay A. Disconnect the power distribution cable from the device installed in Bay B. Disconnect the power distribution cable from the status interface card. Connect the power cable to both the 7212 Storage Enclosure and to the

electrical outlet. Press the power switch to turn on the power.

each of the three device power distribution cable connectors (see Figure 6),

check the following:

The +12V signal falls between a minimum of +11.5 volts and a maximum of +12.6 volts

The +5V signal falls between a minimum of +4.8 volts and a maximum of +5.25 volts

Figure 6. Device Power Cable Connector

7212 Storage Device Enclosure Service Guide

Page 33

NO If

1. Do a

Are the voltages good at each connector?

Replace the power distribution cable (see “Removing and Replacing the Power Distribution Cable” on page 39), reassemble the enclosure, and then return to Step 1.

Step 12

Step 13

YES

Reattach the power cables to the devices and then go to Step 12.

This step examines the drives as the possible source of the problem.

Press the power switch to turn off the power to the 7212 Storage Enclosure. Disconnect the power distribution cable, SCSI cable, and SCSI address cable

from the drive in Bay A. Press the power switch to turn on the power.

the drive in Bay B power up and complete the Power On Self Test (POST)

Does normally?

Turn off the power, reconnect the cables to the drive in Bay A, and then disconnect the cables from the back of the drive in Bay B. If the drive in Bay A then powers on normally, replace the drive in Bay B and then return to Step 1. If not, go to Step 15.

YES

Replace the drive in Bay A and then return to Step 1.

This step checks whether the media is the source of the problem.

Press the media unload button on the drive (refer to the drive descriptive chapters in the 7212 Model 102 Storage Device Enclosure Setup and Operator Guide).

Remove the used media. If the media fails to unload, refer to drive specific chapters (4, 5, and 6) in this manual for manual media unload procedures.

Power the 7212 Storage Enclosure off and then back on. Insert new media and then power the 7212 Storage Enclosure off and then back on.

the installed drives power up and complete the POST normally?

YES

Step 14

This step performs a visual and physical check in an attempt top fix the problem.

the drives do not power up, go to Step 11. If the drives power up, but with status lights reporting an error condition, follow the recommended drive service action (refer to the drive descriptive chapters in the 7212 Model 102 Storage Device Enclosure Setup and Operator Guide), and then go to Step 1.

Discard the used media and then go to Step 14.

controlled system shutdown (refer to the instructions in the 7212 Model

Chapter 2. Maintenance Analysis Procedures

Page 34

Go to

Perform the cover removal procedure. Refer to “Removing and Replacing the Cover” on page 28.

Visually inspect all of the internal components in the enclosure. Look for any signs of wear, damage, contamination, or excessive heat.

Physically check each cable connection and ensure all cables are fully seated and secured.

Ensure that the internal SCSI cables are connected correctly for the desired SCSI configuration (split or single SCSI bus.)

Are their any signs of damage, wear, or loose cables?

Plug the enclosure into an electrical source and press the power On switch to determine if the connection inspection fixed the problem.

the enclosure does not power up normally, go to Step 15. If the enclosure powers on and appears to run normally, reassemble the enclosure, and then return to Step 1.

Step 15

Step 16

YES

Replace the damaged component or reseat the cable, reassemble the enclosure and then return to Step 1.

This step checks that the SCSI address switch settings are correct and that the address cables are plugged into the drives correctly.

Are the SCSI addresses set correctly with the SCSI cables plugged securely and

the cable in good condition?

Replace the cable, if necessary. Set the SCSI address switch to the proper address and securely seat the cables, then return to Step 1.

set the SCSI address switch and secure the cables correctly, refer

the instructions in the 7212 Model 102 Storage Device Enclosure

Setup and Operator Guide.

YES

Step 16.

This step determines whether the internal SCSI bus cable is the source of the problem.

Press the power switch to turn off the power to the 7212 Storage Enclosure. Disconnect the internal SCSI cable from the drives. Inspect the SCSI cable and connectors for signs of damage, such as bent pins or

damaged wires. Ensure that the internal SCSI cables are connected correctly for the desired SCSI

configuration (split or single SCSI bus.)

the internal SCSI cable in good condition?

YES

7212 Storage Device Enclosure Service Guide

Replace the internal SCSI cable (see “Removing and Replacing the SCSI Cable” on page 39), reassemble the enclosure, and then return

Step 1.

Reassemble the enclosure, and then go to Step 17.

Page 35

Go to

Step 17

This step ensures that the external SCSI bus cable connection is proper.

Inspect the SCSI bus cable for damage, such as bent pins or damaged wires. Ensure that the SCSI bus cable is properly connected to both the host system and

the 7212 Storage Enclosure. Verify that the supported maximum SCSI bus length and number of devices is not exceeded. Verify that a supported host adapter is being used (see Table 1 on page 4 and Table 3 on page 6).

the SCSI bus cable properly connected to the host system and to the 7212 Storage Enclosure?

Replace the cable if it is damaged or too long. Remove any devices from SCSI bus that are not supported by the configuration. Correct any adapter problems. Plug the SCSI bus cable into both the host system and the 7212 Storage Enclosure, then go to Step 18.

Step 18

YES

Step 18.

This step ensures that the external terminator connection is proper.

Inspect the terminator for damage and ensure it has the correct part number. Ensure that the terminator is properly connected to the last device on the SCSI bus.

Note: If the enclosure is configured with a split SCSI bus, the terminators are

mounted inside the enclosure.

the terminator properly connected to the last device on the SCSI bus?

Replace the terminator if it is damaged or the wrong part number. Ensure that the terminator is properly connected to the last device

the SCSI bus, then go to Step 19.

the host system is an AS/400 or iSeries system, go to Step 21

(AS/400 or iSeries Only).

YES

Step 19.

the host system is an AS/400 or iSeries system, go to Step 21

(AS/400 or iSeries Only).

Chapter 2. Maintenance Analysis Procedures

Page 36

2. At

NO Go to

Go to

Step 19

You are here because the host system is an RS/6000 or pSeries host system.

This step verifies that the 7212 Storage Enclosure has been properly configured to the host system.

Check the configuration of the 7212 Storage Enclosure to the host system software

doing the following:

Log into the host system (AIX operating system).

Note: You must have root authority to install or remove the 7212 Storage

Enclosure from the system. To obtain root authority, see your system administrator.

the system prompt, type

lsdev -Cs scsi

and press Enter. The command lists all of the SCSI devices that are connected

the host system. Figure 7 shows an example of the screen that displays. The

screen lists:

1 2 3

Device name Device Status SCSI adapter slot number

4 5

SCSI address (begins with 7th digit) Description of the SCSI device

hdisk0 Available 00-00-0S-0,0 2.0GB SCSI Disk Drive hdisk1 Available 00-02-01-2,0 4.5GB 16 Bit SCSI Disk Drive hdisk2 Available 00-02-01-3,0 16 Bit SCSI Disk Drive rmt0 Available 00-02-01-4,0 Differential SCSI 8mm Tape Drive rmt1 Available 00-02-01-5,0 4.0 GB 4mm Tape Drive cd1 Available 00-03-01-1,0 SCSI Multimedia CD-ROM Drive cd2 Available 00-03-01-2,0 16 Bit LVD SCSI DVD-ROM Drive rmt2 Available 00-03-01-3,0 LVD SCSI 4mm Tape Drive

Figure 7. Screen Display of SCSI Devices Attached to the host system

From the list of SCSI devices, identify the 7212 Storage Enclosure drive features. These are listed as:

Differential SCSI 4mm Tape Drive SCSI 4mm Tape Drive SCSI DVD-RAM Drive

the status of the 7212 Storage Enclosure drive feature is displayed as Available, the device has successfully been configured. If the status is not displayed as Available, refer to your host system manuals.

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the 7212 Storage Enclosure properly configured to the host system?

YES

7212 Storage Device Enclosure Service Guide

Step 20. Step 20 to verify that the problem is fixed

Page 37

1. At

2. In

3. In

Step 20

This step runs the AIX diagnostics to determine the problem or to verify a fix.

Press the power switch to turn on the power. Press the load/unload button to eject any media currently loaded in the

devices. Obtain the appropriate test media for the device. Inspect the test media for

damage and debris. If the quality of the test media is questionable, replace it with new test media.

Load the test media into the drive.

For the preceding step, use only the test media; do not substitute with

Note:

other media.

Run the diagnostics on the 7212 Storage Enclosure. For instructions, refer to your AIX manuals.

all of the diagnostic routines pass?

Exchange the FRU isolated by the diagnostics and identified by the service request number.

Note:

check that the connectors are properly seated. If the drive has recently been replaced because of a similar problem, contact your service personnel.

YES

completes the MAPs for RS/6000 or pSeries host systems.

This

The problem is fixed.

Step 21 (AS/400 or iSeries Only)

You are here because the host system is an AS/400 or iSeries host system. This step verifies that the installed devices are properly configured to the host system.

the command line on the Main Menu, type

wrkcfgsts

then press Enter. The Work with Configuration Status display appears.

the Type field, type

*dev

the Configuration Description field, type

*tap

the drive is the FRU that is isolated by the diagnostics,

then press Enter twice.

Does the device that you are configuring appear under the Description column, and can you vary it on and off successfully?

Note: To determine the number of the device that you are configuring, see

″Performing the Checkout Procedure,″ in the 7212 Model 102 Storage Device

Enclosure Setup and Operator Guide

NO YES Go to Step 23.

Continue with Step 22 (AS/400 or iSeries Only).

Chapter 2. Maintenance Analysis Procedures

Page 38

1. At

2. At

3. At

4. At

5. At

6. In

7. At

9. In

Step 22 (AS/400 or iSeries Only)

This step verifies whether the installed devices can communicate with the AS/400

iSeries host system.

the command line on any AS/400 or iSeries menu, type

strsst

then press Enter.

the System Service Tools (SST) screen, type 1 (Start a service tool), then

press Enter.

the Start a Service Tool screen, type 7 (Hardware service manager), then

press Enter.

the Hardware Service Manager screen, type 2 (Logical hardware resources),

then press Enter.

the Logical Hardware Resources screen, type 1 (System bus resources), then

press Enter.

the Description column of the Logical Hardware Resources on System Bus screen, locate the input/output processor (IOP) device (the SCSI controller) to which the 7207 Tape Drive is attached. Type 6 (I/O Debug), then press Enter (refer to ″Performing the Checkout Procedure,″ in the 7212 Model 102 Storage Device Enclosure Setup and Operator Guide).

the Select IOP Debug Function screen, type 4 (IPL I/O processor), then press Enter twice. The host system performs an initial program load (IPL), refreshes its settings, and displays the message Re-IPL of IOP was successful.

After the IPL completes, press F12 to return to the Logical Hardware Resources

System Bus screen.

the Description and Type-Model fields of the Logical Hardware Resources on System Bus screen, locate the IOP storage device (the SCSI controller) to which the 7207 Tape Drive is attached. Type 9 (Resources associated with IOP), then press Enter.

The Logical Hardware Resources Associated with IOP screen displays with a list of devices that are configured to the SCSI controller. The 7207 Tape Drive and its tape controller appear in the list and display a status of Operational.

Are the 7207 tape drive and a tape controller listed under the Storage IOP column, and is their status operational?

YES Exit the System Service Tool to a command line, then continue with Step

Step 23

This step cleans the installed drives and attempts the failing operation again.

Clean the tape drive (refer to the appropriate device chapters in the 7212 Model 102 Storage Enclosure Setup and Operator Guide). Then, attempt the failing operation again.

the installed devices perform the failing operation correctly?

7212 Storage Device Enclosure Service Guide

Contact your next level of support for further instructions.

23.

Continue with Step 24.

Page 39

1. At

3. If

If no

Step 24

YES Cleaning the devices corrected the problem.

This step verifies that the installed devices can read from and write to the media properly.

the command line on any AS/400 or iSeries menu, type

vfytap

then press Enter. Follow the screen prompts.

Does the tape verification test complete successfully?

Perform the following:

Power off the tape drive and then power it back on to attempt to reset the error.

Obtain a new test cartridge and repeat Step 24.

the test fails again, replace the failing device.

YES

problem was identified, the problem may be intermittent, related to the tape quality, or relating to the environment. If a FRU was replaced or changed and no more errors occur, the problem is fixed.

completes the MAPs for the AS/400 or iSeries host system.

This

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to or

v Do

Chapter 3. Removal and Replacement Procedures

This chapter describes the procedures to follow when removing and replacing the 7212 Storage Enclosure field replaceable units (FRUs).

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

prevent a possible electrical shock when adding or removing any devices

Attention: The 7212 Storage Enclosure is a precision device that requires

reasonable care in handling to prevent data loss or permanent damage to the device. Avoid bumping or dropping the 7212 Storage Enclosure or device features. Ensure all media is removed from the device before the drive is moved.

Handling Static-Sensitive Devices

Attention: Electronic assemblies are sensitive to static electricity discharge. When

handling an electronic component, wrap it an antistatic bag to prevent damage.

Take the following precautions:

not remove the electronic component from the antistatic bag until you are

ready to install it. With the component still in its antistatic bag, touch it to the metal frame of an

electrically grounded surface. Hold the component by the frame. Avoid touching the solder joints or pins. Handle the component carefully to prevent permanent damage.

Safety Considerations

When the 7212 Storage Enclosure is installed in a rack system, special care should

taken to ensure a safe work environment is maintained. The following

information should be considered when working with a rack-installed enclosure:

Consideration should be given to the connection of the equipment to the supply circuit, so that overloading of circuits does not compromise the rack supply wiring

over-current protection. To provide the correct power connection to the rack, refer to the rating labels located on the equipment installed the rack to determine the total power requirement for the supply circuit.

not install this unit in a rack where the internal rack ambient temperatures will

exceed 40 degrees Celsius.

Page 42

Do not install this unit in a rack where the air flow is compromised.

ensure proper cooling, place the unit so that the cooling fan exits at the rear of the unit and the air inlet holes at the front of the unit have sufficient clearance to ensure airflow.

DANGER

An electrical outlet that is not correctly wired could place hazardous voltage

CAUTION: Ensure that all rack-mounted units are fastened in the rack frame. Do not extend

exchange any rack-mounted units when the stabilizer is not installed.

(RSFTC222)

CAUTION: When the unit is extended, its weight can turn over a rack that is not steady. Before you pull the unit out of the rack, ensure that a rack stabilizer is attached

the bottom front of the rack.

not pull out more than one unit at a time. The rack can turn over if you pull

out more than one unit at a time. (RSFTC224)

Removing and Replacing the Cover

Use the following procedure to prepare the 7212 Storage Enclosure for removal or installation of a storage device.

Note: Before performing this procedure, ensure that there is no activity on the

SCSI bus or operations being performed by the installed devices. Turning off the 7212 Storage Enclosure during activity on the bus could result in loss of

data. Remove any media from the installed devices. Turn off the power to the 7212 Storage Enclosure. Remove the 7212 Storage Enclosure from the host system configuration (follow

the procedure in the 7212 Model 102 Storage Device Enclosure Setup and Operator Guide).

DANGER

prevent a possible electrical shock when installing the device, ensure that

To the power cord for that device is unplugged before installing signal cables. (RSFTD204)

Unplug the 7212 Storage Enclosure power cable from the electrical outlet. Disconnect the power cable from the 7212 Storage Enclosure. Disconnect the SCSI bus (signal) cable from the 7212 Storage Enclosure. Place the 7212 Storage Enclosure on a flat work surface.

7212 Storage Device Enclosure Service Guide

Page 43

is a CD or

Remove the six screws (two on each side 1 and two on the back 2) that secure the top cover of the enclosure to the chassis. Lift the rear of the cover and slide it back and away to remove it. Set the cover and screws aside for replacement later.

Figure 8. Removing the Cover Screws

The to install the cover, reverse this procedure.

Removing a Storage Device from the Enclosure

Prepare the 7212 Storage Enclosure for device removal by following the procedure in “Removing and Replacing the Cover” on page 28.

Determine which device is to be removed from the 7212 Storage Enclosure. Note the locations of any cables that are attached to the selected device. Note the locations of the device mounting brackets (see 1 in Figure 10 on page 30) and screws.

Disconnect the power cable, SCSI cable, SCSI address cable, and (if the device

DVD) the audio cable.

Remove the two mounting screws that secure the two device mounting brackets (see 1 in Figure 9 on page 30) to the bottom of the 7212 Storage Enclosure.

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Figure 9. Removing the Mounting Clip Screws

Lift the two device mounting brackets (see 1 in Figure 10) upward and out of the 7212 Storage Enclosure. Set the two device mounting brackets and two mounting screws aside for use in securing a new device into the 7212 Storage Enclosure.

Figure 10. Removing the Mounting Clips from a Device or Blank Panel

Slide the device out of the 7212 Storage Enclosure.

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Note: The new device to be installed in the 7212 Storage Enclosure may require a

different SCSI address cable and audio cable than those used by the removed device. Remove the old SCSI address cable and audio cable from the 7212 Storage Enclosure as appropriate. The SCSI address cables are removed by depressing the tabs on the switch and guiding the switch cable out of the chassis.

Note the location of the two flat head screws (one on each side of the device). Remove the two flat head screws and set aside for use in securing a new device into the 7212 Storage Enclosure (see Figure 11 for screw locations).

This completes the device removal procedure. Follow the steps in “Installing a Storage Device in the Enclosure” to install a device.

Installing a Storage Device in the Enclosure

Prepare the 7212 Storage Enclosure for device installation by removing a device, using the steps in “Removing and Replacing the Cover” on page 28.

Determine into which bay the device is to be installed. If a device is already installed in the bay, follow the procedure in “Removing a Storage Device from the Enclosure” on page 29 to remove the device.

Locate the 7212 Storage Enclosure device field upgrade kit that you plan to install.

Prepare the device for installation into the 7212 Storage Enclosure by installing and tightening the 2 flat head screws into the device side mount holes as shown in Figure 11 (Do not attach Mounting brackets at this time).

Install the screws in the lowest set of device side mount screw holes

Note:

with one screw in the front left corner of the device and one screw in the rear right corner of the device.

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Figure 11. Installing the Device Mounting Screws

Slide the device into the 7212 Storage Enclosure through the front opening of the enclosure as shown in Figure 12 on page 32. Position the device so that is fully inserted into the 7212 Storage Enclosure and centered within the enclosure opening.

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Figure 12. Installing the Devices in the Enclosure

Grasp the finger tab of a device mounting bracket and place one of the M3 pan head screws 2 into the slot of the mounting bracket (see Figure 13). While holding the pan head screw in place with a screwdriver, carefully lower the mounting bracket down into the 7212 Storage Enclosure so that mounting bracket engages one of the flat head screws 1 on the side of the device. Screw the pan head screw into the bottom of the 7212 Storage Enclosure. Repeat the process for the second bracket. Two brackets are required.

Figure 13. Installing the Mounting Bracket

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Page 47

8. If

9. If

Recheck that the device is fully inserted into the 7212 Storage Enclosure and centered in the enclosure opening. While holding the device in position, tighten the two mounting screws (see 2 in Figure 13 on page 32). into the bottom of the 7212 Storage Enclosure.

the device is a DDS–4 tape, VXA technology tape, CD-ROM, or DVD-RAM drive, install the SCSI address cable included in the device feature kit. At the rear of the 7212 Storage Enclosure locate the rectangular hole adjacent to the cooling fan that is directly behind the bay where the device is installed (see

1 and 2 in Figure 2 on page 2). If the rectangular hole is covered with

tape, remove the tape. Thread the SCSI address cable into the 7212 Storage Enclosure through the rectangular hole, ensure that the address switch is upright, then snap the switch into the rectangular hole.

the device being installed is a CD-ROM or DVD-RAM drive and the drive

installed in bay B (see Figure 1 on page 1), install the audio connector assembly included in the device feature kit. At the rear of the 7212 Storage Enclosure locate the two circular holes adjacent to the right most cooling fan that is directly behind bay B (see 3 in Figure 2 on page 2). If the circular holes are covered with tape, remove the tape. From the inside of the 7212 Storage Enclosure, slide the audio connectors into the two circular holes, using the screw provided, attach the connector to the rear of the 7212 Storage Enclosure. Fasten the cylindrical EMC shield to the bottom of the 7212 Storage Enclosure using the clamp and screw provided in the kit.

10.

Route cables in the 7212 Storage Enclosure so that they do not interfere with the fans or other components in the enclosure. Use the cable clamps in the 7212 Storage Enclosure to restrain the cables. Connect the drive power cable, SCSI cable, SCSI address cable, and (if the device is a CD or DVD) the audio cable as appropriate.

11.

Install the cover. Lift the rear of the cover and slide it forward and onto the 7212 Storage Enclosure. Install the six screws (two on each side 1 and two on the back 2 ) that secure the top cover of the enclosure to the chassis.

Removing and Replacing the Power Supply

remove the power supply from the 7212 Storage Enclosure:

Perform the cover removal procedure. Refer to “Removing and Replacing the Cover” on page 28.

Disconnect the power switch cable 3 from the power supply by pinching the retaining tabs on the sides of the connector and pulling the cable connector out

the power supply assembly. Disconnect the power supply connector from the power distribution cable 4. Remove the mounting screw 1 located on the rear of the enclosure to the

right of the external power connector. Remove the two internal mounting screws 2 on the side of the power supply

assembly. Lift the front of the power supply assembly and pull the assembly forward. Lift

the assembly out and away from the enclosure.

DANGER

not attempt to open the covers of the power supply. Power supplies are

Do not serviceable and are to be replaced as a unit. (RSFTD217)

Chapter 3. Removal and Replacement

Page 48

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Figure 14. Removing and Replacing the Power Supply

To replace the power supply, reverse the removal procedure. Make sure to:

Tilt the power supply assembly and insert the rear of the assembly first, making sure the external power connector aligns with the access hole.

Arrange the cables so that they do not interfere with the cooling fan blades or the replacement of the cover. Ensure that they do not obstruct airflow through the fan.

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Page 49

Removing and Replacing the Cooling Fans

remove the cooling fan:

Perform the cover removal procedure. Refer to “Removing and Replacing the Cover” on page 28.

Disconnect the appropriate fan cable 1 from the status interface card. Remove the two screws, lockwashers, and nuts (2 or 3, as appropriate) that

secure the cooling fan to the rear of the 7212 Storage Enclosure. Lift the cooling fan out of the 7212 Storage Enclosure.

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Figure 15. Removing the Cooling Fans

replace the cooling fan, reverse this procedure. Make sure that the cooling fan is

oriented so that air blows out of the 7212 Storage Enclosure.

Chapter 3. Removal and Replacement

Page 50

Removing and Replacing the Power Switch Assembly

Use the following steps to remove the power switch assembly:

Perform the cover removal procedure. Refer to “Removing and Replacing the Cover” on page 28.

Disconnect the power switch cable 1 from the power supply by pinching the retaining tabs on the sides of the connector and pulling the cable connector out

the power supply assembly.

Remove the two screws 2 that secure the power switch bracket to the bottom

the 7212 Storage Enclosure chassis.

Gently pull the switch assembly towards the rear of the enclosure and lift it free.

The status LED cables are mounted to the power switch bracket. Refer to

Note:

the procedure in “Removing and Replacing the LED Status Light Cable”

page 37 for removal information.

Figure 16. Removing the Power Switch Cable Assembly

replace the power switch cable assembly, reverse this procedure.

Notes:

Use the LED status light cable replacement procedure to reinstall the LED cable.

Make sure to properly align the power button in the center of the chassis hole

avoid binding.

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Removing and Replacing the LED Status Light Cable

Use the following steps to remove the LED status light:

Perform the cover removal procedure. Refer to “Removing and Replacing the Cover” on page 28.

Perform the power switch assembly removal procedure. Refer to “Removing and Replacing the Power Switch Assembly” on page 36.

The status LED cables are mounted to the power switch bracket. Push the round LED lights forward and down and guide them carefully through the hole in the bottom of the switch bracket to free the cable.

Disconnect the LED cable from the status interface card.

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Figure 17. Removing the Status Interface Cable Assembly

replace the status interface cable assembly, reverse this procedure.

Note: Ensure the green LED is positioned above the yellow LED in the bracket.

Chapter 3. Removal and Replacement

Page 52

Removing and Replacing the Status Interface Card

Use the following steps to remove the status interface card:

Perform the cover removal procedure. Refer to “Removing and Replacing the Cover” on page 28.

Disconnect the fan cables, power supply cable, and LED cable from the status interface card. Remove the four screws 1 that secure the card to the bottom of the 7212 Storage Enclosure chassis.

Lift the card up and out of the enclosure.

Figure 18. Removing the Status Interface Card

replace the status interface card, reverse this procedure.

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7212 Storage Device Enclosure Service Guide

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Removing and Replacing the Power Distribution Cable

Use the following steps to remove the SCSI cable:

Perform the cover removal procedure. Refer to “Removing and Replacing the Cover” on page 28.

Disconnect the power cable connectors from the rear of each drive. Disconnect the power cable connector from the power source. Disconnect the power cable connector from the status interface card. Guide the cable out of the enclosure.

replace the power distribution cable, reverse this procedure.

Removing and Replacing the SCSI Cable

Use the following steps to remove the SCSI cable:

Perform the cover removal procedure. Refer to “Removing and Replacing the Cover” on page 28.

Disconnect the SCSI cable connectors from the rear of each drive. Remove the four hex screws ( 1 and 2 in Figure 19) that secure the external

SCSI connectors to the rear of the 7212 Storage Enclosure chassis. Open any clamps securing the cable or connectors and free the cable. Guide the cable out of the enclosure.

Figure 19. Removing the SCSI Cable

replace the SCSI cable, use one of the following procedures.

Installing a Split SCSI Bus Cable

Use the following procedure to install a split SCSI bus cable configuration in the 7212 Storage Device Enclosure:

Attach one external connector to the bottom SCSI slot on the rear of the enclosure chassis. Use the hex screws provided to attach the connector.

Guide the cable to the rear of the device installed in Bay B (See 2 in Figure 20

page 40) and connect the cable to the device.

Attach one of the terminators provided to the end of this SCSI cable.

Note: The internal SCSI cable routing will look similar to the examples illustrated

Figure 20 on page 40 and Figure 21 on page 41. The single device is shown as an example installed in Bay B in Figure 21 on page 41. The single device can also be installed in Bay A.

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Attach the second SCSI cable external connector to the top SCSI slot on the rear

the enclosure chassis. Use the connector screws provided to attach the

connector. Guide the cable to the rear of the device installed in Bay A (See 1 in

Figure 20) and connect the cable to the device. Attach one of the terminators provided to the end of this SCSI cable. Secure the SCSI cables and terminators to the enclosure chassis using the cable

clamps provided. Refer to “Securing the Internal SCSI Cables” on page 42 for the placement of the cable clamps.

Reassemble the enclosure and return it to the rack or place of operation.

Notes:

Make sure the cables do not interfere with other cables, fans, the installed devices or the enclosure power supply 3.

The terminators 4 should be secured to the enclosure support structure 5 using the rectangular, two-part clamps provided.

Figure 20. Example of a Split SCSI bus Cable connection with Two Installed Devices

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Figure 21. Example of a Split SCSI bus Cable connection with One Installed Device

Installing a Single SCSI Bus Cable

Use the following procedure to install a single SCSI bus cable configuration in the 7212 Storage Device Enclosure:

Attach one external connector to the bottom SCSI slot on the rear of the enclosure chassis. Use the hex screws provided to attach the connector.

Guide the cable to the rear of the device installed in Bay B (See 2 in Figure 22

page 42) and connect the cable to the device.

Note: The internal SCSI cable routing will look similar to the examples illustrated

Figure 22 on page 42 and Figure 23 on page 42. The single device is shown as an example installed in Bay B in Figure 23 on page 42. The single device can also be installed in Bay A.

Attach the second SCSI cable external connector to the top SCSI slot on the rear

the enclosure chassis. Use the connector screws provided to attach the

connector. Guide the cable to the rear of the device installed in Bay A (See 1 in Figure 22

page 42) and connect the cable to the device.

Ensure the short SCSI bridge cable connectors are seated securely in the SCSI cables and route the cable around the vertical support structure separating the installed devices.

Secure the SCSI cables and cable bridge connectors to the enclosure chassis using the cable clamps provided. Refer to “Securing the Internal SCSI Cables”

page 42 for the placement of the cable clamps. Attach a terminator to the end of the SCSI bus 4. Reassemble the enclosure and return it to the rack or place of operation.

Notes:

Make sure the cables do not interfere with other cables, fans, the installed devices or the enclosure power supply 3.

The SCSI cable connections should be secured to the enclosure support structure 5 using the rectangular, two-part clamps provided.

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Figure 22. Example of a Single SCSI bus Cable connection with Two Installed Devices

Figure 23. Example of a Single SCSI bus Cable connection with One Installed Device

Securing the Internal SCSI Cables

After installing the cables, the cable clamps should be installed. The two self-adhesive connector clamps (see 1 in Figure 24 on page 43) and the three cable clamps (see 2 in Figure 24 on page 43) included with the assembly are used

secure the cable assembly to the enclosure. This prevents the cables from

moving or interfering with the device performance.

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Figure 24. The SCSI Cable Clamps

Mount the two connector clamps on the raised, support structure on the bottom of the enclosure (see Figure 25.) Mount the three cable guide clamps in the approximate places indicated in Figure 25 so that the SCSI cables can be easily channeled through the clamp openings.

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Figure 25. Placing the Internal SCSI Cable Clamps

Secure the internally installed terminators or the SCSI cable bridge connectors in the rectangular clamps secured to the chassis support bar. Lift the flat clamp cover (see 3 in Figure 24) off the clamp assembly, place the terminator or connector in the clamp cradle (see 4 in Figure 24), and then press the clamp cover in place, securing the SCSI cable.

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Page 58

Removing and Replacing the SCSI Address Cables

Use the following steps to remove the SCSI address cables:

Perform the cover removal procedure. Refer to “Removing and Replacing the Cover” on page 28.

Disconnect the SCSI address cable connector from the rear of the drive. Press the sides of the SCSI address bracket that secures the cable to the rear of

the enclosure chassis. With the side clips of the bracket pressed, push the bracket and cable out

through the back of the 7212 Storage Enclosure chassis. Guide the cable out of the enclosure.

Some of the internal components are not shown in the following illustration

Note:

order to more clearly show locations referenced.

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Figure 26. Removing the SCSI Address Cable

replace the SCSI address cable, reverse this procedure.

Note: Ensure that the address switch is installed correctly, in the upright position.

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Page 59

Removing and Replacing the Audio Cable Assembly

Use the following steps to remove the audio cable:

Perform the cover removal procedure. Refer to “Removing and Replacing the Cover” on page 28.

Disconnect the audio cable connector from the rear of the drive in Bay B. Remove the screw that secures the torroid to the bottom of the enclosure

chassis. Remove the screw ( 1 in Figure 27) that secures the external audio jacks to

the rear of the 7212 Storage Enclosure chassis. Guide the cable out of the enclosure.

Figure 27. Removing the Audio Cable

replace the audio cable, reverse this procedure.

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v Do

2. If

Chapter 4. Servicing the DDS–4, 4mm Tape Drive

This chapter describes procedures to follow when a problem is detected with an installed 4mm tape drive feature. For additional information about the status lights, operating features, and rear connections on the 4mm tape drive feature, refer to Chapter 7 in the 7212 Model 102 Storage Device Enclosure Setup and Operator

Guide

Before using or servicing any FRU, let it acclimate to the operating environment for as long as it has been away from the environment or for 24 hours, whichever is less.

Handling Static-Sensitive Devices

Attention:

Storage devices drives are sensitive to static electricity discharge. To

prevent damage, when handling a storage device drive wrap it in an antistatic bag.

Take the following precautions:

not remove the drive from its antistatic bag until you are ready to install it.

With the drive still in its antistatic bag, touch it to the metal frame of an electrically grounded surface.

Hold the drive by the frame. Avoid touching the solder joints or pins. Handle the drive carefully to prevent permanent damage.

Manually Removing a Tape Cartridge

Attention:

your tape cartridge, the tape drive , or both. Use this procedure only after you have:

Turned the power to the 7212 Storage Enclosure off and on again to clear potential hang conditions.

available, issued the

menu. Disconnected the 7212 Storage Enclosure from the system, and turned the

power to the 7212 Storage Enclosure on and off again several times. Attempted an emergency eject of the cartridge by pressing and holding the

unload button for at least five seconds.

The procedure for manually removing a tape cartridge could damage

Unload SCSI

command from your system command

Page 62

The following procedure describes how to manually remove a data cartridge from the tape drive. If this procedure is performed, replace the drive, discard the used media, and use new media.

Remove the drive from the 7212 Storage Enclosure (see “Removing a Storage Device from the Enclosure” on page 29).

Remove the mounting rails by removing the four screws (1 in Figure 28) near the lower edge of the drive (two on each side). Access the screws through holes

the side of each rail.

Remove the front bezel (the bezel snaps on) by doing the following:

Use a small screwdriver to depress one of the bezel tabs 2. Pull the bezel down from the top.

Lift the bezel off the bottom locating tabs.

Remove the bezel from the unit.

Figure 28. Removing the Mounting Rails from the Drive

7212 Storage Device Enclosure Service Guide

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Page 63

Remove the top lid of the drive mechanism (4 screws 3). Insert a 1.5 mm hexagonal key or a small Phillips screwdriver into the aperture

the right side of the drive looking from rear. This gives you access to the motor worm wheel, as shown in Figure 29. Turn the hexagonal key or small screwdriver counter-clockwise to release the cartridge.

Note: This may take more than 1000 turns

Figure 29. Turning the Motor Worm Wheel to Release the Cartridge

Reassemble the drive in reverse order. Replace the drive and media.

Chapter 4. Removal and Replacement

Page 64

7212 Storage Device Enclosure Service Guide

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2. If

Chapter 5. Servicing the DAT 72, 4mm Tape Drive

This chapter describes procedures to follow when a problem is detected with an installed DAT 72 tape drive feature. For additional information about the status lights, operating features, and rear connections on the DAT 72 tape drive feature, refer to Chapter 8 in the 7212 Model 102 Storage Device Enclosure Setup and Operator

Guide

Before using or servicing any FRU, let it acclimate to the operating environment for as long as it has been away from the environment or for 24 hours, whichever is less.

Handling Static-Sensitive Devices

Attention:

Storage devices drives are sensitive to static electricity discharge. To

prevent damage, when handling a storage device drive wrap it in an antistatic bag.

Take the following precautions:

not remove the drive from its antistatic bag until you are ready to install it.

With the drive still in its antistatic bag, touch it to the metal frame of an electrically grounded surface.

Hold the drive by the frame. Avoid touching the solder joints or pins. Handle the drive carefully to prevent permanent damage.

Manually Removing a Tape Cartridge

Attention:

your tape cartridge, the tape drive , or both. Use this procedure only after you have:

Turned the power to the 7212 Storage Enclosure off and on again to clear potential hang conditions.

available, issued the

menu. Disconnected the 7212 Storage Enclosure from the system, and turned the

power to the 7212 Storage Enclosure on and off again several times. Attempted an emergency eject of the cartridge by pressing and holding the

unload button for at least five seconds.

The procedure for manually removing a tape cartridge could damage

Unload SCSI

command from your system command

Page 66

The following procedure describes how to manually remove a data cartridge from the tape drive. If this procedure is performed, replace the drive, discard the used media, and use new media.

Remove the drive from the 7212 Storage Enclosure (see “Removing a Storage Device from the Enclosure” on page 29).

Remove the mounting rails by removing the four screws (1 in Figure 30) near the lower edge of the drive (two on each side). Access the screws through holes

the side of each rail.

Remove the front bezel (the bezel snaps on) by doing the following:

Use a small screwdriver to depress one of the bezel tabs 2. Pull the bezel down from the top.

Lift the bezel off the bottom locating tabs.

Remove the bezel from the unit.

Figure 30. Removing the Mounting Rails from the Drive

7212 Storage Device Enclosure Service Guide

RBBUB505-0

Page 67

Remove the top lid of the drive mechanism (4 screws 3). Insert a 1.5 mm hexagonal key or a small Phillips screwdriver into the aperture

the right side of the drive looking from rear. This gives you access to the motor worm wheel, as shown in Figure 31. Turn the hexagonal key or small screwdriver counter-clockwise to release the cartridge.

Note: This may take more than 1000 turns

Figure 31. Turning the Motor Worm Wheel to Release the Cartridge

Reassemble the drive in reverse order. Replace the drive and media.

Chapter 5. Removal and Replacement

Page 68

7212 Storage Device Enclosure Service Guide

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2. If

Chapter 6. Servicing the VXA Technology Tape Drive

This chapter describes procedures to follow when a problem is detected with an installed VXA technology tape drive feature. For additional information about the status lights, operating features, and rear connections on the VXA tape drive feature, refer to Chapter 8in the 7212 Model 102 Storage Device Enclosure Setup and

Operator Guide

Before using or servicing any FRU, let it acclimate to the operating environment for as long as it has been away from the environment or for 24 hours, whichever is less.

Handling Static-Sensitive Devices

Attention:

Storage devices drives are sensitive to static electricity discharge. To

prevent damage, when handling a storage device drive wrap it in an antistatic bag.

Take the following precautions:

not remove the drive from its antistatic bag until you are ready to install it.

With the drive still in its antistatic bag, touch it to the metal frame of an electrically grounded surface.

Hold the drive by the frame. Avoid touching the solder joints or pins. Handle the drive carefully to prevent permanent damage.

Manually Removing a Tape Cartridge

Attention:

your tape cartridge, the tape drive , or both. Use this procedure only after you have:

Turned the power to the 7212 Storage Enclosure off and on again to clear potential hang conditions.

available, issued the

menu. Disconnected the 7212 Storage Enclosure from the system, and turned the

power to the 7212 Storage Enclosure on and off again several times. Attempted an emergency eject of the cartridge by pressing and holding the

unload button for at least five seconds.

The procedure for manually removing a tape cartridge could damage

Unload SCSI

command from your system command

Page 70

The following procedure describes how to manually remove a data cartridge from the tape drive. If this procedure is performed, replace the drive, discard the used media, and use new media.

Remove the drive from the 7212 Storage Enclosure (see “Removing a Storage Device from the Enclosure” on page 29).

Remove the front bezel (the bezel snaps on) by doing the following:

Use a small screwdriver to press the bezel tabs 1 on each side of the drive. Rotate the bottom of the bezel toward the front to release the bezel attachments on the top of the drive. Lift the bezel off the top locating tabs. Remove the bezel from the unit.

Figure 32. Removing the Bezel and Top Cover from the Drive

RBBU2514-0

7212 Storage Device Enclosure Service Guide

Page 71

Remove the top lid of the drive mechanism by doing the following:

Use a small screwdriver to press the top tabs 2 on each side of the drive.

Slide the cover approximately 5mm to the rear, and then lift the cover off. Locate the large thumb wheel below the right side of the data cartridge. Gently rotate the thumb wheel (see 1 in Figure 33) counter-clockwise to

remove slack from the tape by winding the media onto the take-up reel. Insert a Phillips head screwdriver in the Load Motor Access hole (see 2 in

Figure 33). Rotate the load motor clockwise to unwind the tape path. Unwind the mechanism until tape slack appears.

Once tape slack appears, gently rotate the thumb wheel again to remove the slack from the tape by winding the media onto the take-up reel.

Repeat steps 6 and 7 until all of the tape media is wound onto the cartridge take-up wheel.

When the tape is completely rewound into the cartridge, turn the load motor clockwise until the tape cartridge is lifted out of the drive mechanism and ejected.

10.

Remove the tape cartridge.

Figure 33. Turning the Load Motor to Release the Cartridge

11.

Install the bezel.

Insert Bezel top catch tabs into their the respective openings in the top of

the drive chassis so that notches catch on drive chassis.

Open bezel door by inserting one index finger through the door opening.

Attention: You will need to keep the door open until the bezel has been fully

seated to be sure the door is positioned behind the door opening mechanism.

With the bezel door open, and top catch tabs inserted into their slots rotate

the bezel down slowly, ensuring the side catch tabs clip on the inside of the metal drive chassis.

RBBU2511-0

Chapter 6. Removal and Replacement

Page 72

Ensure chassis tabs located on bottom edge of the metal drive chassis fit into the notches on the bottom of the bezel. After the bezel is installed on the drive, make sure that the front door opens and closes without resistance. If the door appears stuck when you try and open in, then the bezel is installed improperly. Remove the bezel and repeat the bezel installation procedure, insuring that the door is kept open while installing the bezel.

Attention: Attempting to force the door open with the bezel installed

incorrectly may result in damage to both the bezel and drive, requiring repair

replacement.

12.

Attach the top cover.

13.

Reassemble the enclosure in reverse order.

14.

Replace the drive and media.

7212 Storage Device Enclosure Service Guide

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v Do

If a

Chapter 7. Servicing the SLR60 or SLR100 Tape Drive

This chapter describes procedures to follow when a problem is detected with an installed SLR60 or SLR100 tape drive feature. For additional information about the status lights, operating features, and rear connections on the SLR tape drive feature, refer to Chapter 10 in the 7212 Model 102 Storage Device Enclosure Setup and

Operator Guide

Before using or servicing any FRU, let it acclimate to the operating environment for as long as it has been away from the environment or for 24 hours, whichever is less.

Handling Static-Sensitive Devices

Attention:

Storage devices drives are sensitive to static electricity discharge. To

prevent damage, when handling a storage device drive wrap it in an antistatic bag.

Take the following precautions:

not remove the drive from its antistatic bag until you are ready to install it.

With the drive still in its antistatic bag, touch it to the metal frame of an electrically grounded surface.

Hold the drive by the frame. Avoid touching the solder joints or pins. Handle the drive carefully to prevent permanent damage.

Manually Removing a Tape Cartridge

power failure or a drive failure prevents the tape cartridge from ejecting, the

cartridge can be removed manually.

Before manually removing the tape cartridge, reset the autoloader to clear potential error conditions and try all procedures available to remove the tape cartridge. If the tape does not eject, proceed with the manual removal.

Attention: The procedure that follows may result in damage to your tape

cartridge. If you use this procedure, you must replace the drive. If you choose to return the drive and the stuck tape to IBM for maintenance, the tape will be scrapped.

The procedure for removing a tape cartridge varies for the following two conditions:

Standby position - with the bridge moved away from the cartridge Locked position - with the bridge engaged to the cartridge

determine which position the tape unit is in, open the tape unit door and check

To the location of the bridge.

manually remove a tape cartridge:

Perform the drive removal procedure. Refer to the 7212 Model 102 Storage Device Enclosure Setup and Operator Guide.

Place the tape drive assembly on a flat work surface and position the drive so that it faces you.

Page 74

the tape drive is in the Locked position, the bridge C is positioned to

prevent the tape cartridge from being removed. Open the tape unit door. Locate the metal axle B inside the tape unit. Look towards the lower right

corner. Insert a pointed object (for example, a pen or screwdriver) into the tape unit

and push the axle inward. Push the bridge C to the right. The tape unit is now in Standby position. Locate the hook shaped metal rod A inside the tape unit in the upper left

corner. Insert a pointed object (for example, a pen or screwdriver) into the tape unit

and push the metal rod downward. Pull the metal rod forward until the cartridge ejects. The cartridge D is

pushed out the tape unit door and can be removed.

Figure 34. Manually Removing a Tape Cartridge

Note: Service personnel should record the fact that the tape cartridge had to be

manually removed.

7212 Storage Device Enclosure Service Guide

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Chapter 8. Servicing the DVD-RAM Drive

This chapter describes procedures to follow when a problem is detected with an installed DVD-RAM drive feature. For additional information about the status lights, operating features, and rear connections on the DVD-RAM drive feature, refer to Chapter 9 in the 7212 Model 102 Storage Device Enclosure Setup and Operator

Guide

Before using or servicing any FRU, let it acclimate to the operating environment for as long as it has been away from the environment or for 24 hours, whichever is less.

Handling Static-Sensitive Devices

Attention:

Storage devices drives are sensitive to static electricity discharge. To

prevent damage, when handling a storage device drive wrap it in an antistatic bag.

Take the following precautions:

not remove the drive from its antistatic bag until you are ready to install it.

With the drive still in its antistatic bag, touch it to the metal frame of an electrically grounded surface.

Hold the drive by the frame. Avoid touching the solder joints or pins. Handle the drive carefully to prevent permanent damage.

Page 76

If a

Manually Removing a DVD Disc from the Drive

power failure or a DVD-RAM drive failure prevents the DVD disc tray from

ejecting, the disc can be removed manually.

manually remove the DVD disc:

Turn off the power to the 7212 Storage Enclosure. Insert a solid metal rod (such as a paper clip or bristol wrench) into the manual

unload hole until resistance is met, then push to unlatch the DVD disc tray. (Figure 35 shows the manual unload hole 1 in the DVD-RAM drive. The metal rod should have a diameter of 2 mm (0.08 in.) or less.

Note: This step may have to be repeated several times.

DVD

RAM

COMPACT

dsc

RBBTWP520-0

Figure 35. Location of the Manual Unload Hole in the DVD-RAM Drive

Gently pull out the disc tray and remove the disc.

RBBTV538-0

Figure 36. Removing a Disc

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Chapter 9. Servicing the DVD-ROM Drive

This chapter describes procedures to follow when a problem is detected with an installed DVD-ROM drive feature. For additional information about the status lights, operating features, and rear connections on the DVD-ROM drive feature, refer to Chapter 12 in the 7212 Model 102 Storage Device Enclosure Setup and Operator

Guide

Before using or servicing any FRU, let it acclimate to the operating environment for as long as it has been away from the environment or for 24 hours, whichever is less.

Handling Static-Sensitive Devices

Attention:

Storage devices drives are sensitive to static electricity discharge. To

prevent damage, when handling a storage device drive wrap it in an antistatic bag.

Take the following precautions:

not remove the drive from its antistatic bag until you are ready to install it.

With the drive still in its antistatic bag, touch it to the metal frame of an electrically grounded surface.

Hold the drive by the frame. Avoid touching the solder joints or pins. Handle the drive carefully to prevent permanent damage.

Page 78

If a

Manually Removing a DVD Disc from the Drive

power failure or a DVD-ROM drive failure prevents the DVD disc tray from

ejecting, the disc can be removed manually.

manually remove the DVD disc:

Turn off the power to the 7212 Storage Enclosure. Insert a solid metal rod (such as a paper clip or bristol wrench) into the manual

unload hole until resistance is met, then push to unlatch the DVD disc tray. (Figure 37 shows the manual unload hole 1 in the DVD-ROM drive. The metal rod should have a diameter of 2 mm (0.08 in.) or less.

Note: This step may have to be repeated several times.

DVD

ROM

COMPACT

dsc

RBBTWP527-0

Figure 37. Location of the Manual Unload Hole in the DVD-ROM Drive

Gently pull out the disc tray and remove the disc.

RBBTV538-0

Figure 38. Removing a Disc

7212 Storage Device Enclosure Service Guide

Page 79

00 00 in

v v

v v v

-1

-2

-3

-4

-5

-6 NP 1

-7

Chapter 10. Parts Diagram and Parts List

This chapter provides the parts diagram and parts list required to service the 7212 Model 102 Storage Device Enclosure.

How To Use This Parts List

(As Required) in the Units column indicates that the quantity is not the same for all machines.

(Non-Procurable) in the Part Number column indicates that the part is non-procurable and that the individual parts or the next higher assembly should be ordered.

(Not Recommended) in the Units column indicates that the part is procurable but not recommended for field replacement, and that the next higher assembly should be ordered.

the Asm- Index column indicates that the part is either not shown or

not referenced in the illustration. (Restricted) in the Units column indicates that the part has a restricted

availability.

Indent

The indenture is marked by a series of dots located before the parts description. The indenture indicates the relationship of a part to the next higher assembly. For example:

Indent (No dot) (One dot) (Two dots) (Three dots)

Relationship of Parts

MAIN ASSEMBLY

Detail or sub assembly parts of a main assembly

Detailor sub assembly part of a one-dot sub assembly

Detail part of a two-dot sub assembly

Example of Parts Listing

Asm-

Index

Part Number Units Description

2512667 2513714

5373637 5356429 1847630 1847602 5373639

0416629

Cover Asm, Rear, Red Cover Asm, Rear, White For Next Higher Asm, see Assembly 1-2.

vSeal, Top vClip, Retaining vFinger Stock Asm vvChannel, Finger Stock vSeal, Bottom vCover, Rear, Without Paint vScrew, Panel

Page 80

Assembly 1: Parts Diagram

RBBTW526-3

16 17 18 19

7212 Storage Device Enclosure Service Guide

Page 81

Assembly 1: (continued)

Asm– Index

Part Number

Units Description

1–1 19P4013 1 Power switch assembly

–2 19P4012 1 LED cable asembly –3 19P3805 1 Power supply –4 19P4009 1 Cover –5 19P4450 1 Power distribution cable –6 19P4011 1 Status interface card –7 92F0324 1 50 to 68 pin interposer (DVD-RAM only) –8 19P5037 1 Cable assembly, SCSI-2 internal –9 19P4010 2 Cooling fan –10 19P4172 1 Cable, SCSI address (DVD) –10 19P4169 1 Cable, SCSI address (DDS-4) –10 19P5591 1 Cable, SCSI address (VXA) –10 24R0063 1 Cable, SCSI address (SLR60/100) –11 19P4173 1 Audio jack cable (CD-ROM) –11 19P4175 1 Audio jack cable (DVD-RAM) –12 NP 1 Chassis –13 19P4481 4 Screw, flat head, drive mount –14 04N5967 1 DVD-RAM drive –14 97P5716 1 DVD-RAM2 drive –14 80P2293 1 DVD-ROM drive –15 19P4898 1 VXA drive –16 19P1412 1 CD-ROM drive –17 19P0802 1 DDS-4 drive –17 18P8779 1 DAT 72 drive –18 19P4090 1 SLR60 drive –19 09L5276 1 SLR100 drive –20 19P4181 1 Drive blank –21 19P4017 4 Bracket, drive mount –22 19P4018 1 Label, LED –23 19P4019 1 Label, IBM logo –24 19P5078 2 Cable clamp base, rectangular C-clamp –25 19P5079 2 Cable clamp cover, rectangular C-clamp –26 59F4585 1 Toroid –00 19P4756 5 Cable clamp, kwik clip 5/16 inch –00 19P4757 3 Cable clamp, kwik clip 7/16 inch –00 19P5080 1 Label, Split SCSI Bus –00 19P5081 1 Label, Single SCSI Bus –00 19P0051 1 Device-to-device SCSI bus cable, 0.5 meter HD68-HD68 –00 19P4507 1 Device-to-device SCSI bus cable, 0.5 meter VHDCI-HD68 –00 19P0873 1 Device-to-device SCSI bus cable, 0.7 meter VHDCI-HD68 –00 19P0048 1 Device-to-device SCSI bus cable, 10.0 meter VHDCI-HD68 –00 19P4506 1 Device-to-device SCSI bus cable, 1.5 meter HD68-HD68 –00 19P4508 1 Device-to-device SCSI bus cable, 1.5 meter VHDCI-HD68 –00 19P0279 1 Device-to-device SCSI bus cable, 2.5 meter VHDCI-HD68 –00 19P0050 1 Device-to-device SCSI bus cable, 4.5 meter VHDCI-HD68 –00 19P0052 1 Device-to-device SCSI bus cable, 5.0 meter VHDCI-HD68 –00 19P1307 1 Device-to-device SCSI bus cable, 2.5 meter HD68-HD68 –00 61X8867 5 Rubber foot –00 19P4482 1 Rack mount hardware kit –00 19P4016 1 Rack spacer bar

Chapter 10. Parts Diagram and List

Page 82

Assembly 1: (continued)

Asm– Index

Part Number

Units Description

–00 19P0005 1 Rack slide rails –00 34L0145 2 Terminator, LVD –00 19P4754 13 Screw, M3 x 4mm low profile –00 19P4755 6 Screw, M3 x 6mm flat head –00 21F8763 1 DDS-4 cleaning cartridge –00 59H4457 1 DDS-4 test cartridge –00 19P4879 1 VXA Test cartridge –00 19P4880 1 VXA Cleaning cartridge –00 35L0967 1 SLR Test cartridge –00 35L0844 1 SLR Cleaning cartridge –00 81F8902 1 Test CD-ROM disc –00 97H7611 1 CD-ROM drive bezel –00 19P2410 1 Test DVD-RAM disc –00 18P8166 1 Test DVD-RAM2 disc –00 19P0489 1 Cleaning kit, DVD (disc and lens)

7212 Storage Device Enclosure Service Guide

Page 83

2 ©

Appendix A. Power Cables

avoid electrical shock, a power cable with a grounded attachment plug has been

provided. Use only properly grounded outlets.

Power cables used in the United States and Canada are listed by Underwriter’s Laboratories (UL) and certified by the Canadian Standards Association (CSA). The power cables consist of:

Electrical cables, type SVT or SJT. Attachment plugs complying with National Electrical Manufacturers Association

(NEMA) 5-15P, that is: “For 115 V operation use a UL Listed Cable Set consisting of a minimum 18

AWG, Type SVT or SJT three conductor cable a maximum of 15 feet in length and a parallel blade, grounding type attachment plug rated at 15 A, 125 V.”

“For 230 V operation in the United States use a UL Listed Cable Set consisting of

minimum 18 AWG, Type SVT or SJT three conductor cable a maximum of 15

feet in length, and a tandem blade, grounding type attachment plug rated at 15

250 V.”

Appliance couplers complying with International Electrotechnical Commission (IEC) Standard 320, Sheet C13.

Power cables used in other countries consist of:

Electrical cables, type HD21. Attachment plugs approved by the appropriate testing organization for the

specific countries where they are used. “For units set at 230 V (outside of U. S.): Use a Cable Set consisting of a

minimum 18 AWG cable and grounding type attachment plug rated 15 A, 250 V. The Cable Set should have the appropriate safety approvals for the country in which the equipment is to be installed and marked 'HAR'.”

Table

lists the power cable part number, the country where the power cable can

used, and an index number to be matched with the receptacles shown in Figure 39 on page 70. If your power cable does not match this information, contact your local dealer.

Table 9. Power Cable Information

Part Number

1838574 Japan

6952300 US/Canada

Country or Region

Bahamas, Barbados, Bolivia, Brazil, Canada, Costa Rica, Dominican Republic, Ecuador, El Salvador, Guatemala, Guyana, Haiti, Honduras, Jamaica, Japan, Netherlands Antilles, Panama, Peru, Philippines, Taiwan, Thailand, Tobago, Trinidad, U.S.A. (except Chicago), Venezuela

Bahamas, Barbados, Bermuda, Bolivia, Brazil, Canada, Cayman Islands, Colombia, Costa Rica, Dominican Republic, Ecuador, El Salvador, Guatemala, Guyana, Haiti, Honduras, Jamaica, Japan, Korea (South), Mexico, Netherlands Antilles, Nicaragua, Panama, Peru, Philippines, Puerto Rico, Saudi Arabia, Suriname, Taiwan, Trinidad, U.S.A. (except Chicago), Venezuela

Index

Page 84

Table 9. Power Cable Information (continued)

Part Number

6952301 6 ft Chicago 13F9940 Australia 13F9979 France

Country or Region

Chicago, U.S.A. Argentina, Australia, New Zealand, Uruguay Abu Dhabi, Austria, Belgium, Bulgaria, Botswana,

Index

Egypt, Finland, France, Germany, Greece, Iceland, Indonesia, Korea (South), Lebanon, Luxembourg, Macau, Netherlands, Norway, Portugal, Saudi

Arabia, Spain, Sudan, Sweden, Turkey, Yugoslavia 13F9997 Denmark 14F0015 South Africa

Denmark

Bangladesh, Burma, Pakistan, South Africa, Sri

Lanka 14F0033 United

Kingdom

Bahrain, Bermuda, Brunei, Channel Islands,

Cyprus, Ghana, Hong Kong, India, Iraq, Ireland,

Jordan, Kenya, Kuwait, Malawi, Malaysia,

Nigeria, Oman, People’s Republic of China, Qatar,

Sierra Leone, Singapore, Tanzania, Uganda,

United Arab Emirates (Dubai), United Kingdom,

Zambia 14F0051 Switzerland 14F0069 Italy 14F0087 Israel 6952291 Colombia

Liechtenstein, Switzerland

Chile, Ethiopia, Italy

Israel

Colombia, Paraguay

123

56 7 8

910 11

26415-00

Figure 39. Types of Receptacles

7212 Storage Device Enclosure Service Guide

Page 85

to or

Appendix B. Safety Inspection Procedures

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

An electrical outlet that is not correctly wired could place hazardous voltage

DANGER

To prevent a possible electrical shock when adding or removing any devices

Use the following procedures to identify unsafe conditions. Be cautious of potential safety hazards not covered by the procedures. If unsafe conditions are present, determine how serious the hazards are and whether you should continue before correcting the problem.

Figure 40 shows the components to review during the service inspection.

Figure 40. Performing the Safety Inspection

RBBTW505-0

Page 86

1. Do a

to or

Perform the following safety checks.

controlled system shutdown. Refer to the instructions in the 7212 Model

102 Storage Device Enclosure Setup and Operator Guide. Turn off the power to all external devices connected to the system unit. Turn off the power to the 7212 Storage Enclosure(1 in Figure 40 on page 71). Turn off the power to the system unit 2.

DANGER

An electrical outlet that is not correctly wired could place hazardous voltage

Unplug the 7212 Storage Enclosure external power cable from the electrical

outlet.

Unplug the system unit power cable from the electrical outlet.

Check the 7212 Storage Enclosure external power cable for damage.

DANGER

prevent a possible electrical shock from touching two surfaces with

To different electrical grounds, use one hand, when possible, to connect or disconnect signal cables. (RSFTD004)

DANGER

prevent a possible electrical shock when adding or removing any devices

Check the external SCSI bus (signal) cable 3 for damage. Check the SCSI bus terminator for damage.

10.

Check the covers for sharp edges, damage, or alterations that expose the internal parts of the 7212 Storage Enclosure.

11.

Check the covers for proper fit. They should be in place and secure.

12.

Check the product label at the back of the 7212 Storage Enclosure to make sure it matches the voltage at your outlet.

DANGER

Dangerous

voltage being measured. (RSFTD005)

13.

Check the voltage level at the outlet and also check for proper grounding.

14.

With the external power cable (1 in Figure 41 on page 73) connected to the 7212 Storage Enclosure, check to ensure 1.0 ohm or less resistance between the ground lug on the external power cable plug and the metal frame.

7212 Storage Device Enclosure Service Guide

Page 87

Figure 41. Rear View of the 7212 Storage Enclosure

Note: Use an analog meter to measure grounding resistance; do not use a

digital multimeter.

15.

the 7212 Storage Enclosure passes the test in the previous step, plug its external power cable into the electrical outlet. If the 7212 Storage Enclosure does not pass the test, see Chapter 2, “Maintenance Analysis Procedures,” on page 11 for more information. If problems persist, contact your service representative.

The Safety Information Label located on top of the power supply under the

Note:

top cover, shows the following symbol:

RBBTW506-0

This symbol indicates a hazard arising from dangerous voltage inside. Do not open.

A38M0010

Appendix B. Safety Inspection Procedures

Page 88

7212 Storage Device Enclosure Service Guide

Page 89

h No

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