IBM System Storage 7207 User manual

7207 Model 122 4GB External SLR5
Quarter-Inch Cartridge Tape Drive IBM
Setup, Operator, and Service Guide
SA37-0400-00

7207 Model 122 4GB External SLR5
Quarter-Inch Cartridge Tape Drive IBM
Setup, Operator, and Service Guide
SA37-0400-00

Note!
Before using this information and the product it supports, be sure to read the general information under “Notices” on page v.
First Edition (October 1998)
The following paragraph does not apply to any 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
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
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When you send information to IBM, you grant IBM a nonexclusive right to use or distribute the information in any way it believes
appropriate without incurring any obligation to you.
 Copyright International Business Machines Corporation 1998. All rights reserved.
Note to U.S. Government Users — Documentation related to restricted rights — Use, duplication or disclosure is subject to
restrictions set forth in GSA ADP Schedule Contract with IBM Corp.

Contents
Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Safety Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Danger Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Caution Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Attention Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
End of Life (EOL) Plan .................................. vi
Electronic Emission Notices ............................... vi
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
About This Guide .................................... ix
Related Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Chapter 1. General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
System Requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Chapter 2. Setting Up the 7207 Tape Drive .................... 3
Performing the Installation ................................ 3
Step 1. Using the Inventory Checklist ....................... 3
Step 2. Checking the Electrical Outlets ...................... 4
Step 3. Running the Self Test ........................... 4
Step 4. Determining the SCSI Address ...................... 5
Step 5. Setting the SCSI Address ......................... 6
Step 6. Placing the 7207 Tape Drive ....................... 7
Step 7. Performing a System Shutdown ..................... 7
Step 8. Connecting the SCSI Bus Cable ..................... 8
Step 9. Installing the SCSI Bus Terminator .................... 9
Step 10. Connecting the Power Cables ..................... 10
Step 11. Performing the Checkout Procedure ................. 10
Chapter 3. Using the 7207 Tape Drive ...................... 13
Operator Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Power Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Unload Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Indicator Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Power-On Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Status Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Loading Tape Cartridges ............................... 14
Unloading Tape Cartridges .............................. 16
Cleaning the Tape Drive ................................ 16
Chapter 4. Using the Media ............................ 19
Types of Tape Cartridges ............................... 19
Data Cartridge Usage and Erasure ......................... 19
Operating and Non-operating Environments .................... 20
Data Cartridge Compatibility ............................. 20
Technical Notes about Using SMIT ........................ 22
Tape Cartridge Efficiency ............................... 23
Setting the Write-Protect Switch ........................... 24
Ordering Tape Cartridges ............................... 24
 Copyright IBM Corp. 1998 iii

Chapter 5. Performing Service on the 7207 Tape Drive ........... 27
Safety Inspection Procedures ............................. 28
Maintenance Analysis Procedures .......................... 30
Step 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Step 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Step 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Step 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Step 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Step 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Step 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Step 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Step 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Step 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Step 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Chapter 6. Moving the 7207 Tape Drive ..................... 37
Move Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Chapter 7. Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Appendix. Power Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
iv 7207 Tape Drive Setup, Operator, and Service Guide

Notices
References in this publication to IBM products, programs, or services do not imply that IBM intends to
make these available in all countries in which IBM operates.
Any reference to an IBM program or other IBM product in this publication is not intended to state or imply
that only IBM’s program or other product may be used. Any functionally equivalent program that does not
infringe any of IBM’s intellectual property rights may be used instead of the IBM product. Evaluation and
verification of operation in conjunction with other products, except those expressly designated by IBM, is
the user’s responsibility.
IBM may have patents or pending patent applications covering subject matter 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 the IBM Director of Licensing, IBM Corporation, 500 Columbus Avenue, Thornwood,
NY 10594, U.S.A.
Safety Notices
When using this product, observe the danger, caution, and attention notices contained in this guide. Each
danger and caution notice contains a reference number (72XXDxxx or 72XXCxxx). Use the reference
number to check the translation in External Devices Safety Information , SA26-7003.
Examples of danger, caution, and attention notices follow.
Danger Notices
A danger notice calls attention to a situation that is potentially lethal or extremely hazardous to people.
The following is a sample danger notice:
DANGER
An electrical outlet that is not correctly wired could place hazardous
voltage on metal parts of the system or the products that attach to
the system. It is the customer’s responsibility to ensure that the outlet
is correctly wired and grounded to prevent an electrical shock.
(72XXD201)
Caution Notices
A caution notice calls attention to a situation that is potentially hazardous to people because of some
existing condition. The following is a sample caution notice:
CAUTION:
Do not attempt to use the handle on the module to lift the entire device
(module and enclosure) as a unit. First remove the module; then, use two
hands to lift the enclosure. (72XXC356)
 Copyright IBM Corp. 1998 v

Attention Notices
An attention notice indicates the possibility of damage to a program, device, or system, or to data. The
following is a sample attention notice:
Attention: Do not operate the 7207 Tape Drive in a poor air-quality environment. If your environment
contains an excessive amount of particulates, contact your service representative for more information.
End of Life (EOL) Plan
This box is a purchased unit. Therefore, it is the sole responsibility of the purchaser to dispose of it in
accordance with local laws and regulations at the time of disposal.
This unit contains recyclable materials. The materials should be recycled where facilities are available and
according to local regulations. In some areas IBM may provide a product take-back program that ensures
proper handling of the product. Contact your IBM representative for more information.
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.
7207 Model 122 4GB External SLR5 Quarter-Inch Cartridge Tape Drive
Federal Communications Commission (FCC) Statement
Note: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
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 shielded and grounded cables and connectors must be used in order to meet FCC emission
limits. Proper cables and connectors are available from IBM authorized dealers. IBM is not responsible
for any radio or television interference caused by using other than recommended cables and connectors or
by unauthorized changes or modifications to this equipment. Unauthorized changes or modifications could
void the user's authority to operate the equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
vi 7207 Tape Drive Setup, Operator, and Service Guide

Responsible Party:
International Business Machines Corporation
Old Orchard Road
Armonk, NY 10504
Telephone: [phone]
Industry Canada Compliance Statement
This Class B digital apparatus meets the requirements of the Canadian Interference-Causing Equipment
Regulations.
Avis de conformité à la réglementation d'Industrie Canada
Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel
brouilleur du Canada.
European Community Compliance Statement
This product is in conformity with the protection requirements of EU 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.
A declaration of Conformity with the requirements of the Directive has been signed by IBM SEMEA S.p.A.,
Via Tolmezzo, 15, Milano, Italy.
This product satisfies the Class B limits of EN55022.
Japanese Voluntary Control Council for Interference (VCCI) Statement
This product is a Class B Information Technology Equipment and conforms to the standards set by the
Voluntary Control Council for Interference by Information Technology Equipment (VCCI). This product is
aimed to be used in a domestic environment. When used near a radio or TV receiver, it may become the
cause of radio interference. Read the instructions for correct handling.
Korean Government Ministry of Communication (MOC) Statement
Please note that this device has been approved for non-business purposes and may be used in any
environment including residential areas.
Trademarks
The following terms are trademarks of the IBM Corporation in the United States or other countries or both:
AIX
IBM
RS/6000
The following terms are trademarks of other companies:
CSA Canadian Standards Association
UL Underwriter’s Laboratories
Notices vii

viii 7207 Tape Drive Setup, Operator, and Service Guide

About This Guide
This guide describes how to install and use the 7207 Model 122 4GB External SLR5 Quarter-Inch
Cartridge Tape Drive. It contains the following chapters:
Chapter 1, “General Information,” describes the 7207 Tape Drive, gives the system requirement, and lists
hardware specifications.
Chapter 2, “Setting Up the 7207 Tape Drive,” tells how to install the 7207 Tape Drive.
Chapter 3, “Using the 7207 Tape Drive,” describes the operator controls and indicator lights on the 7207
Tape Drive. It also tells how to load and unload a tape cartridge, how to retension the tape, and how to
clean the tape drive.
Chapter 4, “Using the Media,” describes the type of tape cartridges to use in the 7207 Tape Drive, as well
as the compatibility of various data cartridges. It also tells how to handle the cartridges, how to set the
write-protect switch, and how to order additional cartridges.
Chapter 5, “Performing Service on the 7207 Tape Drive,” gives instructions about conducting a safety
inspection and provides the maintenance analysis procedures (MAPs) required to service the 7207 Tape
Drive.
Chapter 6, “Moving the 7207 Tape Drive,” tells how to move the 7207 Tape Drive after it has been
installed.
Chapter 7, “Parts List,” provides a list of the parts that are necessary to service the 7207 Tape Drive.
The appendix, “Power Cables,” provides power cable information for different countries.
Store this guide with your system manuals.
Related Publications
 External Devices Safety Information, SA26-7003, provides translations of danger and caution notices.

AIX System Management Guide: Operating System and Devices , SC23-2525, provides information
about how to manage the AIX operating system.
 Copyright IBM Corp. 1998 ix

x7207 Tape Drive Setup, Operator, and Service Guide

Chapter 1. General Information
The 7207 Model 122 4GB External SLR5 Quarter-Inch Cartridge Tape Drive
(referred to hereafter as the 7207-122 Tape Drive) is an external storage device
that connects to the IBM RS/6000 and provides additional data storage capability.
The 7207-122 Tape Drive includes hardware data compression, which enables
increased storage capacity and data rate.
The 7207-122 Tape Drive features:
Capacity of 4GB per cartridge (8GB at 2:1 data compression)1
Sustained data rate of 380000 bits per second (760000 bits per second with
2:1 compression)2
Figure 1 shows the front view of the 7207-122 Tape Drive.
Figure 1. Front View of the 7207 Model 122 4GB External SLR5 Quarter-Inch Cartridge
Tape Drive
The 7207-122 Tape Drive uses single-track linear recording (SLR5) tape drive
technology, and reads and writes to tape cartridges that are compatible with the
following recording standards defined by Quarter-Inch Cartridge Drive Standards,
Inc. (QIC):
A list of compatible tape cartridges and the specific recording standards to which
they are formatted is shown in “Data Cartridge Compatibility” on page 20.
The 7207-122 Tape Drive attaches to any system that uses a single-ended
interface which meets the following standards of the American National Standards
Institute (ANSI):
X3.131-1994, Small Computer System Interface-2 (SCSI-2)
X3T10/855D Revision 15A, Small Computer System Interface-3 (SCSI-3)
Parallel Interface
With the proper cables, you can attach the 7207-122 Tape Drive to a wide or
narrow SCSI bus (for a list of applicable cables, see Chapter 7, “Parts List” on
page 39). You do not need to acquire special device drivers. The 7207-122 Tape
Drive uses the native self-configuring AIX SCSI device driver.
QIC-4GB-DC (SLR5 Native Format)
QIC-2GB-DC
QIC-1000-DC
QIC-525-DC
QIC-150-DC
QIC-120-DC
11GB = one gigabyte or 1 000 000 000 bytes
21KB = one kilobyte or 1000 bytes
 Copyright IBM Corp. 1998 1

System Requirement
The system requirement for the 7207-122 Tape Drive is to use only a supported
RS/6000 processor or adapter, with an AIX operating system at level:
4.1.5 (with fixes as described in Authorized Program Analysis Report (APAR)
#IX69941)
4.2.0 (with fixes as described in APAR #IX69950)
4.2.1 or later
4.3.0 or later
For a list of supported processors and adapters, contact your IBM marketing
representative or business partner.
Specifications
Figure 2. Specifications for the 7207-122 Tape Drive
Physical Specifications
Width 250 mm (9.8 in.)
Depth 275 mm (10.8 in.)
Height 55 mm (2.2 in.)
Weight 3.4 kg (7 lb 8 oz)
Power Specifications
kVA 0.030 @ 120 V ac
V ac 100 to 125, or 200 to 240
Hertz 50 to 60 Hz
Btu Average (watts) 76 Btu/hr (22 watts)
Power Factor 0.3 to 0.6
Other Specifications
Maximum Altitude 2135 m (7000 ft)
Recommended Environment
Environmental Factor Operating Non-operating
Temperature 5 to 45°C
(41 to 113°F)
−40 to 60°C
(−40 to 140°F)
Relative Humidity
(noncondensing) 8 to 80% 10 to 90%
Wet Bulb Temperature 26°C
(79°F)
29°C
(84°F)
Note: The operating limits include media. The non-operating limits do not include
media. For media non-operating limits, see “Operating and Non-operating
Environments” on page 20.
27207 Tape Drive Setup, Operator, and Service Guide

Chapter 2. Setting Up the 7207 Tape Drive
This chapter provides step-by-step instructions on how to properly install the
7207-122 Tape Drive.
Note: If you need assistance with the installation, contact your trained service
personnel.
DANGER
To prevent a possible electrical shock when adding or removing any
devices to or from the system, ensure that the power cords for those
devices are unplugged before the signal cables are connected or
disconnected. If possible, disconnect all power cords from the
existing system before you add or remove a device. (72XXD203)
Before installing the 7207-122 Tape Drive, 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.
Attention: The 7207-122 Tape Drive 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 7207-122 Tape Drive.
To unpack the 7207-122 Tape Drive, simply remove the packing material from the
box it was shipped in.
Performing the Installation
To install the 7207-122 Tape Drive, complete the following steps.
Step 1. Using the Inventory Checklist
Make sure that you received the following items:
Power cable (for the appropriate cable see the appendix, “Power Cables,”
on page 41)
The External Devices Warranty Information (U.S., Canada, and Puerto Rico
only)
The 7207 Model 122 4GB External SLR5 Quarter-Inch Cartridge Tape Drive
Setup, Operator, and Service Guide (this guide)
The External Devices Safety Information manual
One of the following:
A system-to-device SCSI bus (signal) cable and a terminator (if the
7207-122 Tape Drive is the only device connected to the RS/6000)
A device-to-device SCSI bus (signal) cable (if the 7207-122 Tape Drive
connects to another SCSI device)
 Copyright IBM Corp. 1998 3

Media kit that includes:
SLR5-4GB data cartridge (conforms to the QIC-4GB-DC drive standard)
SLR5-4GBSL test cartridge
Cleaning cartridge
Step 2. Checking the Electrical Outlets
Make sure that the electrical outlets that you use are properly grounded.
Step 3. Running the Self Test
Run the self test to determine whether the 7207-122 Tape Drive is functioning
properly. To run the test:
1. If the 7207-122 Tape Drive is installed, remove it by performing steps 1-12
in Chapter 6, “Moving the 7207 Tape Drive” on page 37.
Note: Make sure that the SCSI cable and terminator are not attached to
the 7207-122 Tape Drive (or the self test may not function properly).
2. Set the SCSI address switch to 9 (see “Step 5. Setting the SCSI Address”
on page 6).
3. Attach the power cable to the 7207-122 Tape Drive, then plug it into an
electrical outlet. Make sure that the power to the tape drive is off.
4. Load the SLR5-4GBSL test cartridge into the 7207-122 Tape Drive (see
“Loading Tape Cartridges” on page 14).
Note: Use only the IBM test cartridge, part number 59H3661. Use of any
other test cartridge could cause erroneous test results or lengthen
the time needed to complete the test.
5. Press the 7207-122 Tape Drive power switch to turn on the power.
After approximately 5 minutes, the status light does one of the following:
Flashes green to indicate the completion of a successful self test. Unload the
test cartridge and press the 7207-122 Tape Drive power switch to turn off the
power. Store the test cartridge in a safe location (you may need it for future
diagnostics), then go to step “Step 4. Determining the SCSI Address” on
page 5.
Flashes red to indicate an error. Replace the 7207-122 Tape Drive.
47207 Tape Drive Setup, Operator, and Service Guide

Step 4. Determining the SCSI Address
The 7207-122 Tape Drive can only be set to SCSI addresses 0-7. (Addresses 8
and 9 are selectable options, but should not be used in normal operation or errors
will result; address 8 is invalid and address 9 starts the drive self test described in
the preceding step.)
Before you install the 7207-122 Tape Drive, you must find a SCSI address that is
not an address being used by another device. To find an unused SCSI address,
you must:
Identify the name and the port of the RS/6000 SCSI I/O controller that you want
to attach to
Identify the SCSI address of that SCSI I/O controller
Identify the SCSI addresses of other devices connected to that SCSI I/O
controller
Note: If you attach to a wide bus, SCSI addresses 0-15 are available but only 0-7
can be used as an address for this tape unit. Even though the 7207-122
Tape Drive uses only the range of addresses for a narrow bus, it is
designed to not impact the function of the other devices on the wide bus;
they still negotiate a wide attachment and run at appropriate data rates.
1. To identify the name and the port of an RS/6000 SCSI I/O controller that
you want to attach to, at the system prompt type lsdev -C | grep scsi and
press Enter. A list of controllers display in the following format. The names
appear in the first column (for example, scsið and scsi2). The ports appear
in the third column and in the fourth position (highlighted as follows):
Note: Column headings are for reference only; they do not appear on the
screen.
Column 1 Column 2 Column 3 Column 4
scsið Available ðð-ðð-ðS Standard SCSI I/O Controller
scsi2 Available ðð-ð2SCSI I/O Controller
Note the name and port of the SCSI I/O controller that you want to attach to
(for example, the scsi2 controller on port 2).
2. To determine the SCSI address of the SCSI I/O controller that you noted in
the previous step, type lsattr -El scsix | grep id (where x equals the
last character in the name of the SCSI I/O controller) and press Enter. The
address of the SCSI I/O controller displays in the following format:
id 7 Adapter card SCSI I True
Note the address of the SCSI I/O controller (in this case, 7).
Chapter 2. Setting Up 5

3. To identify the SCSI addresses used by all other devices, type
lsdev -Cs scsi and press Enter. A list of devices appears in the following
format. In the fourth position of the third column, locate all instances of the
port that you chose in step 1 on page 5. (The list may contain multiple
instances of a port. In the following example, for port 2 (identified in step 1
on page 5) there are three instances.) The addresses of the other SCSI
devices appear in the seventh position (highlighted in the example that
follows):
Column 1 Column 2 Column 3 Column 4
hdiskð Available ðð-ðð-ðS-ð,ð 2.ðGB SCSI Disk Drive
hdisk1 Available ðð-ð2-ð1-2,ð 4.5GB 16 Bit SCSI Disk Drive
hdisk2 Available ðð-ð2-ð1-3,ð SCSI Disk Drive
rmtð Available ðð-ð2-ð1-4,ð SCSI 8mm Tape Drive
For the port chosen in step 1 on page 5, note the addresses of the other
SCSI devices attached to the RS/6000 (in this case, for port 2, the
addresses are 2, 3, and 4).
4. Determine an unused SCSI address for the 7207-122 Tape Drive (in this
case, 0 1, 5, or 6, because 7 was used by the SCSI I/O controller and 2, 3,
and 4 are used by other devices).
Step 5. Setting the SCSI Address
The SCSI address is a unique address that identifies the 7207-122 Tape Drive to
your system unit. Use the SCSI address switch to set the SCSI address of the
7207-122 Tape Drive. The switch (.1/ in Figure 3) is located on the rear of the
7207 Tape Drive. Figure 3 also shows the two 68-pin, wide SCSI bus cable
connectors .2/, the cooling fan .3/, and the power cable connector .4/.
Note: Set the device at the highest available address. Do not exceed address 7,
and do not select a SCSI address that is already in use (refer to “Step 4.
Determining the SCSI Address” on page 5).
Figure 3. Rear View of the 7207-122 Tape Drive
To set the SCSI address, press the + or − push button to access the address that
you have previously determined in “Step 4. Determining the SCSI Address” on
page 5.
67207 Tape Drive Setup, Operator, and Service Guide

Step 6. Placing the 7207 Tape Drive
The 7207-122 Tape Drive can be located anywhere that is convenient to your
system unit. The only restrictions are the length of the power cord and the SCSI
cable. Recommended locations are:
In a clean, dirt-free environment
Away from the floor
In a horizontal position
Where the tape cartridge can be easily inserted
To place the 7207-122 Tape Drive:
1. Set the 7207-122 Tape Drive in the preferred location.
2. Connect the power cable to the 7207-122 Tape Drive. (Do not plug it into
the electrical outlet at this time.)
The external devices that attach to the system unit can be stacked. When stacking
devices, do not place more than 30 pounds on top of the 7207 Tape Drive.
Step 7. Performing a System Shutdown
Attention: Do not attach the 7207-122 Tape Drive to an RS/6000 system unit that
is powered on. This can damage the 7207 Tape Drive, the system unit, or both.
To perform a system shutdown of the RS/6000:
Note: Before doing a controlled shutdown of the system unit, notify other users
who may be using the system.
1. If it is on, do a controlled fast shutdown of the system unit by typing
shutdown -F from the system console. (You must have root authority to
perform the shutdown; see your system administrator.) Depending on your
system configuration, the shutdown may take several minutes.
2. When the message Halt Completed displays on the system console, turn
off the power to the system unit.
3. Turn off the power to all external devices connected to the system unit.
4. Unplug the power cables to all external devices from their electrical outlets.
5. Unplug the system unit power cable from the electrical outlet.
Chapter 2. Setting Up 7

Step 8. Connecting the SCSI Bus Cable
To connect the SCSI bus cable:
1. If installed, remove the connector covers.
2. On the rear of the 7207-122 Tape Drive (.1/ in Figure 4), attach the device
connector end of the SCSI bus cable .2/ to one of the SCSI connectors
.3/.
3. Make sure that the connector is fully engaged.
4. Secure the cable to the 7207-122 Tape Drive with the thumbscrews .4/
provided on the cable.
Figure 4. Connecting the SCSI Bus Cable to the 7207-122 Tape Drive. The view is from
the side.
5. Connect the other end of the SCSI bus cable as follows:
If the 7207-122 Tape Drive is the only device attached to the system,
connect the cable to the RS/6000 (see Figure 5 on page 9).
If the 7207-122 Tape Drive is part of a multiple-device configuration,
connect the cable to the next device (see Figure 6 on page 9).
If the 7207-122 Tape Drive is installed in the middle of a narrow bus,
two 68-pin-to-50-pin device-to-device cables will be required, one for
each device on either side of the 7207-122 Tape Drive.
87207 Tape Drive Setup, Operator, and Service Guide