IBM eserver pSeries 7311 D10, pSeries 7311 D20 Service Manual
pSeries 7311 Model D10 and Model D20
Service Guide
SA38-0627-00
ERserver
IBM
pSeries 7311 Model D10 and Model D20
Service Guide
SA38-0627-00
ER ser ver
IBM
First Edition (December 2002)
Before using this information and the product it supports, read the information in “Safety Notices” on page vii,
Appendix A, “Environmental Notices”, on page 201, and Appendix B, “Notices”, on page 203.
A reader’s comment form is provided at the back of this publication. If the form has been removed, address comments
to Information Development, Department H6DS-905-6C006, 11501 Burnet Road, Austin, Texas 78758-3493. To send
comments electronically, use this commercial internet address: aix6kpub@austin.ibm.com. Any information that you
supply may be used without incurring any obligation to you.
© International Business Machines Corporation, 2002. All rights reserved.
Note to U.S. Government Users -- Documentation related to restricted rights -- Use, duplication or disclosure is subject
to restrictions set forth is GSA ADP Schedule Contract with IBM Corp.
Contents
Safety Notices........................vii
Rack Safety Instructions .....................vii
Electrical Safety .......................viii
Laser Safety Information .....................ix
Laser Compliance ......................ix
Data Integrity and Verification ..................xi
About This Book ......................xiii
ISO 9000 .........................xiii
Accessing Information .....................xiii
Related Publications ......................xiii
Trademarks.........................xiv
Chapter 1. Reference Information .................1
pSeries 7311 Model D10 Overview .................1
Model D10 I/O Subsystem Features .................1
I/O Subsystem PCI-X Slot LED Definitions ..............3
D10 Power ........................4
Subsystem Positioning and Cabling ................6
D10 I/O Subsystem Locations ...................10
7311 Model D10 I/O Subsystem Front Locations............10
7311 Model D10 I/O Subsystem Rear Locations ............11
Model D10 I/O Backplane Locations................12
D10 I/O Subsystem PHB ...................13
D10 Location Codes ......................14
Physical Location Code Table ..................14
7311 Model D10 I/O Subsystem Location Code Table ..........15
pSeries 7311 Model D20 Overview .................16
Model D20 I/O Subsystem Features.................16
Model D20 PCI-X Slots ....................16
Model D20 Power ......................18
Model D20 Location Codes....................33
AIX and Physical Location Code Table ...............33
Model D20Location Code Table .................34
Powering the System On and Off..................36
Power-On Self-Test ......................36
Specifications ........................37
Model D10 Specifications ...................37
Model D20 Specifications ...................38
External AC Power Cables ....................39
Service Inspection Guide ....................40
Chapter 2. Diagnostics Overview .................41
Power and Attention LEDs ....................41
Component LEDs ......................41
Resetting the LEDs .....................41
iii
Checkpoints.........................41
FRU Isolation ........................42
Chapter 3. Maintenance Analysis Procedures (MAPs) ..........43
Chapter 4. Checkpoints ....................45
Chapter 5. Error Code to FRU Index ................47
Chapter 6. Using the Service Processor...............49
Chapter 7. Using System Management Services............51
Chapter 8. Removal and Replacement Procedures ...........53
Safety Considerations .....................53
Handling Static-Sensitive Devices .................54
Stopping the System ......................55
Starting the System ......................55
7311 Model D10 I/O Subsystem Removal and Replacement Procedures.....56
Model D10 FRU Replacement Procedure List ............56
D10 Service Position .....................57
D10 Operating Position ....................57
D10 Front Bezel ......................58
D10 Covers ........................59
D10 PCI Adapters......................61
Hot-Pluggable PCI Adapter...................63
PCI Hot-Plug Manager Access .................71
PCI Adapter or Blank Filler Removal From a Cassette Assembly ......74
Replacing an Adapter in a PCI Adapter Cassette ...........86
Short Adapter or Blank Filler Installation ..............90
Long Adapter Installation ...................106
D10Fan........................120
D10 RIO Cable ......................121
D10 RIO Bus Adapter ....................121
D10 I/O Backplane Assembly .................122
D10 Power Supply .....................123
7311 Model D20 I/O Subsystem Removal and Replacement Procedures ....124
Model D20 FRU Replacement Procedure List ............124
D20 Service Position ....................125
D20 Operating Position ...................126
D20 Service Access Cover ..................127
D20 Front Bezel ......................129
D20 Operator Panel.....................131
D20 Blowers .......................134
D20 Cooling Blowers Cable ..................137
D20 RIO Bus Adapter Assembly ................139
D20 PCI Adapters .....................142
D20 Hot-Plug Disk Drives ...................160
D20 Disk Drive Cage ....................165
D20 Disk Drive Backplane ..................167
iv Eserver pSeries 7311 Model D10 and Model D20 Service Guide
D20 Power Supplies ....................169
D20 Power Supply Bulkhead ..................172
D20 I/O Backplane .....................175
Chapter 9. Parts Information ..................179
7311 Model D10 I/O Subsystem..................180
D10 I/O Backplane and Cooling.................180
D10 Power and Cooling ...................182
D10 SPCN, RIO, and Rack Beacon Cables .............184
D10 Rack Mounting Enclosure .................185
Model D20 I/O Subsystem ...................186
D20 I/O Backplane and Cabling.................186
D20 PCI Slots ......................188
D20 Power, RIO ......................190
D20 Operator Panel.....................192
D20 Fans and Disk Drives ..................194
D20 Covers and Brackets ...................196
D20 RIO, SPCN, and Rack Beacon Cables .............197
Power Cables........................198
Appendix A. Environmental Notices................201
Product Recycling and Disposal..................201
Environmental Design .....................201
Acoustical Noise Emissions ...................201
pSeries 7311 Model D10 Declared Acoustical Noise Emissions ......201
pSeries 7311 Model D20 Declared Acoustical Noise Emissions ......202
Appendix B. Notices .....................203
Index ..........................205
Contents v
vi Eserver pSeries 7311 Model D10 and Model D20 Service Guide
Safety Notices
A
danger
notice indicates the presence of a hazard that has the potential of causing
death or serious personal injury. Danger notices appear on the following pages:
v viii
v 53
A
caution
notice indicates the presence of a hazard that has the potential of causing
moderate or minor personal injury. Caution notices appear on the following pages:
v viii
v viii
v ix
v ix
v 53
v 54
Note: For a translation of these notices, see
System Unit Safety Information
, order
number SA23-2652.
Rack Safety Instructions
v Do not install this unit in a rack where the internal rack ambient temperatures will
exceed 35 degrees C.
v Do not install this unit in a rack where the air flow is compromised. Any side, front or
back of the unit used for air flow through the unit must not be in direct contact with
the rack.
v Care should be taken to ensure that a hazardous condition is not created due to
uneven mechanical loading when installing this unit in a rack. If the rack has a
stabilizer it must be firmly attached before installing or removing this unit.
v Consideration should be given to the connection of the equipment to the supply
circuit so that overloading of circuits does not compromise the supply wiring or
overcurrent protection. To provide the correct power connection to the rack, refer to
the rating labels located on the equipment in the rack to determine the total power
requirement for the supply circuit.
v An electrical outlet that is not correctly wired could place hazardous voltage on the
metal parts of the system or the devices that attach to the system. It is the
responsibility of the customer to ensure that the outlet is correctly wired and
grounded to prevent an electrical shock.
vii
Electrical Safety
Observe the following safety instructions any time you are connecting or disconnecting
devices attached to the workstation.
In the system you are about to setup or service:
v The ac power interface connector is considered the main power disconnect device.
v This system has redundant power supply capabilities, meaning that it has the ability
to have two power supplies running simultaneously in the same system unit. When
instructed to disconnect the power source, ensure that all power cables have been
unplugged.
DANGER
An electrical outlet that is not correctly wired could place hazardous voltage
on metal parts of the system or the devices that attach to the system. It is the
responsibility of the customer to ensure that the outlet is correctly wired and
grounded to prevent an electrical shock.
Before installing or removing signal cables, ensure that the power cables for
the system unit and all attached devices are unplugged.
When adding or removing any additional devices to or from the system,
ensure that the power cables for those devices are unplugged before the
signal cables are connected. If possible, disconnect all power cables from the
existing system before you add a device.
Use one hand, when possible, to connect or disconnect signal cables to
prevent a possible shock from touching two surfaces with different electrical
potentials.
During an electrical storm, do not connect cables for display stations, printers,
telephones, or station protectors for communications lines.
D05
CAUTION:
This product is equipped with a three-wire power cable and plug for the user’s
safety. Use this power cable with a properly grounded electrical outlet to avoid
electrical shock.
C01
CAUTION:
This unit has more than one power supply cord. To reduce the risk of electrical
shock, disconnect two power supply cords before servicing.
C21
viii Eserver pSeries 7311 Model D10 and Model D20 Service Guide
Laser Safety Information
CAUTION:
This product may contain a CD-ROM, DVD-ROM, or laser module on a PCI card,
which are class 1 laser products.
C30
Laser Compliance
All lasers are certified in the U.S. to conform to the requirements of DHHS 21 CFR
Subchapter J for class 1 laser products. Outside the U.S., they are certified to be in
compliance with the IEC 825 (first edition 1984) as a class 1 laser product. Consult the
label on each part for laser certification numbers and approval information.
CAUTION:
All IBM laser modules are designed so that there is never any human access to
laser radiation above a class 1 level during normal operation, user maintenance,
or prescribed service conditions. Data processing environments can contain
equipment transmitting on system links with laser modules that operate at
greater than class 1 power levels. For this reason, never look into the end of an
optical fiber cable or open receptacle. Only trained service personnel should
perform the inspection or repair of optical fiber cable assemblies and receptacles.
C25, C26
Safety Notices ix
x Eserver pSeries 7311 Model D10 and Model D20 Service Guide
Data Integrity and Verification
IBM computer systems contain mechanisms designed to reduce the possibility of
undetected data corruption or loss. This risk, however, cannot be eliminated. Users who
experience unplanned outages, system failures, power fluctuations or outages, or
component failures must verify the accuracy of operations performed and data saved or
transmitted by the system at or near the time of the outage or failure. In addition, users
must establish procedures to ensure that there is independent data verification before
relying on such data in sensitive or critical operations. Users should periodically check
the IBM support websites for updated information and fixes applicable to the system and
related software.
xi
xii Eserver pSeries 7311 Model D10 and Model D20 Service Guide
About This Book
This book provides maintenance information that is specific to the 7311 Model D10 and
Model D20 I/O subsystems, as well as adapters and attached devices that do not have
their own service information. In this book, the I/O subsystems are referred to as the
Model D10 or the Model D20 I/O subsystem.
MAPs that are common to all systems are contained in the
RS/6000
Eserver
pSeries
Diagnostic Information for Multiple Bus Systems
.
This book is used by the service representative to repair system failures. This book
assumes that the service representative has had training on the processor subsystem
to which an I/O subsystem is attached, in addition to training on the I/O subsystem
drawer.
ISO 9000
ISO 9000 registered quality systems were used in the development and manufacturing
of this product.
Accessing Information
Documentation for the IBM Eserver pSeries is available online. Visit the IBM Eserver
pSeries Information Center at
http://publib16.boulder.ibm.com/pseries/en_US/infocenter/base.
v To access the pSeries publications, click Hardware documentation.
v To view information about the accessibility features of Eserver pSeries hardware
and the AIX operating system, click AIX and pSeries accessibility.
Related Publications
The following publications provide additional information about your system:
v The
D10 I/O Drawer Installation Guide
, order number SA23-1295, contains
information on how to install the Model D10 I/O subsystem.
v The
D20 I/O Drawer Installation Guide
, order number SA23-1296, contains
information on how to install the Model D20 I/O subsystem.
v The Eserver
pSeries 630 Model 6C4 and Model 6E4 User’s Guide
, order number
SA38-0606, contains information to help users use the system, use the service aids,
and solve minor problems.
v The
RS/6000
Eserver
pSeries Diagnostic Information for Multiple Bus Systems
,
order number SA38-0509, contains diagnostic information, service request numbers
(SRNs), and failing function codes (FFCs).
v The
RS/6000
Eserver
pSeries Adapters, Devices, and Cable Information for
Multiple Bus Systems
, order number SA38-0516, contains information about
adapters, devices, and cables for your system. This manual is intended to
xiii
supplement the service information found in the
RS/6000
Eserver
pSeries
Diagnostic Information for Multiple Bus Systems
.
v The
Site and Hardware Planning Guide
, order number SA38-0508, contains
information to help you plan your installation.
v The
System Unit Safety Information
, order number SA23-2652, contains translations
of safety information used throughout this book.
v The
PCI Adapter Placement Reference
, order number SA38-0538, contains
information regarding slot restrictions for adapters that can be used in this system.
Trademarks
The following terms are trademarks of International Business Machines Corporation in
the United States, other countries, or both:
v AIX
v Electronic Service Agent
v Eserver
v IBM
v LANstreamer
v PowerPC
v pSeries
v RS/6000
Other company, product, and service names may be trademarks or service marks of
others.
xiv Eserver pSeries 7311 Model D10 and Model D20 Service Guide
Chapter 1. Reference Information
This chapter provides reference information for the Model D10 and Model D20 I/O
subsystems.
pSeries 7311 Model D10 Overview
The Model D10 is a 19-inch, rack-mountable I/O subsystem that is attached to a
processor subsystem drawer to extend the system’s capacity for I/O adapters. The I/O
drawer includes redundant concurrently maintainable power and cooling.
Five PCI-X slots and one PCI slot are available for PCI adapters. PCI adapters are
installed through the rear of the I/O subsystem using PCI adapter cassettes. Because
the PCI slots support hot-pluggable adapters, the I/O subsystem can have adapters
installed without turning off power or removing covers. The Model D10 is 4 EIA units
high and two Model D10s can be installed side-by-side in a 19-inch rack enclosure.
Model D10 I/O Subsystem Features
The following figure shows the I/O subsystem from the front.
2
3
1
5
4
1 Cooling Fan 3 Power Supply 1, Power Supply
2
2 Power cord channel 4 Power cord receptacles
1
The following figure shows the I/O subsystem from the rear.
1
23 456
1
23
4
56
78
9
10
1 PCI adapter slot 1 6 PCI-X adapter slot 6
2 PCI-X adapter slot 2 7 RIO bus adapter card
Upper connector 0
Lower connector 1
3 PCI-X adapter slot 3 8 SPCN connector card
Upper connector J15
Lower connector J16
4 PCI-X adapter slot 4 9 Rack beacon connector
5 PCI-X adapter slot 5 10 Power cord channel
D10 Operator Indicators
v LED indicators visible on each PCI adapter cassette
v LED indicators on the I/O subsystem backplane
v Attention/Identify LEDs for power supplies and fans
D10 PCI-X Slots
The Model D10 has six PCI adapter slots. Five PCI-X slots and one PCI slot. Adapters
are installed and removed using a PCI adapter cassette which allows adapters to be
installed without turning off the power or opening the I/O subsystem covers.
The slots are numbered on the rear of the chassis from left to right 1 through 6. PCI
adapters are installed using an adapter cassette. The adapter cassette shows two LEDs
for each adapter. There is a green power indicator LED (upper) and an amber
fault/identify LED (lower). Slot 1 is a 5V PCI slot. Slots 2 through 6 are 3.3V PCI-X.
2 Eserver pSeries 7311 Model D10 and Model D20 Service Guide
I/O Subsystem PCI-X Slot LED Definitions
The green LED (viewed on the rear of the PCI adapter cassette when installed) is used
to indicate the state of the PCI slot during removal and replacement of an adapter.
3
2
1
PCI LED (Green) Indication PCI Slot Status Definition
Off Off Slot power is Off. it is safe to
remove or replace adapters.
On (not flashing) On Slot power is On. Do not
remove or replace adapters
Flashing slowly (one flash per
second)
Indicates slot has been
identified by the software. Do
not remove or replace adapters
at this time.
Flashing rapidly (six to eight
flashes per second)
Indicates slot is ready
removing or replacing an
adapter.
Chapter 1. Reference Information
3
D10 Power
The following figure shows a processor subsystem and two I/O subsystems from the
front. Each unit has two power supplies and two power cords for redundancy. Connect
the power cords from one side of the system to one power distribution bus in the rack.
Connect the power cords from the other side of the system to a different power
distribution bus in the rack. A separate branch power line for each side of the rack must
be utilized to ensure that the systems in a rack keep running if power is interrupted.
1
1
2
1
3
1 Power supplies, power
receptacles
3 One 7038 Model 6M2
processor subsystem
2 Two Model D10 I/O
subsystems mounted
side-by-side.
Model D10 I/O subsystem has two power supplies. Either power supply is capable of
providing the necessary voltages and currents, independent of the other power supply.
Each power supply provides 5V dc, 3.3V dc, -12V dc, and 5V dc standby. The power
supplies are hot-pluggable and may be changed one at a time while the system is
operational.
4 Eserver pSeries 7311 Model D10 and Model D20 Service Guide
The following table describes power supply LED indicators that are available on the
Model D10.
Status of LED Power Supply LED
Off Power Source not connected
Blinking green LED System power source connected, but power is
not turned on
Blinking green LED, visibly begins to blink
faster after the power button has been pressed.
System power connected, the power on button
has been pressed and power-on initiated
Solid (not blinking) green LED, (There is
approximately a 30 second transition period
from the time the power on button is pressed to
the time the power LED is on solid.)
System power connected and turned on
The following figure shows a processor subsystem and two I/O subsystems from the
rear.
1 Model D10 I/O subsystem 3 Processor subsystem power
supplies, power receptacles
2 7038 Model 6M2 processor
subsystem
4 I/O backplane power (green)
and fault/identify (amber) LEDs
Chapter 1. Reference Information
5
D10 Cooling
Fans mounted inside each I/O subsystem power supply and an additional fan mounted
on the front of the subsystem provide cooling. The power supplies and the fan can be
removed and replaced with the power turned on as long as only one is removed from
the I/O subsystem at a time.
D10 Input/Output Ports
The connector ports on the rear of the Model D10 I/O subsystem are used to connect
the RIO cables, the SPCN cables, and the rack-beacon LED.
Subsystem Positioning and Cabling
The I/O subsystem can be installed in a standard 19-inch EIA rack in any location. The
cables that connect the subsystems allow some flexibility in drawer placement, but the
I/O subsystems should be located above the connected processor subsystem in the
same rack.
Up to eight Model D10 I/O subsystems can be connected to a processor subsystem.
Each I/O subsystem is connected to the processor subsystem using a system power
control network (SPCN) cable loop and a remote I/O (RIO) cable loop. One SPCN
cable loop is needed to connect the I/O subsystems to one processor subsystem. Up to
four I/O subsystems are connected to the same processor subsystem using a single
RIO loop.
SPCN Cabling
I/O subsystem SPCN cables are connected to the processor subsystem unit using a
loop configuration. The SPCN cables are connected in a loop so that the system has
two paths to each I/O subsystem. A total of eight I/O subsystems are supported on one
SPCN loop.
One I/O Subsystem, Two I/O Subsystems:
The illustration on the left shows one I/O
subsystem connected to the processor subsystem. The illustration on the right shows
two I/O subsystems connected to the processor subsystem using one SPCN loop.
0
1
1
J15
J16
0
1
J15
J16
J15
J16
0
6 Eserver pSeries 7311 Model D10 and Model D20 Service Guide
Four I/O Subsystems, Eight I/O Subsystems:
The illustration on the left shows four
I/O subsystems connected to the processor subsystem using one SPCN loop. The
illustration on the right shows eight I/O subsystems connected to the processor
subsystem using one SPCN loop.
1
J15
J16
J15
J16
J15
J16
J15
J16
J15
J16
J15
J16
J15
J15
J15
J16
J16
J16
0
1
J15
J16
J15
J16
J15
J16
0
Chapter 1. Reference Information 7
RIO Cabling
I/O subsystems are connected to the processor subsystem through remote I/O (RIO)
cable loops. The cable loops are connected to ports that are available from the rear of
the processor subsystem. The RIO cables are connected in loops so that the system
has two paths to each I/O subsystem.
Up to four I/O subsystems can be connected to a system using one RIO loop. The
system can have up to four RIO loops. Eight I/O drawers can be connected to the
processor subsystem in a variety of cabling configurations. For optimum performance,
connect the RIO loops in a configuration that spreads multiple I/O drawers across as
many RIO loops as possible. For valid cabling examples, see the following illustrations.
One I/O Subsystem, Two I/O Subsystems:
The illustration on the left shows one I/O
subsystem drawer connected to the system unit. The illustration on the right shows two
I/O subsystem drawers connected to the system unit using one RIO loop.
0
1
0
1
0
1
1
0
2
1
Three I/O Subsystems, Four I/O Subsystems:
The illustration on the left figure
shows three I/O subsystem drawers connected to the system unit using one RIO loop.
The illustration on the right shows four I/O subsystem drawers connected to the system
unit using one RIO loop.
0
0
1
1
0
0
0
0
0
0
0
1
1
1
1
1
1
1
8 Eserver pSeries 7311 Model D10 and Model D20 Service Guide
Eight I/O Subsystems, Two RIO Loops:
The following figure shows eight I/O
subsystem drawers connected to the system unit using two RIO loops.
0
0
0
0
1
1
1
1
0
1
0
0
0
0
1
1
1
1
Chapter 1. Reference Information 9
D10 I/O Subsystem Locations
This system uses physical location codes to provide mapping of the failing field
replaceable units. The location codes are produced by the processor subsystem’s
firmware and AIX. For information about how to read a location code, see the service
guide for the processor subsystem to which your I/O subsystem is connected.
7311 Model D10 I/O Subsystem Front Locations
1
2
3
4
1 Cooling fan 3 Power Supply 2
U0.
dd
-V2
2 Power cord channel 4 Power Supply 1
U0.
dd
-V1
10 Eserver pSeries 7311 Model D10 and Model D20 Service Guide
7311 Model D10 I/O Subsystem Rear Locations
1
23 456
1
23
4
56
78
9
10
1 PCI adapter slot 1
U0.
dd
-P1-I1
6 PCI-X adapter slot 6
U0.dd-P1-I6
2 PCI-X adapter slot 2
U0.
dd
-P1-I2
7 RIO bus adapter card
U0.dd-P1.1
3 PCI-X adapter slot 3
U0.
dd
-P1-I3
8 SPCN connector card
U0.dd-P1 (part of the I/O
backplane FRU)
4 PCI-X adapter slot 4
U0.
dd
-P1-I4
9 Rack beacon connector
5 PCI-X adapter slot 5
U0.
dd
-P1-I5
10 Power cord channel
Note: In the preceding table,ddis equal to the number assigned to each I/O
subsystem by the connected processor subsystem.
Chapter 1. Reference Information 11
Model D10 I/O Backplane Locations
The following illustration of the I/O backplane identifies the primary connectors used in
your subsystem.
1
2
3
4
5
6
7
8
9
10
11
12
1 PCI adapter connector 1 7 SPCN connector
2 PCI-X adapter connector 2 8 VPD module
3 PCI-X adapter connector 3 9 VPD module pin 1 orientation
4 PCI-X adapter connector 4 10 RIO bus adapter connector
5 PCI-X adapter connector 5 11 Fan connector
6 PCI-X Adapter connector 6 12 Power supply connectors
12 Eserver pSeries 7311 Model D10 and Model D20 Service Guide
D10 I/O Subsystem PHB
Each 7311 Model D10 I/O Subsystem has two PHBs through which the PCI slots are
connected.
1
23 456
Slot PHB Slot Characteristics
1 1 64-bit 5V, 33 MHz
2 1 64-bit 3.3V, 133 MHz
3 1 64-bit 3.3V, 133 MHz
4 2 64-bit 3.3V, 133 MHz
5 2 64-bit 3.3V, 133 MHz
6 2 64-bit 3.3V, 133 MHz
Chapter 1. Reference Information
13
D10 Location Codes
This system (processor subsystem and attached I/O subsystems) use physical location
codes in conjunction with AIX location codes to provide mapping of failing field
replaceable unit (FRU). The location codes are produced by the processor subsystem’s
firmware and AIX. For information about how to read a location code, see the service
guide for the processor subsystem to which your I/O subsystem is connected.
Physical Location Code Table
This section covers the AIX and Physical Location Code tables for the Model D10.
The tables in this section contain the location codes for I/O subsystems when they are
attached to the system unit. In the tables, the location code for the I/O subsystem
number is represented by
dd
. The first time that an installed system is powered on, the
I/O subsystems are numbered. For example, if a system is first powered on with eight
I/O subsystems connected, the
dd
value for the subsystems should be numbered from
2 through 9.
Note: If the system was powered on with I/O subsystems connected before delivery to
the customer, the I/O subsystem location codes for the connected I/O
subsystems is permanently set.
If at a later time, an I/O subsystem is removed from the system and a different I/O
subsystem is substituted, the substitute is assigned the next higher number available for
its value of
dd
, which in the earlier example, is 10. If the original I/O subsystem is
reinstalled in the system configuration, the system uses the original
dd
value for the I/O
subsystem.
To keep the system from renumbering the I/O drawer when an I/O backplane is
replaced, the VPD module from the old I/O backplane must be moved over to the new
I/O backplane.
The following diagram defines each part of a location code.
Ux.dd-xx-yy
||||
||||
|||yyThis code is used for the next component (yy, yy, yy, ...)
| | xx This code is used for the next component (Px, Fx, Vx, ...)
| dd This code is the location code for the I/O drawer (2 to 63)
Ux This code normally identifies the rack in which a drawer is installed.
The x will always be zero (0) for this system.
14 Eserver pSeries 7311 Model D10 and Model D20 Service Guide
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