IBM S85 pSeries 680, Enterprise Server S80, pSeries 680 S85 Service Manual
Enterprise Server S80
pSeries 680 Model S85
Service Gui de
SA38-0558-01
No Graphic to be printed on front cover.
Delete this note before printing.
Book trim size is 7 3/8 x 9 inches
Front Cover is 10pt. Carolina stock or equivalent C1S (coated one side)
Note to Printer:
Enterprise Server S80
pSeries 680 Model S85
Service Gui de
SA38-0558-01
Second Edition (November 2000)
Before using this information and the product it supports, read the information in “Safety Notices” on page xiii,
“Appendix A. Environmental Notices” on page 591, and “Appendix B. Notices” on page 593.
© Copyright International Business Machines Corporation 1999, 2000. All rights reserved.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.
Contents
Safety Notices .......................xiii
Rack Safety Instructions.....................xiii
ElectricalSafety.......................xv
Laser Safety Information ....................xvi
Data Integrity and Verification ..................xvii
About This Book ......................xix
ISO 9000 .........................xix
OnlinePublications......................xix
RelatedPublications......................xix
Trademarks .........................xx
Chapter 1. Reference Information .................1
Models S80 and S85 Overview ...................1
Models S80 and S85 Data Flow ..................2
Powering the System On and Off ..................3
Console Strategy .......................3
Power-On Self-Test.......................4
POST Indicators ........................4
POST Keys .........................4
Numerical1Key.......................5
Numerical5Key.......................5
Numerical6Key.......................5
Numerical8Key.......................5
Models S80 and S85 Locations...................6
System and I/O Rack Configurations ................7
Basic Configuration with H50 and H70 Sharing the I/O Rack........10
System with Two I/O Drawers and H50 and H70 Sharing the I/O Rack ....12
System with One I/O Drawer, and Two H50 and H70s Sharing the I/O Rack 14
System Rack Locations ....................16
System Rack Locations Front ..................17
System Rack Locations Rear ..................18
I/O Rack Front Locations ...................19
I/O Rack Rear Locations ...................20
I/O Drawer Locations ......................21
10 EIA-Unit I/O Drawer Front View ................21
10 EIA-Unit I/O Drawer Rear View ................22
10 EIA-Unit I/O Drawer I/O Board Locations .............24
Service Processor Card Locations ................25
Fan Monitor Control (FMC) Card Locations (10 EIA-Unit I/O Drawer) .....26
Power Distribution Board Locations ................26
System Memory .......................27
Memory Locations and Ordering Rules ................27
System Rack Operator Panel ...................29
I/O Drawer Indicator Panel ....................30
10 EIA-Unit I/O Drawer Indicator Panel ...............30
© Copyright IBM Corp. 1999, 2000 iii
Cabling the System Rack and I/O Rack ...............31
Connecting JTAG and Operator Panel Cables ............32
Connecting RIO and SPCN Cables ................32
Models S80 and S85 Power Overview ................38
System Rack Power .....................38
I/O Rack Power ......................38
Models S80 and S85 Cabling ...................40
I/O Drawer Cabling .....................41
SCSI IDs and Bay Locations ..................42
Location Codes .......................44
Physical Location Codes ...................44
Location Code Format ....................44
AIX Location Codes .....................45
AIX and Physical Location Code Reference Tables ............48
System Rack .......................48
I/O Drawer 0 Locations ....................53
I/O Drawer 1 Locations ....................57
I/O Drawer 2 Locations ....................60
I/O Drawer 3 Locations ....................63
SCSI Device Locations ....................66
Specifications ........................67
Models S80 and S85 System Rack ................67
NoiseEmissionNotes....................71
External AC Power Cables ....................71
Service Inspection Guide ....................72
Chapter 2. Introduction to Diagnostics ...............73
Maintenance Analysis Procedures (MAPs) ...............73
Error Codes .........................74
Displaying and Using SRCs ..................74
IPL Checkpoints and Error Codes .................75
FRUIsolation........................75
Electronic Service Agent ....................76
Using the Service Processor and Electronic Service Agent ........76
Chapter 3. Maintenance Analysis Procedures (MAPs) ..........79
EntryMAP.........................79
QuickEntryMAP.......................80
Quick Entry MAP Table of Contents ................80
MAP 1020: Problem Determination .................84
Purpose of This MAP.....................84
Step 1020-1 ........................85
Step 1020-2 ........................86
Step 1020-3 ........................87
Step 1020-4 ........................87
MAP 1520: Power .......................88
Cannot Power On System Rack (No Error Code) ...........90
Cannot Power On I/O Rack (No Error Code) .............95
I/O Rack Becomes Powered On, But A Rack-Mounted Unit Does Not Become
Powered On .......................97
iv Service Guide
System Rack, I/O Rack, or Rack-Mounted Unit Cannot Be Powered Off . . . 100
The SRC Table Directed You Here and the SRC is 1xxx1200 .......102
The SRC Table Directed You Here and the SRC is 1xxx120y or 1xxx140y 105
Regulator Problem Isolation ..................110
Power Good Problem Isolation .................112
ACBoxProblemIsolation...................114
MAP 1540: Minimum Configuration .................117
Step 1540-1 .......................118
Step 1540-2 .......................118
Step 1540-3 .......................119
Step 1540-4 .......................120
Step 1540-5 .......................120
Step 1540-6 .......................120
Step 1540-7 .......................121
Step 1540-8 .......................121
Step 1540-9 .......................122
Step 1540-10 .......................122
Step 1540-11 .......................123
Step 1540-12 .......................123
Step 1540-13 .......................124
Step 1540-14 .......................124
Step 1540-15 .......................124
Step 1540-16 .......................124
Step 1540-17 .......................125
Step 1540-18 .......................125
Step 1540-19 .......................125
Step 1540-20 .......................126
Step 1540-21 .......................126
Step 1540-22 .......................126
Step 1540-23 .......................128
Step 1540-24 .......................128
Step 1540-25 .......................128
Step 1540-26 .......................128
Step 1540-26a ......................129
Step 1540-27 .......................129
Step 1540-28 .......................129
Step 1540-29 .......................129
Step 1540-30 .......................129
Step 1540-31 .......................129
Step 1540-32 .......................130
Step 1540-33 .......................130
Step 1540-34 .......................130
Step 1540-35 .......................131
Step 1540-36 .......................131
Step 1540-37 .......................131
Step 1540-38 .......................132
Step 1540-39 .......................132
Step 1540-40 .......................133
Chapter 4. Checkpoints ....................135
Contents v
IPLFlow .........................135
System Processor Checkpoints .................138
Service Processor Checkpoints .................140
Firmware Checkpoints ....................142
Boot Problems ......................155
Chapter 5. Error Code to FRU Index ...............157
Firmware/POST Error Codes ...................159
Service Processor Error Codes .................175
Unit Reference Codes .....................185
(0000) Operator Panel Reference Codes ..............187
(1xxx) System Power Control Network (SPCN) Reference Codes......189
(A1xx, B1xx) Service processor Reference Codes ...........216
(B006) Common Firmware Reference Codes ............218
Processor Reference Codes ...................220
(B4xx) System Processor Reference Codes .............220
Bus SRN to FRU Reference Table .................440
Chapter 6. Loading the System Diagnostics In Service Mode .......445
Default Boot List and Service Mode Bootlist ..............446
Chapter 7. Service Processor Menus ...............447
Service Processor Menus ....................448
Accessing Service Processor Menus Locally ............448
Accessing the Service Processor Menus Remotely ..........448
Saving and Restoring Service Processor Settings ...........449
Returning to Service Processor Menus ..............449
MenuInactivity......................449
General User Menus .....................450
Privileged User Menus .....................451
MainMenu........................451
Service Processor Setup Menu .................453
Passwords ........................453
System Power Control Menu ..................456
System Information Menu ...................457
Language Selection Menu ..................459
Call-In/Call-Out Setup Menu ..................460
Modem Configuration Menu ..................461
SerialPortSelectionMenu..................462
Serial Port Speed Setup Menu .................462
Telephone Number Setup Menu.................463
Call-OutPolicySetupMenu..................464
Customer Account Setup Menu .................465
Reboot/Restart Policy Setup Menu ................466
Boot Mode Menu .....................467
Service Processor Procedures in Service Mode ............468
Service Processor Functions ...................469
System Power-On Methods ...................470
Service Processor Call-In Security .................471
Service Processor Reboot/Restart Recovery .............471
vi Service Guide
Boot (IPL) Speed .....................471
Failure During Boot Process ..................471
Failure During Normal System Operation..............471
Service Processor Reboot/Restart Policy Controls...........472
Configuring and Deconfiguring Processors ..............473
Processor Deconfiguration During Boot ..............473
Service Processor System Monitoring - Surveillance ...........474
System Firmware Surveillance .................474
Operating System Surveillance .................474
Call-Out(Call-Home).....................475
Console Mirroring ......................476
System Configuration ....................476
Service Processor Error Logs ..................476
System POST Errors .....................477
LCDProgressIndicatorLog...................478
Chapter 8. System Management Services..............479
Text-Based System Management Services ..............479
Password Utilities .....................480
DisplayErrorLog .....................481
Remote Initial Program Load Setup ...............482
SCSI Utilities .......................485
Select Console ......................485
Multiboot ........................486
Select Language ......................489
OKPrompt........................489
Exiting System Management Services...............489
Chapter 9. Removal and Replacement Procedures ..........491
Handling Static-Sensitive Devices .................491
Powering Off and Powering On the System ..............492
Powering Off the System ...................492
Powering On the System ...................493
Hot-Swappable FRUs .....................493
System Rack Removal and Replacement Procedures ..........493
Fast Power Up Feature ...................494
Covers .........................494
ACBox.........................495
Hot-Swappable Front Blowers .................495
Hot-Swappable Rear Blowers .................496
ElectronicCards......................496
Operator Panel ......................497
Operator Panel Battery....................498
Operator Panel Cable (Op-panel to SP Cable) ............499
Hot-Swappable Bulk Power Supply................500
Bulk Power Subframe ....................501
Programmable Power Regulators ................502
SPCN Card .......................502
System Backplane Assembly ..................503
Rear Cage ........................505
Contents vii
Dual Line Cord .......................505
Removal ........................505
Replacement .......................506
I/O Rack Removal and Replacement Procedures ............507
Front Door ........................507
Installing a 10 EIA-Unit I/O Drawer into an I/O rack ..........507
Install the 10 EIA-Unit I/O Drawer ................510
Service Position ......................512
Operating Position .....................512
10 EIA-Unit I/O Drawer Removal and Replacement Procedures .......513
I/OTray.........................513
Hot-Swappable Blower Assembly ................514
Power Supply Test Switch Procedure ...............515
Hot-Swappable Power Supplies and Power Supply Fan Assemblies .....516
FanMonitorControl(FMC)Card................518
Power Distribution Board Assembly ...............519
Media Devices (CD-ROM Drive, Tape Drive, Diskette Drive) .......520
Hot-Swappable Disk Drives ..................521
SCSI Backplane ......................527
Drawer Indicator Panel Assembly ................529
Service Processor Card ...................530
Adapters ........................532
I/O Planar ........................532
Bulkhead Card ......................533
Chapter 10. Models S80 and S85 Parts...............535
Part-Name to Part-Number Index .................536
System Rack Parts ......................540
Front, Rear, and Top Covers ..................540
Internal Shields (Front and Rear) ................542
Operator Panel, Brackets, and Covers (Front View) ..........544
Operator Panel Assembly ...................546
Bulk Power Supplies and Front Blowers (Front View)..........548
AC Box Assembly and Rear Blowers (Rear View) ...........550
Front Electronics Cage and System Backplane Assembly ........552
Rear Electronics Cage ....................554
ElectronicCards......................556
Power Subframe (Rear View, 1 of 3) ...............558
Power Subframe (Rear View, 2 of 3) ...............560
Power Subframe (3 of 3) ...................562
I/O Drawer Parts .......................564
10 EIA Unit I/O Drawer Parts..................564
10 EIA-Unit I/O Drawer Power Cables...............566
I/O Planar to Bulkhead Cabling 10 EIA-Unit Drawers ..........568
SCSI Signal Cabling 10 EIA-Unit I/O Drawer ............570
I/O Rack Parts .......................572
I/O Rack Covers ......................572
I/O Rack Labels ......................574
Rails and Front Bezels ....................576
Power Distribution Bus ....................578
viii Service Guide
Leveling Feet and Bolt Down Hardware ..............580
Accessory Electrical Outlet Mounting Plates .............582
Accessories ........................584
Power Cables .......................584
Keyboards and Mouse ....................586
Keyboards and Mouse (Black) .................588
Appendix A. Environmental Notices................591
Product Recycling and Disposal ..................591
Environmental Design .....................591
UnitEmissions.......................591
Appendix B. Notices .....................593
Appendix C. Operator Panel Function Codes ............595
System Rack Operator Panel ..................595
Function Code Table .....................596
Operator Panel Function Code Descriptions ..............598
Values for IPL Types and Speeds ................598
Function 01 - Display Selected IPL Type, Mode and Speed .......599
Function 02 - Select IPL Type, Mode and Speed ...........599
Function 03 - Start IPL ....................600
Function 04 - Lamp Test ...................600
Function 05 - SPCN (System Power Control Network) Informational SRC . . . 600
Function 07 - Restore System Power and Perform Concurrent Maintenance
Repair ........................601
Function 08 - Fast Power Off..................603
Functions 09 to 10 - Reserved .................603
Functions 11 to 19 - System Reference Code ............603
Extended Operator Panel Functions ................604
Function 22 - AIX Storage Dump ................604
Functions 25 and 26 - Switches 1 and 2 ..............604
Restricted Panel Functions ...................604
Using Subfunctions .....................605
Function 50 - System Processor Stop ...............605
Function 51 - System Processor Status ..............605
Function 52 - System Processor Start ...............605
Function 53 - Path Switch...................605
Low-Level Debug (LLD) Panel Functions ...............606
Function 55 - Display Service Processor Log Buffer Type B .......606
Function 56 - Display Service Processor Code Area Type B .......606
Function 58 - Display IPL Parameter Area .............606
Function 59 .......................606
Function 60 .......................606
Function 61 .......................606
Function 62 - Display Service Processor Control Storage ........607
Function 63 - System Status SRC Trace ..............607
Function 64 - Diagnostic Status SRC Trace .............607
Appendix D. Service Processor Setup and Test ...........609
Contents ix
Service Processor Setup Checklist .................609
Testing the Service Processor Setup ................610
Call-In .........................610
Call-Out.........................610
SerialPortConfiguration...................611
Appendix E. System Vital Product Data ..............613
Appendix F. Firmware Update Procedures .............615
Determining the Firmware Levels .................615
Obtaining the Firmware Update Package...............616
Downloading Firmware Updates..................617
Appendix G. Modem Configurations ...............619
Sample Modem Configuration Files ................619
Generic Modem Configuration Files ...............619
Specfic Modem Configuration Files................619
ConfigurationFileSelection...................619
Examples For Using the Generic Sample Modem Configuration Files ....621
Customizing the Modem Configuration Files.............621
IBM 7852-400 DIP Switch Settings ................621
TerminalEmulators.....................622
Recovery Procedures ....................622
Seamless Transfer of a Modem Session ...............623
Recovery Strategy .....................624
Prevention Strategy .....................624
Modem Configuration Samples ..................624
Sample File modem_z.cfg...................624
Sample File modem_z0.cfg ..................627
Sample File modem_f.cfg ...................629
Sample File modem_f0.cfg ..................632
Sample File modem_f1.cfg ..................634
Sample File modem_m0.cfg ..................637
Sample File modem_m1.cfg ..................639
Appendix H. Interpreting Firmware Error Codes ...........643
Appendix I. High-Availability Cabling ...............649
Configuring the HA - S80 or S85 Advanced Cluster Server System With No Single
PointsofFailure......................649
Base HA - S80 or S85 Advanced Cluster Server System Cabling .......651
Cabling for System Consoles and Cluster Administration Workstations .....651
HA Cluster Server with ASCII System Console ............651
HA Cluster Server With Graphical System Console ..........653
HA Cluster Server Graphical Cluster Administration Workstation ......654
Base HA Heartbeat Connections .................654
SSA Cabling Connections ....................656
SSA From Cluster Servers to Double Looped 7133 ..........656
Base HA Cluster Server AC Power Connections ............657
x Service Guide
Index ..........................659
Contents xi
xii 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 xv
v 88
v 491
v 516
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 xv
v xvi
v 88
v 491
v 504
v 505
v 508
v 510
v 512
v 520
Note: For a translation of these notices, see the System Unit Safety Information
manual, order number SA23-2652.
Rack Safety Instructions
v Do not install this unit in a rack where the internal rack ambient temperatures will
exceed 40 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 indirect 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 removed this unit.
v This unit requires 3 amp. with an input of 200-240 V ac power. 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.
© Copyright IBM Corp. 1999, 2000 xiii
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.
xiv Service Guide
Electrical Safety
Observe the following safety instructions any time you are connecting or disconnecting
devices attached to the server.
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 communication lines.
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.
CAUTION:
This unit has more than one power supply cord. To reduce the risk of electrical
shock, disconnect two power supply cords before servicing.
CAUTION:
Energy hazard, remove power before servicing. Disconnect two power supply
cords.
Preface xv
Laser Safety Information
The optical drive in this system unit is a laser product. The optical drive has a label that
identifies its classification. The label, located on the drive, is shown below.
The optical drive in this system unit is certified in the U.S. to conform to the
requirements of the Department of Health and Human Services 21 Code of Federal
Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. Elsewhere, the
drive is certified to conform to the requirements of the International Electrotechnical
Commission (IEC) 825 (1st edition 1984) and CENELEC EN 60 825:1991 for Class 1
laser products.
CAUTION:
A class 3 laser is contained in the device. Do not attempt to operate the drive
while it is disassembled. Do not attempt to open the covers of the drive as it is
not serviceable and is to be replaced as a unit.
Class 1 laser products are not considered to be hazardous. The optical drive contains
internally a Class 3B gallium–arsenide laser that is nominally 0.14 milliwatts at 765 to
815 nanometers. The design incorporates a combination of enclosures, electronics, and
redundant interlocks such that there is no exposure to laser radiation above a Class 1
level during normal operation, user maintenance, or servicing conditions.
CLASS 1 LASER PRODUCT
LASER KLASSE 1
LUOKAN 1 LASERLAITE
APPAREIL A LASER DE CLASSE 1
IEC 825:1984 CENELEC EN 60 825:1991
xvi 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.
© Copyright IBM Corp. 1999, 2000
xvii
xviii Service Guide
About This Book
This book provides maintenance information that is specific to the Enterprise Server
S80 pSeries 680 Model S85 (hereafter referred to as the models S80 and S85 in this
book), adapters, and devices that do not have their own service information. It also
contains Maintenance Analysis Procedures (MAPs) that are not common to other
systems.
MAPs that are common to all systems are contained in the Diagnostic Information for
Multiple Bus Systems.
This book is used by the service technician to repair system failures. This book
assumes that the service technician has had training on the system unit.
ISO 9000
ISO 9000 registered quality systems were used in the development and manufacturing
of this product.
Online Publications
RS/6000 and p Series publications are available online. To access the online books,
visit our Web site at: http://www.rs6000.ibm.com/resource/hardware_docs/
Related Publications
The following publications provide additional information about the system::
v The System Unit Safety Information, order number SA23-2652, contains translations
of safety information used throughout this book.
v The Enterprise Server S80 pSeries 680 Model S85 User’s Guide, order number
SA38-0557, contains information to help users set up, install options, configure, and
modify the system, as well as solve minor problems.
v The Diagnostic Information for Multiple Bus Systems, order number SA38-0509,
contains common diagnostic procedures, error codes, service request numbers, and
failing function codes. This manual is intended for trained service technicians.
v The Adapters, Devices, and Cable Information for Multiple Bus Systems, order
number SA38-0516, contains information about adapters, external devices, and
cabling. This manual is intended to supplement information found in the Diagnostic
Information for Multiple Bus Systems.
v The PCI Adapter Placement Reference, order number SA38-0538, contains
guidelines for placement of PCI adapters into I/O drawers of models S80 and S85
systems. This manual is intended to help in planning adapter installation, so that
optimum tested adapter configurations are used.
v The Site and Hardware Planning Information, order number SA38-0508, contains
information to help you plan your installation.
© Copyright IBM Corp. 1999, 2000 xix
v The Electronic Service Agent for RS/6000 User’s Guide, contains information for use
by the service representative to help set up and use the Electronic Service Agent
package.
v The Capacity Upgrade on Demand Installing and Upgrading Processors, order
number SA38-0583, contains information regarding the capacity upgrade on demand
feature.
v SSA Adapters User’s Guide and Maintenance Information, order number SA33-3272,
is intended to help users and service representatives work with and diagnose
problems with SSA adapters and devices.
v The RS/6000 SP Maintenance Information Manual, Volume 1, Installation and
Customer Engineering Operations, order number GC23-3903, is used for installation
and service information when an models S80 and S85 system is used in an RS/6000
SP attachment configuration.
v The High Availability Cluster Multi-Processing for AIX, Version 4.3: Enhanced
Scalability Installation and Administration Guide, SC23-4284, is needed for
HACMP/ES planning information.
v The High Availability Cluster Multi-Processing for AIX, Version 4.3: Planning Guide,
order number SC23-4277, is needed for HACMP/ES planning information.
v The 7133 SSA Disk Subsystem: Operator Guide describes how to operate the 7133
SSA Disk Subsystem, how to install or replace disk drives to the system, and how to
deal with problems encountered when using the system.
v The 7133 SSA Disk Subsystem: Service Guide is used by the service technician to
repair system failures in the 7133 SSA Disk Subsystem.
Trademarks
The following terms are trademarks of International Business Machines Corporation in
the United States, other countries, or both:
v AIX
v IBM
v RS/6000
Other company, product, and service names may be trademarks or service marks of
others.
xx Service Guide
Chapter 1. Reference Information
This chapter provides an overview of the models S80 and S85. This includes a logical
description and a physical overview of the system. Additional details pertaining to the
models S80 and S85 are also provided. These include:
v Memory overview and ordering rules
v General description of the operator panel
v Cabling rules
v System location rules and descriptions
v Powering on and off the system
v Power flow
v Data flow
Models S80 and S85 Overview
The models S80 and S85 systems are exclusively multi-processor, multi-bus systems
packaged in two different rack types. The processors and memory are packaged in the
system rack and the DASD and I/O devices are in I/O drawers. The basic system
consists of one system rack and one I/O drawer in a separate rack. The system is
expandable to one system rack and four I/O drawers in up to four I/O racks. Connection
between the system rack and subsequent I/O drawers is made through a number of
cables, which include SPCN (system power control network), RIO (remote input output),
JTAG, and operator panel cables.
The system rack is powered independently from the I/O drawer. The system rack
supports a minimum of one processor card to a maximum of four. Each processor card
has six processors, each having its own L2 cache. The system memory is controlled
through a multi-port controller complex and supports up to 16 memory slots. The total
memory available to the system user is dependent on the memory feature card installed
and the number of memory cards. All system memory resides in the system rack.
Additional major functional units in the system rack include the operator panel and
control circuitry, the SPCN controller, interrupt, and system bus control logic. Power is
brought into the system rack through an ac power cord (200 - 240 V ac), distributed to
six bulk supplies and then fed through regulators for both system resources and logic
and memory.
The I/O rack holds the I/O drawer, which provides for up to 14 PCI adapters per drawer.
Four distinct peripheral component interface (PCI) buses are present in each I/O
drawer. The primary I/O drawer (drawer 0) has PCI slots 6, 7, 8, and 13 reserved for
the system media, Service Processor and DASD bays resident in the I/O drawer. These
slots are available in subsequent I/O drawers 1 through 3 for any supported PCI
adapter to use. The PCI bus speed is 33Mhz with both 32- and 64- bit adapters
supported on a slot basis. Slots 1, 5, 9, 10 and 14 support either 32- or 64- bit PCI
adapters. The remaining slots are 32 bit only. “Models S80 and S85 Data Flow” on
page 2 illustrates the system data flow.
The I/O drawer provides space for up to three media devices (tape, CD-ROM, and
diskette drive) and two DASD bays, each holding up to six disk drives.
© Copyright IBM Corp. 1999, 2000 1
The I/O rack uses 200 - 240 V ac power.
Models S80 and S85 Data Flow
L2
RS64-III
CPU
RS64-III
CPU
L2
ADD
Processor Card 0
Processor Card 1
Processor Card 2
Processor Card 3
DATA
ADDR
Buffers
Data
Flow
Control
Memory Cards
256MB - 8GB
I/O Planar
I/O Drawers
PCI Buses PCI Buses PCI Buses PCI Buses
I/O Planar I/O Planar I/O Planar
Processor Cards
RIO Ports
I/O
Hub
A
D
System Backplane
System Backplane
I/O
Interface
Data Flow Switches
Memory Cards
256MB - 8GB
Memory Cards
256MB - 8GB
Memory Cards
256MB - 8GB
2 Service Guide
Powering the System On and Off
The system can be powered on after the following cables are connected:
v All RIO cables
v All SPCN cables
v JTAG cable
v Inter-rack operator panel cable
v All PCI cables to supported drawers
After the required cables are installed and the power cables are connected, the power
button on the system operator panel can be pushed one time to initialize the system (if
the button is pushed two times, the system powers off). Progress indicators, also
referred to as checkpoints, are visible on the operator panel display and the green LED
to the right of the power button illuminates, indicating the system power is on.
The remote I/O drawers are powered up through the system power control network
(SPCN) controls and interfaces in both the system rack and I/O drawers. When power
is applied, a light-emitting diode (LED) on the I/O drawer indicator panel goes from
blinking (green) to on continuously, which indicates that power levels are satisfactory in
the drawers.
If the system is operating under AIX, enter the shutdown -F command to power off the
system. If you cannot use this method, you can power off the system by pressing the
operator panel power button two times.
Attention: Using the operator panel power pushbutton to power off the system may
cause unpredictable results in the data files, and the next IPL will take longer to
complete.
For complete details on how to power the system on and off, go to “Powering Off and
Powering On the System” on page 492 and “System Power-On Methods” on page 470.
Console Strategy
The firmware invokes a console-selection sequence at system boot time if any of the
following is true:
v A console has not yet been selected.
v A previous console-selection sequence timed out.
v A change occurred in the system configuration affecting the console (keyboard
installed/removed, mouse installed/removed, graphics adapter installed/removed or
moved to another PCI slot).
The console-selection sequence allows the selection (from the appropriate input device)
of one of the available console devices. If no console is selected within approximately
60 seconds, serial port 1 (com1) is selected as the console, and the selection sequence
times out.
Chapter 1. Reference Information 3
After a console has been selected, the console-selection sequence is only invoked at
boot time if there is a change in the system configuration (as described above), or the
contents of the system’s nonvolatile memory (NVRAM) is lost.
Note: Moving an ASCII terminal from one serial port to another (from com1 to com2)
cannot be detected by the firmware, so it does not constitute a configuration
change.
A system console-selection sequence can also be initiated from the System
Management Servies (SMS) menus.
Power-On Self-Test
After power is turned on and before the operating system is loaded, the system does a
power-on self-test (POST). This test performs checks to ensure that the hardware is
functioning correctly before the operating system is loaded. During the POST, a POST
screen is displayed, and POST indicators appear on the system console (if one is
connected). The next section describes the POST indicators and functions that can be
accessed during the POST.
POST Indicators
POST indicators indicate tests that are being performed as the system is preparing to
load the operating system. The POST indicators appear as words on the system
console. Each time the system starts a different step in the POST, a POST indicator
word displays on the console. Each word indicates the tests that are being performed.
The POST screen displays the following words:
Memory
Memory test
Keyboard
Initialize the keyboard and mouse. The window for pressing a key to access
the System Management Services, or to boot from a default boot list is now
open. See “POST Keys” for more information.
Network
Self-test on network adapters.
SCSI Adapters are being initialized.
Speaker
Sounds an audible tone at the end of POST.
POST Keys
The POST keys, if pressed after the keyboard POST indicator displays and before the
last POST indicator displays, cause the system to invoke services or boot modes used
for configuring the system and diagnosing problems. The keys are described below:
4 Service Guide
Numerical 1 Key
The numerical 1 key, when pressed during POST, invokes the System Management
Services (SMS) interface.
Numerical 5 Key
The numerical 5 key, when pressed during POST, invokes a service mode boot using
the default boot list. This mode attempts to boot from the first device of each type found
in the list. It does not search for other bootable devices of that type if the first device is
not bootable. Instead, it continues to the next device type in the list. The firmware
supports up to five entries in the boot list.
The numerical 5 key is used to boot the system in service mode to run stand-alone
diagnostics.
The default boot order is:
1. Diskette
2. CD ROM
3. Hard file
4. Tape drive
5. Network
a. Token ring
b. Ethernet
Numerical 6 Key
The numerical 6 key works like the numerical 5 key, except firmware looks for a boot
record according to the custom bootlist that was set up by System Management
Services.
The numerical 6 key is used to boot the system in service mode to run online
diagnostics.
Numerical 8 Key
To enter the open firmware command line, press the numerical 8 key after the keyboard
icon displays and before the last icon (the speaker icon) displays during startup. After
pressing the numerical 8 key, the remaining POST indicators display until initialization
completes.
When initialization and power-on self-test (POST) are complete, the open firmware
command line (an OK prompt) displays.
The open firmware command line is used to set up adapters that are not configurable
with the System Management Services. Your adapter documentation directs you to use
this option if it is needed.
To exit from the open firmware command, type reset-all or power down the system
and reboot.
Chapter 1. Reference Information 5
Models S80 and S85 Locations
Models S80 and S85 systems consist of a minimum of two racks — the system rack
and the input/output rack (I/O rack). These two components are connected by cables
that transmit data and control signals. Additional I/O racks can be added if further
expansion of the system is required. The following illustration shows the two racks.
System Rack
I/O Rack
6 Service Guide
System and I/O Rack Configurations
Model S80 and S85 systems can be set up in various configurations regarding the
placement of the primary I/O drawer. Typically, the primary I/O drawer is installed in an
I/O rack with other drawers attached to the same system rack. If two systems are
installed side-by-side, then the two systems can share one I/O rack by installing both
primary I/O drawers in the same rack. This can be done to save space and also if the
systems are used for high-availability (HA) applications. The following illustrations show
some basic configurations.
Basic Configuration with Primary I/O Drawer
Primary I/O Drawer
(Drawer 0)
Chapter 1. Reference Information 7
Basic Configuration with Two I/O Drawers
Primary I/O Drawer
(Drawer 0)
Secondary I/O Drawer
(Drawer 1)
8 Service Guide
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