IBM B01 User manual

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IBM S/390® Integrated Server 3006 ---
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Service Guide
ModelBOl

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IBM S/390® Integrated Server 3006
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Service Guide
ModelBOl
SY24-6161-01

Note! ----------------------------------~~~--------------------------------------------~
' .. :- .
Before using this information and the product it supports, ~~. sure to read the general information under "Notices" on page xi.
Second Edition (May 1999)
This edition, SY24-6161-01, applies to the IBM System/390® Integrated Server version 3.0 and licensed internal code version 2.10
and to all subsequent releases
of this product until otherwise indicated in new editions or Technical Newsletters.
Changes are made periodically to the information
h~rein; any such changes will be reported in subsequent revisions or Technical
Newsletters.
Publications are not stocked at the address given below. U.S. customers can order publications by calling the IBM Software
Manufacturing Solutions at 1-800-879-2755. Outside the U.S., customers should contact the IBM branch office serving their locality.
A form for readers' comments is provided at the back of this publication.
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 1999. 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.
c

Contents
)
© Copyright IBM Corp. 1999
Notices
Electronic Emission Notices
Trademarks
.......... .
~tatement of Limited Warranty
Safety ............. .
Safety Notices ..... .
Laser Safety Information
Laser Compliance
World Trade Safety Information
Preface ........... .
Who Should Use This Guide
How This Book Is Organized
Chapter 1. START
Problem / Service Activity Start List
Chapter 2. Solving Problems
OS/2 Problems ........ .
Sequence of events from a power up
Chapter 3. P/390 Processor Card
Processor Unit Problem/Action List
· .... xi
· .... xi
· .... xii
· ... xiii
· ... xvii
· ... xvii
· ... xvii
· ... xvii
· ... xviii
xix
xix
xix
1
1
....... 3
3
3
....... 7
7
Description .............. . . . . .. ..... ....... 7
Installing P/390 Hardware and Software . . . " ....... 8
Diagnostics ................................ ....... 8
Procedure ............................... . ...... 9
STOPPED and DOWN Displayed on the System/390 HI Activity Display 10
P/390 Error Messages . . . . . . . .
11
AWS Message Format ................. 11
Chapter 4. PCI/ISA BUS and Adapters ....... .
Start of Repair for PCI-ISA Bus and Adapters ..... .
Description of the PCI/ISA BUS
..... .
Maximum Configurations ....... .
Adapter Plugging Rules for PCI/ISA slots
PCI/ISA Slots
.............. .
SBC/PCI/ISA Bus Structure -Logical View
SBC/PCI/ISA Bus Structure -Physical View
Solving Adapter Problems
PCI Bus Isolation ..... .
Token-Ring Adapter
Adapter LEDs and Labels
Labels
.......... .
LEOs
........... .
Adapter Communication Problems
Adapter Cable ........ .
Configuration Settings
.... .
NDIS 2 Device Driver Messages
13
13
13
....... 13
14
. ........... 15
16
17
18
18
19
19
19
20
21
21
22
23
iii

iv Service Guide
Diagnostics .....
EtherJet PCI Adapter
Diagnostic LEOs
Common Problems and Solutions
Diagnostics
......... .
Adapter Address
............. .
Fast Ethernet Cabling
....... .
RS422 Adapter
....... ...... .
Connector Pin Assignment
Setup Jumpers
..... .
RS422 Adapter Card Layout
RS422 Diagnostics
Multiport Model 2 Adapter
Overview ....... . ..... .
Setting the Option Switch
SW1 ..... .
Wide Area Connector (WAC) Adapter
Electrical Interface Board (EIB) Cable Connections
Diagnostics ....... .
Error Messages
Installing the EIB
WAC Switch Settings
S/390 PCI Channel Adapters
Channel Diagnostics
Invoking Channel Diagnostics
Chapter
5. SCSI BUS and Devices
Start of Repair for SCSI Bus and SCSI Devices
Description of the SCSI Bus
...... .
SBC SCSI Interface ............. .
Terminating the SBC SCSI Interface
Attached Devices
Service Tips .......... .
Differential SCSI Adapter
Terminating the AHA-2944UW
Service Tips ..... .
Diagnostics ............. .
CD-ROM .............. .
CDROM Drive LED Descriptions
CD-ROM Drive Problems
4MM DAT Tape ................. .
Using the Drive
......... .
4MM OAT Tape LED Descriptions ..... .
Loading and Unloading Data Cartridges
Cleaning the Drive
.............. .
Chapter
6. Single Board Computer and Attached 1/0
Start of Repair for I/O and Service Processor (IOSP)
Description and Layout of the Single Board Computer (SBC)
10SP Bus Structure . . . . . . . .
Configuration Jumpers
CPU Speed Jumpers
BIOS Operation
BIOS Errors
Running
AMI BIOS Setup
28
30
30
30
31
31
32
33
33
33
34
34
36
36
36
38
38
38
40
40
42
43
43
44
45
45
45
46
46
46
46
46
46
46
47
48
48
48
48
48
48
49
50
51
51
51
53
54
54
55
56
58

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AMIBIOS Setup Main Menu ....... .
Default P/390 Settings for SBC BIOS Setup
Auto Configuration Options
......... .
Auto Configuration with Optimal Settings
..... .
Auto Configuration with Fail Safe Settings . . . . . .
Save Settings and Exit . . . . . . . . . . . .
Exit without Saving . . . . . . . .
Key Conventions .
.. . . . . .
BIOS Beep Codes . . . . . . . .
BIOS Error Messages
ISA BIOS NMI Handler Messages
Single Board Computer Diagnostics
Diskette Drive
.......... .
Diskette Drive LED Descriptions
Diskette Drive Problems
Resolving Keyboard, Monitor, and Mouse Problems
Chapter 7. SSA RAID Adapter, SSA, and RAID
SSA Maintenance Procedures (MAPs) ..... .
How to Use the MAPs
...... ............. .
SSA START ............. . ............... .
Service Request Numbers (SRNs)
The SRN Table
......... .
Using the SRN Table
..... . ......... .
Software and Microcode Errors . . . . . . . . . . .
SSA Loop Configurations that Are Not Valid
SSA -LINK ERRORS
SSA -Intermittent Link Error
SSA -RAID ERRORS ..... .
SSA -Repair Verification ........... .
General Information About the SSA RAID Adapter, SSA, and RAID
SSA Interfaces for Eight or Less Drives
......... .
SSA Plugging Rules for Eight or Less Disk Drives
SSA Interfaces for Greater Than Eight Drives ..... .
SSA Plugging Rules for Greater than Eight Disk Drives
SSA Loops and Links
Loops and Data Paths
Rules for SSA Loops
RAID Functions
Hot Spares
RAID-5
Array States
Good State
Exposed State
Degraded State
Rebuilding State
Offline State
SSA Link ...... .
Link Status Lights
Using the SSA Service Tools
SSA Service Aids
Set Service Mode Service Aid
Format Disk Service Aid
Certify Disk Service Aid
58
60
62
62
62
63
63
63
64
65
68
69
70
70
70
71
73
74
74
75
77
77
77
81
81
83
88
90
· .... 109
· ... 110
· .... 111
· .... 111
· .... 112
· .... 112
· .. 113
· ... 113
· ... 114
· ... 115
· .. 115
· .. 115
· .. 115
· .. 115
· ... 115
· ... 116
· ... 116
· ... 116
· ... 117
· ... 118
· ... 119
· ... 119
· .... 119
· .. 120
·
.... 120
Contents V

The Identify Function .............................. 120 1f1i
Running the SSA Service Aids .......................... 121 ~
Finding the Physical Location of a Device . . . . . . . . . . . . . . . . . 125
Finding the Device When Service Aids Are Available
........... 125
Finding the Device When No Service Aids Are Available
..... 125
The Event/Error Logger Utility
.......................... 126
Analyze SSA Event Log
............................ 126
Dump SSA Event Log
............................. 127
Terminate SSA Event Log
........................... 127
Modify Event Logger Time Out
........................ 127
Using the SSA Configurator Functions
........ . . . . . . . . 128
Running the SSA Configurator ............ . . . . . .. .... 129
Chapter 8. Removal and Replacement Procedures . . . . . .. .... 141
S/390 Integrated Server FRU Types ......... ........ . ... 142
Power Off Procedures
................................ 142 If. :jli
Logic Adapter FRUs ................................. 144 ~'
P/390 Card Removal and Replacement ..................... 144 -I
Removing the P/390 card ...................... .... 144
Replacing the P/390 Card
........................... 144
RS422 Adapter Removal and Replacement . . . . . . . . . . . . 145
Removing the RS422 Adapter
............ ............ 145
Replacing the RS422 Adapter ............ ............ 145
Differential SCSI Adapter Removal and Replacement ............ 146
Removing the SCSI Adapter ............ ....... . 146
Replacing the SCSI Adapter ..................... . ... 146 dj(.
Communication Adapters Removal and Replacement ....... .... 147 'l,;
Removing the Communication Adapters .............. . 147
Replacing the Communication Adapters . . . . . . . . . .. 147
Channel Adapter Removal and Replacement . . . . . . . . . . . . . 149
Removing the Channel Adapter ........................ 149
Replacing the Channel Adapter ........................ 149
SSA RAID Adapter Removal and Replacement ................ 150
Removing the SSA RAID Adapter ................. . ... 150
Replacing the SSA RAID Adapter ...................... 150
Extender Card (SSA Loop) Removal and Replacement ........... 151
Removing the Extender Card (SSA Loop) . . . . . . .. . ... 151
Replacing the Extender Card (SSA Loop) .................. 151
Single Board Computer Subsystem FRUs . . . . . . . . . . . . . . . . . . . 152
SBC Card Removal and Replacement . . . . . . . . . . . . . . . 152
Removing the SBC Card
....... ......... . . . . . . . . . . 152
Replacing the SBC Card
............................ 152
CDROM Drive Removal and Replacement .............. . 154
Removing the CDROM Drive . . . . . . . . . . . . . . . . . 154
Replacing the CDROM Drive . . . . . . . . . . . . . . . . . . . . 154
Diskette Drive Removal and Replacement
................... 154
Removing the Diskette Drive . . . . . . . . . . . . . . . . 154
Replacing the Diskette Drive . . . . . . . . . . . . . . . . . 154
4MM
OAT Tape Drive Removal and Replacement .............. 154
Removing the 4MM
OAT Tape Drive ..................... 154
Replacing the 4MM OAT Tape Drive
..................... 155
Power and Mechanical FRUs ............................ 156
OCA (Offline Converter Assembly) Removal and Replacement . . . . . 156
Removing the OCA
............................... 156
vi Service Guide

)
Replacing the OCA ............................... 156
MDAlMSA (Motor Drive Assembly I Motor Scroll Assembly) Removal and
Replacement
...................................... 158
Removing the MDA
............................... 158
Replacing the MDA ............................... 158
Removing the MSA
............................... 158
Replacing the MSA ............................... 159
IBF (Integrated Battery Feature) Removal and Replacement ........ 160
Removing the IBF ................................ 160
Replacing the IBF
................................ 160
EPO (Emergency Power Off) Removal and Replacement
.......... 161
Removing the EPO Card ............................ 161
Replacing the EPO Card ............................ 161
Adapter 1/0 Cage Assembly Removal and Replacement ........... 162
Removing the Adapter
1/0 Cage ....................... 162
Replacing the Adapter 1/0 Cage ....................... 162
Midplane Removal and Replacement ...................... 163
Removing the Mid Plane Board
........................ 163
Replacing the Mid Plane Board ........................ 163
DASD Subsystem FRUs ............................... 164
Disk Drive Assembly (HDA) Removal and Replacement ........... 164
Removing Array Disk Assembly (HDA) . . . . . . . . . . . . . . . . . . . 164
Replacing the Array Disk Assembly (HDA) ................. 165
Chapter 9. Power .................................. 167
1ST Level Diagram of the Power Sub-System
.................. 168
General Power Terminology ............................. 168
FRU Types ....................................... 168
System Power Status Window ............................ 169
Opening the System Power Status Window .................. 169
Menu Bar ...................................... 170
Display Information
................................. 170
Power Failures ..................................... 172
Over Current Isolation ................................ 190
Diagram of the OCA ................................. 203
OCA Location
.................................... 203
OCA LED Descriptions .............................. 203
OCA Switch Descriptions
............................. 203
Diagram of the MDA ................................. 204
General Thermal FRU Terminology
....................... 204
MSAlMDA Locations ................................ 204
MDAlMSA LED Descriptions ........................... 204
Diagram of the IBF .................................. 205
Internal Battery Feature (IBF)
.......................... 205
IBF Locations
.................................... 205
IBF LED Description
.......... : . . . . . . . . . . . . . . . . . . . . . 205
IBF Switch Descriptions
.............................. 206
.
Diagram of the EPa Card .............................. 207
Machine Emergency Power Off (EPO) ..................... 207
Computer Room Emergency Power Off (EPO) ............... 207
EPO Card Location
................. . . . . . . . . . . . . . . . 209
EPO LED Descriptions
.............................. 209
EPa Switch Description ............................ 209
Contents vi i

Power and Cooling Requirements ......................... 210
Power Enclosure Power Connection ....................... 210
Power and Cooling Specifications ...................... 210
Customer Circuit breaker (CB) ........................ 210
Line Physical Protection ............................ 210
Grounding Specifications ............................ 211
Specifications ..................................... 212
Shipping Specifications
.............................. 212
Service Clearance and Weight Distribution ................... 212
Environmental Specifications ........................... 213
Acoustical Noise Emission Levels ...................... 214
Chapter 10. Service Procedures ......................... 215
Service Procedures Problem/Action List ...................... 215
Collecting I/O Traces and Logs ........................... 217
Summary of operation (AWSABEND.CMD) .................. 217
Snap Shot Dump .................................. 217
P/390 Error Logs ................................... 218
AWSERROR.LOG ................................. 218
POPUPLOG.OS2 ................................. 218
LANTRAN.LOG ................................... 218
AWS3172.LOG ................................... 219
AWS3172.ERR ................................... 219
P/390 I/O Trace (AWSTRACE.LST) ........................ 219
Setting up I/O Tracing by editing the CHAN.TRC File ............. 219
Modifying defaults for P/390 Trace Spooling
.................. 220
Specifying Options for I/O Trace· ......................... 220
Using the Device Debug Facility ......................... 221
Kernel Trace .................................... 221
P/390 Trace Spooling (AWSTRSP.nnn) ..................... 221
Syntax ...................................... 221
Optional Parameters .............................. 221
Sending traces and logs to IBM service (SENDLOG.CMD) ........... 222
Summary of Operation (SENDLOG.CMD)
................... 222
System 390 Integrated Server FTP Site ...................... 223
Change Management Tools ............................. 223
Download Fixpacks ................................ 223
Unpacking Fixpacks ................................ 224
Installing Fixpacks ................................. 224
Setting up an Internet Connection via Modem ................... 224
Creating Diagnostic Diskettes
............................ 230
Procedures ..................................... 230
Configuration Save/Restore Procedures ...:.................. 231
Configuration Save/Restore Steps ........................ 231
Method ....................................... 232
Installing S/390 Integrated Server Software .................... 232
Booting the OS/2 Utility diskettes
........................ 233
Configuring the SSA RAID-5 DASD ....................... 233
Rebooting OS/2 and enabling CBIOS
...................... 235
Partitioning the DASD with FDISK ........................ 235
Installing 10SP Software ............................. 236
Booting OS/2 from SSA and formatting HPFS partitions
........... 237
Chapter 11. OS/2
Utilities ............................. 239
viii Service Guide

ALC.EXE OS/2 Utility ............................... 239
Syntax
...................................... 239
Required Parameters
.............................. 240
Optional Parameters .............................. 240
Examples ..................................... 240
AWSCFG.CMD OS/2 Utility
............................ 240
Syntax ...................................... 240
Optional Parameters .............................. 240
AWSEND.CMD OS/2 Utility ............................ 241
Syntax ...................................... 241
Optional Parameters .............................. 241
AWSMOUNT.EXE OS/2 Utility .......................... 241
Syntax ...................................... 241
Required Parameter .............................. 241
Optional Parameters .............................. 241
Example ..................................... 242
AWSPROF.EXE OS/2 Utility
........................... 242
Syntax ...................................... 242
Required Parameters .............................. 242
AWSSTART.EXE OS/2 Utility .......................... 242
Syntax ...................................... 242
Optional Parameters .............................. 242
AWSSTAT.EXE OS/2 Utility ........................... 243
Syntax ...................................... 243
Optional Parameters .............................. 243
) Example
..................................... 243
Return Codes .................................. 243
CKDALC.EXE OS/2 Utility ............................ 244
Syntax ...................................... 244
Required Parameters .............................. 244
Optional Parameters .............................. 244
Example ..................................... 244
DEV2NAME.CMD OS/2 Utility
.......................... 244
Explanation of Tags ............................ . . 245
Syntax ...................................... 245
Required Parameters .............................. 246
AWSICE OS/2 Utilities ............................... 246
Example
..................................... 246
IPL.CMD OS/2 Utility ................................. 246
Syntax ....................................... 246
Optional Parameters
.............................. 246
Example ..................................... 247
RDEVMAP.CMD OS/2 Utility ........................... 247
Syntax ...................................... 248
Optional Parameters .............................. 248
SENDLOG.CMD OS/2 Utility ........................... 248
Syntax
...................................... 248
Optional Parameters
.............................. 248
Chapter 12. Parts Catalog
............................. 249
) Assembly 1: Covers
................................ 252
Assembly
2: Cage Assembly .......................... 254
Assembly
3: I/O Assembly ............................ 256
Assembly 4: PCI Cage Assembly
........................ 258
Contents ix

X Service Guide
Assembly 5: Power Assemblies
Chapter 13. Overview
Description
Hardware
...... .
Software
Top View Locations
Front View
..... .
Front View Locations
Rear View
Rear View Locations
Side View
Index
.260
.263
.263
.264
.264
.265
.266
.267
.268
.269
.270
.273

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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 product, program, or service is not intended to state or
imply that only IBM's product, program, or service may
be used. Any functionally
equivalent product, program, or service that does not infringe any of IBM's
intellectual property rights may
be used instead of the IBM product, program, or
service. 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 USA.
Licenses of this program who wish to have information about it for the purpose of
enabling: (i) the exchange of information between independently created programs
and other programs (including this one)
and (ii) the mutual use of the information
which has been exchanged, should contact:
IBM Corporation
Mail Station P300
522 South Road
Poughkeepsie, NY 12601-5400
USA
Attention: Information Request
Such information may be available, subject to appropriate terms and conditions,
including
in some cases, payment of a fee.
Electronic Emission Notices
The following statement applies to this IBM product. The statement for other IBM
products intended for use with this product will appear in their accompanying
manuals.
Federal
Communications Commission (FCC) Statement
Note: This equipment has been tested
and found to comply with the limits for a
Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when the
equipment is operated
in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used
in
accordance with the instructions contained in the installation manual, may cause
harmful interference to radio communications. Operation of this equipment
in a
residential area is likely to cause harmful interference,
in which case the user will
be required to correct the interference at his own expense.
) Properly shielded and grounded cables and connectors must be used in order to
,} meet FCC emission limits. IBM is not responsible for any radio or television
interference caused by using other than recommended cables and connectors, by
© Copyright IBM Corp. 1999 xi

Trademarks
xii Service Guide
installation or use of this equipment other than as specified in the installation I"
manual, or by any other 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.
Canadian Department of Communications Compliance Statement
This equipment does not exceed Class A limits per radio noise emissions for digital
apparatus, set out in the Radio Interference Regulation of the Canadian
Department of Communications. Operation
in a residential area may cause
unacceptable interference to radio and TV reception requiring the owner or operator
to take whatever steps are necessary to correct the interference.
Avis de conformlte aux normes du ministere des Communications du Canada
Cet equipement ne depasse pas les limites de Classe A d'emission de bruits
radioelectriques pour les appareils numeriques, telles que prescrites par Ie
Reglement sur Ie brouillage radioelectrique etabli par Ie ministere des
Communications du Canada. L'exploitation faite en millieu residentiel peut
entrainer
Ie brouillage des receptions radio et tele, ce qui obligerait Ie proprietaire
ou I'operateur aprendre les dispositions necessaires pour en eli miner les causes.
The following terms are trademarks of IBM Corporation in the United States or
other countries or both.
S/370 S/390
MVS/ESA PS/2
System/390 System/370
ES/9000 VM/ESA
ESAl390 VSE/ESA
ESCON VTAM
IBM WIN-OS/2
IBMLink XGA
EtherJet Wake on LAN
• AMI and AMIBIOS are trademarks of American Megatrends, Inc.
• SCSISelect is a trademark of Adaptec, Inc.
• Pentium
is a trademark of Intel Corporation in the United States and/or other
countries.
~

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Statement of Limited Warranty
The warranties provided by IBM in this Statement of Limited Warranty apply only to
Machines you originally purchase for your use, and not for resale, from IBM or an
IBM authorized reseller.
The term "Machine" means an IBM machine, its features,
conversions, upgrades, elements,
or accessories, or any combination of them.
Machines are subject
to these terms only if purchased in the United States or
Puerto Rico,
or Canada, and located in the country of purchase. If you have any
questions, contact IBM
or your reseller.
Machine: System 390 Integrated Server
Warranty Period*: One Year
*Elements and accessories are warranted for three months. Contact your place of purchase for
warranty service information.
Production Status
Each Machine is manufactured from new parts, or new and serviceable used parts
(which perform like new parts).
In some cases, the Machine may not be new and
may have been previously installed. Regardless of the Machine's production
status, IBM's warranty terms apply.
The IBM Warranty
IBM warrants that each Machine 1) is free from defects in materialsand
workmanship and
2) conforms to IBM's Official Published Specifications. IBM
calculates the expiration of the warranty period from the Machine's Date of
Installation. The date on your receipt is the Date of Installation, unless IBM or your
reseller informs you otherwise.
During the warranty period,
IBM or your reseller will provide warranty service under
the type of service designated for the Machine and will manage and install
engineering changes that apply to the Machine. IBM or your reseller will specify
the type of service.
For a feature, conversion, or upgrade,
IBM or your reseller may require that the
Machine
on which it is installed be 1) the designated, serial-numbered Machine and
2) at an engineering-change level compatible with the feature, conversion, or
upgrade. Some of these transactions (called "Net-Priced" transactions) may include
additional parts and associated replacement parts that are provided
on an
exchange basis. All removed parts become the property of IBM and must be
returned to IBM.
Replacement parts assume the remaining warranty of the parts they replace.
If a Machine does not function as warranted during the warranty period, IBM or
your reseller will repair or replace it (with a Machine that
is at least functionally
equivalent) without charge.
If IBM or your reseller is unable to do so, you may
return
it to your place of purchase and your money will be refunded.
Notices xiii

xiv Service Guide
If you transfer a Machine to another user, warranty service is available to that user
for the remainder of the warranty period. You should give your proof of purchase
and this Statement to that user.
Warranty Service
To obtain warranty service for the Machine, you should contact your reseller or call
IBM.
In the United States, call IBM at 1-800-IBM-SERV (426-7378). In Canada,
call IBM at 1-800-465-6666. You may be required to present proof of purchase.
Depending on the Machine, the service may be
1) a "Repair" service at your
location (called "On-site") or at one of IBM's or a reseller's service locations (called
"Carry-in") or 2) an "Exchange" service, either On-site or Carry-in.
When a type of service involves the exchange of a Machine or part, the item IBM
or your reseller replaces becomes its property and the replacement becomes yours.
The replacement may not be new, but will
be in good working order and at least
functionally equivalent to the item replaced. (
It is your responsibility to:
1. obtain authorization from the owner (for example, your lessor)
to have IBM or
your reseller service a Machine that you do not own;
2. where applicable, before service is provided -
a. follow the problem determination, problem analysis, and service request
procedures that
IBM or your reseller provide, .
b. secure
all programs, data, and funds contained in a Machine,
c. inform IBM or your reseller of changes in a Machine's location, and
d. for a Machine with exchange service, remove all features, parts, options,
alterations, and attachments not under warranty service. Also, the Machine
must be free of any legal obligations or restrictions that prevent its
exchange; and
3. be responsible for loss of, or damage to, a Machine in transit when you are
responsible for the transportation charges.
Extent of Warranty
IBM does not warrant uninterrupted or error-free operation of a Machine.
Misuse, accident, modification, unsuitable physical or operating environment,
improper maintenance by you, or failure caused by a product for which IBM is not
responsible may void the warranties.
THESE WARRANTIES REPLACE ALL OTHER WARRANTIES, EXPRESS OR
IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
HOWEVER, SOME LAWS DO NOT ALLOW THE EXCLUSION OF IMPLIED
WARRANTIES. IF THESE LAWS APPLY, THEN ALL EXPRESS AND IMPLIED
WARRANTIES ARE LIMITED
IN DURATION TO THE WARRANTY PERIOD. NO
WARRANTIES APPLY AFTER THAT PERIOD.
In Canada, warranties include both warranties and conditions.
Some jurisdictions do not allow limitations on how long an implied warranty lasts,
so the above limitation may not apply to you.

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Limitation of Liability
Circumstances may arise where, because of a default on IBM's part (including
fundamental breach) or other liability (including negligence and misrepresentation),
you are entitled to recover damages from IBM.
In each such instance, regardless
of the basis on which you are entitled to claim damages, IBM is liable only for:
1. bodily injury (including death), and damage to real property and tangible
personal property; and
2. the amount of any other actual loss or damage, up to the greater of $100,000
or the charge for the Machine that is the subject of the claim.
Under
no circumstances is IBM liable for any of the following:
1. third-party claims against you for losses or damages (other than those under
the first item listed above);
2. loss of, or damage to, your records or data; or
3. economic consequential damages (including lost profits or savings) or incidental
damages, even if IBM
is informed of their possibility.
Some jurisdictions do not allow the exclusion or limitation of incidental or
consequential damages, so the above limitation or exclusion may not apply
to you.
This warranty gives you specific legal rights and you may also have other rights
which vary from jurisdiction to jurisdiction.
Notices XV

xvi Service Guide

)
)
Safety
Safety Notices Safety notices are printed throughout this service guide. DANGER notices warn
you of conditions or procedures that can result in death or severe personal injury.
CAUTION notices warn you of conditions or procedures that can cause personal
injury that
is neither lethal nor extremely hazardous. Attention notices warn you of
conditions or procedures that can cause damage to machines, equipment, or
programs.
The following DANGER notice appears on pages 167
and 172.
DANGER
Service of any subassemblies under power outside of their machine
frame mounts is strictly prohibited.
Laser Safety Information
CAUTION:
The coupling facility, ESCON, FICON, and OSA channel laser ports are
designed and certified
for use only with optical fiber and connectors having
characteristics
specified by IBM. The use of any other connectors or fiber
may result
in emission of laser power levels capable of producing injury to
the eye if directly viewed. Use of non-specified connectors or fiber could
violate the class 1 certification.
CAUTION:
Data processing environments can contain equipment transmitting on system
links with laser modules operating at greater than class 1 power levels. For
this reason, it is advised never to look into the end of an optical fiber cable or
open receptable. The inspection or repair of optical fiber cable assemblies
and receptacles
should be performed by trained service personnel only.
Laser Compliance
© Copyright IBM Corp. 1999
The laser modules are certified in the U.S. to conform to the requirements of
DHH8
21 CFR Subchapter J for Class 1 laser products. Elsewhere, they are
certified to be
in compliance with IEC 825 (first edition 1984) and CENELEC HD
482 81 as a Class 1 laser product. The coulping facility channel modules have
also been tested and approved
to comply with international Class 1 laser product
certifications. Consult the label
on each part for laser certification numbers and
approval information.
Class 1 laser products are not considered to be hazardous. Internally, the laser
moc'jles operating on multimode fiber contain a Class 3b laser that is nominally a
5.0 milliwatt source operating in the wavelength region of 780-850 nm. Internally,
the laser modules operating on single-mode fiber contain a class 3b laser that is
nominally a 5.0 milliwatt source operating
in the wavelength region of 1270-1340
xvii

nanometers. All 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.
CAUTION:
Although the IBM module is safe, there may be other Laser modules in the
system link that may not be safe under all conditions. For this reason it is
advised to never view the end of the optical fiber cable or open receptacle.
However, some repair
activities of optical fiber cable assemblies may require
the use of special viewing devices. In such cases, disconnecting both ends of
the fiber is mandatory. As an additional precaution, viewing equipment with
the proper Laser viewing protection filters must be used.
The OSA fiber optic modules are certified in the U.S. to conform to the
requirements of DHHS
21 CFR subchapter J for Class 1 laser products.
Elsewhere, they are certified to be in compliance with IEC 825 (first edition 1994)
and CENELEC HD 482
S1 as a Class 1 laser product. These modules have been
tested and approved to comply with International Class 1 laser product
certifications. Consult the label on each transceiver for laser certification numbers
and approval information.
Observe the following caution notice when handling ESCON, coupling facility,
or
OSA2 fiber optic channel cables.
CAUTION:
Data processing environments may contain equipment transmitting on
system links, with Laser modules operating at greater than Class 1 power
levels. For this reason, it is advised never to look into the end of an optical
fiber cable or open receptacle. The inspection and/or repair of optical fiber
cable assemblies and receptacles should be performed by trained service
personnel only.
(
I
World Trade Safety Information
xviii Service Guide
Several countries require the safety information contained in product publications to
be presented in their national languages. If this requirement applies to your
country, a safety information booklet
is included in the publications package (
shipped with the product. The booklet contains the safety information in your 'Z
national language with references to the US English source publications. Before
using a US English publication to install, operate, or service this IBM* product, you
must first become familiar with the related safety information in the booklet. You
should also refer to the booklet any time you do not clearly understand any safety
information in the US English publications.

Preface
Who Should Use This Guide
This guide is for service representatives who perform problem isolation and repair
actions
on the System 390 Integrated Server. The service representative should
have a good understanding of the OS/2 operating system.
How This Book Is Organized
© Copyright IBM Corp. 1999
This book contains the following chapters:
• Start
This
is a list of problem symptoms and the chapter or section to reference to
resolve the problem.
• System Bring-Up Sequence
Contains a flowchart of the sequence of events during power
up, and details
steps to follow if an abnormal condition occurs.
• Processor Unit
This includes a list of diagnostic procedures and a list of error codes and
messages that can result from running the diagnostics.
• PCI/ISA BUS
Describes the PCI/ISA Local Bus, and has descriptions
of each PCI interfci.l~e
adapter.
• 10SP
Describes the 10SP, the data flow, diagrams, and a description of the BIOS
operation.
• SSA Dasd
Contains service information for the SSA adapter and attached storage devices.
• Power
Includes a layout and description of the MSA, MDA, OCA, and IBF. A power
map is included as a starting point for analyzing a system power failure.
• Service Procedures
Explains the use of P/390 I/O Traces, P/390 Snap Shot Dumps, FixPack and
Patch application.
• OS/2 Utilities
Describes all the OS/2 Utilities applicable to the System 390 Integrated Server.
• Parts Catalog Lists each part and order number for the System 390 Integrated
Server.
• Overview
Gives a 3D detailed picture
of the System 390 Integrated Server and describes
each element.
xix