AT&T 3B2 Series User manual

© 1989 AT&T
All Rights Reserved
Printed in USA
Notice
The information in this document is subject to change without notice. AT&T assumes no
responsibility for any errors that may appear
in this document
Trademarks
CENTRONICS is a registered trademark of CENTRONICS Data Computer Corporation.
Datakit
is a registered trademark of AT&T.
Freon
is a registered trademark of El. DuPont DeNemours & Company.
Fujitsu
is a registered trademark of Fujitsu ltd.
Hitachi is a registered trademark of Hitachi ltd.
Keystone is a registered trademark of Control Data Corporation.
Micropolis
is a registered trademark of Micropolis Corporation.
Seagate
is a registered trademark of Seagate Technology.
Silent Knight
is a registered trademark of Silent Knight Security Systems.
UNIX
is a registered trademark of AT&T.
WE
is a registered trademark of AT&T.
WREN is a registered trademark of Control Data Corporation.
Published by AT&T.
Ordering Information
For ordering information on this document or related !earning support materials, see "Related
Learning Support Materials, in Chapter
1, "Introduction." The ordering number for this
document
is 305-395.

Contents
Introduction
About This Document 1-1
Purpose 1-1
Intended Audiences 1-1
Prerequisite Skills and Knowledge 1-1
How to Use This Document 1-3
Conventions Used in This Document 1-5
Related Leaming Support Materials 1-8
Related Documents 1-8
Related Training 1-10
How to Order Documents 1-11 1-11
How to Receive Training Information
Additional Support and Information
How to Make Comments About This Document
1-11
1-12
382 Model Overview
Introduction 2-1
Version 2
Hardware 2-2
Version 3 Hardware 2-9
Software 2-20
UNIX Releases 2-20
Compatibility Issues 2-22
UNIX System V Release 1
.0 2-22
UNIX
on Version 3 Models 2-22
Minimum UNIX Release for SCSI 2-22
3.1.1
and 120 MB Tape Drive 2-22
3.1.1
and Embedded Controller Disks 2-23
iii

3B2 Computer Maintenance Utilities 2-23
idtools 2-23
72 MB Hard Disk 2-24
Version 3 System Boards and Backplanes 2-24
382 Peripheral Overview
Introduction 3-1
Expansion Module (XM) (non-SCSI) 3-2
Expansion Module (XM) Cabling 3-3
Tape Module (TM) (non-SCSI) 3-4
TM Cabling 3-4
SCSI Bus Peripherals 3-6
Naming Conventions 3-6
Bus Addressing 3- 7
SCSI Bus
Terminators 3-7
SCSI Hardware Components 3-8
3B2 Computer Peripheral Power Control Unit 3-27
Support Of 3B4000 SCSI Peripherals 3-29
SCSI Software Utilities 3-29
Power 3-31
Soft Power 3-31
Versa Modula Europa (VME) 3-32
Start-up and Initial Testing
Introduction 4-1
System Console Set-up 4-2
Power-Up and Functionality Check 4-3
Utility Floppy Write Check 4-8
System Troubleshooting
Introduction 5-1
System Information 5-2
Firmware Mode and Firmware Vintage 5-2
Software Version 5-4
iv

Disk Partition Information 5-4
Trouble Analysis 5-5
Troubleshooting Charts 5-5
System Will Not Power-up 5-17
LED Announced Sanity Failures 5-17
Error Messages 5-18
Hard Disk Problems (Models 300/310 Only) 5-19
Software Troubleshooting 5-21
File System Checks 5-21
Restoring Core UNIX System 5-22
Crash Dumps 5-23
Restoration of Firmware Passwords 5-25
General Troubleshooting Techniques 5-26
Troubleshooting Techniques for Peripherals 5-28
Terminals and Modems 5-28
Printers 5-28
382 Subassemblies
Introduction 6-1
Version 2 6-2
Removing the Cover 6-2
Power Supply 6-3
Floppy Disk 6- 7
Cartridge Tape Drive (23 MB) 6-7
Cartridge Tape Drive (60 MB) 6-8
Hard Disk 6-8
II 0 Backplane 6-14
Memory Boards 6-18
System Board 6-19
Battery 6-26
Version 3 6-27
System Board 6-28
SCSI Host Adapter Board Removal 6-30
I/0 Feature Cards 6-31
Memory Boards 6-32
Microbus (uBus) Boards 6-33
Buffered Microbus (BuBus) Boards 6-34
Processor Bus (PBus) Boards 6-35
Removing the Cover 6-36
v

Battery 6-37
Thermal Sensor 6-37
Fans 6-40
Power Supply 6-40
SCSI Subsystem - Hard Disks and Cartridge Tape 6-43
Backplane 6-49
Floppy Disk Drive 6-49
3B2/ 500 Subassemblies 6-50
Introduction 6-50
Backplane 6-51
Power Supply 6-52
Miscellaneous Notes 6-53
382 Peripheral Subassemblies
Introduction 7-1
Expansion Module (XM) (non-SCSI) 7-2
Cartridge Tape Drive (23 MB) 7-3
Hard Disk 7-5
Floppy Disk 7-6
Tape Module (TM) (non-SCSI) 7-8
SCSI Subassemblies 7 -9
Disk Controller Module (DCM) 7-9
Disk Module (OM) 7-12
Tape Module (TM) 7-16
Expansion Module (XM) 7-18
9-Track Tape Drives 7-22
Peripheral Power Control Unit (PPCU) 7-40
1/0 Feature Cards
Introduction 8-1
Installation of Feature Cards 8-1
Initialization of Feature Cards 8-1
Troubleshooting Feature Cards 8-4
Feature Cards 8-5
Expanded Ports Card 8-5
Enhanced Ports Card 8-12
Software 8-15
vi

Network Interface Card 8-17
Remote Management Package/ Alarm Interface
Circuit
8-19
Network Access Unit 8-24
Cartridge Tape Controller Card 8-26
Intelligent Serial Controller Card 8-27
Expansion Disk Controller Card 8-35
General Purpose Synchronous Controller (GPSC)
Card 8-36
SCSI Host Adapter Card 8-38
Datakit Card 8-45
Preventive Maintenance
Introduction 9-1
Air Filter Maintenance (600/700/1000) 9-2
Cartridge Tape Maintenance 9-3
23 MB Tape Drives (Non-SCSI) 9-3
SCSI Cartridge Tape Maintenance 9-7
9-Track Tape Drive Maintenance 9-11
Desktop Autoloading, Dual Density 9-Track Tape
Drive 9-11
Keystone II (KS22762) and Keystone III (KS23113)
Preventive Maintenance
9-12
Appendix A: Handling Circuit Boards
Introduction A-1
Static Electricity Cautions A-2
Storage and Packing Guidelines A-3
General Handling Guidelines A-4
Appendix B: Using the Diagnostic Monitor
Introduction B-1
Entering the Diagnostic Monitor B-2
Diagnostic Monitor Commands 8-4
vii

Requesting System Board Diagnostics B-7
Feature Card Diagnostics B-8
Diagnostic Error Messages B-9
Appendix C: Using 382 Computer Maintenance
Utilities
Introduction C-1
3B2 Computer Maintenance Utilities Usage C-3
Fill Equipped Device Table (filledt) C-5
Diagnostic Monitor (dgmon) C-6
Integral Disk Tools (idtools) C-7
Floppy Diskette Formatter C-9
Hard Disk Formatter C-12
Hard Disk Verify C-19
Disk-to-Disk High-Speed Copy C-21
Disk-to-Disk Copy by Sector C-25
Disk-to-Memory Copy C-28
Defect Table Builder C-31
Writing Sanity Track C-42
Change Boot Defaults C-43
Appendix D: Repair Equipment and Spare Parts
Introduction D-1
Spare Parts D-2
Appendix E: Peripheral Configuration Diagrams
Introduction E-1
Diagrams E-4
Glossary
Introduction Gl-1
Terms Gl-2
viii

Index
ix

x

List of Figures
Figure 2-1
AT&T 382 computer, Model 300/310
2-2
Figure 2-2
AT&T 382 computer, Model 400
2-2
Figure 2-3 AT&T 382/300/310 major subassemblies
2-3
Figure 2-4 AT&T 382/400 major subassemblies
2-4
Figure 2-5
WE 32000-based system board CM190A (Model 300
only, earliest version)
2-5
Figure 2-6 WE 32100-based ED system board (Gl-G6) (Models
300/310/400 only)
2-6
Figure 2-7 AT&T 382 computer, Models 600/700/1000
2-10
Figure 2-8
System board CM518A (Models 500/600 only) 2-12
Figure 2-9
Virtual address cache (V cache) board CM522A
2-16
Figure 2-10
MuHiprocessor enhancement board (MP8)
CM527A
2-17
Figure 2-11 Processing
element (PE) board CM524A 2-18
Figure 3--1
AT&T expansion module (XM)
3-2
Figure 3--2 AT&T tape
module
3-5
Figure 3--3 Example layout of a single-ended SCSI bus and
devices
3-9
Figure 3--4 SCSI disk controller module
3-12
Figure 3--5
Disk module for ESDI disks
3-14
Figure 3--6
Disk module for SCSI disks with embedded
controller
3-17
Figure 3--7 SCSI expansion module (XM/900)
3-19
Figure 3--8
SCSI cartridge tape module (TM/60S and
TM/120S) 3-21
Figure 3--9
SCSI 9-track tape drive (front view)
3-23
Figure 3-- Jl 0 SCSI 9-track tape drive (rear view)
3-24
Figure 3--11
Desk-top autoloading dual density tape drive
(KS23495)
3-26
Figure 3--12 Soft
power connections to PPCU
3-28
Figure 3--13 VME host adapter
3-33
Figure 3-14
VME patch panel
3-34
Figure 4--1
300/310 power switch
4-3
Figure 4--2
400/500 power switch
4-4
xi

Figure 4-3
600/700/1000 power switch
4-5
Figure 4-4
Power-up sequence messages
4-6
Figure 5-1
Power-up troubleshooting (Models 300/310/400)
5-6
Figure 5-2
Power-up troubleshooting (Model 600)
5-7
Figure 5-3
Power-up routine (all models)
5-8
Figure 5-4
Disk access panel terminating SIP resistor
5-20
Figure 5-5
sysdump
5-24
Figure 6-1
3B2/400 power cable connectors
6-6
Figure 6-2
ST-506 interface
6-9
Figure 6-3
Hard disk drive connectors
6-10
Figure 6-4
Hard disk drive cabling 6-11
Figure 6-5
30 MB CDC mechanical head locking
mechanism 6-13
Figure 6-6
Removing the Model 300/310 apparatus cage 6-14
Figure 6-7
Backplane slots -Models 300/310 6-15
Figure 6-8
Backplane slots -Model 400/400560 6-16
Figure 6-9
Filler plates
6-17
Figure 6-10
Breaking filler plates
6-17
Figure 6-11
Location of the memory card identification
number
6-18
Figure 6-12
MAU and PROM locations (ED board) 6-22
Figure 6-13 Removal of the MAU
6-23
Figure 6-14
PROM locations (CM190A)
6-25
Figure 6-15 3B2 600/700 computer, rear view 6-29
Figure 6-16 MPB and PE board numbering example in CM519B
backplane
6-36
Figure 6-17
3B2/600 subassemblies (ESDI disk drives)
6-38
Figure 6-18
3B2/600 computer, top view
6-39
Figure 6-19
Power supply header connectors, top view
6-42
Figure 6-20
Internal hard disk and SCSI cable
configurations
6-45
Figure 6-21 Emulex SCSI-to-ESDI
disk bridge controller
6-47
Figure 6-22
3B2/500 backplane layout 6-51
Figure 7-1
Removal of XM cabinet cover
7-2
Figure 7-2
XM drive adapter plate
7-3
Figure 7-3
XM adapter plate mounting/release
7-4
Figure 7-4
23 MB cartridge tape drive terminating resistor
7-4
Figure 7-5
Hard disk drive connectors
7-5
Figure 7-6
Floppy drive terminating resistor, top view
7-6
Figure 7-7
Cable routing number 1
7-7
Figure 7-8
Cable routing number 2
7-7
Figure 7-9
Removal of TM power supply
7-8
Figure 7-10
Disk control module, top view
7-10
Figure 7-11
ESDI disk module, top view
7-14
Figure 7-12
TM/60S tape module, top view
7-17
xii

Figure 7-13
XM405S -XM900S expansion module, top front
view
7-20
Figure 7-14
SCSI bridge controller 9-track tape drive (Keystone
II), rear view
7-25
Figure 7-15
SCSI bridge controller
7-26
Figure 7-16
1600 SCSI 9-track tape drive -control panel
7-28
Figure 7-17
Keystone III (KS23113) tape drive, rear view
7-33
Figure 7-18
Desktop autoloading dual density tape drive
(KS23495),
top view
7-35
Figure 7-19
9-track status control panel layout
7-36
Figure 7-20
Peripheral power control unit (PPCU) 7-41
Figure 8--1
Expanded ports card CM195BA
8-6
Figure 8--2 Serial
ports pinouts
8-9
Figure 8--3 Serial
ports loop-around connector 8-10
Figure 8--4 Parallel
port pinouts (CENTRONICS)
8-11
Figure 8--5 Parallel
port loop-around connector 8-12
Figure 8--6 Enhanced ports (EPORTS)
card CM195Y 8-13
Figure 8--7
Pinouts for DTR hardware flow control connector
(845754118)
8-15
Figure 8--8 Loop-around cable
wiring (CMl 95Y) 8-16
Figure 8--9 Loop-around cable
wiring (CM195AY)
8-16
Figure 8--10
Network interface (NI) card CM195A
8-17
Figure 8--11
Alarm interface circuit (AIC) CM195AA 8-21
Figure 8--12 Special test cable for RMPI AIC
8-22
Figure 8--13
Network access unit (NAU) card CM195U
8-25
Figure 8--14
Cartridge tape controller (CTC) card CM195H
8-26
Figure 8--15 Intelligent serial controller (ISC)
card CM195T
8-28
Figure 8--16 Synchronous RS-232-C Y cable
and installed ISC
card
8-29
Figure 8--17 ISC loopback connection for phases 15 and 16 8-31
Figure 8--18 ISC loopback connection for
phases 17 and 18
8-32
Figure 8--19 Pinout of Jl serial port connector
8-33
Figure 8--20
Pinout of J2 or J3 serial port connector
8-34
Figure 8--21 Expansion disk controller (XDC) card CM195K
8-35
Figure 8--22 General purpose synchronous controller (GPSC) card
CM195AE
8-37
Figure 8--23 V35 serial port connector cable
8-37
Figure 8--24 RS-232-C serial port connector cable
8-38
Figure 8--25 Output from the prtconf command
8-40
Figure 8--26
HA SCSI bus cable and HA SCSI bus
terminator 8-41
Figure 8--27 SCSI host
adapter card (HA1) CM195W and ID
switch setting
8-42
Figure 8--28 Differential host
adapter card (HA2) CM521A
8-43
Figure 8--29 3B2/600
computer - phase 17 printout
8-45
xiii

Figure 8-30
Datakit cards (DKIT) CM195AC and CM195AD
8-46
Figure 9-1
sysadm info response
9-4
Figure 9-2
Tape drive usage response
9-4
Figure 9-3
sysadm resetusage response
9-6
Figure 9--4
SCSI cartridge tape
9-7
Figure 9-5
Wangtek SCSI cartridge tape drive
9-10
Figure 9-6
Tape drive deaning components
9-11
Figure 9-7
Component deaning locations
9-13
Figure A-1
3B2/400 feature card removal tool
A-5
Figure B-1
dgmon response
B-2
Figure B-2
show output
B-6
Figure C-1
Creating a diagnostics floppy diskette C-2
Figure C-2
Program to execute response C-4
Figure C-3
Integral disk tools
C-8
Figure C--4 go response C-10
Figure C-5 Bytes per second response C-14
Figure C-6
Back-up defect table response
C-15
Figure C-7
Defect map response
C-15
Figure C-8 Type 1 response
C-16
Figure C-9 Drive number 1 response
C-20
Figure C-10 Cylinders verified response
C-21
Figure C-11 ddhs response
C-22
Figure C-12
Number of tracks response
C-23
Figure C-13
Sectors transferred response
C-27
Figure C-14
Disk-to-memory response
C-29
Figure C-15
Blocks to be copied response
C-30
Figure C-16
Bytes per sector response
C-34
Figure C-17 Back-up defect table response
C-35
Figure C-18
Interactive display
C-36
Figure C-19
Bytes per sector response
C-38
Figure C-20
Modify back-up defect table response
C-39
Figure C-21
Rebuild defect map response
C-39
Figure E-1
KS-23417, L1 -60 MB tape drive, Wangtek
E-4
Figure E-2
KS-23465, L1 -120 MB tape drive, Wangtek
E-5
Figure E-3
KS-23471, L3 (60 MB) and KS-23465, LlA/31/51 (120
MB) tape drive, Wangtek
E-6
Figure E-4
KS-23054, L1 -30 MB hard disk, CDC (ST-506)
E-7
Figure E-5
KS-23054, L2 - 72 MB hard disk, CDC (ST-506)
E-8
Figure E-6
KS-23054, L2 - 72 MB hard disk, Fujitsu (ST-506)
E-9
Figure E-7
KS-23371, L7 /13 -94/135 MB hard disk, Hitachi
(ESDJ)
E-10
Figure E-8
KS-23371, L17 -155 MB hard disk, CDC (ESDI)
E-11
Figure E-9
KS-23371, L31 -317 MB hard disk, Micropolis
(ESDI)
E-12
Figure E-10
KS-23483, L25 -155 MB hard disk, CDC (SCSI)
E-13
xiv

Figure E-11
Figure E-12
KS-23483, L3 -327 MB hard disk, CDC (SCSI)
KS-23483, L1B/11B -322 MB hard disk, HP
(SCSI)
xv
E-14
E-15

xvi

List of Tables
Table 1-1 Style Chart
1-6
Table 1-2 Engineering Drawings
1-9
Table 2-1 3B2 Hardware Versions 2-1
Table 2-2 Version 3 System Board and Backplane
Configurations
2-9
Table 2-3
Version 3 System Board Dependencies 2-21
Table 2-4
UNIX Release Compatibility 2-21
Table 3-1 SCSI Peripheral Device Naming Conventions
3-6
Table 3-2 PPCU Output
3-27
Table 4-1 LED Indicators (All 3B2 Computer Models)
4-7
Table 5-1 Firmware Vintage
5-3
Table 5-2
Troubleshooting - Firmware Error Messages
5-9
Table 5-2
Troubleshooting - Firmware Error Messages
(continued)
5-10
Table 5-2
Troubleshooting -Firmware Error Messages
(continued) 5-11
Table 5-2
Troubleshooting -Firmware Error Messages
(continued)
5-12
Table 5-2
Troubleshooting -'Firmware Error Messages
(continued)
5-13
Table 5-3
Troubleshooting - Other Errors and Conditions
5-14
Table 5-3
Troubleshooting - Other Errors and Conditions
(continued)
5-15
Table 5-3
Troubleshooting - Other Errors and Conditions
(continued)
5-16
Table 6-1
Model 300/310/400 Power Supply Pinouts
6-4
Table 6-2
Configuration Rules for 300/310 Power Supplies
6-5
Table 6-3
ED Series System Board Configurations 6-19
Table 6-4
PROM Identification
6-26
Table 6-5
3B2/500 Power Supply Pinouts
6-52
Table 7-1
Pinout Numbers
7-2
Table 7-2
DIP Switch and SCSI ID Settings
7-24
Table 7-3
Specifications for SCSI 9-Track Tape Drives
7-27
xvii

Table 7-4
Circuit Boards Used with the SCSI 9-Track Tape
Drives
7-29
Table 7-5
SCSI ID Switch Settings, 1600/6250 bpi 9-Track Tape
Drive
7-30
Table 7-6
Embedded SCSI Controller Switch Settings,
1600/6250
bpi 9-Track Tape Drive 7-31
Table 7-7
Hewlett-Packard 9-track Tape Drive Options 7-38
Table 8-1
Partial List of Device and Subdevice ID Codes
8-2
Table 8-2
Eight-Pin Modular Jacks 8-8
Table 8-3
EPORTS Eight-Pin Modular Jacks 8-14
Table 8-4
RMPI AIC Application Interface Specifications
8-20
Table 8-5
Remote Console Priorities
8-24
Table 8-6
ISC Diagnostic Failures and Phases 8-31
Table 9-1
Maintenance Schedule for Keystone Tape
Drives
9-12
Table 9-2 Tape Drive Cleaning Procedure
9-14
Table B-1
3B2 Computer Diagnostic Commands, Options, and
Descriptions B-4
Table B-2
Sample Diagnostic Phase Table B-5
Table B-3
Diagnostic Control Program Error Messages
B-10
Table C-1 Version 2 and Version 3 Devices
C-5
Table C-2
Disk Drive Specifications
C-32
Table D--1 3B2 Computer Spare Parts D-3
Table D--1
3B2 Computer Spare Parts (continued)
D-4
Table D-1
3B2 Computer Spare Parts (continued) D-5
Table D-1
3B2 Computer Spare Parts (continued) D-6
Table D-1
3B2 Computer Spare Parts (continued) D-7
Table D-1
3B2 Computer Spare Parts (continued) D-8
Table D-1
3B2 Computer Spare Parts (continued)
D-9
Table D-1
3B2 Computer Spare Parts (continued)
D-10
Table D-1
3B2 Computer Spare Parts (continued) D-11
Table D-1
3B2 Computer Spare Parts (continued) D-12
Table E-1
Terminating Resistor Information
E-2
Table E-2
SCSI Module ID Cables
E-3
xviii

Chapter 1: Introduction
Contents
About This Document 1-1
Purpose 1-1
Intended Audiences 1-1
Prerequisite Skills and Knowledge 1-1
How to Use This Document 1-3
Conventions Used in This Document
Related Leaming Support Materials
Related Documents 1-8
Related Training 1-10
How to Order Documents 1-11
How to Receive Training Information 1-11
Additional Support and Information 1-11
How to Make Comments About This Document
1-S
1-12
Introduction 1-i