Compaq DS20E - AlphaStation - 1 GB RAM, AlphaServer DS20E Reference Manual

AlphaServer DS20E
AlphaStation DS20E

Reference Guide

Order Number: ER-K8F6W-UA. D01

This manual is for managers and operators of Compaq
AlphaServer DS20E / AlphaStation DS20E systems.

Compaq Computer Corporation

Revised, August 2000

© 2000 Compaq Computer Corporation.
COMPAQ, the Compaq logo, and A lph aS erver Reg is ter ed i n U . S. Patent and Trademark Offi ce.

OpenVMS and Tru64 are trademarks of Compaq Information Technologies Group, L.P.
Linux is a regist ered tradem ark of Linus To rvalds in sever al c ountries. UNIX is a registe red tradema rk

of The Open Group in th e U . S. and othe r countries.
All other product names mentioned herein may be trademarks of their respective companies.
Compaq shall not be liable for technical or editorial errors or omissions contained herein. The

information in this document is subject to change without notice.

Contents

Preface ........................................................................................................................xi

Chapter 1 System Overview

1.1 System Enclosures................................................................................ 1-2

1.2 System Parts (Front/Side View)............................................................ 1-4

1.3 System Parts (Rear View)..................................................................... 1-6

1.4 Operator Control Panel......................................................................... 1-8

1.5 System Board ...................................................................................... 1-10

1.6 Server Feature Module ....................................................................... 1-12

1.7 PCI Slots ............................................................................................. 1-14

1.8 Power Supplies.................................................................................... 1-16

1.9 Removable Media Storage................................................................... 1-18

1.10 Hard Disk Drive Storage..................................................................... 1-19

1.11 Two-Way Combination Module........................................................... 1-20

1.12 Console Terminal................................................................................ 1-21

Chapter 2 Installing the Pedestal System

2.1 System Dimensions and Service Area...................................................2-2

2.2 Power Requirements............................................................................. 2-3

2.3 Shipment Box........................................................................................ 2-4

2.4 Pedestal Setup ......................................................................................2-5

2.5 System Access ....................................................................................... 2-6

2.6 Installing a Pedestal Kit ....................................................................... 2-7

Chapter 3 Installing the Rackmount System

3.1 Rackmount Documentation................................................................... 3-2

3.2 Power Requirements............................................................................. 3-3

3.3 Shipment Box........................................................................................ 3-4

3.4 Marking the Installation Area.............................................................. 3-5

3.5 Rack Accessories ................................................................................... 3-6

3.6 Preparing the System Chassis.............................................................. 3-8

3.7 Preparing the Rack ............................................................................. 3-12

iii

3.8 Installing the System Chassis............................................................. 3-16

3.9 Installing the Interlock System .......................................................... 3-18

3.10 Installing the Cable Management Arm .............................................. 3-20

3.11 Dressing the Cables ............................................................................ 3-22

3.12 Attaching the Front Bezel................................................................... 3-24

Chapter 4 Booting and Installing an Operating System

4.1 Setting Boot Options............................................................................. 4-2

4.1.1 auto_action...................................................................................... 4-3

4.1.2 bootdef_dev ..................................................................................... 4-5

4.1.3 boot_file........................................................................................... 4-6

4.1.4 boot_osflags..................................................................................... 4-7

4.1.5 ei*0_inet_init or ew*0_inet_init.................................................... 4-11

4.1.6 ei*0_protocols or ew*0_protocols................................................... 4-12

4.2 Booting Tru64 UNIX........................................................................... 4-13

4.2.1 Booting Tru64 UNIX over the Network........................................ 4-16

4.3 Starting a Tru64 UNIX Installation ................................................... 4-18

4.4 Booting Linux...................................................................................... 4-20

4.5 Booting OpenVMS............................................................................... 4-24

4.6 Booting OpenVMS from the InfoServer.............................................. 4-26

4.7 Starting an OpenVMS Installation..................................................... 4-28

Chapter 5 Configuring and Installing Components

5.1 Preparing to Install Components.......................................................... 5-2

5.2 Removing the Side Cover (Pedestal)..................................................... 5-3

5.3 Removing the Top Cover (Rackmount) ................................................. 5-5

5.4 Memory Configuration.......................................................................... 5-6

5.4.1 Installing and Removing DIMMs ................................................... 5-8

5.5 CPU Configuration.............................................................................. 5-10

5.6 Installing a PCI or ISA Option ........................................................... 5-11

5.6.1 Installing a PCI Option................................................................. 5-12

5.6.2 Installing a Multichannel SCSI Option........................................ 5-14

5.7 Installing a Redundant Power Supply................................................ 5-16

5.8 Network Configuration ....................................................................... 5-18

5.9 Disk Drive Configuration.................................................................... 5-20

5.10 Installing Disk Drives ......................................................................... 5-22

5.10.1 Drive Status LEDs........................................................................ 5-24

5.11 Configuring the Storage Subsystem ................................................... 5-26

5.11.1 Connecting a Four-Slot Subsystem............................................... 5-26

5.11.2 Installing a Six-Slot Subsystem.................................................... 5-28

iv

5.12 Installing a Tape Drive ....................................................................... 5-35

5.13 External SCSI Expansion ................................................................... 5-37

5.14 AlphaBIOS Configuration Utilities..................................................... 5-38

5.15 Updating Firmware ............................................................................ 5-41

5.15.1 Sources of Firmware Updates....................................................... 5-42

5.15.2 Updating Firmware from the CD-ROM........................................ 5-43

Chapter 6 Remote Management Console

6.1 RMC Overview ......................................................................................6-2

6.2 Connecting to RMC............................................................................... 6-3

6.3 Modem Setup ........................................................................................ 6-4

6.4 Dial-In Procedure.................................................................................. 6-5

6.5 Halt Assertion....................................................................................... 6-7

6.6 RMC Commands................................................................................... 6-8

6.7 RMC Switch Pack ............................................................................... 6-14

6.7.1 Changing a Switch Setting ........................................................... 6-16

6.7.2 Resetting the RMC to Factory Defaults........................................ 6-17

6.8 Troubleshooting .................................................................................. 6-18

Chapter 7 Using the SRM Console

7.1 SRM Console Overview......................................................................... 7-2

7.1.1 Invoking the SRM Console ............................................................. 7-4

7.2 Command Summary ............................................................................. 7-5

7.3 Getting Help........................................................................................ 7-10

7.4 Displaying the Configuration.............................................................. 7-12

7.5 Displaying the Bootable Devices......................................................... 7-16

7.6 Displaying the Memory Configuration ............................................... 7-18

7.7 Displaying the Power Status............................................................... 7-19

7.8 Displaying the SRM Console Version ................................................. 7-20

7.9 Displaying the CPU Status................................................................. 7-21

7.10 Displaying the PALcode Version......................................................... 7-22

7.11 Booting an Operating System............................................................. 7-23

7.12 Configuring the ISA Bus..................................................................... 7-25

7.13 Testing the System.............................................................................. 7-28

7.14 Starting and Stopping CPUs............................................................... 7-30

7.14.1 halt (or stop).................................................................................. 7-30

7.14.2 continue ........................................................................................ 7-30

7.15 Updating Firmware ............................................................................ 7-32

7.16 Forcing a System Crash Dump........................................................... 7-36

7.17 Initializing the System........................................................................ 7-37

v

7.18 Reading a File ..................................................................................... 7-38

7.19 Configuring a PCI NVRAM Module.................................................... 7-40

7.20 Creating a Power-Up Script................................................................ 7-41

7.21 Loading AlphaBIOS ............................................................................ 7-43

7.22 Setting Console Security..................................................................... 7-44

7.22.1 Overview of Secure Mode.............................................................. 7-44

7.22.2 Setting the Console Password....................................................... 7-45

7.22.3 Setting the Console to Secure Mode ............................................. 7-47

7.22.4 Turning Off Security During a Console Session........................... 7-48

7.22.5 Returning to User Mode ............................................................... 7-51

7.23 Setting and Viewing Environment Variables..................................... 7-52

7.23.1 com*_baud .................................................................................... 7-56

7.23.2 console........................................................................................... 7-57

7.23.3 cpu_enabled .................................................................................. 7-58

7.23.4 ei*0_mode or ew*0_mode.............................................................. 7-60

7.23.5 kbd_hardware_type ...................................................................... 7-61

7.23.6 language........................................................................................ 7-62

7.23.7 os_type .......................................................................................... 7-63

7.23.8 pci_parity ...................................................................................... 7-64

7.23.9 pk*0_fast....................................................................................... 7-65

7.23.10 pk*0_host_id ................................................................................. 7-66

7.23.11 pk*0_soft_term.............................................................................. 7-67

7.23.12 tt_allow_login................................................................................ 7-69

Chapter 8 Troubleshooting

8.1 Error Beep Codes .................................................................................. 8-2

8.2 Diagnostic LEDs on OCP ...................................................................... 8-3

8.3 Power Problems..................................................................................... 8-4

8.4 Console-Reported Failures.................................................................... 8-5

8.5 Boot Problems ....................................................................................... 8-6

8.6 Thermal Problems and Environmental Status..................................... 8-8

8.7 Operating System Reported Failures ................................................... 8-9

8.8 Memory Problems ............................................................................... 8-10

8.9 PCI Bus Problems............................................................................... 8-11

8.10 SCSI Problems .................................................................................... 8-12

8.11 Fail-Safe Booter Utility....................................................................... 8-13

8.11.1 Starting the FSB........................................................................... 8-13

8.11.2 Preparing Diskettes...................................................................... 8-15

8.11.3 Updating Firmware ...................................................................... 8-16

vi

Chapter 9 Specifications

9.1 Physical Specifications.......................................................................... 9-2

9.2 Environmental Specifications ............................................................... 9-4

9.3 Electrical Specifications........................................................................ 9-5

9.4 Acoustical Data ..................................................................................... 9-7

9.5 Power Cord Requirements .................................................................... 9-8

9.5.1 General Requirements.................................................................... 9-8

9.5.2 Country-Specific Requirements...................................................... 9-9

Appendix A Regulatory and Safety Notices

A.1 Class A and Class B Ratings.................................................................A-1

A.1.1 Class A Device Notices....................................................................A-2

A.1.2 Class B Device Notices....................................................................A-4

A.2 Other Safety Notices.............................................................................A-6

A.2.1 Laser Devices..................................................................................A-6

A.2.2 Battery Replacement ......................................................................A-7

Index

vii

Examples

4–1 Booting Tru64 UNIX from a Local SCSI Disk .................................... 4-13

4–2 RIS Boot .............................................................................................. 4-16

4–3 Text-Based Installation Display ......................................................... 4-18

4–4 Linux Boot Output.............................................................................. 4-21

4–5 Booting OpenVMS from the Local CD-ROM Drive............................. 4-24

4–6 InfoServer Boot ................................................................................... 4-26

4–7 OpenVMS Installation Menu.............................................................. 4-28

7–1 Help (or Man)...................................................................................... 7-10

7–2 Show Config ........................................................................................ 7-12

7–3 Show Device........................................................................................ 7-16

7–4 Show Memory...................................................................................... 7-18

7–5 Show Power......................................................................................... 7-19

7–6 Show Version ...................................................................................... 7-20

7–7 Show Cpu ............................................................................................ 7-21

7–8 Show Pal.............................................................................................. 7-22

7–9 Tru64 UNIX Boot (Abbreviated)......................................................... 7-23

7–10 Isacfg ................................................................................................... 7-25

7–11 Test...................................................................................................... 7-28

7–12 Halt and Continue............................................................................... 7-30

7–13 Updating Firmware from Floppy ........................................................ 7-32

7–14 Crash................................................................................................... 7-36

7–15 Init....................................................................................................... 7-37

7–16 More .................................................................................................... 7-38

7–17 Prcache................................................................................................ 7-40

7–18 Editing the Nvram Script ................................................................... 7-41

7–19 Clearing the Nvram Script.................................................................. 7-41

7–20 AlphaBIOS .......................................................................................... 7-43

7–21 Set Password ....................................................................................... 7-45

7–22 Set Secure ........................................................................................... 7-47

7–23 Login ................................................................................................... 7-48

7–24 Clear Password ................................................................................... 7-51

7–25 Set envar and Show envar................................................................... 7-52

7–26 User-Created Environment Variable .................................................. 7-52

8–1 Running LFU ...................................................................................... 8-16

viii

Figures

1–1 DS20E System Variants ....................................................................... 1-2

1–2 System Parts ......................................................................................... 1-4

1–3 Ports and Connectors............................................................................ 1-6

1–4 Control and Status Indicators............................................................... 1-8

1–5 System Board ...................................................................................... 1-10

1–6 Server Feature Module ....................................................................... 1-12

1–7 PCI Slots (Rack Orientation) .............................................................. 1-14

1–8 Power Supplies (Pedestal Orientation)............................................... 1-16

1–9 Removable Media Storage................................................................... 1-18

1–10 Four-Slot and Six-Slot Storage Subsystems ....................................... 1-19

1–11 Combination Module ........................................................................... 1-20

1–12 Console Terminal Connections............................................................ 1-21

2–1 System Dimensions............................................................................... 2-2

2–2 Power Supply Requirements................................................................. 2-3

2–3 Unpacking the Shipment ...................................................................... 2-4

2–4 Cabling the System ............................................................................... 2-5

2–5 System Lock and Key............................................................................ 2-6

2–6 Pedestal Kit Contents ........................................................................... 2-8

2–7 Installing the Lower Panel.................................................................. 2-10

2–8 Installing the Upper Panel ................................................................. 2-12

2–9 Installing the Side Dress Panel .......................................................... 2-13

2–10 Installing the Side Access Cover ......................................................... 2-14

2–11 Installing the Door .............................................................................. 2-15

3–1 Power Requirements and Connections ................................................. 3-3

3–2 Rackmount System Shipment Box........................................................ 3-4

3–3 Rackmount Installation Area................................................................ 3-5

3–4 Mounting Hardware.............................................................................. 3-6

3–5 Attaching Mounting Brackets to Chassis ............................................. 3-8

3–6 Attaching Slide Brackets to Slides...................................................... 3-10

3–7 Attaching Slide Brackets to Rack Rails .............................................. 3-12

3–8 Stabilizing the Rack............................................................................ 3-14

3–9 Installing the System into an M-Series Rack ..................................... 3-16

3–10 Installing Shipping Screws ................................................................. 3-17

3–11 Installing the Interlock System .......................................................... 3-18

3–12 Installing the Cable Management Arm .............................................. 3-20

3–13 Dressing the Cables ............................................................................ 3-22

3–14 Attaching the Front Bezel................................................................... 3-24

5–1 Removing the Side Cover...................................................................... 5-3

5–2 Attaching the Antistatic Wrist Strap.................................................... 5-4

ix

5–3 Removing Top Cover ............................................................................. 5-5

5–4 Memory Slot Locations.......................................................................... 5-6

5–5 Installing DIMMs.................................................................................. 5-8

5–6 Removing DIMMs ................................................................................. 5-9

5–7 PCI Slots (Rack Orientation) .............................................................. 5-11

5–8 Installing a PCI Option ....................................................................... 5-12

5–9 Multichannel SCSI Installation.......................................................... 5-14

5–10 Adding a Third Supply (Pedestal Orientation) ................................... 5-16

5–11 Network Connection............................................................................ 5-18

5–12 Installing and Removing Disk Drives................................................. 5-22

5–13 Disk Drive LEDs ................................................................................. 5-24

5–14 Subsystem Backplane Connections..................................................... 5-26

5–15 Tape Drive Installation ....................................................................... 5-35

5–16 AlphaBIOS Boot Screen ...................................................................... 5-38

5–17 AlphaBIOS Setup Menu...................................................................... 5-39

5–18 Run Maintenance Program Dialog Box .............................................. 5-40

5–19 Loadable Firmware Update Utility..................................................... 5-41

6–1 RMC Connections.................................................................................. 6-4

6–2 RMC Switch Pack Defaults................................................................. 6-14

8–1 LED Patterns During Power-Up (Rack Orientation)............................ 8-3

8–2 FSB Switch "On" Setting (Rackmount Orientation).......................... 8-14

Tables

2–1 Pedestal Kit Contents ........................................................................... 2-9

3–1 Mounting Hardware Description .......................................................... 3-7

4–1 OpenVMS Boot Flag Settings ............................................................... 4-9

5–1 Four-Slot SCSI ID Orientation ........................................................... 5-20

5–2 Six-Slot SCSI ID Orientation.............................................................. 5-21

5–3 Drive Status........................................................................................ 5-25

6–1 RMC Command Summary.................................................................... 6-8

6–2 Status Command Fields...................................................................... 6-13

6–3 RMC Switch Pack Functions............................................................... 6-15

6–4 Troubleshooting RMC ......................................................................... 6-18

7–1 Summary of SRM Console Commands .................................................7-5

7–2 Notation Formats for SRM Console Commands................................... 7-7

7–3 Special Characters for SRM Console .................................................... 7-8

7–4 Device Naming Conventions............................................................... 7-16

7–5 PCI Address Assignments................................................................... 7-17

7–6 Environment Variable Summary........................................................ 7-54

8–1 Error Beep Codes .................................................................................. 8-2

8–2 Troubleshooting Power Problems ......................................................... 8-4

x

8–3 Troubleshooting Console-Reported Failures......................................... 8-5

8–4 Troubleshooting Boot Problems ............................................................ 8-6

8–5 Operating System Reported Failures ................................................... 8-9

8–6 Troubleshooting Memory Problems .................................................... 8-10

9–1 Physical Specifications.......................................................................... 9-2

9–2 Environmental Specifications ............................................................... 9-4

9–3 Electrical Specifications........................................................................ 9-5

9–4 Acoustical Data ..................................................................................... 9-7

9–5 Power Cord Requirements by Country ................................................. 9-9

xi

Preface

Intended Audience

This manual is for managers and operators of Compaq AlphaServer DS20E /
AlphaStation DS20E systems.

WARNING: To prevent injury, access to internal components is
limited to persons who have appropriate technical training and
experience. Such persons are expected to understand the
hazards of working within this equipment and take measures to
minimize danger to themselves or others. These measures
include:

1. Remove any jewelry that may conduct electricity.

2. Wear an anti-static wrist strap when handling internal
components.

Document Structure

This manual uses a structured documentation design. Topics are organized into
small sections, usually consisting of two facing pages. Most topics begin with an
abstract that provides an overview of the section, followed by an illustration or
example. The facing page contains descriptions, procedures, and syntax
definitions.

This manual has nine chapters and one appendix.

• Chapter 1, System Overview, describes the components of the system.

• Chapter 2, Installing the Pedestal System, gives procedures for setting

up the pedestal system.

• Chapter 3, Installing the Rackmount System, gives procedures for

installing the rack-mountable system into an M-Series cabinet.

xiii

Chapter 4, Booting and Installing an Operating System, explains the
SRM boot environment variables and gives examples of booting Tru64 UNIX,
OpenVMS, and Linux.

Chapter 5, Configuring and Installing Components, shows how to
configure and install components such as memory DIMMs and PCI options.

Chapter 6, Remote Management Console, explains how to use the Remote
Management Console to monitor and control the system.

Chapter 7, Using the SRM Console, describes the SRM commands and
environment variables used to configure the system.

Chapter 8, Troubleshooting, gives basic troubleshooting procedures.

Chapter 9, Specifications, lists the physical, electrical, and environmental

specifications for the system.

Appendix A, Regulatory and Safety Notices, supplies the regulatory
information for Class A and Class B systems as well as safety notices.

Documentation Titles

Table 1 Documentation

Title Order Number

DS20E Reference Guide ER-K8F6W-UA

DS20E Basic Installation ER-K8F6W-IM

DS20E Processor Upgrade ER-PD12U-UG

KN311 CPU Installation Card EK-DSCPU-IN

Memory Option Installation Card EK-MS340-IN

H9A10/H9A15 Rack-Mounting
Template

Release Notes EK-K8F6W-RN

EK-DS20E-TP

xiv

Information on the Internet

Visit the following Compaq DS20E Web site for support resources for this
system.

http://www.compaq.com/alphaserver/ds_series.html

Information and files for performing firmware updates is available at:

ftp://ftp.digital.com/pub/Digital/Alpha/firmware/readme.html

xv

Chapter 1

System Overview

This chapter provides an overview of the AlphaServer/AlphaStation DS20E
system, including:

• System enclosures

• System parts (front/side view)

• System parts (rear view)

• Operator control panel

• System board

• Server feature module

• PCI slots

• Power supplies

• Removable media storage

• Hard disk drive storage

• Two-way combination module

• Console terminal

System Overview 1-1

1.1 System Enclosures

The DS20E family consists of a standalone pedestal and a rackmount
system.

Figure 1–1 DS20E System Variants

Rackmount

DS20E Reference Guide

1-2

Pedestal

CAT0039

Enclosure

The system is housed in an enclosure containing the system board, other logic
modules, and two power supplies (maximum of three) with internal fans. The
enclosure has bays for internal mass-storage devices, including a combination
IDE CD-ROM/floppy disk drive, one available half-height removable bay, and
either four 1.6-inch or six
1-inch hot-swap drive bays. An operator control panel includes Power, Reset,
and Halt buttons.

The system can be used as a desk-side pedestal in the vertical position, or with
the addition of brackets, can be mounted in the horizontal position in a
standard rack.

Common Components

The basic building block of the system is the chassis, which houses the following
common components:

• Up to two CPUs, based on the 21264 Alpha chip

• Up to 16, 200-pin memory DIMMs

• Five 64-bit PCI slots and one shared 32-bit ISA or 64-bit PCI slot

• A removable media bay that accommodates one 5-25-inch slim- height

CD/floppy disk combination drive and one 5.25-inch half- height tape device

• One storage disk cage that houses four 1.6-inch drives or a cage that houses

six 1.0-inch drives

• Two 375-watt power supplies and a bay for a third supply for redundancy

• Two serial ports and one parallel port for external options

• An operator control panel with a Power button, Halt button, and Reset

button, and diagnostic LEDs

System Overview 1-3

1.2 System Parts (Front/Side View)

Figure 1–2 identifies the main components of the system in a pedestal
version. Components visible from the front and with the side panel
removed are shown.

Figure 1–2 System Parts

5

6

7

8

4

3

2

1

9

2

4

1

10

1

CAT0151b

DS20E Reference Guide

1-4

Front Components

➊
➋
➌

Removable side cover

Symbios SCSI adapter board

System board

➍ CPU modules
➎ Server feature module
➏ Operator control panel (OCP)
➐
➑
➒
➓
①
②

Removable media drive bay

Combination CD-ROM/floppy drive

Hard disk drives

Door

Power supplies

Storage subsystem

System Overview 1-5

1.3 System Parts (Rear View)

Figure 1–3 shows the system ports and connectors on the rear of the
chassis.

Figure 1–3 Ports and Connectors

1

10

9

2

8

7

6

5

4

3

2

3

1

CAT0019A

DS20E Reference Guide

1-6

Rear Components

➊
➋
➌

SCSI breakouts

One shared 64-bit PCI/ 16-bit ISA slot

Five 64-bit PCI slots

➍ AC power inlet
➎ Ethernet port
➏ Mouse port
➐
➑
➒
➓
➀

Keyboard port

Universal serial bus (USB) (not supported)

Serial port (COM1)

Serial port (COM2)

Parallel port

➁ System fan 0
➂ System fan 1

System Overview 1-7

1.4 Operator Control Panel

The operator control panel provides system controls and status
indicators. The controls are the Power, Halt, and Reset buttons. The
panel has a green power LED, a yellow halt LED, and four diagnostic
LEDs.

Figure 1–4 Control and Status Indicators

1234

6

2

1

3

4

5

CAT0018A

DS20E Reference Guide

1-8

➊

Power button. This button is a latching switch. Pressing the
Power button on powers on the system. Pressing the button to
standby turns off all DC voltages except Aux 5 volts. The 5 volt
standby powers the remote management console (RMC). See
Chapter 6.

➋
➌

➍

➎
➏

Remote Commands

If the system is being managed remotely, commands issued at the remote
management console (RMC) can be used to emulate the functions of the
operator control panel. See Chapter 6.

RMC Command Function

poweron

Power LED (green). Lights when the Power button is pressed.

Reset button. A momentary contact switch that restarts the
system and reinitializes the console firmware.

Halt LED. Halt condition (yellow). Lights when you press the
Halt button.

Halt button. Halts the system. Momentary contact switch.

Diagnostic LEDs. Programmable by software. Blink at various
console states. See Chapter 8 for details.

Turns on power. Emulates pressing the Power
button to the On position.

poweroff

reset

halt

haltin

haltout Releases a halt created with haltin.

Turns off power. Emulates pressing the Power
button to the Off position.

Resets the system. Emulates pressing the
Reset button.

Halts the system.

Halts the system and causes the halt to remain
asserted.

System Overview 1-9

1.5 System Board

The system board contains slots for CPUs, memory DIMMs, and I/O
options.

Figure 1–5 System Board

2

BA

3

1

3

4

5

➊

CPU slots (CPU0 is right slot) ➍ IDE

➋

I/O slots ➎ Floppy

➌

Memory slots ➏ SCSI

DS20E Reference Guide

1-10

6

1

1

CAT0030

All memory and I/O components are located on a single system board that
contains a memory subsystem, PCI bus, ISA bus, integrated SCSI
fast/wide/Ultra I/O controllers, and option slots for PCI-based and ISA-based
option modules.

Processor Module

The system supports up to two processor modules that can be installed on the
system board. Each processor module contains a 21264 microprocessor. The
21264 microprocessor is a superscalar chip with out-of-order execution and
speculative execution to maximize speed and performance. It contains four
integer execution units and dedicated execution units for floating-point add,
multiply, and divide. The chip also has an integrated instruction cache and a
data cache. Each cache consists of a 64 KB two-way set associative, virtually
addressed cache divided into 64-byte blocks. The data cache is a physically
tagged, write-back cache.

The EV6 (500 MHz) processor module contains 4 MB secondary
B-cache (backup cache) consisting of late-write synchronous DRAMs (dynamic
random access memory) that provide low latency and high bandwidth. The
EV67 (667 MHz) processor module has an 8 MB DDR (dual data rate). See the
documentation that accompanies a processor upgrade for instructions on
installing additional processors.

Memory

The system supports up to four banks of memory on the system board. Each
bank contains four slots for a total of 16 slots. The system uses 200-pin buffered
synchronous dual in-line memory module (DIMMs). See Chapter 5 for
instructions on installing DIMMs.

System Overview 1-11

1.6 Server Feature Module

A separate server feature module (SFM) affixed to the system chassis
monitors environmental conditions in the system. The SFM supports
the two system fans and three power supplies and monitors the state of
the CPU fans on the system board.

Figure 1–6 Server Feature Module

1

J1

6

7

J2

ON

S1

OFF

J7

J6

45

➊

Power connector

➋

Operator control panel connector

➌

Main logic board connector

➍

Fan 0 connector

2

J3

J5

3

PK0981

➎

Fan 1 connector

➏

Side cover interlock connector

➐

RMC switch pack (see Chapter 6)

DS20E Reference Guide

1-12

N+1 Fan Configuration

The SFM supports and monitors the two system fans. For optimal cooling, both
fans are always running. If one of the fans fails or is hot-swapped for servicing,
the system continues to function with the other fan running at full speed.

The fan thermostat is set to drive the fans at their minimum speed in
environments below 26ºC to keep noise levels low. As system temperature rises,
the fan speed increases to increase cooling. If the system temperature rises
above 55ºC (due to high system loads or high ambient temperature), the system
software receives an I/O interrupt and the system shuts down within 30
seconds.

Cover Interlock

The SFM has a side cover interlock connector that prevents the system from
operating with the system cover open. System power cannot be turned on until
the cover is closed. If the cover is opened while the system is running, power
shuts off immediately.

System Overview 1-13

1.7 PCI Slots

The system board has six, 64-bit PCI slots, one of which is a
combination PCI/ISA slot. The callouts in Figure 1–7 show the PCI slot
locations on the system board. Slot 1
only. Slots 2 through 6 support a full-length card. Slot 6
with an ISA slot (ISA slot 1).

Figure 1–7 PCI Slots (Rack Orientation)

4 3

5

6

2 1

➊ supports a half-length card

➏ is shared

DS20E Reference Guide

1-14

CAT0046

The system uses a Cypress South Bridge chip (CY82C698), which is a highly
integrated peripheral solution for PCI-based motherboards. It provides a bridge
between the PCI bus, ISA bus, and the IDE peripherals. See Chapter 5 for
information on installing PCI options.

System Overview 1-15

1.8 Power Supplies

The system comes with two 375-watt power supplies that are connected
in parallel. A third power supply can be added for redundancy. Power
supply 0 (PS0) is the leftmost supply in a pedestal system and the
topmost supply in a rackmount system.

Figure 1–8 Power Supplies (Pedestal Orientation)

NOTE: On a system with two power supplies, a power supply blank is installed

to maintain the proper airflow.

DS20E Reference Guide

1-16

CAT0043

A power backplane integrates the supplies for power distribution, monitoring,
and control. The power supplies can be accessed and removed through the front
of the enclosure. See Chapter 5 for instructions on adding or replacing a power
supply.

The following voltages are provided: +3.3, +5.0, +12.0, –12.0, +5.0 Aux (+5.0 Aux
always powered). Two internal fans cool the power supply. The fans are
temperature controlled and speed up as the power supply temperature
increases.

N+1 Power Supply Configuration

Two power supplies must be installed and working for the system to operate.
The system shuts down if the number of working power supplies ever falls
below two. In a three-power-supply configuration, a power supply may be
removed for servicing without interrupting system operation. An I/O interrupt
is generated whenever the number of power supplies in operation changes.

System Overview 1-17

1.9 Removable Media Storage

The removable media area contains the removable media bay, which
accommodates one 5.25-inch, half-height tape device and a combination
CD-ROM/FDD drive.

Figure 1–9 Removable Media Storage

1

➊ Removable media bay
➋ CD-ROM drive
➌ FDD drive

DS20E Reference Guide

1-18

2

3

CAT0050

1.10 Hard Disk Drive Storage

The system comes with either a four-slot storage subsystem that holds

1.6-inch drives or a six-slot storage subsystem that holds 1.0-inch
drives. Figure 1–10 shows the storage subsystems.

Figure 1–10 Four-Slot and Six-Slot Storage Subsystems

The storage system backplane contains on-board multimode terminators that
provide LVD (low voltage differential) termination to the bus when all devices
are LVD. If an SE (single-ended) device is installed in the backplane, the
terminators automatically switch to SE mode termination. All devices on the
bus will operate in SE mode and all transactions will be subject to SE speed and
length limitations.

DVA00047b

System Overview 1-19

1.11 Two-Way Combination Module

The system supports an optional two-way combination module that can
be installed in PCI slot 1. The combination board saves a PCI slot by
sharing VGA and Ethernet functions. The Ethernet portion of the
combination board uses the Intel 82558 chip.

Figure 1–11 Combination Module

The combination module features 2D/3D video (with 4 MB VRAM), along with
10/100 MB Fast Ethernet. The module provides connections for the VGA (Video
Permedia 2) and the Ethernet (NIC functions). You can order the module from
Compaq.

DS20E Reference Guide

1-20

CAT0042

1.12 Console Terminal

The console terminal can be a serial (character cell) terminal
connected to the COM1 port or a VGA monitor connected to a VGA
adapter on PCI slot 1. When a VGA monitor is connected, a keyboard
and mouse must also be connected.

Figure 1–12 Console Terminal Connections

VT

VGA

CAT0053

A

System Overview 1-21

Chapter 2

Installing the Pedestal System

This chapter describes how to set up the pedestal system. It also gives
instructions for converting a rackmount system to a pedestal system. The
following topics are covered:

• System dimensions and service area

• Power requirements

• Shipment box

• Pedestal setup

• System access

• Installing a pedestal kit

WARNING: The system is very heavy. Two people are needed to
lift and maneuver it.

Installing the Pedestal System 2-1

2.1 System Dimensions and Service Area

Figure 2–1 shows the system dimensions and the clearance needed to
access the pedestal system for servicing.

Figure 2–1 System Dimensions

44.8 cm
(17.6 in)

22.1 cm
(8.7 in)

74.7 cm
(29.4 in)

PK3212

2-2 DS20E Reference Guide

2.2 Power Requirements

The system automatically detects the voltage source when it powers up,
and adjusts the power supply input to accept that voltage. Figure 2–2
shows maximum current ratings for a fully loaded system (without
monitor or terminal). It also shows where to plug in the AC power
connector. Power supply ratings and power cord requirements are
given in Chapter 9.

Figure 2–2 Power Supply Requirements

100-120VAC 7.5A 50/60 Hz

220-240VAC 3.8A 50/60 HZ

CAT0013

Installing the Pedestal System 2-3

2.3 Shipment Box

The pedestal system is shipped in a single box. The system chassis is
completely assembled, with all modules installed. Instructions for
unpacking are in the accessories tray
this reference guide are also in the tray, along with other accessories.

Figure 2–3 Unpacking the Shipment

➊. An installation document and

1

2-4 DS20E Reference Guide

CAT0044a

2.4 Pedestal Setup

Connect the cabling as shown in Figure 2–4.

Figure 2–4 Cabling the System

➊
➋

4

3

VGA

1

AC power connector

Mouse

5

2

6

ENET

7

CAT0017c

➌
➍

Keyboard

Monitor

➎ Printer
➏

Modem with 10/100Base-T network cable connection ➐, if option

ordered

Installing the Pedestal System 2-5

2.5 System Access

The system has a key lock that is located on the front door to prevent
unauthorized access. The removable media devices and the system
control panel are accessible through an upper front door that opens by
sliding down the lock latch as shown in Figure 2–5.

Figure 2–5 System Lock and Key

2-6 DS20E Reference Guide

CAT0024

2.6 Installing a Pedestal Kit

This section is for customers who ordered a pedestal kit. The pedestal
kit is used to convert a rackmount system to a pedestal.

CAUTION: The system is very heavy. Two people are needed to lift and

maneuver it.

NOTE: Before you begin the conversion procedure, shut down the operating

system, turn off power to the system, and unplug the power cord. Review
Figure 2–6 and Table 2–1 to verify the contents of the pedestal kit.

Installing the Pedestal System 2-7

Figure 2–6 Pedestal Kit Contents

5

8

8

1

7

9

6

4

2

7

3

3

PKO980

2-8 DS20E Reference Guide

Table 2–1 Pedestal Kit Contents

Hardware Part Number Quantity

➊

Upper panel 74-60248-01 1

➋

Lower panel 74-60248-02 1

➌

Slide feet 74-51716-01

➍

Side dress panel 74-60250-01 1

➎

Side access cover
(painted)

74-60247-02 1

➏ Front door assembly 70-40254-01 1

2 (may already be installed on

➋)

➐ Screws, M3x6mm 90-09984-20

➑

Thumbscrews 74-60270-02 2

➒

Door 74-60337-01 1

9 (for attaching slide feet. If slide
feet are attached, only 1 screw
loose piece.)

Installing the Pedestal System 2-9

Figure 2–7 Installing the Lower Panel

2

1

2-10 DS20E Reference Guide

PK3215

Conversion Procedure

Remove the top cover from the rack system by loosening the captive screw

1.
and sliding the cover to the rear. Set aside the cover; it will not be reused.

Rotate the system chassis so that the operator control panel (OCP) ➊ is at

2.
the lower right.

Place the lower panel slide feet up ➋, with the large tabs to the right as you

3.
face the front of the unit. Slide the panel to the left and seat it firmly.
Insert a thumbscrew through the tab into the insert and tighten. See
Figure 2–7.

Turn the chassis over and rest it on the slide feet. The OCP should now be

4.
at the upper left as you face the chassis.

Continued on next page

Installing the Pedestal System 2-11

Place the upper panel with the painted surface up and the large tabs to the

5.
left on the top of the unit. Slide the panel to the right. Insert a thumbscrew
into the tab on the panel and insert it in the box and tighten. See Figure 2–

8.

Figure 2–8 Installing the Upper Panel

2-12 DS20E Reference Guide

PK3203

Place the right side dress panel on the right side of the unit and engage the

6.
tabs in the slots. Push the panel toward the front of the unit. Insert one
M3x6mm screw in the hole on the rear of the panel and tighten. See
Figure 2–9.

Figure 2–9 Installing the Side Dress Panel

PK3204

Installing the Pedestal System 2-13

Install the side access cover by inserting the cover tabs (4 top, 4 bottom) into

7.
the slots in the chassis. Slide the cover forward and secure it with the
captive screw

➊. See Figure 2–10.

Figure 2–10 Installing the Side Access Cover

1

PK3205

2-14 DS20E Reference Guide

Hold the door so that the hinge is to the right as you face the front of the

8.
unit. Rotate the door until it is at a 90-degree angle with the right edge of
the unit. Insert the door hinge pins into the mating holes recessed on the
right edge of the unit and push down slightly. Close the door.

Figure 2–11 Installing the Door

PK3211

Installing the Pedestal System 2-15

Installing the Rackmount System

This chapter provides installation procedures for setting up your rack­mountable server. The following topics are covered:

• Rackmount documentation

• Power requirements

• Shipment box

• Marking the installation area

• Rack accessories

• Preparing the system chassis

Chapter 3

• Preparing the rack

• Installing the system chassis

• Installing the interlock system

• Installing the cable management arm

• Dressing the cables

• Attaching the front bezel

WARNING: The system is very heavy. Do not attempt to lift it
manually. Use a material lift or other mechanical device. At
least two people are required to perform the installation.

Installing the Rackmount System 3-1

3.1 Rackmount Documentation

The DS20E system can be installed into either the H9A10 or H9A15
M-Series cabinet. In addition to reading this chapter, consult the
M-series documentation listed below, if needed. Use the DS20E
installation template for marking the installation area.

Rackmount Installation Template EK-DS20E-TP (included in 3X-

BA56R-RC/RD/RA)

H9A10 M-Series Cabinet Interconnect B-IC-H9A10-5-DBM

H9A10 M-Series Cabinet Configurations B-IB-H9A10-5-DBM

H9A10 M-Series Illustrated Parts
Breakdown

H9A15 M-Series Interconnect B-IC-H9A15-3-DBM

H9A15 M-Series Configurations B-IB-H9A15-3-DBM

H9A15 M-Series Illustrated Parts
Breakdown

EK-H9A10-IP

EK-H9A15-IP

3-2 DS20E Reference Guide

3.2 Power Requirements

Figure 3–1 shows maximum current ratings for a fully loaded system
(without monitor or terminal). It also shows where to plug in the AC
power connector. Power supply ratings and power cord requirements
are given in Chapter 9.

Figure 3–1 Power Requirements and Connections

100-120VAC 7.5A 50/60 Hz

220-240VAC 3.8A 50/60 HZ

CAT0012A

Installing the Rackmount System 3-3

3.3 Shipment Box

The system is shipped in a single box. Mounting hardware and

instructions for unpacking are in the accessories tray ➊.

Figure 3–2 Rackmount System Shipment Box

1

3-4 DS20E Reference Guide

CAT0011a

3.4 Marking the Installation Area

The installation of the rackmount system requires 8.75 inches (5U) of
vertical height in the rack. Use the rackmount template to mark the
installation area.

Figure 3–3 Rackmount Installation Area

0.500 inch

0.625 inch

0.625 inch

0.500 inch

1 U
(1.75 inches)

1. Mark the midpoint hole on the vertical rail as shown in Figure 3–3. The

midpoint hole must be selected so that the holes immediately above and
immediately below are equidistant (.625 inches).

Mark the corresponding hole on the other three rails.

2.

PK1221

Installing the Rackmount System 3-5

3.5 Rack Accessories

The mounting hardware is shown in Figure 3–4 and identified in
Table 3–1.

Figure 3–4 Mounting Hardware

6

2

6 1

7

2

8

2

6

1

6

9

1

3

4

6

5

6

9

8

3

3

4

7

5

1

2

PK0967

3-6 DS20E Reference Guide

Table 3–1 Mounting Hardware Description

Reference
Number Mounting Hardware

➊
➋
➌
➍

Vertical nut bar

10-32 x .375-inch hex head screw

Bracket slide, right

Chassis slide

➎ Nut plate, horizontal, slide
➏ M4 x 10 mm, Bossard screw
➐ Bracket slide, left
➑
➒
➀
➁
➂
➃
⑤

Bar nut

M3 x 6 mm flat head screw

Mounting rail, EIA (bars)

Front bezel

Actuator bracket, interlock

M5 x 8mm pan head, square cone washer

Nut keps, M4

⑥ 10-32 x .5-inch hex head screw

M3 x 10 mm flat head screw (shown in Figure 3–12)

Screw Size Torque Value

M3 7.6 in-lbs

M4 17 in-lbs

M5 20 in-lbs

10-32 21 in-lbs

Installing the Rackmount System 3-7

3.6 Preparing the System Chassis

To prepare the system for installation, attach the mounting brackets to
the chassis and attach the slide brackets to the slides.

Figure 3–5 Attaching Mounting Brackets to Chassis

1

3

4

2

3

CAT0152

CAUTION: The slides are lightly greased. Handle them carefully to avoid

soiling your clothing.

3-8 DS20E Reference Guide

Attach the front mounting brackets ➍ along each edge, using three M3 x 6

1.
flat head Phillips screws per bracket. Tighten to 7.6 in-lbs.

2.

Pull the narrow segment of the slide ➊ out and detach it completely by

pressing the green release button

3.

Attach the narrow segment of the slide ➌ to the system with five M4 x 10

➋and continuing to pull.

Bossard screws.

Repeat the procedure for the other slide.

4.

Installing the Rackmount System 3-9

Figure 3–6 Attaching Slide Brackets to Slides

6

4

5

3

4

7

3

1

2

1

2

CAT0160A

3-10 DS20E Reference Guide

The sliding segment of the slide has an access hole
three mounting holes in the stationary segment. You use two of the mounting
holes.

Front

Insert a cap screw through the access hole ➊ and the first (forward-most)

1.
mounting hole

Fasten with one two-hole nut bar ➍ and tighten.

Align the access hole with the third mounting hole ➎ in the slide.

2.

3.

Insert a cap screw through the access hole and the third hole ➎ in the slide

and through the slot ➏ in the slide bracket. Fasten through the nut bar and

tighten.

Back

4.

Insert a screw through the two holes ➐ in the stationary segment of the

slide and through a slot in the slide bracket. Attach to a two-hole nut

➍.

bar

➋ in the slide and through the hole ➌ in the slide bracket.

➊ that provides access to

Repeat the entire procedure for the other slide.

Installing the Rackmount System 3-11

3.7 Preparing the Rack

Prepare the rack by attaching the slide brackets to the rack rails. Then
stabilize the rack.

Figure 3–7 Attaching Slide Brackets to Rack Rails

Back

1

3

1

2

2

6

Front

5

4

4

2

CAT0161B

3-12 DS20E Reference Guide

Front

Starting at the top marked hole put two hex screws ➊ through the rack rail

1.
and the slide bracket

Fit the posts of a 2-post nut bar ➍ into the holes in the cabinet rail and slide

2.

bracket ➋ and fasten with nuts ➎.

3. Repeat the procedure for the other rail.

Back

4.

Starting at the top marked hole put two hex screws ➊ through the rack tail

and the slide bracket

5.

Fit the posts of a 2-post nut bar ➍ into the holes in the cabinet rail and slide

bracket ➋ and fasten with nuts ➎.

Repeat the procedure for the other rail.

6.

➋. Fasten with a 2-hole nut bar ➌.

➋. Fasten with a 2-hole nut bar ➏.

Installing the Rackmount System 3-13

Figure 3–8 Stabilizing the Rack

PK0213

3-14 DS20E Reference Guide

The system is intended for installation in one of the following racks, which are
equipped with a stabilizer bar:

• H9A10 M-Series Medium Rack

• H9A15 M-Series Tall Rack

Pull out the stabilizer bar and extend the leveler foot to the floor before
installing the system.

If you are using a rack other than those listed above, install rack stabilizing feet
or provide other means to stabilize the rack before installing the system.

Installing the Rackmount System 3-15

3.8 Installing the System Chassis

WARNING: The system is very heavy. Do not attempt to lift it
manually. Use a material lift or other mechanical device.

Before installing the system, make sure that all other hardware
in the rack is pushed in and attached.

Figure 3–9 Installing the System into an M-Series Rack

3-16 DS20E Reference Guide

CAT0153

Extend the fixed portion of the chassis slide until you hear a click. Ensure

1.
that the inner ball bearing slide on the chassis slide is pulled to the front of
the rail.

Align the narrow segment of the slides attached to the system with the

2.
slides attached to the rack, and slide the system onto the rail.

Depress the green release button on each side and slide the system

3.
completely into the rack.

Install U-nuts at locations marked for two shipping screws.

4.

Install two 10-32 x .500-inch hex head shipping screws ➊ and tighten.

5.

Figure 3–10 Installing Shipping Screws

1

1

CAT0157B

Installing the Rackmount System 3-17

3.9 Installing the Interlock System

The M-series racks have an interlock system that ensures stability by
allowing only one system at a time to be pulled out of the rack. The
stabilizer bracket and actuator latch only work in a rack equipped with
the interlock system.

Figure 3–11 Installing the Interlock System

6 4

6 2

6 5

6 7

6 6

6 3

6 1

PK0965

WARNING: If you are installing a rack that does not have the
interlock system, you must ensure rack stability by installing
rack stabilizing feet or by some other means.

3-18 DS20E Reference Guide

At the back of the rack, release the vertical bar ➊ of the interlock system.

1.

2.

Insert the stabilizer bracket ➋ and the actuator latch ➌ into the vertical

bar so that the actuator latch is below the stabilizer bracket.

Reinstall the vertical bar.

3.

Secure the stabilizer bracket to the two remaining marked holes on the

4.
right rack rail with two 10-32 x .500-inch hex screws
u-nuts.

Install the trip mechanism ➎ onto the chassis using two M5 x 8 mm screws

5.

➍. Tighten into the

➏.

Vertically position the actuator latch ➌ such that the trip mechanism ➎ on

6.
the system aligns with the actuator latch.

7.

Rotate the actuator latch to orient it like the other actuator latches on the

vertical bar.

Tighten the Allen screws ➐ on the actuator latch.

8.

Installing the Rackmount System 3-19

3.10 Installing the Cable Management Arm

Attach the cable management arm to the rear rails of the rack. Be sure
that you have attached all cables to the rear of the unit before
installing the cable management arm.

Figure 3–12 Installing the Cable Management Arm

6 1

6 2

3-20 DS20E Reference Guide

6 3

PK0966

Clip U-nuts ➊ over the holes in the vertical rail corresponding to the holes

1.
in the cable management bracket.

Attach the cable management bracket to the rack with two 10-32 x .5-inch

2.
screws

Attach the cable management bracket to the chassis with two M3 x 10 mm

3.
screws

➋.

➌.

Installing the Rackmount System 3-21

3.11 Dressing the Cables

Dress the cables through the cable clamps on the cable retractor
assembly at the rear of the system.

Figure 3–13 Dressing the Cables

3-22 DS20E Reference Guide

PK1223

Dress the cables through the cable clamps or tie wrap them to the cable

1.
retractor assembly.

Attach all cables to the member of the cable management arm that is

2.
attached to the system.

CAUTION: Failure to attach the cables to the attached member of the

management arm may cause cables to become disconnected.

Installing the Rackmount System 3-23

3.12 Attaching the Front Bezel

To complete the installation, align the front bezel with the front of the
system and snap it into place.

Figure 3–14 Attaching the Front Bezel

3-24 DS20E Reference Guide

CAT0157

Chapter 4

Booting and Installing

an Operating System

This chapter gives instructions for booting the Tru64 UNIX, OpenVMS, and
Linux operating systems and for starting an operating system installation. It

also describes how to switch from one operating system to another. Refer to
your operating system documentation for complete instructions on booting or
starting an installation.

The following topics are included:

• Setting boot options

• Booting Tru64 UNIX

• Starting a Tru64 UNIX installation

• Booting Linux

• Booting OpenVMS

• Starting an OpenVMS installation

NOTE: Your system may have been delivered to you with factory-installed

software (FIS); that is, with a version of the operating system already
installed. If so, refer to the FIS documentation included with your
system to boot your operating system for the first time. Linux-ready
systems do not come with factory-installed software.

Booting and Installing an Operating System 4-1

4.1 Setting Boot Options

v

X

from a RIS server.

You can set a default boot device, boot flags, and network boot
protocols for Tru64 UNIX or OpenVMS using the SRM set command
with environment variables. Once these environment variables are set,
the boot command defaults to the stored values. You can override the
stored values for the current boot session by entering parameters on
the boot command line.

The SRM boot-related environment variables are listed below and described in
the following sections.

auto_action Determines the default action the system takes when the

system is power cycled, reset, or experiences a failure.

bootdef_dev

boot_file

boot_osflags

ei*0_inet_init or
ew*0_inet_init

ei*0_protocols or
ew*0_protocols

Device or device list from which booting is to be attempted
when no path is specified on the command line.

Specifies a default file name to be used for booting when
no file name is specified by the boot command.

Defines parameters (boot flags) used by the operating
system to determine some aspects of a system bootstrap.

Determines whether the interface’s internal Internet
database is initialized from nvram or from a network
server (through the bootp protocol). Set this environment

ariable if you are booting Tru64 UNI

Defines a default network boot protocol (bootp or mop).

4-2 DS20E Reference Guide

4.1.1 auto_action

The auto_action environment variable specifies the action the console
takes any time the system powers up, fails, or resets. The value of
auto_action takes effect only after you reset the system by pressing the
Reset button or by issuing the init command.

The default setting for auto_action is halt. With this setting, the system stops
in the SRM console after being initialized. To cause the operating system to
boot automatically after initialization, set the auto_action environment
variable to boot or restart.

• When auto_action is set to boot, the system boots from the default boot

device specified by the value of the bootdef_dev environment variable.

• When auto_action is set to restart, the system boots from whatever device

it booted from before the shutdown/reset or failure.

NOTE: After you set the auto_action environment variable, it is recommended

that you set the boot device and operating system flags as well, using
the set bootdef_dev and set boot_osflags commands.

The syntax is:

set auto_action value

The options for value are:

halt

The system remains in console mode after power-up or a system
crash.

boot The operating system boots automatically after the SRM init

command is issued or the Reset button is pressed.

restart

The operating system boots automatically after the SRM init
command is issued or the Reset button is pressed, and it also
reboots after an operating system crash.

Booting and Installing an Operating System 4-3

Examples

In the following example, the operator sets the auto_action environment
variable to restart. The device specified with the bootdef_dev environment
variable is dka0. When Tru64 UNIX is shut down and rebooted, the system will
reboot from dka0.

P00>>> show auto_action
auto_action halt
P00>>> set auto_action restart
P00>>> init
.
.
.
P00>>> show auto_action
auto_action restart
P00>>> show bootdef_dev
bootdef_dev dka0
P00>>> boot
...
[Log in to UNIX and shutdown/reboot]

#shutdown -r now
...
console will boot from dka0

In the following example, auto_action is set to restart, but Tru64 UNIX is
booted from a device other than the device set with bootdef_dev. When Tru64
UNIX is shut down and rebooted, the system reboots from the specified device.

P00>>> boot dka100
.
.
.
[Log in to UNIX and shutdown/reboot]
#shutdown -r now
...
console will boot from dka100

4-4 DS20E Reference Guide

4.1.2 bootdef_dev

The bootdef_dev environment variable specifies one or more devices
from which to boot the operating system. When more than one device is
specified, the system searches in the order listed and boots from the
first device with operating system software.

Enter the show bootdef_dev command to display the current default boot
device. Enter the show device command for a list of all devices in the system.

The syntax is:

set bootdef_dev boot_device

boot_device

The name of the device on which the system software has been
loaded. To specify more than one device, separate the names
with commas.

Example

In this example, two boot devices are specified. The system will try booting
from dkb0 and if unsuccessful, will boot from dka0.

P00>>> set bootdef_dev dkb0, dka0

NOTE: When you set the bootdef_dev environment variable, it is

recommended that you set the operating system boot parameters as well,
using the set boot_osflags command.

Booting and Installing an Operating System 4-5

4.1.3 boot_file

The boot_file environment variable specifies the default file name to be
used for booting when no file name is specified by the boot command.
The factory default value is null.

The syntax is:

set boot_file filename

Example

In this example, the system is set to boot from dka0.

P00>>> set boot_file dka0

4-6 DS20E Reference Guide

4.1.4 boot_osflags

The boot_osflags environment variable sets the default boot flags and,
for OpenVMS, a root number.

Boot flags contain information used by the operating system to determine some
aspects of a system bootstrap. Under normal circumstances, you can use the
default boot flag settings.

To change the boot flags for the current boot only, use the flags_value argument
with the boot command.

The syntax is:

set boot_osflags flags_value

The flags_value argument is specific to the operating system.

Tru64 UNIX Systems

Tru64 UNIX systems take a single ASCII character as the flags_value
argument.

Load operating system software from the specified boot device

a

(autoboot). Boot to multiuser mode.

Prompt for the name of a file to load and other options (boot

i

interactively). Boot to single-user mode.

Stop in single-user mode. Boots /vmunix to single-user mode and stops

s

at the # (root) prompt.

D Full dump; implies “s” as well. By default, if Tru64 UNIX crashes, it

completes a partial memory dump. Specifying “D” forces a full dump at
system crash.

Example

The following setting will autoboot Tru64 UNIX to multiuser mode when you
enter the boot command.

P00>>> set boot_osflags a

Booting and Installing an Operating System 4-7

Linux Systems

The flags_value argument for Linux is 0 (zero).

Flags_value Arguments for Red Hat Distribution

0 Halt. (Do not set init default to this value.)

1 Single-user mode.

2 Multiuser, without NFS (same as 3, if you do not have networking)

3 Full multiuser mode (Default)

4 Unused

5X11

6 Reboot. (Do not set init default to this value.)

Flags_value Arguments for SuSE Distribution

0 Halt. (Do not set init default to this value.)

S Single-user mode. (Default)

1 Multiuser without network

2 Multiuser with network

3 Multiuser with network and xdm

6 Reboot. (Do not set init default to this value.)

Single-user mode is typically used for troubleshooting. To make system changes
at this run level, you must have read/write privileges. The command to boot
Linux into single-user mode is similar to the following example, where “/” root is
in partition 2 of DKA0, and the kernel is in /boot/compaq.gz.

P00>>> boot –file 2/b oot/co mpaq.g z –flags “root=/ dev/sd a2 rw s”

Example

This following command sets the boot_osflags environment variable for Linux:

P00>>> set boot_osflags 0

4-8 DS20E Reference Guide

OpenVMS Systems

OpenVMS systems require an ordered pair as the flags_value argument:
root_number and boot_flags.

root_number Directory number of the system disk on which OpenVMS files

are located. For example:

root_number

Root Directory

0 (default) [SYS0.SYSEXE]

1 [SYS1.SYSEXE]

2 [SYS2.SYSEXE]

3 [SYS3.SYSEXE]

boot_flags

The hexadecimal value of the bit number or numbers set. To
specify multiple boot flags, add the flag values (logical OR).
For example, the flag value 10080 executes both the 80 and
10000 flag settings. See Table 4–1.

Table 4–1 OpenVMS Boot Flag Settings

Flags_Value Bit Number Meaning

1 0 Bootstrap conversationally (enables you to

modify SYSGEN parameters in SYSBOOT).

2 1 Map XDELTA to a running system.

4 2 Stop at initial system breakpoint.

8 3 Perform diagnostic bootstrap.

10 4 Stop at the bootstrap breakpoints.

20 5 Omit header from secondary bootstrap image.

80 7 Prompt for the name of the secondary bootstrap

100 8 Halt before secondary bootstrap.

10000 16 Display debug messages during booting.

20000 17 Display user messages during booting.

file.

Booting and Installing an Operating System 4-9

Examples

In the following OpenVMS example, root_number is set to 2 and boot_flags is set
to 1. With this setting, the system will boot from root directory SYS2.SYSEXE
to the SYSBOOT prompt when you enter the boot command.

P00>>> set boot_osflags 2,1

In the following OpenVMS example, root_number is set to 0 and boot_flags is set
to 80. With this setting, you are prompted for the name of the secondary
bootstrap file when you enter the boot command.

P00>>> set boot_osflags 0,80

4-10 DS20E Reference Guide

4.1.5 ei*0_inet_init or ew*0_inet_init

The ei*0_inet_init or ew*0_inet_init environment variable determines
whether the interface’s internal Internet database is initialized from
nvram or from a network server (through the bootp protocol). Legal
values are nvram and bootp. The default value is bootp. Set this
environment variable if you are booting Tru64 UNIX from a RIS server.

To list the network devices on your system, enter the show device command.
The Ethernet controllers start with the letters “ei” or “ew,” for example, ewa0.
The third letter is the adapter ID for the specific Ethernet controller. Replace
the asterisk (*) with the adapter ID letter when using this command.

The syntax is:

set ei*0_inet_init value or
set ew*0_inet_init value

The value is one of the following:

nvram

bootp

Initializes the internal Internet database from nvram.

Initializes the internal Internet database from a network server
through the bootp protocol.

Example

P00>>> set ewa0_inet_init bootp

Booting and Installing an Operating System 4-11

4.1.6 ei*0_protocols or ew*0_protocols

The ei*0_protocols or ew*0_protocols environment variable sets
network protocols for booting and other functions.

To list the network devices on your system, enter the show device command.
The Ethernet controllers start with the letters “ei” or “ew,” for example, ewa0.
The third letter is the adapter ID for the specific Ethernet controller. Replace
the asterisk (*) with the adapter ID letter when entering the command.

The syntax is:

set ei*0_protocols protocol_value or
set ew*0_protocols protocol_value

The options for protocol_value are:

mop (default)

Sets the network protocol to mop (Maintenance Operations
Protocol), the setting typically used with the OpenVMS
operating system.

bootp

Sets the network protocol to bootp, the setting typically used
with the Tru64 UNIX operating system.

bootp,mop

When both are listed, the system attempts to use the mop
protocol first, regardless of which is listed first. If not
successful, it then attempts the bootp protocol.

Example

P00>>>show device
dka0.0.0.7.1 DKA0 COMPAQ BD018122C9 B016

dka100.1.0.7.1 DKA100 RZ2CA-LA N1H0
dka200.2.0.7.1 DKA200 COMPAQ BD018122C9 B016
dka300.3.0.7.1 DKA300 COMPAQ BD00962373 BCJC
dka400.4.0.7.1 DKA400 COMPAQ BD01862376 BCJC
dqa0.0.0.105.0 DQA0 CD-224E 9.5B
dva0.0.0.0.0 DVA0
ewa0.0.0.9.0 EWA0 00-00-F8-1B-9C-47
P00>>> set ewa0_protocols bootp
P00>>> show ewa0_protocols
ewa0_protocols bootp

4-12 DS20E Reference Guide

4.2 Booting Tru64 UNIX

Tru64 UNIX can be booted from a CD-ROM on a local drive (a CD-ROM
drive connected to the system), from a local SCSI disk, or from a UNIX
RIS server. Example 4–1 shows a boot from a local SCSI disk drive.
The example is abbreviated. For complete instructions on booting
Tru64 UNIX, see the Tru64 UNIX Installation Guide.

Example 4–1 Booting Tru64 UNIX from a Local SCSI Disk

P00>>>boot
(boot dka0.0.0.7.1 -flags A)
block 0 of dka0.0.0.7.1 is a valid boot block
reading 13 blocks from dka0.0.0.7.1
bootstrap code read in
base = 200000, image_start = 0, image_bytes = 1a00
initializing HWRPB at 2000
initializing page table at 17f5c000
initializing machine state
setting affinity to the primary CPU
jumping to bootstrap code

UNIX boot - Sun May 14 05:34:40 EDT 2000
Loading vmunix ...

Loading at 0xfffffc0000230000
Sizes:

text = 5122496
data = 946208
bss = 1366480
Starting at 0xfffffc000057e370

Loading vmunix symbol table ... [1416456 bytes]
Alpha boot: available memory from 0x1138000 to 0x17f5a000
Digital UNIX V4.0G (Rev. 1530); Wed Jul 12 11:35:09 EDT 2000
physical memory = 384.00 megabytes.
available memory = 366.14 megabytes.
using 1464 buffers containing 11.43 megabytes of memory
Master cpu at slot 0.
Firmware revision: 5.5-9
PALcode: UNIX version 1.54-51
COMPAQ AlphaStation DS20E 666 MHz
.
.
.
Starting secondary cpu 1
Checking local filesystems
/sbin/ufs_fsck -p
/dev/rrz0a: 1412 files, 65349 used, 1512300 free (356 frags, 188993 blocks,

0.0)

/dev/rrz0g: File system unmounted cleanly - no fsck needed
Mounting / (root)
user_cfg_pt: reconfigured

Booting and Installing an Operating System 4-13

Mounting local filesystems
/dev/rz0a on / type ufs (rw)
/proc on /proc type procfs (rw)
/dev/rz0g on /usr type ufs (rw)
Jul 12 11:40:50 update: started
The system is coming up. Please wait...
Checking for crash dumps
Initializing paging space
Mounting Memory filesystems
Streams autopushes configured
Configuring network
hostname: mech2
Loading LMF licenses
System error logger started
Binary error logger started
Setting kernel timezone variable
ONC portmap service started
NFS IO service started
Mounting NFS filesystems
Preserving editor files
security configuration set to default (BASE).
Successful SIA initialization

Clearing temporary files
Unlocking ptys
SMTP Mail Service started.
Environmental Monitoring Subsystem Configured.
Using snmp service entry port 161.
Can’t get a local IP address.
Extensible SNMP master agent started
Base O/S sub-agent started
Server System sub-agent started
Server Management sub-agent started
Compaq Management sub-agent started
Insight Manager Agent started
Environmental Monitoring Daemon started.
Internet services provided.
Cron service started
SuperLAT. Copyright 1994 Meridian Technology Corp. All rights reserved.
LAT started.
Printer service started
The system is ready.

Digital UNIX Version V4.0 (mech2) console
login:

4-14 DS20E Reference Guide

Perform the following tasks to boot a Tru64 UNIX system:

Power up the system. The system stops at the SRM console prompt,

1.
P00>>>.

Set boot environment variables, if desired. See Section 4.1.

2.

Install the boot medium. For a network boot, see Section 4.2.1.

3.

4.

Enter the show device command to determine the unit number of the drive

for your device.

Enter the boot command and command-line parameters (if you have not set

5.
the associated environment variables). In Example 4–1, boot flags have
already been set.

Booting and Installing an Operating System 4-15

4.2.1 Booting Tru64 UNIX over the Network

To boot your Tru64 UNIX system over the network, make sure the
system is registered on a Remote Installation Services (RIS) server.
See the Tru64 UNIX document entitled Sharing Software on a Local
Area Network for registration information.

Example 4–2 RIS Boot

P00>>> show device ➊

dka0.0.0.7.1 DKA0 COMPAQ BD018122C9 B016
dka200.2.0.7.1 DKA200 COMPAQ BD018122C9 B016
dqa0.0.0.105.0 DQA0 CD-224E 9.5B
dva0.0.0.0.0 DVA0
ewa0.0.0.9.0 EWA0 00-00-F8-1B-9C-47
pka0.7.0.7.1 PKA0 SCSI Bus ID 7
pkb0.7.0.6.0 PKB0 SCSI Bus ID 7
pkc0.7.0.106.0 PKC0 SCSI Bus ID 7
P00>>>

P00>>> set ewa0_protocols bootp

P00>>> set ewa0_inet_init bootp ➌
P00>>> boot ewa0 Da ➍

➋

.
.
.

4-16 DS20E Reference Guide

Systems running Tru64 UNIX support network adapters, designated ew*0 or
ei*0. The asterisk stands for the adapter ID (a, b, c, and so on).

1. Power up the system. The system stops at the SRM console prompt,

P00>>>.

2. Set boot environment variables, if desired. See Section 4.1.

3. Enter the show device command ➊ to determine the unit number of the

drive for your device.

4. Enter the following commands. Example 4–2 assumes you are booting from

ewa0. If you are booting from another drive, enter that device name
instead.

P00>>> set ewa0_protocols bootp
P00>>> set ewa0_inet_init bootp

The first command
the Ethernet controller. The second command
database to initialize from the network server through the bootp protocol.

5. Enter the boot command ➍ and command-line parameters (if you have not

set the associated environment variables). In Example 4–2 the boot
command sets the system to boot automatically from ewa0 and specifies a
full memory dump (Da) in case of a system shutdown.

For complete instructions on booting Tru64 UNIX over the network, see the
Tru64 UNIX Installation Guide.

➋ enables the bootp network protocol for booting over

➌ sets the internal Internet

Booting and Installing an Operating System 4-17

4.3 Starting a Tru64 UNIX Installation

Tru64 UNIX is installed from the CD-ROM drive connected to the
system. The display that you see after you boot the CD depends on
whether your system console is a VGA monitor or a serial terminal.

Example 4–3 Text-Based Installation Display

P00>>> b dqa0
(boot dqa0.0.0.15.0 -flags a
block 0 of dqa0.0.0.15.0 is a valid boot block
reading 16 blocks from dqa0.0.0.15.0
bootstrap code read in
base = 200000, image_start = 0, image_bytes = 2000
initializing HWRPB at 2000
initializing page table at 1fff0000
initializing machine state
setting affinity to the primary CPU
jumping to bootstrap code

Tru64 UNIX boot - Thu Dec 16 15:03:19 EST 1999
Loading vmunix ...

.
.

Initializing system for Tru64 UNIX installation. Please
wait...

*** Performing CDROM Installation
Loading installation process and scanning system hardware.

Welcome to the UNIX Installation Procedure
This procedure installs UNIX onto your system. You will be

asked a series of system configuration questions. Until you
answer all questions, your system is not changed in any way.

During the question and answer session, you can go back to any
previous question and change your answer by entering: history
You can get more information about a question by entering:
help

4-18 DS20E Reference Guide

There are two types of installations:
o The Default Installation installs a mandatory set of

software subsets on a predetermined file system layout.
o The Custom Installation installs a mandatory set of

software subsets plus optional software subsets that you
select. You can customize the file system layout.

The UNIX Shell option puts your system in single-user mode
with superuser privileges. This option is provided for
experienced UNIX system administrators who want to perform
file system or disk maintenance tasks before the installation.

The Installation Guide contains more information about
installing UNIX.

1) Default Installation

2) Custom Installation

3) UNIX Shell

Enter your choice:

Boot the operating system from the CD-ROM drive connected to the system.

1.

2.

Follow the Tru64 UNIX installation procedure that is displayed after the

installation process is loaded.

• If your system console is a VGA monitor, the X Server is started and an

Installation Setup window is displayed. Click on the fields in the
Installation Setup window to enter your responses to the installation
procedure.

• If your system console is a serial terminal, a text-based installation

procedure is displayed, as shown in Example 4–3. Enter the choices
appropriate for your system.

See the Tru64 UNIX Installation Guide for complete installation instructions.

Booting and Installing an Operating System 4-19

4.4 Booting Linux

Obtain the Linux installation document and install Linux on the
system. Then verify the firmware version, boot device, and boot
parameters, and issue the boot command.

The procedure for installing Linux on an Alpha system is described in the Alpha
Linux installation document for your Linux distribution. The installation

document can be downloaded from the following Web site:

http://www.compaq.com/alphaserver/linux

You need V5.6-3 or higher of the SRM console to install Linux. If you have a
lower version of the firmware, you will need to upgrade. For instructions and
the latest firmware images, see the following URL.

http://ftp.digital.com/pub/DEC/Alpha/firmware/

Linux Boot Procedure

Power up the system to the SRM console and enter the show version

1.
command to verify the firmware version.

P00>> show version
version V5.6-3 Nov 30 1999 08:36:11
P00>>

2. Enter the show device command to determine the unit number of the drive

for your boot device, in this case dka0.0.0.17.0.

P00>>>sh dev
dka0.0.0.17.0 DKA0 COMPAQ BD018122C9 B016
dka200.2.0.7.1 DKA200 COMPAQ BD018122C9 B016
dqa0.0.0.105.0 DQA0 CD-224E 9.5B
dva0.0.0.0.0 DVA0
ewa0.0.0.9.0 EWA0 00-00-F8-1B-9C-47
pka0.7.0.7.1 PKA0 SCSI Bus ID 7
pkb0.7.0.6.0 PKB0 SCSI Bus ID 7
pkc0.7.0.106.0 PKC0 SCSI Bus ID 7
P00>>>

4-20 DS20E Reference Guide

After installing Linux, set boot environment variables to configure boot

3.
parameters for Red Hat 6.2, SuSE 6.4, or TurboLinux 6.0. This example
shows settings for booting from the system hard drive (DKA0).

P00>>>set bootdef_dev dka0
P00>>>set boot_file
P00>>>set boot_osflags 0
P00>>>show boot*
boot_dev dka0.0.0.17.0
boot_file
boot_osflags 0
boot_reset OFF
bootdef_dev
booted_dev
booted_file
booted_osflags

4. From SRM enter the boot command. The following example shows

abbreviated boot output.

Example 4–4 Linux Boot Output

P00>>>boot
(boot dka0.0.0.17.0 -flags 0)
block 0 of dka0.0.0.17.0 is a valid boot block
reading 152 blocks from dka0.0.0.17.0
bootstrap code read in
base = 200000, image_start = 0, image_bytes = 13000
initializing HWRPB at 2000
initializing page table at 3ff46000
initializing machine state
setting affinity to the primary CPU
jumping to bootstrap code
aboot: Linux/Alpha SRM bootloader version 0.5
aboot: switching to OSF/1 PALcode version 1.72
aboot: valid disklabel found: 2 partitions.
aboot: booted_dev=‘scsi 0 17 0 0 0 0 0’, guessing boot_device=‘sda2’
aboot: loading compressed boot/vmlinux.gz...
aboot: ok, now starting the kernel...

Linux version 2.2.14 (jestabro@linux04) (gcc version egcs-2.91.66
19990314/Linux (egcs-1.1.2 release)) #1 SMP Wed Jan 26 15:55:11 EST 2000
Jul 24 13:03:21 emperor kernel: Booting GENERIC on Tsunami variation
Catamaran using machine vector DP264 from SRM
Command line: root=/dev/sda2 bootdevice=sda2 bootfile=boot/vmlinux.gz
SMP: 2 CPUs probed -- cpu_present_mask = 3
Console: colour VGA+ 80x25
Calibrating delay loop... 996.15 BogoMIPS
Memory: 2070232k available
Dentry hash table entries: 262144 (order 9, 4096k)
Buffer cache hash table entries: 524288 (order 9, 4096k)
Page cache hash table entries: 262144 (order 8, 2048k)
VFS: Diskquotas version dquot_6.4.0 initialized
POSIX conformance testing by UNIFIX

Booting and Installing an Operating System 4-21

SMP starting up secondaries.
atd startup succeeded
recv_secondary_console_msg: on 0 message is ’P01>>>START P01>>>’
Calibrating delay loop... 991.95 BogoMIPS
Total of 2 processors activated (1988.10 BogoMIPS).
Alpha PCI BIOS32 revision 0.04
Probing PCI hardware
SMC37c669 Super I/O Controller found @ 0x3f0
Linux NET4.0 for Linux 2.2
Based upon Swansea University Computer Society NET3.039
Unix domain sockets 1.0 for Linux NET4.0.
Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
Hash tables configured (ehash 524288 bhash 65536)
Starting kswapd v 1.5
parport0: PC-style at 0x3bc [SPP]
Detected PS/2 Mouse Port.
Serial driver version 4.27 with no serial options enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
ttyS01 at 0x02f8 (irq = 3) is a 16550A
256 Unix98 ptys configured
using parport0 (polling).
RAM disk driver initialized: 16 RAM disks of 4096K size
registered device at major 7
buffer.c:43 spinlock stuck in kflushd at fffffc00003512a4(1) owner swapper at
fffffc00003102dc(0) init/main.c:43
CD-224E, ATAPI CDROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
io_request_lock is fffffc00005d9950
buffer.c:43 spinlock grabbed in kflushd at fffffc00003512a4(1) 2564 ticks
hda: ATAPI 24X CD-ROM drive, 512kB Cache
Uniform CDROM driver Revision: 2.56
Floppy drive(s): fd0 is 2.88M
FDC 0 is a post-1991 82077

Floppy drive(s): fd0 is 2.88M
DAC960: ***** DAC960 RAID Driver Version 2.2.5 of 23 January 2000 *****
DAC960: Copyright 1998-2000 by Leonard N. Zubkoff <[e-mail]>
DAC960#0: Configuring Mylex DAC960PRL PCI RAID Controller
DAC960#0: Firmware Version: 4.07-0-29, Channels: 1, Memory Size: 4MB
DAC960#0: PCI Bus: 0, Device: 15, Function: 1, I/O Address: Unassigned
DAC960#0: PCI Address: 0xA800000 mapped at 0xA800000, IRQ Channel: 39
DAC960#0: Controller Queue Depth: 124, Maximum Blocks per Command: 128
DAC960#0: Driver Queue Depth: 123, Maximum Scatter/Gather Segments: 33
DAC960#0: Stripe Size: 64KB, Segment Size: 8KB, BIOS Geometry: 128/32
DAC960#0: Physical Devices:
DAC960#0: 0:0 Vendor: DEC Model: RZ1DF-CB (C) DEC Revision: 0372
DAC960#0: Serial Number: 680101914A
DAC960#0: Disk Status: Online, 17772544 blocks
DAC960#0: 0:1 Vendor: SEAGATE Model: ST34501W Revision: 7B00
DAC960#0: Serial Number: LG517138
DAC960#0: Disk Status: Online, 8386560 blocks
DAC960#0: 0:2 Vendor: SEAGATE Model: ST34501W Revision: 7B00
DAC960#0: Serial Number: LG235961
DAC960#0: Disk Status: Online, 8386560 blocks
DAC960#0: Logical Drives:
DAC960#0: /dev/rd/c0d0: RAID-5, Online, 16773120 blocks, Write Thru
qlogicisp : new isp1020 revision ID (5)
scsi0 : QLogic ISP1020 SCSI on PCI bus 00 device 88 irq 47 I/O base 0xb800

4-22 DS20E Reference Guide