HP Model 744, Model 748, A4268A Installation And Service Manual

Model A4268A FWD SCSI Adapter

Installation and Service Guide

Embedded

Systems Operation

Part No. A4268–90601

Edition E1097

 Hewlett–Packard Co. 1995, 1997

First Printing: April 1995
Last Printing: October 1997

UNIX

is a registered trademark in the United States and other countries, licensed exclusively

X/Open Company Limited.

NOTICE

The information contained in this document is subject to change without notice.

HEWLETT–PACKARD MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS
MATERIAL INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Hewlett–Packard shall

be liable

not

for errors contained herein or for incidental or consequential damages in connection with

the furnishing, performance or use of this material.

through

Hewlett–Packard

assumes no responsibility for the use or reliability of its software on equipment that is

not furnished by Hewlett–Packard.

This

document contains proprietary information which is protected by copyright. All rights reserved.

No

part of

this document may be photocopied, reproduced or translated to another language without the

prior written consent of Hewlett–Packard Company.

RESTRICTED RIGHTS LEGEND. Use, duplication, or disclosure by government is subject to
restrictions

as set forth in subdivision (c) (1) (ii) of the Rights in T

echnical Data and Computer Software

Clause at DFARS 252.227.7013. Hewlett–Packard Co., 3000 Hanover St., Palo Alto, CA 94304

10 9 8 7 6 5 4 3 2 1

Contents

Preface

Chapter 1 Preparing for the Installation

Product Description 1–2.

Features 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Physical and Environmental Specifications 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Check That You Have the Necessary Equipment 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System Prerequisites 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hardware Prerequisites 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Firmware Prerequisites 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Software Prerequisites 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Record Adapter Information 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Check the Switch Settings 1–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 2 Installing the FWD SCSI Adapter

Remove SBC from the Card Cage. 2–2.

Remove blank plate from front panel. 2–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

For Model 743 only, install new Boot ROM if required. 2–5.

Install FWD SCSI Adapter card. 2–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replace the SBC in the Card Cage. 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connect the disk drives. 2–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Verify the operation of the FWD SCSI adapter. 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . .

iii

Contents

Chapter 3 Troubleshooting

Diagnostic Information 3–2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Term Power LED 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Off–Line Diagnostics 3–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

MAPPER 3–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

IOTEST 3–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Field Replaceable Units

Removing and Replacing the Term Power Fuse 3–4. . . . . . . . . . . . . . . . . . . . . . . . . . .

3–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

iv

Preface

This guide describes how to install and configure the Fast–Wide–Differential (FWD)
SCSI adapter on your Model 743 or 744 Single Board Computer or Model 748 Industrial
System.

We’ve organized this guide as follows:

Chapter 1 This chapter describes how to prepare your computer for the installation.

Chapter 2 This chapter describes the step–by–step procedure for installing the FWD

Chapter 3 This chapter tells you what to do if you experience problems after

Audience

This guide is intended for use by anyone familiar with the Model 743 or 744 Single
Board Computer or Model 748 Industrial System who wants to install a FWD SCSI
adapter.

It lists the contents of the kit, and system prerequisites.

SCSI adapter.

installing the new adapter.

v

Preface

Installation Notice

Products designated in the applicable Hewlett–Packard price list as customer installable
can be installed by computer–knowledgeable customers who carefully read and follow
the instructions provided. Customers who elect to have the product installed by our field
personnel are charged the applicable field installation charge, as covered under the
standard terms and conditions. For more information, please contact your local sales
representative.

Related Manuals

For more information, refer to the following documents:

• Model 744 Owner’s Guide (A4511–90602)

• Model 743 Owner’

s Guide

(A2636–90606)

• Model 748 Owner’s Guide (A4511–90604)

• HP–RT Operating System 3.01 Release Notes (B5487–90013)

• HP–RT System Administration T

asks

(B5487–90002)

vi

Revision History

The revision history for each edition of the manual is listed below:

Edition Revision History
E0495 First edition.
E1097 Second edition, revised to include information relating to the

Preface

Model 744.

vii

Preface

Problems, Questions, and Suggestions

If

you have any questions or problems with our hardware, software, or documentation, please

contact your designated service representative.

viii

Documentation Conventions

Unless otherwise noted in the text, this guide uses the following symbolic conventions:

literal values Bold words or characters in formats and command descriptions

represent commands that you must use literally. Pathnames are
also in bold.

user–supplied Italic words or characters in formats and command descriptions
values represent values that you must supply. Italics are also used in

text for emphasis.

screen display Information that the system displays appears in this typeface.

Preface

Enter

A rectangle with rounded corners and a key label denotes a key on
your keyboard. (In this manual we refer to the Enter key. On your
keyboard the key may be labeled either Enter or Return.)

This symbol indicates the end of a chapter or part of this guide.

ix

Preface

x

Chapter 1

Preparing for the Installation

This chapter describes how to prepare your system for a FWD SCSI adapter installation.
Before installing your new adapter, you need to complete the following tasks:

• Check that you have the necessary equipment.

• Make sure that your system meets the prerequisites.

• Record adapter information.

•

Check switch settings.

1–1

Preparing for the Installation

Product Description

The followings describes the features, physical and environmental specifications and
parts included with the installation kit.

Features

The HP A4268A FWD SCSI Adapter complies with ANSI X3T9.2 SCSI specifications
and has the following features:

• NCR 53C720 SCSI I/O processor chip.

• Differential control and data lines.

• Internal

removable

terminators allowing for installation anywhere on the SCSI bus.

• 4 position DIP switch to set SCSI ID for the adapter.

Physical and Environmental Specifications

The HP A4268A FWD SCSI Adapter’s physical and environmental specifications are:

• Temperature

– Operating: 0 to 55 degrees C (ramp rate 10 degrees C).

– Storage: – 40 to 70 degrees C.

• Humidity: 95% relative humidity at 40 degrees C.

• Mechanical shock: compliant with IEC 654-3 and IEC-68-2 methods.

• Mechanical vibration: compliant with IEC 654-3 Class VH3 levels or better.

1–2

1. Check That You Have the Necessary Equipment

Verify that you have kit A4268A FWD SCSI adapter). Ensure that the kit contains the
following parts.

• HP A4268A FWD SCSI adapter card

• Screws (2)

• Boot ROM, upgrade (for use with Model 743 only)

• IC removal tool (for use with Model 743 only)

•

Disposable anti–static wrist strap

Verify that you have the following tools to perform the installation:

• Small flat blade screwdriver

Preparing for the Installation

• #1 Pozidriv screwdriver

1–3

Preparing for the Installation

2. System Prerequisites

Your system must meet some hardware and software prerequisites to support the FWD
SCSI adapter. These prerequisites are described in the following sections.

Hardware Prerequisites

The required hardware is as follows:

• GSC Expansion Adapter (A4262A or A4219A) or HCRX/VME Graphics Board

(A4315A or A4316A)

• A minimum of 32-MB RAM if running HP-UX version 10.20, or

a minimum of 16-MB RAM if running HP-UX version 9.x, or
a minimum of 24–MB RAM if running HP–RT

Firmware Prerequisites

The required firmware is as follows:

• A

Model 743 Single Board Computer (SBC) may require a firmware upgrade if the
Boot ROM included in this kit is a later version than the one in use on your SBC.
To determine if the Boot ROM of your SBC needs to be replaced, you need to
determine
Console Handler (BCH)
you
label.
number
one included in this kit. If the revision number on the Boot ROM installed on the
Model
the Boot ROM on the Model 743.

the revision number

can examine the label on

If the revision number on the Boot ROM installed on the Model 743 is a lower

than the one included in this kit, you

743

is equal to or greater than the one included in this kit,

, which can be done in one of two ways: use the Boot

interface

as described in the

the Boot ROM – a revision number is printed on the

should replace the Boot ROM with the

Model 743 Owner’s Guide

DO NOT

, or

replace

1–4

• A Model 744 Single Board Computer does not require a firmware upgrade

Software Prerequisites

The required software is as follows:

• For Model 743 SBC with HP-UX, software release 9.05 or later version.

• For Model 744 SBC with HP-UX, software release 10.20 or later version.

To identify which revision of HP-UX your workstation is running, enter
the following command:

Preparing for the Installation

uname –r Enter

A line similar to the following is displayed:

A.09.05

If

a number less than 09.05 is displayed it means that you need to update

your software before installing your HCRX/VME graphics upgrade.

• For

Contact your designated service representative for information on receiving an upgrade to
the correct version of the operating system.

Model 743 and 744 SBCs with HP-RT, the operating system software revision

of

the host system must be HP-UX

have

at least HP-RT 3.01. For more information, refer to the

Notes.

3. Record Adapter Information

Record the serial number of the adapter for future reference. If your adapter needs
service in the future, the serial number will be needed by HP service personnel. This
information is provided on the bar code sticker affixed to the adapter. See the following
example.



401105H009

10.10 or later

, and the HP-R

T tar

get system must

HP–RT 3.01 Release

1–5

Preparing for the Installation

4. Check the Switch Settings

Ensure the SCSI address switches are set to SCSI address 7 unless your storage
subsystem allows multiple controllers (refer to your storage subsystem documentation).
The SCSI adapter address switches are shown set to SCSI address 7 in Figure 1–1.

SCSI

Address Switches

1

2 3 4

1 2 3 4

1 2 3 4

1–6

7

Depressed
Side of Switch

6

5
4

3

Figure 1–1. The SCSI Adapter Addr

2
1

0

15
14

ess Switches

13

12

11

10

9

8

Chapter 2

Installing the FWD SCSI Adapter

This chapter describes how to install the FWD SCSI adapter. Before beginning the
hardware installation, you must complete the tasks in Chapter 1. The tasks for installing
the FWD SCSI adapter are as follows:

• Remove the single board computer (SBC).

• For a Model 743 SBC, install new Boot ROM, if required.

• Remove a blank cover.

• Install FWD SCSI card.

• Replace the single board computer.

• Connect the disk drive(s).

CAUTION: The FWD SCSI adapter is susceptible to electrostatic shock. When

handling your graphics option board, always wear the
static–grounding wrist strap that came in the kit. Always handle
printed circuit boards carefully.

2–1

Installing the FWD SCSI Adapter

1. Remove SBC from the Card Cage.

a.

Power down your card cage.

b. Disconnect the power cord(s) from the wall outlet and the card cage.

c. Power off any external peripherals attached to your computer, and unplug their

power cables from the wall outlet.

d. Attach the anti–static grounding wrist strap to your wrist and an exposed piece of

metal on your computer, as described on the wrist strap’s packaging.

2–2

Installing the FWD SCSI Adapter

e. Loosen the SBC’s two captive screws with a small flat blade screwdriver. Depending

on your configuration, you could have four captive screws – two on the SBC, and
two on the expansion slot. If you have these four captive screws, you will need to
remove all four. See Figure 2–1.

Captive Screws

Captive Screws

Figure 2–1. Removing the Single Boar

d Computer

f. Push the ejector handles to the outside of the board and remove the SBC from the

card cage, as shown in Figure 2–1.

2–3

Installing the FWD SCSI Adapter

2. Remove blank plate from front panel.

Remove the blank plate from the opening of the front panel expansion plate at the
site where you will install the FWD SCSI adapter. Save the screws for use later. See
Figure 2–2.

2–4

Figure 2–2. Removing a Blank Plate

Installing the FWD SCSI Adapter

3. For Model 743 only, install new Boot ROM if required.

If after reading the prerequisites for firmware in Chapter 1 you must replace the Boot
ROM, use the following procedure.

a. Remove the Boot ROM from its socket on the Model 743, at location U54, using the

IC removal tool as shown in Figure 2–3.

b. Align the new Boot ROM in its socket, at location U54, with the keyed corner

matching the sockets keyed corner. Carefully press the new Boot ROM into its
socket. See Figure 2–3.

U54

Keyed Corner

Figure 2–3. Removing and Replacing the Boot ROM

2–5

Installing the FWD SCSI Adapter

4. Install FWD SCSI Adapter card.

Align the connector on the FWD SCSI adapter with the cutout on the front extension

a.

plate. See Figure 2–4.

2–6

Figure 2–4. Installing the FWD SCSI Adapter

b. Align the connector on the bottom of the adapter with the connector on the GSC

expansion adapter

. See Figure 2–4.

c. Gently press down on the adapter until the connectors are fully seated.

d. Insert the the two screws provided in the kit through the top of the adapter into the

two standoffs on the GSC expansion adapter. See Figure 2–4.

Installing the FWD SCSI Adapter

e. Use a #1 Pozidriv screwdriver to tighten the two screws.

f. Install the two screws removed during Step 2 through the front panel extension plate

on either side of the SCSI connector to secure the connector plate. See Figure 2–4.

g. Use a #1 Pozidriv screwdriver to tighten the two screws.

2–7

Installing the FWD SCSI Adapter

5. Replace the SBC in the Card Cage.

a.

Replace the SBC in the VME card cage.

b. Push on the SBC’s ejector handles until it is fully seated in the card cage, as shown

in Figure 2–5.

2–8

Figure 2–5. Replacing the Single Boar

d Computer

c. Use a small flat blade screwdriver to tighten the two captive screws on the SBC and

the two captive screws on the expansion slot.

6. Connect the disk drives.

a.

Connect the FWD SCSI cable to the connector on the FWD SCSI adapter, as shown
in Figure 2–6. Be sure to firmly tighten the screws on the connector.

Installing the FWD SCSI Adapter

Figure 2–6. Connecting the SCSI Cable

b. Connect the other end of the FWD SCSI cable to the peripheral box.

c. Be sure to terminate the last device in the FWD SCSI bus, or use an external

terminator.

2–9

Installing the FWD SCSI Adapter

7. Verify the operation of the FWD SCSI adapter.

To verify that your system recognizes the FWD SCSI adapter, follow these steps:

a. Turn on and boot the system, and log in as root or superuser.

b. In a terminal window, enter the following command:

/etc/ioscan –C scsi

/usr/sbin/ioscan –C ext_bus

After a few moments the ioscan utility lists all of the bus interfaces it could find.
The list appears similar to the following:

For HP–UX 9.x:

Path Description Status

H/W
=============================

2.0.1 scsi ok(0x7071)

2.0.7 scsi ok(0x707c)

For HP–UX 10.x:

Path Class Description

H/W
====================================
8/8 ext_bus GSC add–on Fast/Wide SCSI Interface
8/12/0 ext_bus Built–in Parallel Interface
8/12/5 ext_bus Built–in SCSI

Enter (for HP–UX 9.x)

Enter (for HP–UX 10.x)

If ioscan does not find your FWD SCSI adapter, go to Chapter 3, “Troubleshooting”.

2–10

Chapter 3

Troubleshooting

This chapter describes how to solve installation problems with the following information:

• Diagnostic Information

•

Field Replaceable Units

3–1

Troubleshooting

Diagnostic Information

There are two diagnostic tools available to identify faulty adapters. They are

• TERM POWER LED

• Off–Line Diagnostics

Term Power LED

If the TERM POWER LED, located on the adapter bulkhead, is green, it indicates the
adapter is supplying termination power to the SCSI bus. During proper operation the
LED is on.

If the TERM POWER LED is off, this adapter is not supplying termination power to the
SCSI bus.
Possible faults include:

3–2

•

Blown fuse

• Faulty HP A4268A FWD SCSI Adapter

• Faulty SCSI device

• Faulty cable connection, (bent pins or improper seating of the cable connector)

Troubleshooting

Off–Line Diagnostics

The Off–Line Diagnostic Environment (ODE) is used to test to the I/O card level in the
computer system. IOTEST and MAPPER are modules of the ODE that check the
functionality of the I/O modules in the computer system. ODE is run from the Initial
System Loader (ISL) on the system console. Please refer to your system’s Owner’

s Guide

for for more information on running ISL.

MAPPER

ISL>ODE
ODE>mapper
MAPPER>run

The MAPPER utility provides the following hardware information

 Path #
 Type ID (Architecture Module)
 Hardware Version
 Hardware and Firmware Versions
 SCSI bus address of the host adapter
 Names and addresses of devices on the SCSI bus

MAPPER automatically resets the SCSI bus.

IOTEST

ISL>ODE
ODE>iotest
IOTEST>run

The IOTEST’s strategy is to systematically check the basic functionality of the I/O
modules
selftest,

in the system. This is

accomplished by either making a PDC_IODC call to invoke

or by running a test within the diagnostic. IOTEST doesn’t test the functionality

of devices.
IOTEST is currently divided into 23 sections. Each section performs basic tests on a

particular module.

the HP SCSI adapter

For

, Section 006 tests the basic functionality of the the interface chip

from the NCR controller chip to the HP (GSC+) backplane. First, there is a register test

3–3

Troubleshooting

which

writes and reads patterns to and from the interface chip registers. Then the interface
chip is tested by implemented DMA transactions. Last, error handling is tested by
invoking
selftest on the interface chip.

NOTICE: No on–line diagnostics are available for the HP A4268A Fast Wide

errors and checking the interface chip’s status. This section also runs the IODC

Differential SCSI adapter.

Field Replaceable Units

The following components are authorized for field replacement.

Description Part Number

Adapter board A4268–60003
125V, 2A, LF Fuse 2110–0517
Terminating Resistor Pack(3) 1810–1418

3–4

NOTICE: In the event of replacing a a Model 743 SBC that has the HP

A4268A Fast Wide Differential SCSI Adapter installed, you must
ensure the revision of the Boot ROM on the SBC is 304.2 (Rev. E)
or later. If you must replace the Boot ROM, this tool is required.

IC removal tool S2413–40001

Removing and Replacing the Term Power Fuse

To remove and replace the termpower fuse (F3) do the following:

Troubleshooting

1. Remove the SBC.

2. Remove the SCSI adapter board from the SBC.

3. Inspect and if necessary replace fuse F3 as shown in Figure 3–1. The fuse has
no polarity, so fuse can be oriented in either position in the socket.

Fuse F3

Contact Pins

125 V

2A
LF

Fuse Socket

Figure 3–1. Replacing Fuse F3

4. Replace the SCSI adapter.

5.

Replace the SBC.

If you verify that you correctly installed and configured your FWD SCSI adapter and you
still have a problem, contact your designated service representative.

3–5

Troubleshooting

3–6