HP A6829A User Manual

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HP A6829A PCI Dual Channel Ultra160

SCSI Host Bus Adapter

Service and User Guide

Edition 2

Manufacturing Part Number: A6829-96002

E0503

United States

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iii

About This Document

1. HP A6829A Adapter Overview

About the A6829A Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Supported HP-UX Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2. Installing the A6829A Adapter

Overview of Installation Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Performance Tuning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Preparing for Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Installing the A6829A Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Online Addition and Replacement—HP-UX 11i Only . . . . . . . . . . . . . . . . . . . . . . . . 16

Planning and Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Critical Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Adapter Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Connecting External SCSI Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Specifying SCSI Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

SCSI IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Setting SCSI IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Maximum Data Transfer Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Setting Maximum Data Transfer Rate for A6829A Host Bus Adapter Installed in

PA-RISC Based System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Setting Maximum Data Transfer Rate for A6829A Host Bus Adapter Installed in

Itanium‚-Based System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Auto Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Controlling Auto Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Bus Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Setting Bus Width for A6829A Host Bus Adapter Installed in PA-RISC Based

System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Setting Bus Width for A6829A Host Bus Adapter Installed in Itanium‚-Based

System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Setting SCSI Parameters to Default Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

hp servers rp7410, rp8400, and superdome. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

All Other Servers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Installing the SCSI Driver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Contents

Conﬁguring LUN 0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Adding Multi-Initiator Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Multi-Initiator Support for Itanium‚-Based System. . . . . . . . . . . . . . . . . . . . . . . . . . 57

Multi-Initiator Support for PA-RISC Based System. . . . . . . . . . . . . . . . . . . . . . . . . . 57

Verifying Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Using the EFI Flash Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Menu Driven Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

3. Troubleshooting

General Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

NVRAM SCSI Parameters Do Not Match . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Creating Missing Device Files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

If the A6829A Adapter is Not Claimed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Setting and Conﬁrming SCSI Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Setting and ConﬁrmingSCSI Parameters for HP A6829A HostBus Adapters Installed

in PA-RISC Based Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

The SCSI Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Setting and Conﬁrming SCSI Parameters for HP A6829A Host Bus Adapter Installed

in Itanium‚-Based Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Domain Validation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Using Support Tools Manager (STM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Contacting Your Hewlett-Packard Representative . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

A. SCSI Sense Codes

B. Technical Speciﬁcations

Physical Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

C. Regulatory Information

Regulatory Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

FCC Statement (For U.S.A. Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

IEC Statement (Worldwide). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Contents

DOC Statement (Canada). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Spéciﬁcation ATI Classe A (France) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

VCCI Statement (Japan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

vii

Contents

viii

Tables

Table 1. HP-UX 11i Releases. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

Table 2. Publishing History Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

Table 3. Document Organization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

Table 1-1. A6829A Supported HP-UX Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 2-1. Important OLAR Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 2-2. Ability to Set SCSI Parameters on HP-UX Systems. . . . . . . . . . . . . . . . . 24

Table 2-3. Record of SCSI IDs—A6829A Host Bus Adapter . . . . . . . . . . . . . . . . . . . 28

Table 2-4. Summary of A6829A Auto Termination Conﬁgurations. . . . . . . . . . . . . . 39

Table 2-5. Mapping of System Version to Driver Patch . . . . . . . . . . . . . . . . . . . . . . . 57

Table 3-1. Domain Validation Fallback Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Table A-1. SCSI Status Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Table A-2. SCSI Sense Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Table A-3. SCSI Additional Sense Code/Qualiﬁer Code Pairs. . . . . . . . . . . . . . . . . . 97

Tables

Figures

Figure 1-1. The A6829A PCI Dual Channel Ultra160 SCSI Host Bus Adapter. . . . . 4

Figure 2-1. SCSI Cable for External Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 2-2. Auto Termination Jumper Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Figures

xii

About This Document

This document describes how to install, conﬁgure, and troubleshoot HP A6829A PCI Dual Channel Ultra160 SCSI host bus adapter (HBA) on HP-UX 11.x platforms.

The document printing date and part number indicate the document’s current edition. The printing date will change when a new edition is printed. Minor changes may be made at reprint without changing the printing date. The document part number will change when extensive changes are made.

Document updates may be issued between editions to correct errors or document product changes. To ensure that you receive the updated or new editions, you should subscribe to the appropriate product support service. See your HP sales representative for details.

The latest version of this document can be found online at

http://docs.hp.com.

Intended Audience

This document is intended for system and network administrators responsible for installing, conﬁguring, and managing HP A6829A PCI Dual Channel Ultra160 SCSI HBA.

HP-UX Release Name and Release Identiﬁer

Each HP-UX 11i release has an associated release name and release identiﬁer. The uname (1) command with the -r option returns the release identiﬁer. Table 1 shows the releases available for HP-UX 11i.

Table 1 HP-UX 11i Releases

Release

Identiﬁer

B.11.11 HP-UX 11i v1 PA-RISC

B.11.20 HP-UX 11i v1.5 Intel Itanium

B.11.22 HP-UX 11i v1.6 Intel Itanium

Release Name

Supported Processor

Architecture

xiii

Table 1 HP-UX 11i Releases (Continued)

Release

Identiﬁer

B.11.23 HP-UX 11i v2.0 Intel Itanium

Release Name

Supported Processor

Architecture

Publishing History

The details of the document versions published for various HP-UX releases are mentioned in the following table:

Table 2 Publishing History Details

Document

Manufacturing

Part Number

A6829-96002 11.0

A6829-96001 11.0

Operating

Systems

Supported

11i v1 11i v2

11i v1

Supported

Product

Versions

B.11.00 B.11.11 B.11.23

B.11.00 B.11.11

Publication

Date

May 2003

March 2002

What’s in This Document

xiv

HP A6829A PCI Dual Channel Ultra160 SCSI Host Bus Adapter Service and User Guide is divided into several chapters, and each chapter

contains information on installing or conﬁguring the A6829A HBA. The appendixes area contains supplemental information.

Table 3 describes the content of the chapters in more detail.

Table 3 Document Organization

Chapter Description

HP A6829A Adapter Overview

Use this chapter to know about the A6829A HBA and its features.

Table 3 Document Organization (Continued)

Chapter Description

Installing the A6829A Adapter

Troubleshooting Use this chapter to learn about

Use this chapter to install the A6829A HBA, connect external SCSI peripherals, specify SCSI parameters, install SCSI driver, conﬁgure LUN 0, add multi-initiator support, verify the installation, and use the EFI utility.

troubleshooting techniques, known problems, workarounds, and how to contact your Hewlett-Packard representative.

New and Changed Documentation in This Edition

This edition includes the following changes:

• Information on the auto termination feature has been modiﬁed.

• Information on assigning and setting the SCSI IDs has been modiﬁed.

• Information on the Extended Firmware Interface Flash (EFI) utility has been added.

Typographical Conventions

This document uses the following conventions: Book Title The title of a book. On the web and on the Instant

Information CD, it may be a hot link to the book itself. Emphasis Text that is emphasized. Bold Text that is strongly emphasized. ComputerOut Text displayed by the computer. ... The preceding element may be repeated an arbitrary

number of times.

HP Welcomes Your Comments

HP welcomes any comments and suggestions you have on this manual. You can send your comments in the following ways:

• Internet electronic mail: netinfo_feedback@cup.hp.com

• Using a feedback form located at the following URL:

http://docs.hp.com/assistance/feedback.html

Please include the following information along with your comments:

• The complete title of the manual and the part number. (The part

number appears on the title page of printed and PDF versions of a manual.)

• The section numbers and page numbers of the information on which

you are commenting.

• The version of HP-UX that you are using.

xvi

1 HP A6829A Adapter Overview

Chapter 1 1

HP A6829A Adapter Overview

This chapter contains the following sections that describe the HP A6829A PCI Dual Channel Ultra160 SCSI host bus adapter (HBA):

• “About the A6829A Adapter” on page 3.

• “Features” on page 5.

Chapter 12

HP A6829A Adapter Overview

About the A6829A Adapter

The A6829A Dual Channel PCI Ultra160 SCSI host bus adapter (HBA) provides two Ultra160 SCSI-3 interfaces to PCI computer systems. When you install this adapter in your PCI system, it allows connection of up to 15 SCSI devices per channel, which means a total of 30 SCSI devices per A6829A adapter.

The A6829A provides 16-bit (Wide) Low Voltage Differential (LVD)or 16-bit (Wide) Single-Ended (SE) SCSI solutions for your system, using only one PCI slot. The A6829A also supports legacy Fast SCSI devices, Ultra SCSI devices, and Ultra2 SCSI devices.

Consult with your Hewlett-Packard representative for more information on speciﬁc system conﬁgurations.

Chapter 1 3

HP A6829A Adapter Overview

About the A6829A Adapter

Figure 1-1 below is a drawing (not to scale) of the A6829A adapter.

Figure 1-1 The A6829A PCI Dual Channel Ultra160 SCSI Host Bus Adapter

J6 Channel A

J4 Channel B 68-pin internal High Density (HD) SCSI connector

(not supported on HP-UX systems)

68-pin internal High Density (HD) SCSI connector

(not supported on HP-UX systems)

J3 Channel B 68-pin external Very High Density Cable Interconnect (VHDCI) SCSI connector

J2 Channel A 68-pin external Very High Density Cable Interconnect (VHDCI) SCSI connector

A_TERM Channel A termination pin set/jumper

B_TERM Channel B termination pin set/jumper

J1T PCI bus

edge connector

Chapter 14

HP A6829A Adapter Overview

Features

The A6829A adapter and its driver conform to the ANSI T10 SCSI Parallel Interace-3 (SPI-3) standard.

The A6829A adapter has the following features:

• PCI interface

— Full 64-bit (66 MHz) Direct Memory Access (DMA) bus master. — Zero wait-state bus master data bursts. — PCI Universal 3.3 V/5 V bus support. — Compliance with PCI Local Bus Speciﬁcation, Revision 2.2.

• SCSI interface

— Two separate SCSI channels. — 16-bit (Wide) Single Ended (SE)/Low Voltage Differential (LVD).

Features

— Enabling/disabling of on-board termination, with hardware

override (using jumpers).

— 68-pin Very High Density Cable Interconnect (VHDCI)

connector for each of the two external channels.

— 68-pin High Density connector for each of the two internal

channels (not supported on HP-UX systems).

— Maximum data transfer rate of 160 MBytes/s per channel, with a

maximum cable length of 12 meters (with multiple SCSI devices) and a maximum 15 SCSI devices per channel (not including the

A6829A adapter). — Fast, Ultra, Ultra2, and Ultra160 data transfer capability. — SCSI termination power (TERMPWR) source with auto-resetting

circuit breaker. — Flash EEPROM conﬁgured with HP part number (allows easy

identiﬁcation through the ioscan command).

• HBA characteristics

— PCI4X adapter (66MHz, 64-bit data transfers).

Chapter 1 5

HP A6829A Adapter Overview

Features

— PCI board dimensions: approximately 8.95 inches x 4.25 inches. — Universal 64-bit PCI card edge connector. — Four SCSI connectors:

— Two external 68-pin Very High Density Cable Interconnect

(VHDCI)—J2 and J3, one for each channel.

— Two internal 68-pin High Density (HD)—J4 and J6, one for

each channel. Note that the internal HD connectors are not supported on HP-UX systems.

— ISA/EISA bracket.

Chapter 16

2 Installing the A6829A Adapter

This chapter contains the following sections that describe how to install the A6829A adapter:

• “Overview of Installation Steps” on page 11.

Chapter 2 9

Installing the A6829A Adapter

• “Performance Tuning” on page 13.

• “Preparing for Installation” on page 14.

• “Installing the A6829A Adapter” on page 15.

• “Connecting External SCSI Peripherals” on page 21.

• “Specifying SCSI Parameters” on page 23.

• “Installing the SCSI Driver” on page 53.

• “Conﬁguring LUN 0” on page 55.

• “Adding Multi-Initiator Support” on page 56.

• “Verifying Installation” on page 58.

• “Using the EFI Flash Utility” on page 61.

NOTE This manual provides installation instructions and technical information

for qualiﬁed personnel who maintain or service HP-UX systems. Installing the adapter requires proﬁciency in both hardware conﬁguration and software administration.

Chapter 210

Installing the A6829A Adapter

Overview of Installation Steps

Here is a high-level view of the steps for installing the A6829A HBA:

Step 1. Review the recommendations for performance (see “Performance

Tuning” on page 13).

Step 2. Ensure that you have all the materials you will need (see “Preparing for

Installation” on page 14).

Step 3. Determine what you need to do (if anything) to conﬁgure auto

termination for the A6829A adapter (see “Auto Termination” on page 39).

Change the jumper position (see “Using the Jumper for Controlling Auto Termination” on page 40), if needed, and then go to step 4.

If you do not need to change the position of the jumpers, go to step 4.

Step 4. Install the adapter (see “Installing the A6829A Adapter” on page 15).

Step 5. Attach any external SCSI devices you want to connect to the adapter (see

“Connecting External SCSI Peripherals” on page 21).

Step 6. If necessary, set any of the following SCSI parameters:

• SCSI ID (see “SCSI IDs” on page 27).

• Maximum data transfer rate (see “Maximum Data Transfer Rate” on page 29).

• Auto termination (see “Auto Termination” on page 39).

• Bus width (see “Bus Width” on page 42).

Before setting the SCSI ID, Maximum data transfer rate, and Bus width parameters through Boot Control Handler (BCH) menus, ensure that the HP-UX system supports setting of these parameters in the BCH menus (see Table 2-2 on page 24).

Step 7. Install the c8xx SCSI driver from the latest HP-UX bundle or HP IT

Resource Center (ITRC) at http://itrc.hp.com.

See “Installing the SCSI Driver” on page 53.

Step 8. If you will be using a disk array in a multi-host environment, be sure you

have a LUN 0 conﬁgured (see “Conﬁguring LUN 0” on page 55).

Chapter 2 11

Installing the A6829A Adapter

Overview of Installation Steps

Step 9. Verify the installation (see “Verifying Installation” on page 58).

Chapter 212

Installing the A6829A Adapter

Performance Tuning

To get the best performance from the A6829A adapter, we recommend the following things:

• Increase the number speciﬁed for the scsi_max_qdepth kernel tunable parameter:

— HP-UX 11.0: scsi_max_qdepth is a static tunable that you can

change in SAM (“Kernel Conﬁguration” screen → “Conﬁgurable Parameters” screen). Note that because this is a static tunable, you will need to reboot the system after changing its value.

— HP-UX 11i: scsi_max_qdepth is a dynamic tunable, so no

system reboot is needed to change the parameter’s value. See “SCSI Queue Depth Management” in the HP-UX 11i Release Notes for more information about this tunable.

If you see “queue full” messages in the /var/adm/syslog.log ﬁle, you can avoid those messages by reducing the value for scsi_max_qdepth.

• Install the A6829A adapter in a PCI4X slot in the HP-UX system.

• Do not put any Single Ended (SE) SCSI devices on the same SCSI bus as Low Voltage Differential (LVD) SCSI devices. Doing this changes the entire bus to SE, which limits the bus to Ultra SCSI (40 MB/s).

• When you are assigning SCSI IDs to the SCSI devices on the bus, consider giving those devices the higher priorities on the bus (SCSI ID 7 is usually assigned to the HBA). See “SCSI IDs” on page 27 for more information.

• Ensure to set the adapter’s maximum data transfer rate to the correct rate (see “Maximum Data Transfer Rate” on page 29 for more information).

• Ensure to have the correct SCSI hardware conﬁguration. Domain Validation can detect some conﬁguration problems (see “Domain Validation” on page 100).

Chapter 2 13

Installing the A6829A Adapter

Preparing for Installation

Installing the A6829A adapter requires disassembly of some system components. Before beginning the installation, see the HP-UX system’s manual for detailed instructions about installing host bus adapters in the PCI slots.

To install the HBA, you need the following:

✓ One HP A6829A SCSI HBA. ✓ One grounding (ESD) kit (shipped with the A6829A). ✓ Any other tools needed for installing components in the HP-UX

system (for example, screwdrivers); see the system’s documentation.

NOTE The maximum number of SCSI HBAs you can install in any HP-UX

system is equal to the maximum number of corresponding card slots in the system. For example, if a system has four PCI card slots, you can install four SCSI PCI HBAs in that system, assuming that all the PCI card slots are empty.

Check the latest SCSI support matrix for systems that support the A6829A adapter. The support matrix is available at http://docs.hp.com under the Networking and Communications section.

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This section contains information about installing the A6829A HBA in an HP-UX system (including Online Addition and Replacement [OLAR]).

WARNING The installation procedures in this section require opening the

computer cabinet, which might expose you to high-energy (high-amperage) circuits and sharp edges in the equipment chassis. Be sure to remove all rings, watches, and other jewelry before opening the cabinet.

CAUTION The A6829A adapter contains electronic components that can easily be

damaged by small amount of static electricity. To avoid damage, follow these guidelines:

• Store the adapter in its antistatic plastic bag until you are ready to install it.

• Work in a static-free area, if possible.

• Handle the adapter by the edges only. Do not touch electronic components or electrical traces.

• If you must lay the adapter down, place it on a non-conductive mat or surface.

• Use the ESD kit that is provided with the adapter. Follow the instructions included with the kit.

• Use a suitable ground—any exposed metal surface on the system chassis.

Before beginning installation, and without removing the adapter from its antistatic bag, inspect the adapter for any signs of obvious damage, such as chipped or loose components. Contact Hewlett-Packard if the adapter is damaged.

Install the A6829A in your HP-UX system according to the documentation for the system.

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Installing the A6829A Adapter

NOTE As stated earlier, although the A6829A is supported on only 64-bit

HP-UX 11.0 and 11i, you can install the adapter in either a 32-bit or 64-bit PCI slot. Also, we recommend using a PCI4X slot, to get maximum performance. However, you can install the adapter in a PCI2X, PCI1X, or shared PCI slot, if necessary.

When you have ﬁnished installing the A6829A, go to the next section (“Connecting External SCSI Peripherals” on page 21).

Online Addition and Replacement—HP-UX 11i Only

Online Addition and Replacement (OLAR) is the ability of a PCI

host bus adapter to be replaced in or added to an HP-UX system designed to support this feature, without the need for completely shutting down and then rebooting the system or adversely affecting other system components. The system hardware uses the per-slot power control combined with OS support to enable this feature.

Check the latest SCSI support matrix that contains information on the HP-UX systems that support OLAR of the A6829A adapter. The support matrix is available at http://docs.hp.com under the Networking and Communications section.

IMPORTANT Certain “classes” of hardware are not intended for access by users. At

this time, this includes superdome systems. HP recommends that these systems be opened by only a qualiﬁed HP engineer. Failure to observe this requirement can invalidate any support agreement or warranty to which the owner might otherwise be entitled.

You can add or replace an OLAR-compatible adapter in either of these ways:

• Using the SAM utility.

• Issuing command-line commands, through rad, that refer to the c8xx OLAR script (/usr/sbin/olard.d/c8xx).

Chapter 216

HP recommends that you use SAM instead of the rad command to perform OLAR procedures. This is because for the most part, SAM prevents you from performing OLAR procedures that would adversely affect other areas of the system. This is not true when you use the rad command.

For detailed information about using either of these two procedures, see Conﬁguring HP-UX For Peripherals. You can order that document from Hewlett-Packard, or you can view, download, and print it from

http://www.docs.hp.com.

Table 2-1 below explains some important OLAR-related terms.

Table 2-1 Important OLAR Terms

Term Meaning

OLAR All aspects of the OLAR feature,

Power Domain A grouping of one or more

Installing the A6829A Adapter

including Online Addition (OLA) and Online Replacement (OLR).

interface adapter slots that are powered on or off as a unit. (Note: Currently, multi-slot power domains are not supported.)

target adapter / target adapter slot

affected adapter / affected adapter slot

IMPORTANT In many cases, other interface adapters and slots within the system are

dependent on the target adapter. For example, if the target adapter is a multiple-channel adapter, suspending or deleting drivers for the target adapter slot also suspends individual drivers for the multiple hardware paths on that adapter.

Chapter 2 17

The interfaceadapter that will be added or replaced using OLAR, and the adapter slot it is in.

Interface adapters and the adapter slots they are in, and which are in the same power domain as the target slot.

Installing the A6829A Adapter

During an adapter replacement operation, SAM performs a Critical Resource Analysis (CRA), which checks all channels on the target

adapter for critical resources that will be temporarily unavailable while the adapter is shut down.

Planning and Preparation

As mentioned earlier, for the most part, SAM prevents you from performing OLAR procedures that would adversly affect other areas of the HP-UX system. See Conﬁguring HP-UX For Peripherals for detailed information.

Critical Resources

Replacing an adapter that is still operating can have adverse consequences. As power to the slot must be off when the old adapter is removed and the new adapter is inserted, you must consider the effects of shutting down the adapter’s functions.

This is particularly important if no online failover or backup adapter to pick up those functions is installed. For example:

• Which mass storage devices will be temporarily disconnected when the adapter is shut down?

• Will a critical networking connection be lost?

A critical resource is one that would cause a system crash or prevent the operation from completing successfully if the resources were temporarily suspended or disconnected. For example, if the SCSI adapter to be replaced connects to the unmirrored root disk or swap space, the system will crash when the adapter is shut down.

During an OLAR procedure, it is essential to check the targeted adapter for critical resources, as well as the effects of existing disk mirrors and other situations where an adapter’s functions can be taken over by another adapter that will not be affected.

As mentioned earlier, SAM performs a thorough CRA automatically, and presents options based on its ﬁndings. If you determine that critical resources will be affected by the procedure, you could replace the adapter when the system is ofﬂine. On the other hand, if you are required to take an action immediately, you can use the rad command to try an online addition of a backup adapter and deletion of the target adapter.

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Adapter Compatibility

This section explains adapter compatibility considerations for performing OLA and OLR.

Online Addition (OLA) You can add multiple adapters at the same time. While adding an adapter online, the ﬁrst issue you must resolve is whether the new adapter is compatible with the system. Each OLAR-capable PCI slot provides a set amount of power. The replacement adapter cannot require more than the available power.

The adapter must also operate at the slot’s bus frequency. A PCI adapter must run at any frequency lower than its maximum capability, but an adapter that could operate at only 33 MHz would not work on a bus running at 66 MHz. The SCSI A6829A HBA operates at 66MHz. The rad command provides information on the bus frequency and power available at a slot, as well as other slot-related data.

If your system has one or more slots that support OLAR, and you want to use OLA to install the A6829A in one of those slots, install the adapter in your HP-UX system according to the procedure described in the “Managing PCI Cards with OLAR” chapter of the Conﬁguring HP-UX Peripherals manual.

After you add a new A6829A adapter, SAM tries to locate the SCSI c8xx driver. If SAM is unable to locate the driver, you cannot use the new adapter until you install the driver (remember that driver installation requires a system reboot). If SAM locates the driver, it determines whether the new adapter is functional. If the adapter is not functional, SAM displays an error message.

Online Replacement (OLR) While replacing an interface adapter online, the replacement adapter must be identical to the adapter being replaced, or at least be able to operate using the same driver as the replaced adapter. This is referred to as like-for-like replacement and should be adhered to, because using a similar but not identical adapter can cause unpredictable results.

For example, a newer version of the target adapter that is identical to the older adapter in terms of hardware might contain an updated ﬁrmware version that could potentially conﬂict with the current driver. In addition, the old adapter and new adapter must have the same PCI identiﬁers (subsystem ID and device ID).

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Installing the A6829A Adapter

The PCI speciﬁcation allows a single physical adapter to contain more than one channel. A single channel SCSI adapter cannot be replaced by a dual channel adapter, even if the additional channel(s) on the adapter are identical to the original SCSI adapter.

When the replacement adapter is added to the system, the appropriate driver for that adapter must be conﬁgured in the kernel before beginning the replacement operation. SAM ensures the correct driver is present. (In most cases, the replacement adapter will be of the same type as an adapter already in the system, and this requirement will be automatically met.) Keep the following things in mind:

• If the necessary driver is not present and the driver is a dynamically loadable kernel module (DLKM), you can load it manually. See the section “Dynamically Loadable Kernel Modules” in Conﬁguring HP-UX For Peripherals for more information.

• If the driver is static and not conﬁgured in the kernel, then the adapter cannot be added online. The adapter could be physically inserted online, but no driver will claim it. Note that the SCSI c8xx driver is a static driver.

If you have any question about the driver’s presence, or if you are not certain that the replacement adapter is identical to the existing adapter, you can use the ioscan command together with the rad command to investigate.

SAM does not allow the A6829A adapter to be suspended in either of the following situations:

• If the adapter is being used (for example, if a ﬁle system is mounted).

• If the CRA shows that a critical resource (for example, swap space or the root ﬁle system) depends on the adapter.

After you replace an A6829A adapter online, SAM checks the replacement adapter to make sure it is permitted, according to the like-for-like rules. If the adapter is permitted, SAM automatically activates it. If it is not permitted, SAM displays an error message.

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Connecting External SCSI Peripherals

The A6829A adapter is capable of communicating with Low Voltage Differential (LVD) or Single Ended (SE) SCSI devices. LVD allows up to 12m cable lengths with multiple SCSI devices, or 25m point-to-point connections.

IMPORTANT As stated earlier in this chapter, do not mix LVD SCSI devices with SE

SCSI devices on the bus. If you do so, the entire SCSI bus will change to SE. This will limit the bus performance to Ultra SCSI (40 MB/s).

Make all external SCSI bus connections to the A6829A adapter with shielded, 68-pin LVD cables. The connectors on the cable are always keyed to ensure proper mating.

NOTE No cables or external terminators are shipped with the A6829A adapter.

Cables usually are shipped with the external SCSI devices, and you can get external terminators for the A6829A by ordering SCSI LVD/SE terminator (HP product number C2370A).

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Connecting External SCSI Peripherals

Figure 2-1 below is a drawing (not to scale) of a typical SCSI shielded 68-pin LVD cable.

Figure 2-1 SCSI Cable for External Connections

Shielded external High Density 68-pin SCSI LVD cable

68-pin VHDCI

(connect to adapter)

68-pin HD

(connect to external

SCSI device)

To connect external SCSI devices to the A6829A adapter, perform the following steps:

Step 1. Plug the 68-pin VHDCI connector on one end of a shielded external high

density SCSI cable into the adapter’s external connector (J2 or J3).

Step 2. Plug the 68-pin HD connector on the other end of the cable into the SCSI

connector on the external SCSI device.

Step 3. If you need to connect more than one external SCSI device to the adapter,

daisy chain them together with shielded external SCSI cables.

If auto termination is disabled and you want to terminate an external connector on the HBA, use SCSI LVD/SE terminator (HP product number C2370A). For more information on auto termination, see “Auto Termination” on page 39.

When you have ﬁnished connecting the external devices, go to the section, “Specifying SCSI Parameters” on page 23.

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Specifying SCSI Parameters

To ensure proper operation of the A6829A adapter, the following SCSI parameters that apply to the entire adapter must be conﬁgured correctly:

• SCSI ID (SCSI initiator ID)—see “SCSI IDs” on page 27.

• Maximum data transfer rate (SCSI rate)—see “Maximum Data Transfer Rate” on page 29.

• Auto termination state—see “Auto Termination” on page 39.

• Bus width—see “Bus Width” on page 42.

NOTE For some of these parameters, you can set the value through commands

in the Boot Console Handler (BCH) menus (on some HP-UX systems); see Table 2-2 on page 24.

The BCH menus are displayed after the system has booted and before the OS is running.

If the adapter is new, the SCSI driver uses a default setting suggested by the system’s ﬁrmware, unless you specify a setting through the BCH menus (if possible). This also happens if the slot in which you install the adapter has no prior setting for a particular SCSI parameter

If the adapter is new and the slot does have a prior setting, the driver uses that setting unless you change it through the BCH menus (if possible).

If the adapter has been used in another slot or in a different system, you must set the SCSI parameters for the adapter back to their default values. This is because previously set values for the adapter cannot be migrated to the new slot or system. See “Setting SCSI Parameters to Default Values” on page 52 for the steps to follow.

Table 2-2 below is a summary of the supported HP-UX systems and the SCSI parameters you can set on each one. This table assumes that you have correct version of PDC on the HP-UX system. To know about the

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correct PDC version information, see the latest SCSI support matrix available at http://docs.hp.com under the Networking and Communications section.

Table 2-2 Ability to Set SCSI Parameters on HP-UX Systems

Method for Setting Parameter

HP-UX

System

a400 and a500 servers

l-class servers

n-class servers

SCSI

Parameter

SCSI ID ✓✓

Maximum data transfer rate

Auto term state

Bus width ✓

SCSI ID ✓✓

Maximum data transfer rate

Auto term state

Bus width ✓

SCSI ID ✓✓

Maximum data transfer rate

Firmware

Suggested

Default

✓✓

BCH

Commands

Jumper

(for the

Single

Channel)

✓

Auto term state

Bus width ✓

✓

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Table 2-2 Ability to Set SCSI Parameters on HP-UX Systems (Continued)

Method for Setting Parameter

HP-UX

System

hp server rp24

hp server rp54

hp server rp74

SCSI

Parameter

Firmware

Suggested

Default

BCH

Commands

SCSI ID ✓✓

Maximum

✓✓

data transfer rate

Auto term state

Bus width ✓

SCSI ID ✓✓

Maximum data

✓✓

transfer rate

Auto term state

Bus width ✓

SCSI ID ✓✓

Maximum data

✓✓

transfer rate

Jumper

(for the

Single

Channel)

✓

Auto term

state

✓

Bus width ✓✓

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Table 2-2 Ability to Set SCSI Parameters on HP-UX Systems (Continued)

Method for Setting Parameter

HP-UX

System

hp server rp8400

hp superd ome servers

SCSI

Parameter

Firmware

Suggested

Default

BCH

Commands

SCSI ID ✓✓

Maximum

✓✓

data transfer rate

Auto term

state

Bus width ✓✓

SCSI ID ✓✓

Maximum data

✓✓

transfer rate

Auto term

state

Bus width ✓✓

Jumper

(for the

Single

Channel)

✓

See “Summary of Auto Termination Conﬁgurations” on page 39 for information on systems where you can use the jumper to control auto termination.

Information on conﬁguring each of the SCSI parameters is given in the later sections.

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SCSI IDs

You must assign a separate SCSI ID (0 through 15 for a 16-bit SCSI bus) to the SCSI host bus adapter (HBA) and each SCSI device. The priority of the device on the SCSI bus is determined by the SCSI ID of the device. The order of SCSI ID priorities (from highest to lowest) is 7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, and 8. A device with SCSI ID 7 has the highest priority, and one with SCSI ID 8 has the lowest.

When you are assigning SCSI IDs, HP recommends you to give the SCSI HBA higher priority than the other SCSI devices on the bus. SCSI ID 7 is the preset SCSI ID for the A6829A SCSI HBA, thereby giving it the highest priority on the SCSI bus. Set each of the other SCSI devices on the bus to one of the remaining SCSI IDs.

In a multi-initiator (High Availability [HA]) conﬁguration, multiple SCSI HBAs are connected to the same SCSI bus. For such conﬁguration, the SCSI HBA that carries most of the trafﬁc must be assigned a SCSI ID of 7 (highest priority). Later, you must change the SCSI ID of each of the remaining SCSI HBAs on the bus from the preset setting (7) to the next highest priority remaining SCSI IDs (for example, 6, 5, 4, and so on).

If you plan to boot your system from a hard disk drive on the SCSI bus, you must assign that drive the next highest priority unassigned SCSI ID. If there is only one SCSI HBA (SCSI ID = 7), the hard disk drive will be assigned a SCSI ID of 6. If there are multiple SCSI HBAs, the hard disk drive will be assigned the next highest priority SCSI ID available after all of the SCSI HBAs have been assigned higher priority SCSI IDs.

Setting SCSI IDs

To set the SCSI ID of the A6829A HBA, see “Setting and Conﬁrming SCSI Parameters” on page 90.

The peripheral device SCSI IDs are usually set with jumpers or a switch on the peripheral. Refer to the peripheral manufacturer’s instructions to determine the ID of each device and how to change it.

IMPORTANT You must not have duplicate SCSI IDs on a SCSI bus; the system may

hang or crash if you have duplicate SCSI IDs on the bus.

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Make necessary changes, if any, to the SCSI IDs and record the SCSI IDs for future reference. To keep a record of the SCSI IDs, you can use Table 2-3.

Table 2-3 Record of SCSI IDs—A6829A Host Bus Adapter

SCSI ID SCSI Device

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Maximum Data Transfer Rate

The ﬁrmware suggested default for the A6829A adapter’s maximum data transfer rate is the adapter’s maximum speed (160 MB/s). The A6829A can communicate with all LVD or SE devices that have speeds up to 160 MB/s. This includes the following speeds (synchronous communication over a Wide bus):

• Fast (20 MB/s)

• Ultra (40 MB/s)

• Ultra2 (80 MB/s)

• Ultra160 (160 MB/s) The actual transfer rate between the adapter and a SCSI device depends

on the transfer rate that was negotiated between the adapter and the SCSI device. However, the actual rate will never be greater than the maximum data transfer rate set for the adapter.

For example, if you set the A6829A’s maximum data transfer rate to NOLIMIT (which is same as 160 MB/s, in this case), and then connect a disk drive that has a maximum data transfer rate of Ultra2 (80 MB/s), the actual transfer rate will be 80 MB/s.

TIP HP recommends that you always set the A6829A’s maximum data

transfer rate to MAX or NOLIMIT (whichever is applicable to the system), unless you are trying to debug a communication problem between the adapter and a speciﬁc SCSI device. Using MAX or NOLIMIT allows the adapter’s maximum transfer rate (160 MB/s) to be used.

You can set the A6829A’s maximum data transfer rate in two ways, as shown in Table 2-2 on page 24.

To set the maximum data transfer rate for A6829A HBA installed in PA-RISC based system, see “Setting Maximum Data Transfer Rate for A6829A Host Bus Adapter Installed in PA-RISC Based System” on page 30.

To set the maximum data transfer rate for A6829A HBA installed in Itanium-based system, see “Setting Maximum Data Transfer Rate for A6829A Host Bus Adapter Installed in Itanium‚-Based System” on page 34.

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Setting Maximum Data Transfer Rate for A6829A Host Bus Adapter Installed in PA-RISC Based System

If the HP A6829A HBA is installed in a supported PA-RISC based system, use the BCH menu to set the maximum data transfer rate.

The steps for setting the maximum data transfer rate through the BCH menus (if you do not want to use the default suggested by the system’s ﬁrmware) are mentioned later in this section.

NOTE The following steps and examples are speciﬁc to an hp server rp7410.

Menus, command syntax, and responses might be slightly different on other systems (for example, a maximum data transfer rate of Ultra2 is not allowed on some HP-UX systems).

For command syntax and valid maximum data transfer rate values, HP recommends you to use the online help for the scsi command (type help scsi when you are in the BCH “Service Menu”).

To display and optionally change the A6829A adapter’s maximum data transfer rate in the BCH menus, perform the following steps:

Step 1. At the “Information Menu,” type fv (to display the PDC version). The

output is as follows:

FIRMWARE INFORMATION

Firmware Version: 15.3

To know about the correct PDC version information, see the latest SCSI support matrix available at http://docs.hp.com under the Networking and Communications section.

If you do not have a correct PDC version on your system, contact your HP support representative.

Step 2. Determine the HBA’s path by performing the following steps:

a. If you are already at the “Main Menu,” type in (for “Information

Menu”), and then go to step b. If you are not at the “Main Menu,” type main (to return to the “Main

Menu”), type in (for “Information Menu”), and then go to step b.

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b. At the “Information Menu,” type io (to display I/O interface

information). The output is as follows:

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Installing the A6829A Adapter

Specifying SCSI Parameters

PCI DEVICE INFORMATION

Path Bus Slot Vendor Device

Description (dec) # # Id Id

----------- ----- --- ------ ------ -----. . SCSI bus cntlr 0/0/10/0/0 80 2 0x1000 0x0021 SCSI bus cntlr 0/0/10/0/1 80 2 0x1000 0x0021 . .

In this example, the HBA’s path is 0/0/10/0/0 and 0/0/10/0/1 (shown in bold in the listing above, for highlighting purposes). Note that the last (farthest right) digit is the channel number—0 for channel A, and 1 for channel B.

Step 3. Display (and optionally change) the HBA’s maximum data transfer rate

by performing the following steps:

a. If you are already at the “Main Menu,” type ser (for “Service Menu”);

go to step b. If you are not at the “Main Menu,” type main (to return to the “Main

Menu”), type ser (for “Service Menu”), and then go to step b.

b. In the “Service Menu,” type the following command:

scsi

path

rate

where

path

is the HBA’s path (from step 1).

Therefore, using the information for channel A of the HBA in the example in step 1, type the following:

scsi 0/0/10/0/0 rate

This displays the HBA’s maximum data transfer rate. The output is as follows:

Path (dec) Initiator ID SCSI Rate Auto Term Bus Width

----------------- ------------ --------- --------- --------0/0/10/0/0 7 MAX ON MAX

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In this example, the HBA’s maximum data transfer rate for channel A is MAX (shown in bold in the previous listing, for highlighting purposes). As mentioned earlier, this is the ﬁrmware suggested default setting, and it allows the A6829A’s maximum data rate (160 MB/s) to be used.

If you want to retain the maximum data transfer rate, type main to go back to the “Main Menu”.

If you want to change the data transfer rate (for example, to troubleshoot communications between the adapter and an Ultra-capable SCSI disk), go to step c.

c. If you are still in the “Service Menu,” type the following command:

scsi

path

rate

new_data_rate

where, to change the HBA’s maximum data transfer rate to (ULTRA, for this example).

Therefore, using the information for the HBA in step b, type the following:

scsi 0/0/10/0/0 rate ultra

This changes the HBA’s maximum data transfer rate to ULTRA (40 MB/s).

To ensure that the data transfer rate has changed, you can repeat step b to display the HBA’s transfer rate.

When your troubleshooting is complete, and you want to change the adapter’s transfer rate back to MAX, go to step d.

d. If you are still in “Service Menu”, type the following command:

scsi

where, to change the HBA’s maximum data transfer rate to (MAX, for this example).

Therefore, using the information for the HBA in step c, type the following:

scsi 0/0/10/0/0 rate nolimit

path

is the HBA’s path and

rate

path

new_data_rate

is the HBA’s path and

new_data_rate

is what you want

This changes the HBA’s maximum data transfer rate back to MAX (160 MB/s).

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Specifying SCSI Parameters

To ensure that the data transfer rate has changed, you can repeat step b to display the HBA’s transfer rate.

When you are satisﬁed that the maximum data transfer rate is set correctly, type main to go back to the “Main Menu.”

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Setting Maximum Data Transfer Rate for A6829A Host Bus Adapter Installed in Itanium-Based System

If the HP A6829A HBA is installed in a supported Itanium-based system, use the following procedure to set maximum data transfer rate:

Step 1. At the EFI Shell prompt, issue the drivers command as illustrated in

the following example:

Shell> drivers

TD D YCI R PFA V VERSION EGG#D#CDRIVER NAME IMAGE NAME == ======== ========================================== =================== 14 00000010 B - - 8 18 PCI Bus Driver PciBus 20 01010201 D X X 5 - LSI Logic Ultra160 SCSI Driver PciRomSeg=00000000 21 01010201 D X X 1 - LSI Logic Ultra160 SCSI Driver PciRomSeg=00000000 24 00000200 D X X 3 - LSI Logic Ultra SCSI Driver PciRomSeg=00000000 25 00000200 D X X 1 - LSI Logic Ultra SCSI Driver PciRomSeg=00000000 28 01010201 D X X 1 - LSI Logic Ultra160 SCSI Driver PciRomSeg=00000000 2D 00000105 D X X 1 - HP Tachyon XL2 Fibre Channel Mass S PciRomSeg=00000000 2E 00000105 D X X 2 - HP Tachyon XL2 Fibre Channel Mass S PciRomSeg=00000000 31 00000020 ? - - - - USB Keyboard Driver UsbKeyBoard 32 00000010 ? - - - - UGA Console Driver GraphicsConsole 33 00000000 ? - - - - PCI VGA Mini Port Driver PciVgaMiniPort 34 00000010 ? - - - - VGA Class Driver VgaClassDriver 35 00000010 B - - 1 1 Serial 16550 UART Driver Serial16550 36 00000010 B - - 1 1 Serial Terminal Driver Terminal 37 00000010 D - - 1 - Platform Console Management Driver ConPlatform 38 00000010 D - - 1 - Platform Console Management Driver ConPlatform 39 00000010 B - - 1 1 Console Splitter Driver ConSplitter

Step 2. Find the driver handle designation <drvr_handle>.

For the A6829A HBA, the <drvr_ handle> designation will be in the DRV column that corresponds to the LSI Logic Ultra160 SCSI Driver listing in the DRIVER NAME column.

In the preceding example, there are two versions of the LSI Logic Ultra160 SCSI Driver. The <drvr_handle> designations that correspond to the two LSI Logic Ultra SCSI Drivers are 20 and 21.

Step 3. Find the controller handle designation, <cntrl_handle>.

At the EFI Shell prompt, issue the drvcfg command as illustrated in the following example:

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Installing the A6829A Adapter

Specifying SCSI Parameters

Shell> drvcfg Configurable Components

Drv[20] Ctrl [1A] Lang [eng] Drv[20] Ctrl [1B] Lang [eng] Drv[20] Ctrl [1D] Lang [eng] Drv[20] Ctrl [1E] Lang [eng] Drv[20] Ctrl [23] Lang [eng] Drv[21] Ctrl [22] Lang [eng] Drv[24] Ctrl [27] Lang [eng] Drv[24] Ctrl [2B] Lang [eng] Drv[24] Ctrl [2C] Lang [eng] Drv[25] Ctrl [26] Lang [eng] Drv[28] Ctrl [29] Lang [eng] Drv[2D] Ctrl [30] Lang [eng] Drv[2E] Ctrl [2A] Lang [eng] Drv[2E] Ctrl [2F] Lang [eng] Drv[48] Ctrl [1F] Lang [eng]

From the output of the drvcfg command, look for the line(s) where the NN in Drv[NN]is same as the <drvr_handle> for the driver(s) you are using.

The 2nd column, Ctrl [NN], contains the corresponding <cntrl_handle>, where NN is the controller handle. For example, controller handle 1A, 1B, 1D, 1E, and 23 correspond to driver handle 20, and controller handle 22 corresponds to driver handle 21.

Step 4. Once the driver handle and the controller handle are identiﬁed, the SCSI

parameters can be displayed and set for any driver and corresponding controller (HBA) on the SCSI bus.

Enter the drvcfg -s <drvr_handle> <cntrl_handle> command at EFI shell prompt. The Global Properties screen containing a list of the controller (HBA) to which the controller handle corresponds is displayed; refer to the following example:

LSI Logic Host Bus Adapters Adapter PCI PCI PCI IRQ NVM LSI Logic

Bus Device Function Control

<53C875 60 01 01> 0 Yes Enabled

Press the [Enter] key. This displays the Adapter Properties screen containing the controller (HBA) settings; refer to the following example:

Chapter 236

Step 5. Use the arrow keys to highlight the Device Properties option, and press

Device Properties

Installing the A6829A Adapter

Specifying SCSI Parameters

Adapter Properties

Adapter PCI PCI PCI

Bus Device Function

53C875 60 01 01

Boot Support [Enabled] SCSI Parity [Yes] Host SCSI ID [ 5] SCSI Bus Scan Order [Low to High (0..Max)] Spinup Delay (Secs) [ 2] Secondary Cluster Server [Yes] Termination Control [Auto] <Restore Defaults>

the [Enter] key. This displays the Device Properties screen; refer to the following example:

SCSI Device Identifier MB/Sec MT/Sec Data Scan Scan ID Width ID LUNs > 0

0 - 160 [80] [16] [Yes] [Yes] 1 HP 18.2GST318406LC HP05 160 [80] [16] [Yes] [Yes] 2 HP 18.2GST318406LC HP05 160 [80] [16] [Yes] [Yes] 3 HP 18.2GST318406LC HP05 160 [80] [16] [Yes] [Yes] 4 - 160 [80] [16] [Yes] [Yes] 5 - 160 [80] [16] [Yes] [Yes] 6 53C1010-66 160 [80] [16] [Yes] [Yes] 7 - 160 [80] [16] [Yes] [Yes] 8 - 160 [80] [16] [Yes] [Yes]

9 - 160 [80] [16] [Yes] [Yes] 10 - 160 [80] [16] [Yes] [Yes] 11 HP 18.2GST318406LC HP05 160 [80] [16] [Yes] [Yes] 12 HP 18.2GST318406LC HP05 160 [80] [16] [Yes] [Yes] 13 - 160 [80] [16] [Yes] [Yes] 14 - 160 [80] [16] [Yes] [Yes] 15 HP A6491A HP16 160 [80] [16] [Yes] [Yes]

To change the maximum data transfer rate of the required device, use the arrow keys to highlight the corresponding option under the MT/Sec column, and then use the plus (+) or minus (-) keys to change the values.

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NOTE If you set a particular maximum data transfer rate to the SCSI controller

(in this example, 53C1010-66), then the same maximum data transfer rate is set to all the devices.

This happens because all the devices are connected to the same SCSI bus, which is controlled by the SCSI controller.

Step 6. After making the necessary changes, press the [ESC] key to exit the

Device Properties screen. This takes you back to the Adapter Properties screen.

Step 7. Press the [ESC] key to exit the Adapter Properties screen.

If you did not modify any of the SCSI parameters, then the Global Properties screen appears.

However, if you modiﬁed any of the SCSI parameters, then the following screen appears:

Adapter and/or device property changes have been made.

<Cancel Exit> <Save changes then exit this menu> <Discard changes then exit this menu> Exit the Configuration Utility

Use the arrow keys to highlight your selection from the listed choices, and then press the [ENTER] key to return to the Global Properties screen.

Step 8. Press the [ESC] key. This displays the following screen:

Are you sure you want to exit?

<Cancel Exit> Save changes then exit this menu Discard changes then exit this menu <Exit the Configuration Utility>

Use the arrow keys to highlight your selection from the listed choices, and then press the [ENTER] key to return to the EFI shell prompt.

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Step 9. At the EFI shell prompt, issue the following command to reboot the

system:

reset

NOTE The system reboot is required for the new setting to take effect.

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Auto Termination

When you conﬁgure the A6829A adapter’s auto termination parameter, you specify the adapter’s role in the SCSI bus termination, because the adapter might be a point of termination.

For more information on SCSI bus termination, including a tutorial, you can visit HP IT Resource Center (ITRC) at http://itrc.hp.com.

Controlling Auto Termination

You can control auto termination in the A6829A adapter (see “Using the Jumper for Controlling Auto Termination” on page 40) depending upon the HP-UX system in which the adapter is installed (see Table 2-2 on page 24).

Summary of Auto Termination Conﬁgurations

Table 2-4 summarizes the possible A6829A auto termination conﬁgurations.

Table 2-4 Summary of A6829A Auto Termination Conﬁgurations

Termination

Applied on

Adapter

Jumper Position

Auto Termination

Feature

Open/ON/ON Enabled Yes

Open/OFF/ON Disabled

Shorted/ON/ON Disabled

Shorted/OFF/ON Disabled

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Table 2-4 Summary of A6829A Auto Termination Conﬁgurations

Jumper Position

An external terminator might be required on the adapter, depending

Auto Termination

Feature

Termination

Applied on

Adapter

on the SCSI bus conﬁguration. If you need an external terminator for the A6829A, use SCSI LVD/SE terminator (HP product number C2370A).

Using the Jumper for Controlling Auto Termination

The A6829A adapter has two sets of pins that control enabling and disabling of the auto termination feature. The pins—labeled A_TERM and B_TERM—are at the end of the HBA that is opposite to the bulkhead connectors. Figure 1-1 on page 20 shows where the pin sets are located on the adapter. A_TERM controls the auto termination feature for channel A, and B_TERM controls the feature for channel B.

The default setting of each pin set on the A6829A HBA is the open position (the jumper is on only one pin of its pin set). This is the auto termination enabled state. In this state, the A6829A automatically senses whether a cable from a powered SCSI device is attached and provides the proper termination (depending on whether a powered device is present).

To disable auto termination on the adapter, change the jumper from the default open position to the shorted position (the jumper is on both pins of the pin set). This is the auto termination disabled state.

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The following Figure 2-2 shows the two jumper positions.

Figure 2-2 Auto Termination Jumper Positions

Open

(Auto termination enabled)

Shorted

(Auto termination disabled)

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Bus Width

The ﬁrmware suggested default for the A6829A adapter’s bus width is MAX (use the adapter’s maximum bus width [16 bits]). However, either of these rates can be used for the A6829A:

• 8 bits (Narrow)

• 16 bits (Wide)

TIP HP recommends you to always use the A6829A’s maximum bus width

(16 bits), unless you have Narrow (8-bit) devices on the bus and you are experiencing problems with the connection.

You can set the A6829A’s bus width in one or two ways, depending on the HP-UX system the adapter is installed in (refer to Table 2-2 on page 24).

To set the bus width for A6829A HBA installed in PA-RISC based system, see “Setting Bus Width for A6829A Host Bus Adapter Installed in PA-RISC Based System” on page 43.

To set the bus width for A6829A HBA installed in Itanium-based system, see “Setting Bus Width for A6829A Host Bus Adapter Installed in Itanium‚-Based System” on page 47.

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Setting Bus Width for A6829A Host Bus Adapter Installed in PA-RISC Based System

If the HP A6829A HBA is installed in a supported PA-RISC based system, use the BCH menu to set the bus width.

The steps for setting the bus width through the BCH menus (if you do not want to use the default suggested by the system’s ﬁrmware) are given below.

NOTE The following steps and examples are speciﬁc to HP server rp7410.

Menus, command syntax, and responses might be slightly different on other systems.

For command syntax and valid bus width values, HP recommends you to use the online help for the scsi command (type help scsi when you are in the BCH “Service Menu”).

To display and optionally change the A6829A adapter’s bus width in the BCH menus, perform the following steps:

Step 1. Check the PDC (system ﬁrmware) version by performing the following

steps:

a. If you are already at the “Main Menu,” type in (for “Information

Menu”); go to step b. If you are not at the “Main Menu,” type main (to return to the “Main

Menu”), type in (for “Information Menu”), and then go to step b.

b. At the “Information Menu,” type fv (to display the PDC version). The

output is as follows:

FIRMWARE INFORMATION

Firmware Version: 15.3

To know about the correct PDC version information, see the latest SCSI support matrix available at http://docs.hp.com under the Networking and Communications section.

If you do not have a correct PDC version on your system, contact your HP support representative.

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Step 2. Determine the HBA’s path by doing the following:

a. If you are already at the “Main Menu,” type in (for “Information

Menu”); go to step b. If you are not at the “Main Menu,” type main (to return to the “Main

Menu”), type in (for “Information Menu”), and then go to step b.

b. At the “Information Menu,” type io (to display I/O interface

information). The output is as follows:

PCI DEVICE INFORMATION

Path Bus Slot Vendor Device

Description (dec) # # Id Id

----------- ----- --- ------ ------ -----. . SCSI bus cntlr 0/0/10/0/0 80 2 0x1000 0x0021 SCSI bus cntlr 0/0/10/0/1 80 2 0x1000 0x0021 . .

Step 3. Display (and optionally change) the HBA’s bus width by performing the

following steps:

a. If you are already at the “Main Menu,” type ser (for “Service Menu”);

go to step b. If you are not at the “Main Menu,” type main (to return to the “Main

Menu”), type ser (for “Service Menu”), and then go to step b.

b. In the “Service Menu,” type the following command:

scsi

path

width

where,

path

is the HBA’s path (from step 1).

Therefore, using the information for channel A of the HBA in the example in step 1, type the following:

scsi 0/0/10/0/0 width

This displays the HBA’s bus width. The output is as follows:

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Path (dec) Initiator ID SCSI Rate Auto Term Bus Width

----------------- ------------ --------- --------- --------0/0/10/0/0 7 MAX ON MAX

In this example, the HBA’s bus width is MAX (shown in bold in the previous listing). As mentioned earlier, this is the ﬁrmware suggested default setting.

If you want to retain the bus width, type main to go back to the “Main Menu”; you are ﬁnished with the bus width for channel A.

If you want to change the bus width (for example, because you have Narrow devices on the SCSI bus and you are having problems with the connection), go to step c.

c. If you are still in the “Service Menu,” type the following command:

scsi

path

width

new_bus_width

where,

path

is the HBA’s path and

new_bus_width

is what you want

to set the HBA’s bus width to (8, for this example). Therefore, using the information for the HBA in step b, type the

following:

scsi 6/0/4/0/0 width 8

This changes the HBA’s bus width to 8. To ensure that the bus width has changed, you can repeat step b to

display the HBA’s bus width. When you have ﬁxed the problem with the connection, and you want

to change the adapter’s bus width back to MAX, go to step d.

d. If you are still in “Service Menu”, type the following command:

scsi

path

where,

width

path

new_bus_width

is the HBA’s path and

new_bus_width

is what you want

to change the HBA’s bus width to (MAX, for this example). Therefore, using the information for the HBA in step c above, type the

following:

scsi 0/0/10/0/0 width 0

This changes the HBA’s bus width back to MAX. To ensure that the bus width has changed, you can repeat step b to

display the HBA’s bus width.

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When you are satisﬁed that the bus width is set correctly, type main to get back to the “Main Menu.”

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Setting Bus Width for A6829A Host Bus Adapter Installed in Itanium-Based System

If the HP A6829A HBA is installed in a supported Itanium-based system, use the following procedure to set the bus width:

Step 1. At the EFI Shell prompt, issue the drivers command as illustrated in

the following example:

Shell> drivers

Step 2. Find the driver handle designation <drvr_handle>.

For the A6829A HBA, the <drvr_ handle> designation will be in the DRV column that corresponds to the LSI Logic Ultra160 SCSI Driver listing in the DRIVER NAME column.

In the preceding example, there are two versions of the LSI Logic Ultra160 SCSI Driver. The <drvr_handle> designations that correspond to the two LSI Logic Ultra SCSI Drivers are 20 and 21.

Step 3. Find the controller handle designation, <cntrl_handle>.

At the EFI Shell prompt, issue the drvcfg command as illustrated in the following example:

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Shell> drvcfg Configurable Components

From the output of the drvcfg command, look for the line(s) where the NN in Drv[NN]is same as the <drvr_handle> for the driver(s) you are using.

Step 4. Once the driver handle and the controller handle are identiﬁed, the SCSI

parameters can be displayed and set for any driver and corresponding controller (HBA) on the SCSI bus.

LSI Logic Host Bus Adapters Adapter PCI PCI PCI IRQ NVM LSI Logic

Bus Device Function Control

<53C875 60 01 01> 0 Yes Enabled

Press the [Enter] key. This displays the Adapter Properties screen containing the controller (HBA) settings; refer to the following example:

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Adapter Properties

Adapter PCI PCI PCI

53C875 60 01 01

Step 5. Use the arrow keys to highlight the Device Properties option, and press

the [Enter] key. This displays the Device Properties screen; refer to the following example:

Device Properties

Bus Device Function

SCSI Device Identifier MB/Sec MT/Sec Data Scan Scan ID Width ID LUNs > 0

To change the bus width of the required device, use the arrow keys to highlight the corresponding option under the Data Width column, and then use the plus (+) or minus (-) keys to change the values.

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NOTE As stated earlier, HP recommends you to always use the A6829A’s

maximum bus width (16 bits), unless you have Narrow (8-bit) devices on the bus and you are experiencing problems with the connection.

If you decrease the maximum bus width value (16 bits) when the transfer rate (MT/sec) is set to 80 or 160, the following message is displayed:

Data Width cannot be set to narrow when MT/Sec is set to 80 or 160. Press any key to continue.

If you want to decrease the maximum bus width value of a particular device, ﬁrst set the transfer rate (MT/sec) to a lower value, and then decrease the corresponding bus width value.

Step 6. After making the necessary changes, press the [ESC] key to exit the

Device Properties screen. This takes you back to the Adapter Properties screen.

Step 7. Press the [ESC] key to exit the Adapter Properties screen.

If you did not modify any of the SCSI parameters, then the Global Properties screen appears.

However, if you modiﬁed any of the SCSI parameters, then the following screen appears:

Adapter and/or device property changes have been made.

<Cancel Exit> <Save changes then exit this menu> <Discard changes then exit this menu> Exit the Configuration Utility

Use the arrow keys to highlight your selection from the listed choices, and then press the [ENTER] key to return to the Global Properties screen.

Step 8. Press the [ESC] key. This displays the following screen:

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Are you sure you want to exit?

<Cancel Exit> Save changes then exit this menu Discard changes then exit this menu <Exit the Configuration Utility>

Use the arrow keys to highlight your selection from the listed choices, and then press the [ENTER] key to return to the EFI shell prompt.

Step 9. At the EFI shell prompt, issue the following command to reboot the

system:

reset

NOTE The system reboot is required for the new setting to take effect.

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Setting SCSI Parameters to Default Values

You can set the SCSI parameters, except Auto Termination, for the adapter to their default values through the BCH menus. The steps you follow depend on the type of HP-UX system in which the adapter is installed.

hp servers rp7410, rp8400, and superdome

On hp servers rp7410, rp8400, and superdome, set the SCSI parameters to the default values by performing the following steps:

Step 1. If you are already at the “Main Menu,” type ser (for “Service Menu”); go

to step 2.

If you are not at the “Main Menu,” type main (to return to the “Main Menu”), type ser (for “Service Menu”), and then go to step 2.

Step 2. In the “Service Menu,” type the following command:

scsi

path

default

where, the

Step 3. Type main to get back to the “Main Menu.”

All Other Servers

On all servers other than hp servers rp7410, rp8400, and superdome, set the SCSI parameters to the default values by following the steps for specifying each SCSI parameter (described earlier in this section).

You will need to know the default value—and how to specify it—for each SCSI parameter. To know the valid SCSI parameter values, HP recommends you to use the online help for the scsi command (type

help scsi when you are in the BCH “Service Menu”).

path

is the HBA’s path. This sets all of the SCSI parameters for

path

to their default values.

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Installing the SCSI Driver

On most of the supported HP-UX PA-RISC systems, the SCSI c720 driver is used with some of the SCSI interfaces. This driver is automatically installed as part of the HP-UX 11.0 core OS and the HP-UX 11i base Operating Environment (OE). Therefore, you do not have to install it separately.

However, you must separately install the SCSI c8xx driver, which is used by the A6829A HBA in all the supported HP-UX systems. This driver is available in the latest HP-UX bundle or at http://itrc.hp.com.

TIP You should keep in mind that, although the installation process installs

the c8xx driver, it does not load the c8xx driver into the HP-UX kernel unless it detects one or more SCSI Ultra160 devices installed in the HP-UX system. This is done to prevent the kernel from becoming unnecessarily large.

Therefore, if Ultra160 devices (for example, a SCSI Ultra160 “add-in” adapter [like the A6829A] or core I/O card) are already installed in the HP-UX system, or if you will be installing an Ultra160 add-in adapter later through OLA, you should install the c8xx driver now. If no SCSI Ultra160 devices are in the system, and you do not want to install any Ultra160 add-in adapters later, do not install the c8xx driver at this time.

NOTE You must install all patches before you install the bundle containing the

c8xx driver.

The following is an overview of the steps you need to perform:

Step 1. Issue the swlist command to see which patches are already installed on

the system. You can get any patches you need to install from the HP IT Resource Center (ITRC) at http://itrc.hp.com.

If you do not need to install any patches (other than the c8xx bundle), go to step 3.

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If you need to install one or more patches, go to step 2.

Step 2. Install any necessary patches.

Step 3. Follow the normal procedure to install the appropriate software bundle

for your HP-UX system’s OS or OE.

Step 4. Issue the swlist command to ensure that the necessary patches and the

c8xx driver are present.

Step 5. Check to see if the c8xx driver is loaded in the kernel, by doing one of the

following two things:

• Use SAM, as follows:

1. Select the “Kernel Conﬁguration” icon.

2. Select the “Drivers” icon.

3. In the “Kernel Conﬁguration” screen, check to see if the c8xx driver is in the kernel.

• Issue the following command:

what /stand/vmunix | grep scsi_c8xx.c

Check to see if the c8xx driver is listed.

If the driver is in the kernel, go to the section, “Conﬁguring LUN 0” on page 55.

If the driver is not in the kernel, go to step 6

Step 6. Load the c8xx driver into the kernel through SAM:

a. Select the “Kernel Conﬁguration” icon. b. Select the “Drivers” icon. c. In the “Kernel Conﬁguration” screen, follow the normal steps for

loading the driver into the kernel (and building a new kernel).

NOTE You need to reboot the system after completing these steps.

Once you have conﬁrmed that the c8xx driver is in the kernel, go to section, “Conﬁguring LUN 0” on page 55.

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Conﬁguring LUN 0

For a disk array that is in a multi-host environment, the SCSI standard requires a LUN 0 in certain scenarios:

• If the disk array is connected to the A6829A adapter, and you plan to boot from that array, the disk array must be conﬁgured as LUN 0. Do not conﬁgure the LUN with any LUN security (that is, do not restrict access).

• If the disk array is connected to an A6829A adapter installed in an HP-UX system that is running from a separate boot disk, the disk array must be conﬁgured with LUN 0; otherwise, the ioscan command will not detect all of the LUNs present in the disk array.

Once you have determined that LUN 0—if it is required—is conﬁgured correctly, go to the section, “Verifying Installation” on page 58.

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Adding Multi-Initiator Support

In a multi-initiator conﬁguration, multiple SCSI host bus adapters (HBA) are connected to the same SCSI bus. Multi-initiator is supported for A6829A HBAs having part number A6829A-60101 or higher.

NOTE Multi-initiator is not supported for HP A6829A SCSI HBA with part

number A6829A-60001.

If you need multi-initiator support for an Itanium-based system, follow the steps mentioned in the section, “Multi-Initiator Support for Itanium‚-Based System” on page 57.

If you need multi-initiator support for a PA-RISC based system, follow the steps mentioned in the section, “Multi-Initiator Support for PA-RISC Based System” on page 57.

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Multi-Initiator Support for Itanium-Based System

If you need multi-initiator support for HP A6829A SCSI HBA installed in an Itanium-based system, perform the following steps:

Step 1. Ensure that the part number of the HBA is A6829A-60101.

Step 2. Install the driver patch, PHKL_28566.

Multi-Initiator Support for PA-RISC Based System

If you need multi-initiator support for HP A6829A SCSI HBA installed in a PA-RISC based system, perform the following steps:

Step 1. Ensure that the part number of the HBA is A6829A-60101.

Step 2. Install the appropriate driver patch. Refer to Table 2-5 for information

on the patch you need to install on your system.

Table 2-5 Mapping of System Version to Driver Patch

System Version Driver Patch

HP-UX 11.0 PHKL_27555

HP-UX 11i PHKL_27556

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After installing the adapter and the c8xx driver and attaching the peripheral devices, verify that all of the components are working by performing the following steps:

Step 1. To verify that the adapter is correctly installed, issue the following

command:

ioscan -fnk

The applicable lines in the ioscan output can have the following form:

ext_bus 0 0/0/10/0/0 c8xx CLAIMED INTERFACE SCSI C1010 Ultra160 Wide LVD A6829-60101 ext_bus 0 0/0/10/0/1 c8xx CLAIMED INTERFACE SCSI C1010 Ultra160 Wide LVD A6829-60101

The third column shows the hardware path of the PCI device/function (shown in bold in the above example, for highlighting purposes). The A6829A supports two PCI devices/functions (one per channel). In addition, since this is a dual channel HBA, two lines are listed—one for channel A of the adapter (denoted by a 0 as the last digit in the hardware path), and one for channel B (denoted by a 1 as the last digit).

Step 2. In the same lines of the ioscan output, verify that the adapter is claimed

by the SCSI c8xx driver, by looking at the ﬁfth column of information (shown in bold in the example below, for highlighting purposes):

ext_bus 0 0/0/10/0/0 c8xx CLAIMED INTERFACE SCSI C1010 Ultra160 Wide LVD A6829-60101 ext_bus 0 0/0/10/0/1 c8xx CLAIMED INTERFACE SCSI C1010 Ultra160 Wide LVD A6829-60101

If the adapter is not claimed, see “If the A6829A Adapter is Not Claimed” on page 88.

Step 3. Still in the same lines of the ioscan output, verify that the SCSI driver

and adapter information are displayed (they are shown in bold in the example below, for highlighting purposes):

ext_bus 0 0/0/10/0/0 c8xx CLAIMED INTERFACE SCSI C1010 Ultra160 Wide LVD A6829-60101 ext_bus 0 0/0/10/0/1 c8xx CLAIMED INTERFACE SCSI C1010 Ultra160 Wide LVD A6829-60101

In this example, the SCSI driver information is c8xx (the name of the driver), and the adapter information is as follows:

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• SCSI C1010—The type of HBA (SCSI) and the type of Ultra160 controller (C1010).

• Ultra160—The HBA’s maximum data transfer rate. This can be Ultra160, Ultra2, Ultra, Fast, or Async. You should keep the following in mind:

— This is not the actual transfer rate, but the maximum transfer

— This is either the ﬁrmware default or the rate set through the

• Wide—The HBA’s bus width. This can be Wide or Narrow.

• LVD—The HBA’s bus type. This can be LVD or Single-Ended. If no bus type is shown, then the SCSI channel is disabled.

• A6829-60101—The HBA’s HP part number.

Step 4. In addition, in the ioscan output, the ctl lines show the adapter’s SCSI

ID in its hardware path (shown in bold in the example below, for highlighting purposes):

rate set for the HBA.

BCH menus, unless you attach an SE device, which causes the entire bus to change to a transfer rate of Ultra (see “Performance Tuning” on page 13).

ctl 0 0/0/10/0/0.7.0 sctl CLAIMED DEVICE Initiator

/dev/rscsi/c0t7d0

ctl 1 0/0/10/0/1.7.0 sctl CLAIMED DEVICE Initiator

/dev/rscsi/c1t7d0

Step 5. Verify that the devices you attached to the adapter are present in the

ioscan output. For example, a partial list may look like this:

disk 10 0/0/1/0/1.0.0 sdisk CLAIMED DEVICE SEAGATE ST39103LC

/dev/dsk/c1t0d0 /dev/rdsk/c1t0d0

disk 11 0/0/1/0/1.2.0 sdisk CLAIMED DEVICE SEAGATE ST39103LC

/dev/dsk/c1t2d0 /dev/rdsk/c1t2d0

disk 45 0/2/1/0/1.8.0 sdisk CLAIMED DEVICE HP 18.2GST318404LC

/dev/dsk/c9t8d0 /dev/rdsk/c9t8d0

disk 46 0/2/1/0/1.10.0 sdisk CLAIMED DEVICE HP 18.2GST318404LC

/dev/dsk/c9t10d0 /dev/rdsk/c9t10d0

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The second line under each disk line shows the disk’s device ﬁles (/dev/... [shown in bold in the example above, for highlighting purposes]).

TIP When the system boots after installation, the insf command creates the

proper device ﬁles for the “ctl” interfaces (which are usually adapters) and the SCSI devices attached to the A6829A adapter. Sometimes, though, it does not create all of the needed device ﬁles.

One situation when this happens is when you attach SCSI disks to the adapter after the system boots and the adapter is already installed in the system.

In the ioscan output, if you see a SCSI device listed without the second line, that means you are missing that device’s device ﬁles. To ﬁx the problem, issue the insf -e command, which creates all of the device ﬁles.

For more information about the ioscan command, see the ioscan(1M) man page.

Refer to your system documentation for information about verifying system operation.

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Installing the A6829A Adapter

Using the EFI Flash Utility

If you are installing the A6829A SCSI HBA in an Itanium-based system, use the Extended Firmware Interface (EFI) ﬂash utility to verify the ﬁrmware version, or to ﬂash and save ﬁrmware images onto the A6829A HBA.

The EFI ﬂash utility is supported on HP A6829A SCSI HBA, which is based on the 53C1010 LSI Logic SCSI chip.

Features

The features of the EFI ﬂash utility are as follows:

• Supports HBA selection for updating the SCSI parameters.

• Displays the ﬁrmware version on an HBA or in a ﬁrmware image ﬁle.

• Supports a menu driven mode.

• Allows you to ﬂash the EFI option ROM images.

Description

This utility allows you to update the HBA ﬂash memory with the LSI Logic EFI driver. New versions of these images are released periodically. Your HBA must have a ﬂash memory to use this utility.

WARNING Do not attempt to use this utility to ﬂash any binaries other than

the EFI option ROM images.

The executable ﬁle name of the EFI utility is EFI8XXFL.EFI. This ﬁle, and any ﬁrmware image ﬁles you need, must be stored on a diskette or CD-ROM. These ﬁles must not be stored on a hard disk, because if the ﬂash fails, there is no way to recover these ﬁles. Moreover, the hard disk may not be accessible.

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Using the EFI Flash Utility

The EFI utility should be executed from a diskette or CD-ROM. For EFI based systems without a ﬂoppy diskette drive, burning the EFI utility and other ﬁrmware images onto a CD-ROM allows proper execution, but with reduced functionality. In such a situation, you will not be able to save an image of the ﬂash memory to the CD-ROM.

Preparation

While booting the EFI enabled systems, the diskette or CD-ROM containing the EFI utility needs to be in the drive to allow device mapping. The EFI utility and ﬁrmware image ﬁles are located in the root directory or in a subdirectory on the diskette or CD-ROM.

Boot the system to the EFI shell prompt. The ﬂoppy diskette drive or CD-ROM drive should appear in the list of mapped devices as fs0.

In systems with a ﬂoppy drive, type fs0 at the EFI shell prompt to change to this device.

Menu Driven Mode

If the EFI utility and ﬁrmware image ﬁles are located in the root directory, enter the efi8xxfl command at the prompt as illustrated below; otherwise, move to the directory in which these ﬁles are located and continue.

fs0:\> efi8xxfl

The following main window screen appears:

Vendor Device

Choice ID ID Seg Bus Dev Func Flash Part

------- -------- -------- ------- ------ ------ ------- ------------

1 0x1000 0x021 0x00 0x15 0x01 0x00 M29F010B

LSI Logic, Inc. SYMC1010 Ultra160 66Mhz SCSI

2 0x1000 0x021 0x00 0x15 0x01 0x01 M29F010B

LSI Logic, Inc. SYMC1010 Ultra160 66Mhz SCSI

3 0x1000 0x021 0x00 0x3F 0x01 0x00 Am29F010

LSI Logic, Inc. SYMC1010 Ultra160 66Mhz SCSI

4 0x1000 0x021 0x00 0x3F 0x01 0x01 Am29F010

LSI Logic, Inc. SYMC1010 Ultra160 66Mhz SCSI

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5 0x1000 0x021 0x01 0x16 0x01 0x00 Am29F010

LSI Logic, Inc. SYMC1010 Ultra160 66Mhz SCSI

6 - Refresh

Which chip/adapter (0 to quit)?

The main window allows you to choose the SCSI chip corresponding to the path where you want to perform the selected tasks. Dual channel cards display two entries (one for each SCSI chip) on this screen.

In the aforementioned example, the system has three HBAs - one each on the 0x15, 0x3F, and 0x16 buses. The HBA on bus 0x3F is a dual-channel HBA (func 0x00 and func 0x01) with ﬂash memory part number Am29F010. Since both the channels of a dual channel board share the same ﬂash memory, only one of the paths needs to be chosen. If separate updates are performed through both the paths, the ﬂash memory is not affected.

NOTE Each update overwrites the existing contents of the ﬂash memory.

The segment value of the HBA corresponding to Choice number 5 is 0x01. This indicates that the HBA resides on PCI segment 1. The other HBAs reside on PCI segment 0, as the segment value for other HBAs is 0x00.

The SYMC1010 following LSI Logic, Inc. indicates that the HBAs use the 53C1010 LSI SCSI chip, which is supported by this EFI utility.

If a device does not contain an LSI Logic SCSI chip supported by the EFI utility, the lines listing the chip numbers do not appear in the display. The HP A6829A SCSI HBA is based on the LSI Logic 53C1010 SCSI chip.

At the Which chip/adapter (0 to quit)? prompt, enter the number under Choice that corresponds to the SCSI chip associated with the ﬂash memory you want to update. Refer to the following example where chip 1 is selected:

Which chip/adapter (0 to quit)? 1

The following menu is displayed:

Chapter 264

Installing the A6829A Adapter

Using the EFI Flash Utility

LSI Logic Corporation EFI 53C8xx/53C1010 FLASH Utility. EFI8XXFL-1.00.00.00 (05.05.2003)

a - Identify Flash Image b - Download New Flash Image c - Upload Current Flash Image to a File d - Erase Entire Flash Part

MISC

z - Change Current PCI chip/adapter q - Quit

Selection:

In the preceding menu, the banner at the top of the option menu displays the version of the EFI update utility and the release date.

The details on each of the menu choices are as follows: a Identify Flash Image: Displays the version number of the image in

the ﬂash memory associated with the currently selected chip or the image contained in the ﬁrmware image ﬁle.

b Download New Flash Image: Overwrites the ﬂash memory associated with the currently selected chip with a new ﬁrmware image ﬁle. This menu choice prompts you for a ﬁle name.

NOTE The EFI utility does not ﬂash an image that exceeds the capacity of the

ﬂash memory on the selected HBA. Instead, a warning message is displayed.

c Upload Current Flash Image to a File: Saves the image from the ﬂash memory associated with the currently selected chip to a ﬁle. This menu choice prompts you for a ﬁle name.

d Erase Entire Flash Part: Erases the entire ﬂash memory associated with the currently selected chip. Once the ﬂash memory is erased, you must download a new Flash image (select option [b]) before the HBA is able to function in the boot sequence.

When the EFI utility ﬂashes an adapter, the following message is displayed:

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Updating the adapter at: PCI seg 0x00, bus 0x3F, dev 0x01, func 0x00

Updating VPD of NVM with new image version...........

Begin erase cycle... Erase complete.

Chapter 266

3 Troubleshooting

The A6829A adapter is a single ﬁeld-replaceable unit (FRU) and does not contain any ﬁeld-serviceable parts. Troubleshooting procedures described in this chapter are limited to verifying that the adapter is operational and that a valid connection is established.

Chapter 3 67

Troubleshooting

This chapter contains the following sections that describe how to troubleshoot the A6829A adapter:

• “General Procedure” on page 69.

• “NVRAM SCSI Parameters Do Not Match” on page 70.

• “Creating Missing Device Files” on page 71.

• “If the A6829A Adapter is Not Claimed” on page 72.

• “Setting and Conﬁrming SCSI Parameters” on page 74.

• “Domain Validation” on page 84.

• “Using Support Tools Manager (STM)” on page 89.

• “Contacting Your Hewlett-Packard Representative” on page 90.

Chapter 368

General Procedure

In general, follow these steps to troubleshoot the A6829A adapter:

Step 1. Check the connection.

Make sure the correct cable is used, connected, and operating properly and that none of the connectors have any bent pins. If you do not ﬁnd any problems with the connection, go to step 2.

Step 2. Check SCSI bus compatibility.

Use the commands in the BCH menus to ensure that the data transfer rates of the A6829A adapter and the attached devices are compatible (see “Setting and Conﬁrming SCSI Parameters” on page 74). If the transfer rates of the adapter and attached devices are compatible, go to step 3.

Step 3. Check the adapter.

Inspect the adapter to make sure it is seated properly in the PCI slot. If necessary, power down the system, reseat the adapter, and restart the system.

Troubleshooting

General Procedure

If a visual inspection of the adapter and cable does not reveal any problems, or if an action taken as a result of the inspection does not produce a working adapter, go to step 4.

Step 4. Run the Support Tools Manager (STM) diagnostics application (see

“Using Support Tools Manager (STM)” on page 89).

If diagnostics determine that the adapter is defective, you must replace it. Contact your local Hewlett-Packard customer representative or call the Hewlett-Packard Response Center.

Chapter 3 69

Troubleshooting

NVRAM SCSI Parameters Do Not Match

On hp servers rp7410, rp8400, and superdome only, you might see the following message after you have installed the A6829A adapter (it would be displayed at the BCH “Main Menu”):

ERROR: PDH NVRAM and I/O card NVRAM SCSI parameters

do not match for path Search aborted. The SCSI parameters for this card must be corrected from the BCH Service menu.

To correct this problem, follow these steps:

Step 1. If already at the “Main Menu,” type ser (for “Service Menu”); go to step

If not already at the “Main Menu,” type main (to return to the “Main Menu”), type ser (for “Service Menu”), then go to step 2.

Step 2. In the “Service Menu,” type the following command:

hw_path

scsi

path

default

where

This sets all of the SCSI parameters for the which will correct the unmatching SCSI parameters.

Step 3. Type main to get back to the “Main Menu.”

path

is the HBA’s path (the

hw_path

in the error message).

path

to their default values,

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Troubleshooting

Creating Missing Device Files

When the system boots after installation, the insf command creates the proper device ﬁles for the “ctl” interfaces (which are usually adapters) and the SCSI devices attached to the A6829A adapter. Sometimes, though, it does not create all of the needed device ﬁles. (One situation where this happens is when you attach SCSI disks to the adapter after the system boots [and the adapter is already installed in the system].) The following is an example of what the output of the ioscan command might look like when you issue it to verify the A6829A installation (see “Verifying Installation” on page 74):

disk 10 0/0/1/0/1.0.0 sdisk CLAIMED DEVICE SEAGATE ST39103LC

/dev/dsk/c1t0d0 /dev/rdsk/c1t0d0

disk 11 0/0/1/0/1.2.0 sdisk CLAIMED DEVICE SEAGATE ST39103LC

/dev/dsk/c1t2d0 /dev/rdsk/c1t2d0

disk 45 0/2/1/0/1.8.0 sdisk CLAIMED DEVICE HP 18.2GST318404LC

/dev/dsk/c9t8d0 /dev/rdsk/c9t8d0

disk 46 0/2/1/0/1.10.0 sdisk CLAIMED DEVICE HP 18.2GST318404LC

/dev/dsk/c9t10d0 /dev/rdsk/c9t10d0

In the ioscan output above, the second line shows the disks’ device ﬁles (/dev/... [shown in bold in the example above, for highlighting purposes]). If you see a disk (or other SCSI devices) listed without the second line, that means you are missing that device’s device ﬁles. To ﬁx the problem, issue the insf -e command, which creates all of the device ﬁles.

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Troubleshooting

If the A6829A Adapter is Not Claimed

If the A6829A adapter is not claimed (it shows as “UNCLAIMED” in the output from the ioscan command), the most likely reason is that you installed the c8xx driver but did not install the required patches.

To ﬁx this problem, follow these steps:

Step 1. Conﬁrm that the c8xx driver has not claimed the A6829A adapter, by

issuing this command:

ioscan -f

The applicable lines (one for each channel of the HBA) in the ioscan output could look like this:

unknown -1 0/0/10/0/0 UNCLAIMED UNKNOWN PCI SCSI (10000021) unknown -1 0/0/10/0/1 UNCLAIMED UNKNOWN PCI SCSI (10000021)

In the example above, the pieces of information that are abnormal—indicating an unclaimed adapter—are shown in bold, for highlighting purposes. (To see what “normal” output could look like, see “Verifying Installation” on page 74 or step 6 below.)

Step 2. Check to see if the c8xx driver is loaded in the kernel, by doing one of

these two things:

• Use SAM, as follows:

1. Select the “Kernel Conﬁguration” icon.

2. Select the “Drivers” icon.

3. On the “Kernel Conﬁguration” screen, check to see if the c8xx driver is in the kernel.

• Issue this command:

what /stand/vmunix | grep scsi_c8xx.c

Check to see if the c8xx driver is listed.

If the driver is in the kernel but the A6829A adapter is still not claimed, go to step 4.

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Troubleshooting

If the A6829A Adapter is Not Claimed

If the driver is not in the kernel, go to step 3.

Step 3. Load the c8xx driver into the kernel, through SAM:

a. Select the “Kernel Conﬁguration” icon. b. Select the “Drivers” icon. c. In the “Kernel Conﬁguration” screen, follow the normal steps for

loading the driver into the kernel (and building a new kernel).

Note that you will need to reboot the system as part of these steps.

Step 4. If the c8xx driver is in the kernel but the A6829A adapter is still not

claimed, check the /var/adm/syslog.log ﬁle for errors like these:

Jan 11 16:08:00 svt38 vmunix: SCSI: SIOP RAM address out of range Jan 11 16:12:05 svt38 vmunix: init of hardware not successful. id=10000021 and my_isc=24

If you see errors like these, you must install the patches required for the c8xx driver. You can ﬁnd information about the patches you need to install in these places: (1) the README ﬁle for the March 2002 (and later) HWE1100 patch bundle (for HP-UX 11.0), and (2) the March 2002 (and later) HP-UX 11i Release Notes (for HP-UX 11i).

Step 5. Follow the normal procedure to install the required patches.

Note that you will need to reboot the system as part of these steps.

Step 6. After the system reboots, verify that the adapter is now claimed, by

issuing this command:

ioscan -fnk

The applicable lines in the ioscan output could look like this:

ext_bus 0 0/0/10/0/0 c8xx CLAIMED INTERFACE SCSI C1010 Ultra160 Wide LVD A6829-60001 ext_bus 0 0/0/10/0/1 c8xx CLAIMED INTERFACE SCSI C1010 Ultra160 Wide LVD A6829-60001

In the example above, the pieces of information that are normal—indicating a claimed adapter—are shown in bold, for highlighting purposes.

If the A6829A adapter is claimed, you have ﬁxed the problem.

If the adapter is still not claimed, repeat steps 2 through 6, as needed.

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Troubleshooting

Setting and Conﬁrming SCSI Parameters

You can ensure compatibility between the SCSI controller and SCSI devices using the commands available for setting and displaying the appropriate SCSI bus parameters, including SCSI IDs.

The procedure varies depending on which system the HP A6829A host bus adapter is installed in.

For HP A6829A HBAs installed in PA-RISC based systems, see “Setting and Conﬁrming SCSI Parameters for HP A6829A Host Bus Adapters Installed in PA-RISC Based Systems” on page 75.

For HP A6829A HBAs installed in Itanium-based systems, see “Setting and Conﬁrming SCSI Parameters for HP A6829A Host Bus Adapter Installed in Itanium‚-Based Systems” on page 80.

Chapter 374

Troubleshooting

Setting and Conﬁrming SCSI Parameters

Setting and Conﬁrming SCSI Parameters for HP A6829A Host Bus Adapters Installed in PA-RISC Based Systems

If the HP A6829A SCSI host bus adapter is installed in a supported PA-RISC based system, use the SCSI command to display and select SCSI parameters.

The SCSI command is available from the boot menu displayed after the test station has booted (if autoboot is disabled). In the following illustration of the boot menu display, the SCSI command is emphasized with bold type:

Command Description

------- ----------AUto [BOot|SEArch ON|OFF] Display or set the specified flag BOot [PRI|ALT|<path> <args>] Boot from a specified path BootTimer [time] Display or set boot delay time CLEARPIM Clear PIM storage CPUconfig [<proc>] [ON|OFF] Configure/Deconfigure Processor DEfault Set the sytem to defined values DIsplay Display this menu ForthMode Switch to the Forth OBP interface IO List the I/O devices in the system LS [<path>|flash] List the boot or flash volume OS [hpux|sppux] Display/Select Operating System PASSword Set the Forth password PAth [PRI|ALT|CON] [<path>] Display or modify a path PDT [CLEAR|DEBUG] Display/clear Non-Volatile PDT state PIM_info [cpu#] [HPMC|TOC|LPMC] Display PIM of current or any CPU RESET [hard|debug] Force a reset of the system RESTrict [ON|OFF] Display/Select restricted access to Forth

SCSI [INIT|RATE] [bus slot val] List/Set SCSI controller parms

SEArch [<path>] Search for boot devices SECure [ON|OFF] Display or set secure boot mode TIme [cn:yr:mo:dy:hr:mn[:ss]] Display or set the real-time clock VErsion Display the firmware versions

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Troubleshooting

Setting and Conﬁrming SCSI Parameters

The SCSI Command

The SCSI command can be used to display and set SCSI bus parameters to ensure that the SCSI adapter is compatible with the SCSI devices.

Displaying Transfer Rates

To display the SCSI transfer rate for an adapter using the SCSI command, use the following syntax:

SCSI rate

bus_number slot_number

where

bus_number

Speciﬁes the number of the bus on which the adapter is installed.

slot_number

Speciﬁes the number of the slot the adapter is in.

For example:

• To display the SCSI transfer rate for an adapter installed on bus 5 slot 2, issue the following command:

SCSI rate 5 2

The command displays the following output:

PCI device /5.2 = no limit

• To list transfer rates for all the bus and slot numbers, issue the following command:

SCSI rate

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Troubleshooting

Setting and Conﬁrming SCSI Parameters

Setting Transfer Rates

To set the SCSI transfer rate for an adapter using the SCSI command, use the following syntax:

SCSI rate

bus_number slot_number rate

where

bus_number

Speciﬁes the number of the bus on which the adapter is installed.

slot_number

rate

Speciﬁes the number of the slot the adapter is in. Speciﬁes the adapter’s transfer rate:

• 0 (no limit)

• 10 (Fast SCSI)

• 20 (Ultra SCSI)

For example, to set the SCSI transfer rate for an adapter installed on bus 5 slot 2 to Fast SCSI, issue the following command:

SCSI rate5210

To display the result, isssue the following command:

SCSI rate 5 2

The output is as follows:

PCI device /5.2 = fast SCSI

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Troubleshooting

Setting and Conﬁrming SCSI Parameters

Displaying SCSI IDs

To display the initiator SCSI IDs for an adapter using the SCSI command, use the following syntax:

SCSI init

bus_number slot_number

where

bus_number

Speciﬁes the number of the bus on which the adapter is installed.

slot_number

Speciﬁes the number of the slot the adapter is in.

For example:

• To display the SCSI ID for an adapter on bus 5 slot 2, issue the following command:

SCSI init 5 2

The command displays the following output:

PCI device /5.2 = 7

• To list the SCSI IDs for all the bus and slot numbers, issue the following command:

SCSI init

Chapter 378

Troubleshooting

Setting and Conﬁrming SCSI Parameters

Setting SCSI ID

To set the initiator SCSI ID for an adapter using the SCSI command, use the following syntax:

SCSI init

bus_number slot_number ID_number

where

bus_number

Speciﬁes the number of the bus on which the adapter is installed.

slot_number

ID_num

Speciﬁes the number of the slot the adapter is in. Speciﬁes the adapter’s SCSI ID number.

For example, to set the SCSI ID for an adapter installed on bus 5 slot 2 to 6, issue the following command:

SCSI init526

To display the result, issue the following command:

SCSI init 5 2

The output is as follows:

PCI device /5.2 = 6

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Troubleshooting

Setting and Conﬁrming SCSI Parameters

Setting and Conﬁrming SCSI Parameters for HP A6829A Host Bus Adapter Installed in Itanium-Based Systems

If the HP A6829A SCSI host bus adapter (HBA) is installed in a supported Itanium-based system, use the following procedure to display and select SCSI parameters:

Step 1. At the EFI Shell prompt, issue the drivers command as illustrated in

the following example:

Shell> drivers

Step 2. Find the driver handle designation <drvr_handle>.

For the A6829A HBA, the <drvr_ handle> designation will be in the DRV column that corresponds to the LSI Logic Ultra160 SCSI Driver listing in the DRIVER NAME column.

In the preceding example, there are two versions of the LSI Logic Ultra160 SCSI Driver. The <drvr_handle> designations that correspond to the two LSI Logic Ultra SCSI Drivers are 20 and 21.

Chapter 380

Setting and Conﬁrming SCSI Parameters

Step 3. Find the controller handle designation, <cntrl_handle>.

At the EFI Shell prompt, issue the drvcfg command as illustrated in the following example:

Shell> drvcfg Configurable Components

Troubleshooting

From the output of the drvcfg command, look for the line(s) where the NN in Drv[NN]is same as the <drvr_handle> for the driver(s) you are using.

Step 4. Once the driver handle and the controller handle are identiﬁed, the SCSI

parameters can be displayed and set for any driver and corresponding controller (HBA) on the SCSI bus.

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Troubleshooting

Setting and Conﬁrming SCSI Parameters

LSI Logic Host Bus Adapters Adapter PCI PCI PCI IRQ NVM LSI Logic

<53C875 60 01 01> 0 Yes Enabled

Press the [Enter] key. This displays the Adapter Properties screen containing the controller (HBA) settings; refer to the following example:

Adapter Properties

Adapter PCI PCI PCI

53C875 60 01 01

Boot Support [Enabled] SCSI Parity [Yes] Host SCSI ID [ 5] SCSI Bus Scan Order [Low to High (0..Max)] Spinup Delay (Secs) [ 2] Secondary Cluster Server [Yes] Termination Control [Auto]

Bus Device Function Control

Bus Device Function

Use the arrow keys to highlight the different SCSI parameters.

Use the plus (+) and minus (-) keys to change the highlighted SCSI parameter.

NOTE Modify only the Host SCSI ID and the Secondary Cluster Server

parameters, if necessary.

Set the Secondary Cluster Server to Yes if more than one initiator is connected to the SCSI bus.

Do not change the default values of other SCSI parameters listed on the screen.

Chapter 382

Setting and Conﬁrming SCSI Parameters

Step 5. Press the [ESC] key to exit the Adapter Properties screen.

If you did not modify any of the SCSI parameters, then the Global Properties screen appears.

However, if you modiﬁed any of the SCSI parameters, then the following screen appears:

Adapter and/or device property changes have been made.

<Cancel Exit> <Save changes then exit this menu> <Discard changes then exit this menu> Exit the Configuration Utility

Use the arrow keys to highlight your selection from the listed choices, and then press the [ENTER] key to return to the Global Properties screen.

Step 6. Press the [ESC] key. This displays the following screen:

Are you sure you want to exit?

<Cancel Exit> Save changes then exit this menu Discard changes then exit this menu <Exit the Configuration Utility>

Troubleshooting

Use the arrow keys to highlight your selection from the listed choices, and then press the [ENTER] key to return to the EFI shell prompt.

Step 7. At the EFI shell prompt, issue the following command to reboot the

system:

reset

NOTE The system reboot is required for the new setting to take effect.

Chapter 3 83

Troubleshooting

Domain Validation

Domain Validation provides a way to automatically detect, and if necessary, compensate for hardware that is not performing to the optimal level. It does this by reducing the data transfer rate and bus width. This allows you to have data integrity even if data transfers cannot occur at the maximum data transfer rate supported by the HBA. If Domain Validation does reduce the rate and bus width, a message is generated so that you can correct the problem.

Domain Validation is automatically enabled for all SCSI devices on the bus, as long as you have set the HBA’s maximum data transfer rate to its maximum speed (160 MB/s for the A6829A). See “Maximum Data Transfer Rate” on page 45 for more information on setting the HBA’s transfer rate.

TIP If necessary, you can disable Domain Validation—if you want to do

diagnostics, for example—by lowering the transfer rate to less than Ultra160 through the commands in the BCH menus (see “Maximum Data Transfer Rate” on page 45).

Domain Validation runs each time the initiator device and target device negotiate the transfer rate and bus width. A few things that can cause this are as follows:

• A protocol violation or some other exception condition occurs on the SCSI bus.

• A SCSI device is powered on and then I/O occurs to that device.

Things that Domain Validation might detect are as follows:

• Incorrect or improper SCSI bus termination (for example, a missing or bad terminator or an incorrect auto termination setting)

• Incorrect hardware conﬁguration

• Cables with the wrong impedance

• Major cable errors (for example, a broken wire within a cable)

• SCSI device spacing problems

Chapter 384

Troubleshooting

Domain Validation

• Path width errors (for example, a Narrow cable used with a Wide SCSI device)

• Damaged or marginal transceivers

• Excessive cross talk

• Excessive system noise

When Domain Validation determines that communication with the target device is not possible at the maximum data transfer rate supported by the HBA (Ultra160), it writes the following warning message to the /var/adm/syslog.log ﬁle:

SCSI:Ultra160 SCSI Adapter at target improper cabling, or malfunctioning hardware. Verify the hardware at the next opportunity.

target_ID

. Possible causes are improper termination,

hw_path

: fallback occurred for

Later, it “falls back” (lowers the transfer rate and bus width) by one level, according to Table 3-1 below.

Chapter 3 85

Troubleshooting

Domain Validation

Table 3-1 Domain Validation Fallback Levels

Type of SCSI Bus Width

Ultra160 Wide 160

Ultra2 Wide Wide 80

Ultra2 Narrow 40

Ultra Wide Wide 40

Ultra Narrow 20

Fast Wide Wide 20

Fast Narrow 10

Asynchronous Narrow <5

NOTE The number of entries in Table 3-1 above is subject to change. We are

providing it here to give you an example of how the fallback procedure works.

As mentioned earlier, Domain Validation tests are run on all targets on the SCSI bus, even those targets that do not have Ultra160 capabilities. Therefore, the starting point in Table 3-1 depends on the parameters that were negotiated for any particular target. In addition, since a SCSI bus can contain up to 15 targets, different SCSI parameters might be in effect at any one time on the bus (because Domain Validation is running on all of the targets at the same time).

Data Transfer

Rate (MB/s)

If a fallback does occur and you ﬁx the problem with the target hardware, you need to power cycle (power off and then power on) the target hardware and then run ioscan without the -k option (you can specify any other options, though). This restarts Domain Validation for that target and restores the negotiated parameters to the highest possible transfer rate and bus width. Next, look in the /var/adm/syslog.log ﬁle for any new “fallback” warning messages

Chapter 386

HP A6829A User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

About the A6829A Adapter

Features

2 Installing the A6829A Adapter

Overview of Installation Steps

Performance Tuning

Preparing for Installation

Installing the A6829A Adapter

Online Addition and Replacement—HP-UX 11i Only

Planning and Preparation

Critical Resources

Adapter Compatibility

Connecting External SCSI Peripherals

Specifying SCSI Parameters

SCSI IDs

Setting SCSI IDs

Maximum Data Transfer Rate

Setting Maximum Data Transfer Rate for A6829A Host Bus Adapter Installed in PA-RISC Based System

Setting Maximum Data Transfer Rate for A6829A Host Bus Adapter Installed in Itanium-Based System

Auto Termination

Controlling Auto Termination

Bus Width

Setting Bus Width for A6829A Host Bus Adapter Installed in PA-RISC Based System

Setting Bus Width for A6829A Host Bus Adapter Installed in Itanium-Based System

Setting SCSI Parameters to Default Values

hp servers rp7410, rp8400, and superdome

All Other Servers

Installing the SCSI Driver

Adding Multi-Initiator Support

Multi-Initiator Support for Itanium-Based System

Multi-Initiator Support for PA-RISC Based System

Verifying Installation

Using the EFI Flash Utility

Features

Description

Preparation

Menu Driven Mode

3 Troubleshooting

General Procedure

NVRAM SCSI Parameters Do Not Match

Creating Missing Device Files

If the A6829A Adapter is Not Claimed

The SCSI Command

Domain Validation