Sun Microsystems Ultra Enterprise 450 Owner's Manual

Ultra™ Enterprise™450 Server Owner’s Guide

Sun Microsystems Computer Company

A Sun Microsystems, Inc. Business 2550 Garcia Avenue Mountain View, CA 94043 USA 415 960-1300 fax 415 969-9131

Part No.: 805-0429-10 Revision A, July 1997

This product or document is protected by copyright and distributed under licenses restricting its use, copying, distribution, and decompilation. No part of this product or document may be reproduced in any form by any means without prior written authorization of Sun and its licensors, if any . Third-party software, including font technology, is copyrighted and licensed from Sun suppliers.

Parts of the product may be derived from Berkeley BSD systems, licensed from the University of California. UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open Company , Ltd.

Sun, Sun Microsystems, the Sun logo, AnswerBook, SunDocs, Solaris, OpenBoot, OpenWindows, Solstice AdminSuite, Solstice Backup, Solstice DiskSuite, Solstice SyMON, SunSwift, SunVTS,Ultra Enterprise, and Ultra are trademarks or registered trademarks of Sun Microsystems, Inc. in the United States and in other countries. All SP ARC trademarks are used under license and are trademarks or register ed trademarks of SP ARC International, Inc. in the United States and in other countries. Products bearing SP ARC trademarks ar e based upon an architecture developed by Sun Microsystems, Inc.

The OPEN LOOK and Sun™ Graphical User Interface was developed by Sun Microsystems, Inc. for its users and licensees. Sun acknowledges the pioneering efforts of Xerox in researching and developing the concept of visual or graphical user interfaces for the computer industry. Sun holds a non-exclusive license from Xerox to the Xerox Graphical User Interface, which license also covers Sun’s licensees who implement OPEN LOOK GUIs and otherwise comply with Sun’s written license agreements.

RESTRICTED RIGHTS: Use, duplication, or disclosure by the U.S. Government is subject to r estrictions of F AR 52.227-14(g)(2)(6/87) and FAR 52.227-19(6/87), or DFAR 252.227-7015(b)(6/95) and DFAR 227.7202-3(a).

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Des parties de ce produit pourront être dérivées des systèmes Berkeley BSD licenciés par l’Université de Californie. UNIX est une marque déposée aux Etats-Unis et dans d’autres pays et licenciée exclusivement par X/Open Company , Ltd.

Sun, Sun Microsystems, le logo Sun, AnswerBook, SunDocs, Solaris, OpenBoot, OpenWindows, Solstice AdminSuite, Solstice Backup, Solstice DiskSuite, Solstice SyMON, SunSwift, SunVTS, Ultra Enterprise, et Ultra sont des marques déposées ou enregistrées de Sun Microsystems, Inc. aux Etats-Unis et dans d’autres pays. T outes les marques SPARC, utilisées sous licence, sont des marques déposées ou enregistrées de SPARC International, Inc. aux Etats-Unis et dans d’autres pays. Les produits portant les marques SP ARC sont basés sur une ar chitecture développée par Sun Microsystems, Inc.

L’interface d’utilisation graphique OPEN LOOK et Sun™ a été développée par Sun Micr osystems, Inc. pour ses utilisateurs et licenciés. Sun reconnaît les efforts de pionniers de Xerox pour la recher che et le développement du concept des interfaces d’utilisation visuelle ou graphique pour l’industrie de l’informatique. Sun détient une licence non exclusive de Xerox sur l’interface d’utilisation graphique Xerox, cette licence couvrant également les licenciés de Sun qui mettent en place l’interface d’utilisation graphique OPEN LOOK et qui en outre se conforment aux licences écrites de Sun.

CETTE PUBLICATION EST FOURNIE "EN L’ETA T" ET AUCUNE GARANTIE, EXPRESSE OU IMPLICITE, N’EST ACCORDEE, Y COMPRIS DES GARANTIES CONCERNANT LA V ALEUR MARCHANDE, L’APTITUDE DE LA PUBLICATION A REPONDRE A UNE UTILISA TION PARTICULIERE, OU LE FAIT QU’ELLE NE SOIT PAS CONTREFAISANTE DE PRODUIT DE TIERS. CE DENI DE GARANTIE NE S’APPLIQUERAIT PAS, DANS LA MESURE OU IL SERAIT TENU JURIDIQUEMENT NUL ET NON AVENU.

Please Recycle

Regulatory Compliance Statements

Your Sun product is marked to indicate its compliance class:

• Federal Communications Commission (FCC) — USA

• Department of Communications (DOC) — Canada

• Voluntary Control Council for Interference (VCCI) — Japan

Please read the appropriate section that corresponds to the marking on your Sun product before attempting to install the product.

For important safety precautions to follow when installing or servicing this system, please see “Safety Precautions” on page 427.

FCC Class A Notice

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference.

2. This device must accept any interference received, including interference that may cause undesired operation. Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC

Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

Shielded Cables: Connections between the workstation and peripherals must be made using shielded cables in order to maintain compliance with FCC radio frequency emission limits. Networking connections can be made using unshielded twisted-pair (UTP) cables.

Modifications: Any modifications made to this device that are not approved by Sun Microsystems, Inc. may void the authority granted to the user by the FCC to operate this equipment.

FCC Class B Notice

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference.

Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/television technician for help.

Modifications: Any modifications made to this device that are not approved by Sun Microsystems, Inc. may void the authority granted to the user by the FCC to operate this equipment.

Regulatory Compliance Statements iii

DOC Class A Notice - A vis DOC, Classe A

This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

DOC Class B Notice - A vis DOC, Classe B

This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

iv Ultra Enterprise 450 Server Owner’s Guide • July 1997

Declaration of Conformity

Compliance ID: Q36 Product Name: Ultra Enterprise 450, Ultra 450 Creator, and Ultra 450 Creator3D families

EMC

USA – FCC Class B This equipment complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This equipment may not cause harmful interference.

2. This equipment must accept any interference that may cause undesired operation.

European Union

This equipment complies with the following requirements of the EMC Directive 89/336/EEC: EN55022 / CISPR22 (1985) Class B Integrity Design & Test Services, Inc.

Report Nos: 61419.E2, 61233.E3

EN50082-1 IEC801-2 (1991) 8 kV (Direct), 15 kV (Air)

IEC801-3 (1984) 10 V/m, 80% AM at 1KHz IEC801-4 (1988) 4.0 kV Power Lines, 1 kV Signal Lines IEC801-5 2 kV Power Lines (L-L, L-G)

1 kV Signal Lines (L-G, Shield-G)

EN61000-3-2/IEC1000-3-2 (1994) Pass

Safety

This equipment complies with the following requirements of the Low Voltage Directive 73/23/EEC: EC Type Examination Certificates:

EN60950/IEC950 (1993) TUV Rheinland Certificate # S9771525 EN60950 w/ Nordic Deviations CB Scheme Certificate # (pending)

Supplementary Information

This product was tested and complies with all the requirements for the CE Mark.

/S/ Wayne L. Bolivar 4/10/97 /S/ John Shades 4/10/97 Manager, Qualification Engineering Quality Assurance Manager

Sun Microsystems Computer Company Sun Microsystems Limited 4 Omni Way UCHL04-203 Springfield, Linlithgow Chelmsford, MA 01824 USA West Lothian, EH49 7LR Tel: (508) 442-0599 Scotland, United Kingdom Fax: (508) 250-5059 Tel: 1506 670000

Fax: 1506 672323

Regulatory Compliance Statements v

Caution – Before installing internal options in your system, you must verify that the power requirements of the upgraded system do not exceed the maximum current limit for a 15-amp power outlet (North America only). See “How to Determine System Power Requirements” on page 82 for additional information.

vi Ultra Enterprise 450 Server Owner’s Guide • July 1997

Contents

Preface xv

1. System Overview 1

About the Ultra Enterprise 450 Server 2 Locating Front Panel Features 5 Locating Rear Panel Features 7 About the Status and Control Panel 8

2. System Setup 11

About the Parts Shipped to You 12 How to Install the Ultra Enterprise 450 Server 13 How to Install the Rear Panel Security Device 17 About Setting Up a Console 20 How to Attach an Alphanumeric Terminal 21 How to Conﬁgure a Local Graphics Console 23

3. Preparing to Install or Replace Parts 25

How to Power Off the System 26 How to Power On the System 28 How to Initiate a Reconﬁguration Boot 30 How to Remove the Right Side Panel 32

Contents vii

How to Install the Right Side Panel 34 How to Remove the Left Side Panel 36 How to Install the Left Side Panel 38 How to Avoid Electrostatic Discharge 40 Reference for Installation and Service: Tools Required 42

4. Hardware Conﬁguration 43

About Reliability, Availability, and Serviceability Features 44 About Memory 51 About CPU Modules 54 About DC/DC Converters 56 About Peripheral Component Interconnect (PCI) Buses 58 About Internal Disk Drives 61 About Power Supplies 64 About the Standard Ethernet Port 66 About the Serial Ports 67 About the Parallel Port 68 About the Main Logic Board Jumpers 69 About Serial Port Jumpers 71 About the Clock Mode Select Jumper 72 About Flash PROM Jumpers 73 About the SCSI Removable Media Bays and the External SCSI Port 75 About Power Budget Constraints 79 How to Determine System Power Requirements 82

5. Parts Installation and Repair 97

About Handling Boards 100 How to Install the 8-Bay Storage Expansion Option 101 Main Logic Board Components 112

viii Ultra Enterprise 450 Server Owner’s Guide • July 1997

How to Remove the Main Logic Board 113 How to Install the Main Logic Board 116 How to Remove a Memory Module 120 How to Install a Memory Module 123 How to Remove a CPU Module 126 How to Install a CPU Module 128 How to Remove a DC/DC Converter 130 How to Install a DC/DC Converter 132 How to Remove a PCI Card 134 How to Install a PCI Card 136 How to Remove the NVRAM Module 139 How to Install the NVRAM Module 141

Backplanes 143

How to Remove the Power Distribution Board 144 How to Install the Power Distribution Board 151 How to Remove the Removable Media Backplane 157 How to Install the Removable Media Backplane 161 How to Remove the 4-Slot UltraSCSI Backplane 165 How to Install the 4-Slot UltraSCSI Backplane 169 How to Remove an 8-Slot UltraSCSI Backplane 173 How to Install an 8-Slot UltraSCSI Backplane 178

Storage Devices 183

How to Remove a Disk Drive 184 How to Install a Disk Drive 186 How to Remove a CD-ROM Drive or Tape Drive 188 How to Install a CD-ROM Drive or Tape Drive 192 How to Remove the Diskette Drive 196

Contents ix

How to Install the Diskette Drive 200

Miscellaneous Assemblies 202

How to Remove the Removable Media Assembly 203 How to Install the Removable Media Assembly 207 How to Remove the Disk Fan Tray Assembly 210 How to Install the Disk Fan Tray Assembly 212 How to Remove the CPU Fan Tray Assembly 214 How to Install the CPU Fan Tray Assembly 216 How to Remove the Upper Blower Assembly 218 How to Install the Upper Blower Assembly 221 How to Remove a Power Supply 224 How to Install a Power Supply 226 How to Remove the AC Line Filter Assembly 228 How to Install the AC Line Filter Assembly 232 How to Remove the Speaker Assembly 235 How to Install the Speaker Assembly 237 How to Remove the LED Interface Board 239 How to Install the LED Interface Board 242

Internal Cables 244

How to Remove the Disk Fan Tray/Interlock Cable 245 How to Install the Disk Fan Tray/Interlock Cable 248 How to Remove the Removable Media Power Cable 252 How to Install the Removable Media Power Cable 254 How to Remove the Removable Media SCSI Cable 256 How to Install the Removable Media SCSI Cable 259 How to Remove a SCSI Drive Power Cable 262 How to Install a SCSI Drive Power Cable 265

x Ultra Enterprise 450 Server Owner’s Guide • July 1997

How to Remove the SCSI Drive Data Cable 267 How to Install the SCSI Drive Data Cable 270 How to Remove the 4-Slot UltraSCSI Power Cable 274 How to Install the 4-Slot UltraSCSI Power Cable 276 How to Remove the 4-Slot UltraSCSI Data Cable 278 How to Install the 4-Slot UltraSCSI Data Cable 284 How to Remove an 8-Slot UltraSCSI Power Cable 290 How to Install an 8-Slot UltraSCSI Power Cable 292 How to Remove an 8-Slot UltraSCSI Data Cable 294 How to Install an 8-Slot UltraSCSI Data Cable 297 How to Remove the LED Interface Cable 301 How to Install the LED Interface Cable 303 How to Remove the Diskette Power Cable 305 How to Install the Diskette Power Cable 307 How to Remove the Diskette Data Cable 309 How to Install the Diskette Data Cable 311 How to Remove an I2C Cable 313 How to Install an I2C Cable 316 How to Remove the Keyswitch Cable 318 How to Install the Keyswitch Cable 320

6. Administration and Networking 323

About Network Interface Options 324 How to Conﬁgure the Standard Ethernet Interface 325 How to Add an Ethernet Interface 327 How to Attach a Twisted-Pair Ethernet (TPE) Cable 330 How to Attach an MII Ethernet Transceiver 332 How to Boot the System Using the Standard Ethernet Interface 335

Contents xi

How to Boot the System Using a PCI-Based Ethernet Interface 337 How to Select the Boot Device 339 About Disk Array Conﬁgurations and Concepts 341

7. Using Storage Devices 345

How to Prevent Overwriting of a Diskette 346 How to Allow Writing to a Diskette 347 How to Insert a Diskette Into Its Drive 348 How to Remove a Diskette From Its Drive 349 How to Use fdformat to Format a New Diskette 350 How to Use fdformat to Reformat a Used Diskette 351 How to Copy Files To and From a Diskette 353 How to Insert a Compact Disc Into the Drive 354 How to Eject a Compact Disc With Software Commands 356 How to Eject a Compact Disc Manually 358 How to Eject a Compact Disc in an Emergency 360 About the Tape Drive and Tape Cartridges 362 How to Insert a Tape Cartridge 363 How to Remove a Tape Cartridge 364 How to Control the Tape Drive 365 How to Clean the Tape Drive 366 What If Your CD Drive Can’t Read a CD? 367

8. Diagnostics and Troubleshooting 369

About Diagnostic Tools 370 About Power-On Self-Test (POST) Diagnostics 372 How to Use POST Diagnostics 373 About OpenBoot Diagnostics (OBDiag) 375 How to Use OpenBoot Diagnostics (OBDiag) 383

xii Ultra Enterprise 450 Server Owner’s Guide • July 1997

How to Set the Diagnostic Level for POST and OBDiag 386 About SunVTS Software 387 How to Check Whether SunVTS Software Is Installed 389 How to Use SunVTS Software 390 About Solstice SyMON Software 392 About Troubleshooting Your System 393 About Diagnosing Speciﬁc Problems 403

A. Connector Pinouts 413

Reference for the Serial Port A and B Connectors 414 Reference for the Parallel Connector 416 Reference for the SCSI Connector 417 Reference for the Keyboard/Mouse Connector 419 Reference for the Twisted-Pair Ethernet (TPE) Connector 420 Reference for the Media Independent Interface (MII) Ethernet Connector 421 Reference for the 13W3 Video Connector 422

B. System Speciﬁcations 423

Reference for System Speciﬁcations 424

C. Safety Precautions 427

Reference for Safety Precautions 428

D. Illustrated Parts Breakdown 437

Illustrated Parts Breakdown 438

Glossary 457

Index 461

Contents xiii

xiv Ultra Enterprise 450 Server Owner’s Guide • July 1997

Preface

Ultra Enterprise 450 Server Owner’s Guide answers your questions about setting up and running the Ultra™ Enterprise™ 450 server. Features and options, installation, troubleshooting, parts replacement, and network administration information for the Ultra Enterprise 450 server are covered in this manual.

This manual presents information in a modular format designed to answer the type of questions that you might ask while installing, conﬁguring, and using the Ultra Enterprise 450 server. Look at the titles of the modules and you’ll ﬁnd the cue words that direct you to the categories of questions and answers, such as:

■ How to . . . How do I do something?

■ About . . . Is there more information about this topic?

■ Locating . . . Where can I ﬁnd something on the system?

■ What If . . . What if I were to do this, or what if this were to happen?

■ Reference for . . . Where can I ﬁnd reference material for something?

You determine how much or how little of the information you need to r ead. Using the table of contents or the task list on the ﬁrst page of each chapter, you can

quickly ﬁnd a speciﬁc topic or task. The information modules are brief; however, they are interrelated and refer to other modules that you may want to read. For instance, if you’re installing a memory module and you’re already familiar with the task, you could go to “How to Install a Memory Module” and follow the four steps. But if you need more background information before performing the task, you should ﬁrst read “About Memory.”

Preface xv

Using UNIX Commands

This document may not contain information on basic UNIX®commands and procedures such as shutting down the system, booting the system, and conﬁguring devices.

See one or more of the following for this information:

■ Solaris 2.x Handbook for SMCC Peripherals

■ AnswerBook™ online documentation for the Solaris™ 2.x software environment

■ Other software documentation that you received with your system

Shell Prompts

The following table shows the default system prompt and superuser prompt for the C shell, Bourne shell, and Korn shell.

Shell Prompt

C shell machine_name% C shell superuser machine_name# Bourne shell and Korn shell $ Bourne shell and Korn shell

superuser

xvi Ultra Enterprise 450 Server Owner’s Guide • July 1997

Conventions

The following table describes the typographic conventions used in this book.

Typeface or Symbol Meaning Examples

AaBbCc123 The names of commands, ﬁles,

and directories; on-screen computer output.

Edit your .login ﬁle. Use ls -a to list all ﬁles. % You have mail.

AaBbCc123

AaBbCc123 Book titles, new words or

What you type, when contrasted with on-screen computer output.

terms, words to be emphasized. Command-line variable; replace with a real name or value.

Password:

Read Chapter 6 in the User’s Guide. These are called class options. You must be root to do this. To delete a ﬁle, type rm ﬁlename.

The table below provides deﬁnitions of the terms “left” and “right” as used in this book.

Term Meaning

Left The side to your left as you face the front of the system; the side that

contains the system’s main logic board.

Right

The side to your right as you face the front of the system; the side that contains the disk backplanes and power supplies.

Preface xvii

Related Documents

The following documents contain topics that relate to the information in the Ultra Enterprise 450 Server Owner’s Guide.

Application Title

Performing diagnostic tests

System and network administration

Using operating system software

Miscellaneous

SunVTS User’s Guide SunVTS Quick Reference Card SunVTS Test Reference Manual Solstice SyMON User’s Guide Solaris System Administrator AnswerBook SPARC: Installing Solaris Software Solaris User’s Guide Solaris on Sun Hardware AnswerBook Solaris 2.x Handbook for SMCC Peripherals SMCC SPARC Hardware Platform Guide

Cautions

Caution – This equipment contains lethal voltage. Accidental contact can result in

serious injury or death.

Caution – Improper handling by unqualiﬁed personnel can cause serious damage

to this equipment. Unqualiﬁed personnel who tamper with this equipment may be held liable for any resultant damage to the equipment.

xviii Ultra Enterprise 450 Server Owner’s Guide • July 1997

Caution – Use proper electrostatic discharge (ESD) grounding techniques when

handling components. Wear an antistatic wriststrap and use an ESD-protected mat. Store ESD-sensitive components in antistatic bags before placing them on any surface.

Individuals servicing this equipment must observe all safety precautions and ensure compliance with skill level requirements, certiﬁcation, and all applicable local and national laws.

Some procedures in this document must be performed by trained maintenance providers. Only people who have been trained at the Sun Microsystems™ training facilities (or by Sun Microsystems afﬁliates) and have been certiﬁed as required by local and national laws are considered qualiﬁed.

Ordering Sun Documents

SunDocsSM is a distribution program for Sun Microsystems technical documentation. Contact SunExpress for easy ordering and quick delivery of your documentation. You can ﬁnd a listing of available Sun documentation on the World Wide Web.

World Wide Web: http://www.sun.com/sunexpress/ Country Telephone Fax

Belgium 02-720-09-09 02-725-88-50 Canada 1-800-873-7869 1-800-944-0661 France 0800-90-61-57 0800-90-61-58 Germany 01-30-81-61-91 01-30-81-61-92 Holland 06-022-34-45 06-022-34-46 Japan 0120-33-9096 0120-33-9097 Luxembourg 32-2-720-09-09 32-2-725-88-50 Sweden 020-79-57-26 020-79-57-27 Switzerland 0800-55-19-26 0800-55-19-27 United Kingdom 0800-89-88-88 0800-89-88-87 United States 1-800-873-7869 1-800-944-0661

Preface xix

Sun Welcomes Your Comments

Please use the Reader Comment Card that accompanies this document. We are interested in improving our documentation and welcome your comments and suggestions.

If a card is not available, you can email or fax your comments to us. Please include the document part number in the subject line of your message.

■ Email: smcc-docs@sun.com

■ Fax: SMCC Document Feedback, 1-415-786-6443

xx Ultra Enterprise 450 Server Owner’s Guide • July 1997

CHAPTER

System Overview

This chapter introduces you to the Ultra Enterprise 450 server and explains some of its features. Information covered in this chapter includes:

■ About the Ultra Enterprise 450 Server—page 2

■ Locating Front Panel Features—page 5

■ Locating Rear Panel Features—page 7

■ About the Status and Control Panel—page 8

About the Ultra Enterprise 450 Server

The Ultra Enterprise 450 server is a high-performance, shared memory, symmetricmultiprocessing server system. It is designed around Sun’s high-speed Ultra Port Architecture (UPA) cross-bar system interconnect and Sun’s UltraSPARC processors to deliver outstanding overall system performance.

The system is housed in a roll-around tower enclosure which measures 58.1 cm high,

44.8 cm wide, and 69.6 cm deep (22.9 inches x 17.7 inches x 27.4 inches). The system has a maximum weight of 94 Kg (205 lbs).

Processing power is provided by up to four modular UltraSPARC II CPUs, each of which comes with 1 Mbyte or 2 Mbytes of local high-speed external cache memory. The system UPA’s clock rate synchronizes automatically to the clock rate of the installed CPUs, and the UPA bus operates at a clock rate that is one third or one fourth that of the CPU modules. For more information about CPU modules, see “About CPU Modules” on page 54.

System main memory is provided by up to sixteen memory DIMM modules, each of which is capable of storing 16, 32, 64, 128, or 256 Mbytes of data. Total main memory is expandable up to 4 Gigabytes. To enhance memory I/O performance, the system transfers 64 bytes of data into or from memory on each memory transfer. The system also implements up to four-way memory interleaving, which can signiﬁcantly reduce the system’s average memory access time. For more information about system memory and interleaving, see “About Memory” on page 51.

System I/O is handled by six separate Peripheral Component Interconnect (PCI) buses. These industry-standard buses support all main logic board I/O and up to ten PCI interface cards. Three PCI buses operate at 33-MHz clock rates, while the remaining three buses can operate at either 33-MHz or 66-MHz. Individual PCI buses are capable of sustained throughput of 200 Mbytes per second, and together they give the system over 600 Mbytes per second of total I/O throughput. All PCI cards plug into slots provided on the system’s main logic board. For more information about PCI buses, see “About Peripheral Component Interconnect (PCI) Buses” on page 58.

Internal disk storage is provided by up to twenty low proﬁle (1-inch high), 3.5-inch wide, UltraSCSI disk drives. The ﬁrst four drives are supported by a 40-Mbyte per second UltraSCSI interface provided directly on the system’s main logic board. Additional drives can be supported by installing one or two 8-bay storage expansion options. Each option kit provides an 8-slot disk backplane, a dual-channel UltraSCSI PCI adapter card, and all required interconnecting cables. With two 8-bay storage expansion options installed, the system operates ﬁve separate 40-Mbyte per second UltraSCSI buses, each supporting data transfers to and from four internal disks. For more information about disk storage, see “About Internal Disk Drives” on page 61.

2 Ultra Enterprise 450 Server Owner’s Guide • July 1997

External multi-disk storage subsystems and RAID storage arrays can be supported by installing single-channel or multi-channel PCI host adapter cards along with the appropriate system software. Software drivers supporting SCSI and other types of

devices are included in the Solaris

operating environment.

A 1.44-Mbyte, 3.5-inch diskette drive and 12x CD-ROM drive are standard on the Ultra Enterprise 450 server. The CD-ROM drive has multimedia features which include multi-session capability and fast access (12X-speed) for image and video data.

A 5.25-inch half-height (1.6-inch) bay is provided at the front of the system, which may be used to house a narrow SCSI (50-pin) tape drive, such as an 8-mm tape, a 4-mm DDS-2 or DDS-3 tape, or a quarter-inch cassette tape drive.

Up to two external tape devices can be attached to the standard 68-pin Fast/Wide SCSI port provided on the system’s rear panel. Additional external tape devices can be supported with appropriate PCI host adapter cards.

The Ultra Enterprise 450 server can easily be connected to either a 10-Mbps or a 100-Mbps Ethernet by means of an auto-sensing Ethernet interface provided on the system’s main logic board. Additional Ethernet interfaces or connections to other networks, such as FDDI, ATM, or token ring, can be provided by installing the appropriate PCI interface cards. For more information, see “Administration and Networking” on page 323.

The system console device can be either a standard ASCII character terminal or a local windowing subsystem. The ASCII terminal connects to the system’s standard serial port, while a local graphics console requires installation of a PCI frame buffer card, monitor, keyboard, and mouse. System administration can also be performed from a remote workstation connected to the Ethernet.

The Ultra Enterprise 450 server provides two serial communications ports, one synchronous/asynchronous port and one asynchronous-only port, through a single, shared DB-25 connector located on the rear panel. It also provides one external, 2-Mbyte per second, bidirectional, Centronics-compatible, EPP parallel port for connecting the system to a local printer or other compatible parallel device.

Power is provided by one or two 560-watt power supplies. Up to three of these modular units can be installed, providing both N+1 redundancy and full hot swap capability. For more information about the power supplies, see “About Power Supplies” on page 64.

The Ultra Enterprise 450 server can easily be installed in a standard 19-inch rack without any physical reconﬁguration or removal of any panels. An optional rackmounting kit is available for installing the server into any 29- to 34-inch deep EIA 19-inch rack with at least 23 inches of vertical mounting space and sufﬁcient loadbearing capacity. The rack-mounting kit comprises a depth-adjustable, slidemounted tray with retaining brackets. The system is simply placed on the tray and secured into place with the brackets supplied in the kit. Due to the substantial

Chapter 1 System Overview 3

weight of the system, racks must be either bolted to the ﬂoor or equipped with stabilizer legs to prevent the rack from tipping when the system is pulled out for servicing.

System reliability, availability, and serviceability are enhanced by features that include:

■ Error correcting code on memory and all data paths

■ Parity checking on all address buses

■ Front panel status indicator lights

■ Disk drive health indicator lights

■ Hot-pluggable disk drives with easy front access

■ Support for RAID 0, 1, and 5 implementations

■ Thermal sensing and over-temperature protection

■ Power system monitoring and fault protection

■ N+1 power supply redundancy

■ Hot swap power supplies with easy rear access

■ Automatic system recovery

■ Four levels of system diagnostics

■ Easy side access to all internal replaceable components

4 Ultra Enterprise 450 Server Owner’s Guide • July 1997

Locating Front Panel Featur es

The illustration below shows the system features that are accessible from the front panel with the top and bottom doors open.

CD-ROM drive slot

Top door

Bottom door

Tape drive slot

Status and control panel

Diskette drive slot

Internal disk bays

Disk drive LEDs

For more information about front panel controls and indicators, see “About the Status and Control Panel” on page 8.

Access to the system’s internal storage devices is through two hinged doors at the front of the system. The top door provides access to the removable media devices and the status and control panel. All of the front panel status indicators are visible through windows in this door. The bottom door provides access to the system’s internal disk drives and features a key lock for added security.

Chapter 1 System Overview 5

When the key is in the vertical position, the door is unlocked. Make sure that the key is in this position before you close the door. To lock the door, simply turn the key 90 degrees clockwise and remove the key.

6 Ultra Enterprise 450 Server Owner’s Guide • July 1997

Unlocked Locked

Locating Rear Panel Features

The illustration below shows the system features that are accessible from the rear panel.

AC power switch

Parallel port

Keyboard / mouse

TPE Ethernet

MII Ethernet

Power supplies

Power inlet

I 0

Power supply LEDs

SCSI Serial port A/B

PCI slots 1-10

Power supplies and the main AC power switch are accessible from the system rear panel. Each power supply has three LED indicators for displaying power status and fault conditions.

A sturdy rear panel security device prevents unauthorized removal of power supplies, the main logic board, and all main logic board components. For instructions on installing the device, see “How to Install the Rear Panel Security Device” on page 17.

Chapter 1 System Overview 7

About the Status and Control Panel

The status and control panel includes six LED indicators and a security keyswitch. The panel is located at the top right on the front panel of the system, as shown in “Locating Front Panel Features” on page 5.

The LED indicators can be viewed when the top door is open or closed. The keyswitch is only accessible when the top door is open. The following ﬁgure shows the status and control panel with the top door open.

LEDs Keyswitch

The LEDs consist of two types: system health indicators and fault indicators. The system health indicators light to show you that the system is functioning normally. The fault indicators light when a problem is detected in the system. Because it is

8 Ultra Enterprise 450 Server Owner’s Guide • July 1997

important for you to know that a fault exists in the system, the fault indicators remain lit when the system is reset or switched to standby mode using the keyswitch.

When the system is ﬁrst powered on, the LEDs are individually toggled on and off to verify that each one is working correctly. After that, the LEDs operate as described in the following table.

Name Icon Description

Power-on This green LED lights steadily when the system power

is on and the keyswitch is in the On, Diagnostics, or Locked position.

General fault This yellow LED blinks slowly while the system runs its

power-on self-test (POST) diagnostics and blinks rapidly during OpenBoot diagnostics (OBDiag) tests. It lights steadily when any fault is detected (including a fault also reported by any other LED).

Activity This green LED blinks continuously to indicate that the

system is operating normally.

Disk fault This yellow LED lights steadily to indicate a fault in one

of the hard disk drives. When this LED is lit, one or more disk LEDs may also be lit, indicating the source of the fault.

Temperature Fault

This yellow LED lights steadily to indicate an overtemperature condition in the system or a faulty fan assembly.

Power supply fault

This yellow LED lights steadily to indicate a fault in one of the power supplies. When this LED is lit, LEDs on the rear of each power supply will indicate the source of the fault.

Chapter 1 System Overview 9

Before you turn on the main AC power switch on the rear panel, make sure that the front panel keyswitch is in the Standby position; see “How to Power On the System” on page 28. After that, you can use the keyswitch setting to affect the power-on mode of the system. The following table describes the function of each switch setting.

Name Icon Description

Power-On Turns the system power on if the main AC power

switch on the rear panel is also turned on.

Diagnostics Turns the system power on and runs power-on self-test

(POST) and OpenBoot diagnostics (OBDiag).

Turn the switch to this setting when you want to run POST and OBDiag at power-up. For more information on POST and OBDiag, see “About Diagnostic Tools” on page 370.

Locked Turns the system power on and disables the keyboard

Stop-a command and terminal Break key command. This presents users from suspending system operation and accessing the system ok prompt in order to modify OpenBoot conﬁguration parameters stored in the system’s nonvolatile memory.

Standby Places the system in standby mode by turning off

10 Ultra Enterprise 450 Server Owner’s Guide • July 1997

This setting also prevents unauthorized programming of the system ﬂash PROM. For additional details, see “About Flash PROM Jumpers” on page 73.

This is the recommended setting for normal day-to-day operation of the system.

power to all internal system components except for the power supplies and AC line ﬁlter assembly. When the keyswitch is in this position, the keyboard power switch is disabled.

To power off the system completely, use the AC power switch located on the rear panel. See “How to Power Off the System” on page 26.

CHAPTER

System Setup

This chapter explains how to attach all cords and cables needed to get the machine up and running. Where software is involved, this chapter explains some of what you need to do, and points you to the appropriate software manuals for the rest.

Tasks covered in this chapter include:

■ How to Install the Ultra Enterprise 450 Server—page 13

■ How to Install the Rear Panel Security Device—page 17

■ How to Attach an Alphanumeric Terminal —page 21

■ How to Conﬁgure a Local Graphics Console—page 23

Other information covered in this chapter includes:

■ About the Parts Shipped to You —page 12

■ About Setting Up a Console—page 20

About the Parts Shipped to You

Your system is “conﬁgured-to-order,” which means that most internal options that you order are pre-installed at the factory. However, if you ordered options that are not factory-installed (such as a monitor), these will be shipped to you separately.

In addition, you should have received the media and documentation for all appropriate system software (ordered separately). Check that you’ve received everything you ordered.

Note – Inspect all shipping cartons for evidence of physical damage. If a shipping

carton is damaged, request that the carrier's agent be present when the carton is opened. Keep all contents and packing material for the agent's inspection.

Unpacking instructions are printed on the outside of the shipping carton. Save the original shipping containers and packing materials in case you need to

store or ship your system. If you cannot store the shipping materials, recycle or dispose of the materials properly. Consult your local recycling authority for information.

12 Ultra Enterprise 450 Server Owner’s Guide • July 1997

How to Install the Ultra Enterprise 450 Server

Before You Begin

The Ultra Enterprise 450 server is a general-purpose server, which you can use for many types of applications. Exactly how you set up your machine depends in some measure upon what you want it to do.

This procedure is intended to be as “generic” as possible, so as to cover the needs of most sites. Even so, you will need to make certain decisions to complete the procedure:

■ On which network or networks do you intend your machine to operate?

For background information about network support, see “About Network Interface Options” on page 324.

■ How do you want to use/conﬁgure your machine’s internal disk array?

For background information about internal disk array use, see “About Disk Array Conﬁgurations and Concepts” on page 341.

■ What software do you intend to load?

Software included in the server media kit or other software products may impose certain disk space or disk partitioning requirements. Refer to the documentation accompanying this software to determine those requirements.

Once you’ve answered these questions, you’re ready to begin.

What to Do

1. Verify that you’ve received all the parts of your system.

See “About the Parts Shipped to You” on page 12.

2. Ensure that the system’s rear panel AC power switch is in the Off (O) position.

Chapter 2 System Setup 13

3. Connect the AC power cord to a grounded AC power outlet and to the system’s rear panel power inlet.

The outlet must connect the system to a 15A circuit for North America and Japan, and a 10A circuit for Europe. See your local electrical codes.

Insert the female end of the power cord through the tie-wrap loop above the system’s power inlet. Tighten the tie-wrap to secure the connection.

4. Install any optional components shipped with your system.

Many of the options ordered with your system may have been pre-installed at the factory. However, if you ordered options that were not factory-installed, see the following sections for installation instructions:

■ How to Install a Memory Module—page 123

■ How to Install a CPU Module—page 128

■ How to Install a DC/DC Converter—page 132

■ How to Install a PCI Card—page 136

■ How to Install a Disk Drive—page 186

■ How to Install a CD-ROM Drive or Tape Drive —page 192

■ How to Install a Power Supply—page 226

■ How to Install the 8-Bay Storage Expansion Option—page 101

14 Ultra Enterprise 450 Server Owner’s Guide • July 1997

Caution – If you are installing an internal option in your system, you must ensure

that it does not cause your conﬁguration to exceed the system power supply limits; see “How to Determine System Power Requirements” on page 82 for additional information.

5. Set up a console for your server.

You must either attach an ASCII terminal to serial port A or else install a graphics card and attach a monitor, mouse, and keyboard. For more information, see “About Setting Up a Console” on page 20.

6. Conﬁgure the serial port jumpers (if necessary).

Two serial port jumpers located on the main logic boar d are used to conﬁgure the system’s serial ports A and B for either EIA-423 or EIA-232D signal levels. The jumpers are factory-set for EIA-423 levels, which is the default standard for North American users. EIA-232D levels are required for digital telecommunication in nations of the European Community. If you require EIA-232D signal levels, see the following sections for conﬁguration instructions:

■ How to Remove the Left Side Panel—page 36

■ How to Avoid Electrostatic Discharge—page 40

■ About the Main Logic Board Jumpers—page 69

■ About Serial Port Jumpers—page 71

■ How to Install the Left Side Panel—page 38

7. Conﬁgure the network interface.

The system’s standard network interface is a switchable 10BASE-T/100BASE-TX Ethernet interface conforming to the IEEE 802.3u Ethernet standard. The interface conﬁgures itself automatically for either 10-Mbps or 100-Mbps operation, depending on network characteristics.

Supported PCI cards allow connection to additional Ethernet networks, or to token ring, FDDI, or other network types.

■ If you’re using the standard Ethernet interface, see “How to Conﬁgure the

Standard Ethernet Interface” on page 325.

■ If you’re using a PCI network interface, see the documentation accompanying

the PCI network card.

8. Install the rear-panel security device, if required.

See “How to Install the Rear Panel Security Device” on page 17.

9. Turn on power to your server.

See “How to Power On the System” on page 28. For information about the LED status indicators that appear during power up, see “About the Status and Control Panel” on page 8.

Chapter 2 System Setup 15

10. Install and boot the operating system software.

See the installation manual accompanying your Solaris™ software. Also read the SMCC SPARC Hardware Platform Guide, which contains platform-speciﬁc information about software installation. The operating system software is ordered separately from your system hardware.

11. Load additional software from the server media kit.

The server media kit (sold separately) includes several CD-ROM discs containing software to help you operate, conﬁgure, and administer your server. This software may include:

■ Solaris 2.x

■ Updates for Solaris Operating Environment for Sun Microsystems

Computer Company

■ Solaris Desktop

■ Solstice™ DiskSuite™

■ Solstice™ AdminSuite™

■ Solstice™ AutoClient™

■ Solstice™ Backup™

See the appropriate documents provided in the server media kit for a complete listing of included software and detailed installation instructions.

12. Load the Ultra Enterprise 450 server AnswerBook™ online documentation and ShowMe™ How™ multimedia documentation.

See the installation booklets that accompany these CD-ROM discs in the Ultra Enterprise 450 server documentation set.

13. Decide on your internal disk array conﬁguration.

For information about possible conﬁgurations, see “About Disk Array Conﬁgurations and Concepts” on page 341.

16 Ultra Enterprise 450 Server Owner’s Guide • July 1997

How to Install the Rear Panel Security Device

The rear panel security device supplied with the system is designed to prevent unauthorized removal of the system power supplies, main logic board, and left side panel.

What to Do

1. Attach the small security bracket to the rear of the system chassis as shown below.

The bracket comes with a captive Phillips screw. Remove the existing screw from the system chassis ﬁrst.

Chapter 2 System Setup 17

2. Remove the Phillips screw that secures the right side of the AC line ﬁlter assembly to the rear panel.

3. Locate the two tabs at the base of the large security bracket and insert them into the corresponding slots in the small bracket that you just installed.

4. Attach the top portion of the large security bracket to the AC line ﬁlter assembly as shown below.

Use the captive Phillips screw at the top of the bracket.

5. Install a padlock or combination lock through the bracket to prevent unauthorized removal of the system power supplies and main logic board.

18 Ultra Enterprise 450 Server Owner’s Guide • July 1997

6. Attach the remaining security bracket to the bottom corner of the rear panel as shown below.

The bracket comes with a captive Phillips screw. Remove the existing screw from the system chassis ﬁrst.

7. Install a padlock or combination lock through the bracket to prevent unauthorized removal of the left side panel.

Chapter 2 System Setup 19

About Setting Up a Console

To install your server or to diagnose problems, you need some way to enter system commands and view system output. There are three ways to do this.

1. Attach an ACSII character terminal to the serial port. You can attach a simple terminal to the serial port. The terminal can be capable of

displaying and entering alphanumeric but not graphical data. For instructions, see “How to Attach an Alphanumeric Terminal” on page 21.

2. Establish a tip connection from another Sun system. For information about establishing a tip connection, see the OpenBoot 3.x Command

Reference Manual, an on-line version of which is included with the Solaris System Administrator AnswerBook that ships with Solaris software.

3. Install a local graphics console on your server. The server is often shipped without a mouse, keyboard, monitor or frame buffer for

the display of graphics. To install a local graphics console on a server, you must install a graphics frame buffer card in a PCI slot, and attach a monitor, mouse, and keyboard to the appropriate back panel ports. For detailed instructions, see “How to Conﬁgure a Local Graphics Console” on page 23.

20 Ultra Enterprise 450 Server Owner’s Guide • July 1997

How to Attach an Alphanumeric Terminal

Before You Begin

If your server is conﬁgured without a local graphics console, you need to attach an alphanumeric terminal (or establish a tip connection) to the server in order to install the system and to run diagnostic tests. For background information, see “About Setting Up a Console” on page 20.

Alternatively, you can install a local graphics console on the server; see “How to Conﬁgure a Local Graphics Console” on page 23.

For information about establishing a tip connection, see the OpenBoot 3.x Command

Reference Manual, an online version of which is included with the Solaris System Administrator AnswerBook that ships with Solaris software.

What to Do

1. Connect the terminal’s data cable to the serial port connector or to serial port A on the splitter cable.

The serial port connector is located on the back panel, as shown.

2. Connect the terminal’s power cable to an AC outlet.

Chapter 2 System Setup 21

3. Set the terminal to receive:

■ At 9600 baud

■ An 8-bit signal with no parity and 1 stop bit

See the documentation accompanying your terminal for more information.

22 Ultra Enterprise 450 Server Owner’s Guide • July 1997

How to Conﬁgure a Local Graphics Console

Before You Begin

If your server is conﬁgured without a local graphics console, you need to install one in order to install the system and to run diagnostic tests. For background information, see “About Setting Up a Console” on page 20.

Alternatively, you can attach an ASCII terminal (or modem line) to the system’s serial port; see “How to Attach an Alphanumeric Terminal” on page 21.

To install a local graphics console, you must have:

■ A supported PCI-based graphics card

■ A monitor (CRT) with appropriate resolution

■ A Sun-compatible keyboard

■ A Sun-compatible mouse and mouse pad

What to Do

1. Install the graphics card in a vacant PCI slot.

See “How to Install a PCI Card” on page 136.

Chapter 2 System Setup 23

2. Attach the monitor video cable to the graphic card’s video port.

3. Connect the monitor’s power cord to an appropriate AC power outlet.

4. Attach the keyboard cable to the server’s keyboard/mouse port.

5. Attach the mouse cable to the appropriate receptacle on the keyboard.

What Next

You can now issue system commands and view system messages. Continue with your installation or diagnostic procedure as needed.

24 Ultra Enterprise 450 Server Owner’s Guide • July 1997

CHAPTER

Preparing to Install or Replace Parts

This chapter tells you what you need to know, and need to do, before opening the system to install, remove, or replace parts.

Tasks covered in this chapter include:

■ How to Power Off the System—page 26

■ How to Power On the System—page 28

■ How to Initiate a Reconﬁguration Boot—page 30

■ How to Remove the Right Side Panel—page 32

■ How to Install the Right Side Panel—page 34

■ How to Remove the Left Side Panel—page 36

■ How to Install the Left Side Panel—page 38

■ How to Avoid Electrostatic Discharge—page 40

Other information covered in this chapter includes:

■ Reference for Installation and Service: Tools Required—page 42

How to Power Off the System

Caution – Before turning off system power, halt the operating system as described

below. Failure to halt the operating system properly can result in loss of disk drive data.

What to Do

1. Notify users that the system will be powered down.

2. Back up the system ﬁles and data, if necessary.

3. Halt the operating system using the appropriate commands.

Refer to the Solaris Handbook for SMCC Peripherals that corresponds to your operating system.

4. Wait for the system halt messages and the ok prompt.

5. Turn the keyswitch on the front panel of the system to the Standby position ( ), which is fully counterclockwise.

Standby position

26 Ultra Enterprise 450 Server Owner’s Guide • July 1997

6. Press the AC power switch on the system rear panel to turn off power.

I 0

Chapter 3 Preparing to Install or Replace Parts 27

How to Power On the System

Before You Begin

If a terminal or local console is not already connected to the system, you need to install one before continuing the startup procedure;

■ See “How to Conﬁgure a Local Graphics Console” on page 23 .

Note – Do not use this power-on procedure if you have just installed an internal or

external storage device, or any new part that plugs into the main logic board. To power on the system after adding any of these options, see “How to Initiate a Reconﬁguration Boot” on page 30.

What to Do

Caution – Never move the system when system power is on. Movement can cause

catastrophic disk drive failure. Always power off the system before moving it.

Note – Removing either of the system side panels activates the system power

interlock switches. This safety mechanism prevents DC voltages from reaching any internal component when either side panel is removed and the AC power switch is left on.

1. Turn on power to any peripherals and external storage devices.

Read the documentation supplied with the device for speciﬁc instructions.

2. Turn on power to the monitor or terminal.

A terminal or monitor is required for viewing system messages. For setup instructions, see “How to Conﬁgure a Local Graphics Console” on page 23.

3. Open the top door on the front of the system.

28 Ultra Enterprise 450 Server Owner’s Guide • July 1997

4. Turn the keyswitch to the Standby position ( ).

5. Press the rear panel AC power switch to the On ( ) position.

I 0

Standby position

6. Turn the keyswitch to the appropriate setting.

See “About the Status and Control Panel” on page 8 for information about keyswitch settings.

Note – The system may take anywhere from 30 seconds to two minutes before video

is displayed on the system monitor or the ok prompt appears on an attached terminal. This time depends on the level of power-on self-test diagnostics being performed.

Chapter 3 Preparing to Install or Replace Parts 29

How to Initiate a Reconﬁguration Boot

Before You Begin

After installing any new part that plugs into the main logic board or any internal or external storage device, you must perform a reconﬁguration boot so that your system is able to recognize the newly installed option(s).

What to Do

1. Turn on power to any peripherals and external storage devices.

Read the documentation supplied with the device for speciﬁc instructions.

2. Turn on power to the monitor or terminal.

A terminal or monitor is required for viewing system messages. For setup instructions, see “How to Attach an Alphanumeric Terminal” on page 21 or “How to Conﬁgure a Local Graphics Console” on page 23.

3. Open the top door on the front of the system.

4. Turn the keyswitch to the Standby position ( ).

5. Press the rear panel AC power switch to the On ( ) position.

6. Turn the keyswitch to the Power-on position ( ).

7. When the system banner is displayed on the monitor, immediately enter the Stop-a sequence on the Sun keyboard.

Hold down the Stop key and press the a key. If you are using an alphanumeric terminal instead of a monitor, press the Break key on the terminal’s keyboard.

8. When the ok prompt is displayed, enter the following command:

ok boot -r

This command rebuilds the device trees for the system, incorporating any newly installed options. After a device has been added to a device tree, it can be recognized by the system. After the reconﬁguration reboot has successfully completed, the system prompt should be displayed.

30 Ultra Enterprise 450 Server Owner’s Guide • July 1997

Note – The system may take anywhere from 30 seconds to two minutes before video

is displayed on the system monitor or the ok prompt appears on an attached terminal. This time depends on the level of power-on self-test diagnostics being performed.

Caution – Never move the system when system power is on. Movement can cause

catastrophic disk drive failure. Always power off the system before moving it.

What Next

The system’s front panel LED indicators provide power-on status information. For more information about the system LEDs, see:

■ “About the Status and Control Panel” on page 8.

Chapter 3 Preparing to Install or Replace Parts 31

How to Remove the Right Side Panel

Note – Removing either of the side panels activates the system power interlock

switches. This safety mechanism prevents DC voltages from reaching any internal component when a side panel is removed and the AC power switch is left on. Do not remove a side panel while the system is operating or the system will power off abruptly.

Before You Begin

Complete this task:

■ “How to Power Off the System” on page 26

What to Do

1. Loosen the two large captive screws that secure the right side panel to the rear of the system chassis.

32 Ultra Enterprise 450 Server Owner’s Guide • July 1997

2. Slide the panel toward the rear of the system approximately 1 inch (2.5 cm).

The hooks beneath the top surface of the panel should disengage from the slots on top of the system chassis.

3. Lift the panel up and free from the system chassis.

Put the panel in a safe location until you’re ready to reassemble the system.

What Next

You are now ready to install, remove, or replace components inside the right half of the system chassis.

Chapter 3 Preparing to Install or Replace Parts 33

How to Install the Right Side Panel

Before You Begin

Remember to detach the antistatic wrist or foot strap from the system chassis sheet metal.

What to Do

1. Insert the eight hooks beneath the top surface of the panel into the corresponding slots on top of the system chassis.

2. Press the lower edge ﬂush against the chassis and slide the panel toward the front of the unit as far as it will go.

34 Ultra Enterprise 450 Server Owner’s Guide • July 1997

3. Tighten the two large captive screws that secure the panel to the rear of the system chassis.

What Next

When you’re ready to restart the system, see:

■ “How to Power On the System” on page 28; or

■ “How to Initiate a Reconﬁguration Boot” on page 30

Chapter 3 Preparing to Install or Replace Parts 35

How to Remove the Left Side Panel

Note – Removing either of the side panels activates the system power interlock

Before You Begin

Complete this task:

■ “How to Power Off the System” on page 26

What to Do

1. Loosen the two large captive screws that secure the left side panel to the rear of the system chassis.

36 Ultra Enterprise 450 Server Owner’s Guide • July 1997

2. Slide the panel toward the rear of the system approximately 1 inch (2.5 cm).

The hooks beneath the top surface of the panel should disengage from the slots on top of the system chassis.

3. Lift the panel up and free from the system chassis.

Put the panel in a safe location until you’re ready to reassemble the system.

What Next

You are now ready to install, remove, or replace components inside the left half of the system chassis.

Chapter 3 Preparing to Install or Replace Parts 37

How to Install the Left Side Panel

Before You Begin

Remember to detach the antistatic wrist or foot strap from the system chassis sheet metal.

What to Do

1. Insert the four hooks beneath the top surface of the panel into the corresponding slots on top of the system chassis.

2. Press the lower edge ﬂush against the chassis and slide the panel toward the front of the unit as far as it will go.

38 Ultra Enterprise 450 Server Owner’s Guide • July 1997

3. Tighten the two large captive screws that secure the panel to the rear of the system chassis.

What Next

When you’re ready to restart the system, see:

■ “How to Power On the System” on page 28

■ “How to Initiate a Reconﬁguration Boot” on page 30

Chapter 3 Preparing to Install or Replace Parts 39

How to Avoid Electrostatic Discharge

Use the following procedure to prevent static damage whenever you are accessing any of the internal components of the system.

Before You Begin

Complete this task:

■ “How to Power Off the System” on page 26

You must have the following items:

■ Antistatic wrist or foot strap

■ Antistatic mat (or the equivalent)

What to Do

Caution – Printed circuit boards and hard disk drives contain electronic

components that are extremely sensitive to static electricity. Ordinary amounts of static from your clothes or the work environment can destroy components. Do not touch the components themselves or any metal parts without taking proper antistatic precautions.

1. Disconnect the AC power cord from the wall power outlet only if you will be handling the AC line ﬁlter assembly or power distribution board.

The AC power cord provides a discharge path for static electricity, so you generally want to leave it plugged in during installation and repair procedures. The only time you should unplug the cord is when you service the AC line ﬁlter assembly or power distribution board.

40 Ultra Enterprise 450 Server Owner’s Guide • July 1997

2. Use an antistatic mat or similar surface.

When performing any option installation or service procedure, place static-sensitive parts, such as boards, cards, and disk drives, on an antistatic surface. The following items can be used as an antistatic surface:

■ The bag used to wrap a Sun™ replacement part

■ The shipping container used to package a Sun replacement part

■ Sun electrostatic discharge (ESD) mat, PN 250-1088 (available through your

Sun sales representatives)

■ Disposable ESD mat, shipped with replacement parts or options

3. Use an antistatic wrist strap.

Attach the appropriate end to the system chassis sheet metal, and attach the other end of the strap to your wrist. Refer to the instructions that come with the strap.

4. Detach both ends of the strap after you have completed the installation or service procedure.

Chapter 3 Preparing to Install or Replace Parts 41

Reference for Installation and Service: Tools Required

The following tools are required to install and service the system:

■ Screwdriver, Phillips #1

■ Screwdriver, Phillips #2

■ Screwdriver, ﬂat-blade#1

■ Screwdriver, ﬂat-blade#2

■ ESD mat, Sun PN 250-1088, or equivalent

■ Grounding wrist or foot strap

The latter two items help protect the server against damage due to electrostatic discharge. For more information, see “How to Avoid Electrostatic Discharge” on page 40.

42 Ultra Enterprise 450 Server Owner’s Guide • July 1997

CHAPTER

Hardwar e Conﬁguration

This chapter describes hardware conﬁgurations for the system. Topics covered in this chapter include:

■ About Reliability, Availability, and Serviceability Features —page 44

■ About Memory—page 51

■ About CPU Modules—page 54

■ About DC/DC Converters—page 56

■ About Peripheral Component Interconnect (PCI) Buses—page 58

■ About Internal Disk Drives—page 61

■ About Power Supplies—page 64

■ About the Standard Ethernet Port—page 66

■ About the Serial Ports—page 67

■ About the Parallel Port—page 68

■ About the Main Logic Board Jumpers—page 69

■ About Serial Port Jumpers—page 71

■ About the Clock Mode Select Jumper—page 72

■ About Flash PROM Jumpers—page 73

■ About the SCSI Removable Media Bays and the External SCSI Port—page 75

■ About Power Budget Constraints—page 79

■ How to Determine System Power Requirements—page 82

About Reliability, Availability, and Serviceability Features

Reliability, availability, and serviceability are aspects of a system’s design that affect its ability to operate continuously and minimize the time necessary to service the system. Reliability refers to a system’s ability to operate continuously without failures and to maintain data integrity. System availability refers to the percentage of time that a system remains accessible and usable. Serviceability relates to the time it takes to restore a system to service following a system failure. Together, reliability, availability, and serviceability provide for near continuous system operation.

To deliver high levels of reliability, availability and serviceability, the system offers the following features:

■ Error correction and parity checking for improved data integrity

■ Easily accessible status indicators

■ Hot-pluggable disk drives

■ Support for RAID 0, 1, and 5 storage conﬁgurations

■ Environmental monitoring and fault protection

■ N+1 power supply redundancy

■ Hot-swappable power supplies

■ Automatic system recovery (ASR)

■ Hardware watchdog mechanism

■ Three different levels of system diagnostics

Error Correction and Parity Checking

Error Correcting Code (ECC) is used on all internal system data paths to ensure high levels of data integrity. All data that moves between processors, I/O, and memory has end-to-end ECC protection.

The system reports and logs correctable ECC errors. A correctable ECC error is any single bit error in a 64-bit ﬁeld. Such errors are corrected as soon as they are detected. The ECC implementation can also detect double bit errors in the same 64-bit ﬁeld and multiple bit errors in the same nibble (4 bits).

In addition to providing ECC protection for data, the system offers parity protection on all system address buses. Parity protection is also used on the PCI and SCSI buses, and in the UltraSPARC CPU’s internal and external cache.

44 Ultra Enterprise 450 Server Owner’s Guide • July 1997

Status LEDS

The system provides easily accessible light emitting diode (LED) indicators on the system front panel, internal disk bays, and power supplies to provide a visual indication of system and component status. Status LEDs eliminate guesswork and simplify problem diagnosis for enhanced serviceability.

Status and control panel LEDs are described in “About the Status and Control Panel” on page 8. Disk drive and power supply LEDs are described in “Error Indications” on page 393.

Hot-Pluggable Disk Drives

The “hot-plug” feature of the system’s internal disk drives permits the removal and installation of drives while the system is operational. All drives are easily accessed from the front of the system. Hot-plug technology signiﬁcantly increases the system’s serviceability and availability, by providing the ability to:

■ Increase storage capacity dynamically to handle larger workloads and improve

system performance.

■ Replace disk drives without service disruption.

For more information about hot-pluggable disk drives, see “About Internal Disk Drives” on page 61 and “About Disk Array Conﬁgurations and Concepts” on page 341.

Support for RAID 0, RAID 1, and RAID 5 Disk Conﬁgurations

The Solstice™ DiskSuite™ software designed for use with the system provides the ability to conﬁgure system disk storage in a variety of different RAID levels. You choose the appropriate RAID conﬁguration based on the price, performance, and reliability/availability goals for your system.

RAID 0 (striping), RAID 1 (mirroring), RAID 0+1 (striping plus mirroring) and RAID 5 conﬁgurations (striping with interleaved parity) can all be implemented using Solstice DiskSuite. You can also conﬁgure one or more drives to serve as “hot spares” to automatically ﬁll in for a defective drive in the event of a disk failure.

For more information about RAID conﬁgurations, see “About Disk Array Conﬁgurations and Concepts” on page 341.

Chapter 4 Hardware Conﬁguration 45

Environmental Monitoring and Control

The system features an environmental monitoring subsystem designed to protect against:

■ Extreme temperatures

■ Lack of air ﬂow through the system

■ Power supply problems

Monitoring and control capabilities reside at the operating system level as well as in the system’s ﬂash PROM ﬁrmware. This ensures that monitoring capabilities are operational even if the system has halted or is unable to boot.

The environmental monitoring subsystem uses an industry standard I implemented on the main logic board. The I

C bus is a simple two-wire serial bus, used throughout the system to allow the monitoring and control of temperature sensors, fans, power supplies, and status LEDs.

Temperature sensors (thermistors) are located throughout the system to monitor each CPU module and power supply, as well as the ambient temperature of the system. The monitoring subsystem frequently polls each thermistor in the system and uses the sampled temperatures to:

■ Regulate fan speeds for maintaining an optimum balance between proper cooling

and noise levels.

■ Report and respond to any over temperature conditions.

C bus

To indicate an over temperature condition, the monitoring subsystem generates a warning or error message, and depending on the nature of the condition, may even shut down the system. If a CPU module reaches 80 degrees C or the ambient temperature reaches 50 degrees C, the system generates a warning message, illuminates the temperature fault LED on the status and control panel, and automatically shuts itself down. In the case of a power supply, a warning is generated when the power supply temperature reaches 95 degrees C and the system is shut down if the temperature reaches 100 degrees C.

All error and warning messages are displayed on the system console (if one is attached) and are logged in the /var/adm/messages ﬁle. Front panel fault LEDs remain lit after an automatic system shut down to aid in problem diagnosis.

The monitoring subsystem is designed to protect the system from overheating even if the operating system is hung. The system uses a timer that is continually reset by the operating system. If the operating system fails to reset the timer within three minutes, the system automatically accelerates all fans to full speed. The fans spinning at full speed also provide an audible warning that the system is not functioning properly.

46 Ultra Enterprise 450 Server Owner’s Guide • July 1997

The monitoring subsystem is also designed to detect and respond to fan failures. The system includes seven fans, arranged into three groups as follows:

■ CPU fan tray assembly (three fans)

■ Disk fan tray assembly (three fans)

■ Upper blower assembly (one fan)

A fan failure in the CPU or disk fan tray assemblies causes the monitoring subsystem to generate an error message, light the temperature LED on the status and control panel, and shut down the system. If the upper blower assembly fails, a error message is generated but the system continues to operate.

The power subsystem is monitored in a similar fashion. The monitoring subsystem periodically polls the power supply status registers for the following conditions in the power supplies:

■ Power supply OK status, indicating the status of each supply’s +3.3V, +5V and

+12V DC outputs

■ Current limit error condition, indicating that the system conﬁguration exceeds

the AC current limit of the power supply subsystem

■ Current share error condition, indicating that the power supplies in a multiple

power supply conﬁguration are not sharing the load equally

If a problem in any of these areas is detected, an error message is displayed on the console (if one is attached) and logged in the /var/adm/messages ﬁle. The power supply LED on the status and control panel is also lit. The LEDs located on the power supply itself will indicate the type of fault, and if two or more power supplies are installed, will indicate which supply is the source of the fault. If the problem reaches a safety limit, the system is automatically powered off.

For more information about error messages generated by the environmental monitoring subsystem, see “Environmental Failures” on page 411. For additional details about the status and control panel LEDs, see “About the Status and Control Panel” on page 8.

N+1 Power Supply Redundancy

The system can accommodate a maximum of three power supplies. Most system conﬁgurations can operate with only one power supply installed. In this case, a second supply can be used to provide N+1 redundancy, allowing the system to continue operating should one of the power supplies fail.

Two supplies will provide enough power for a heavily conﬁgured system. In this case, a third supply can be added for redundancy. With three power supplies installed in the system, even a heavily conﬁgured machine can continue full operation during removal or replacement of one of the supplies.

Chapter 4 Hardware Conﬁguration 47

For more information about power supplies, redundancy, and conﬁguration rules, see “About Power Supplies” on page 64.

Hot-Swappable Power Supplies

Power supplies in a redundant conﬁguration feature a “hot swap” capability. You can remove and replace a faulty power supply without turning off the system power or even shutting down the operating system. The power supplies are easily accessed from the rear of the system, without the need to remove system covers.

Automatic System Recovery (ASR)

The system provides for automatic system recovery from the following types of hardware component failures:

■ CPU modules

■ Memory modules

■ PCI buses

■ System I/O interfaces

The automatic system recovery (ASR) feature allows the system to resume operation after experiencing certain hardware faults or failures. Automatic self-test features enable the system to detect failed hardware components and an auto-conﬁguring capability designed into the system’s boot ﬁrmware allows the system to deconﬁgure failed components and restore system operation. As long as the system is capable of operating without the failed component, the ASR features will enable the system to reboot automatically, without operator intervention.

During the power-on sequence, if a faulty component is detected, the component is effectively disabled and if the system remains capable of functioning, the boot sequence continues. In a running system, some types of failures (such as a processor failure) will usually bring the system down. If this happens, the ASR functionality enables the system to reboot immediately if it is possible for the system to function without the failed component. This prevents a faulty hardware component from keeping the entire system down or causing the system to crash again.

Control over the system’s ASR functionality is provided by a number of OpenBoot PROM commands. These are described in the document Platform Notes: Sun

Ultra 450 Workstation and Ultra Enterprise 450 Server, available on the Solaris on Sun Hardware AnswerBook. This AnswerBook documentation is provided on the SMCC

Updates CD for the Solaris release you are running.

48 Ultra Enterprise 450 Server Owner’s Guide • July 1997

Note – In some cases, Platform Notes: Sun Ultra 450 Workstation and Ultra

Enterprise 450 Server may be included with your system documentation instead of on

the Solaris on Sun Hardware AnswerBook.

Hardware Watchdog Mechanism

To detect and respond to system hang conditions, the Ultra Enterprise 450 server features a hardware watchdog mechanism—a hardware timer that is continually reset as long as the operating system is running. In the event of a system hang, the operating system is no longer able to reset the timer. The timer will then expire and cause an automatic system reset, eliminating the need for operator intervention. To enable this feature, you must edit the /etc/system ﬁle to include the following entry:

set watchdog_enable = 1

This change does not take effect until you reboot the system.

Four Levels of Diagnostics

For enhanced serviceability and availability, the system provides four different levels of diagnostic testing: Power-On Self-Test (POST), OpenBoot diagnostics (OBDiag), SunVTS, and Solstice SyMON.

POST and OBDiag are ﬁrmware-resident diagnostics that can run even if the system is unable to boot the operating system. Application-level diagnostics, such as SunVTS and Solstice SyMON, offer additional troubleshooting capabilities once the operating system is running.

POST diagnostics provide a quick but thorough check of the most basic hardware functions of the system. For more information about POST, see “About Power-On Self-Test (POST) Diagnostics” on page 372 and “How to Use POST Diagnostics” on page 373.

OBDiag provides a more comprehensive test of the system, including external interfaces. OBDiag is described in “About OpenBoot Diagnostics (OBDiag)” on page 375 and “How to Use OpenBoot Diagnostics (OBDiag)” on page 383.

At the application level, you have access to SunVTS diagnostics. Like OBDiag, SunVTS provides a comprehensive test of the system, including its external interfaces. SunVTS also allows you to run tests remotely over a network

Chapter 4 Hardware Conﬁguration 49

connection.You can only use SunVTS if the operating system is r unning. For more information about SunVTS, see “About SunVTS Software” on page 387, “How to Use SunVTS Software” on page 390, and “How to Check Whether SunVTS Software Is Installed” on page 389.

Another application-level program, called Solstice SyMON, provides you with a variety of continous system monitoring capabilities. It allows you to monitor system hardware status and operating system performance of your server. For more information about SyMON, see “About Solstice SyMON Software” on page 392.

50 Ultra Enterprise 450 Server Owner’s Guide • July 1997

About Memory

The system’s main logic board provides sixteen slots for high-capacity dual inline memory modules (DIMMs). The system supports Sun standard 144-pin, 5-volt, 60-nanosecond memory modules. Modules of 16-, 32-, 64-, 128-, and 256-Mbyte capacities can be installed in the system. Total system memory capacity ranges from 64 Mbytes to 4 Gbytes.

Memory slots are organized into four banks, with each bank comprising four slots. The system reads from, or writes to, all four DIMMs in a bank at the same time. DIMMs, therefore, must be added four at a time in the same bank. The following ﬁgure shows the memory banks on the main logic board.

Memory banks

Whenever banks A and B are populated with identical capacity DIMMs, memory reads and writes are automatically interleaved between the two banks. This is called two-way interleaving. Two-way interleaving signiﬁcantly reduces the average memory latency, thus improving overall system performance. Two-way interleaving also occurs automatically when banks C and D are populated with identical capacity DIMMs. When all four banks contain identical capacity DIMMs, the system interleaves across all four banks (called four-way interleaving ), to further reduce average memory latency.

By default, memory interleaving only occurs when identical capacity DIMMs are installed. However, it is possible to conﬁgure the system to perform memory interleaving even when DIMMs of different sizes are used. In this case, however, some of the memory capacity will remain unused. For more information, please refer

Chapter 4 Hardware Conﬁguration 51

to Platform Notes: Sun Ultra 450 Workstation and Ultra Enterprise 450 Server, available on the Solaris on Sun Hardware AnswerBook. This AnswerBook documentation is provided on the SMCC Updates CD for the Solaris release you are running.

Note – In some cases, Platform Notes: Sun Ultra 450 Workstation and Ultra

Enterprise 450 Server may be included with your system documentation instead of on

the Solaris on Sun Hardware AnswerBook.

Conﬁguration Rules

Memory DIMMs must be added four at a time within the same bank, and each bank used should have four identical capacity DIMMs installed (for example, four 32-Mbyte DIMMs, or four 64-Mbyte DIMMs).

The main logic board must have at least one bank ﬁlled or the system will not boot. You must ﬁll the banks in the following order: A, B, C, D.

Bank Sockets

A (Required) U1901 through U1904 B U1801 through U1804 C U1701 through U1704 D U1601 through U1604

Two-way interleaving occurs automatically whenever identical capacity DIMMs ar e installed in banks A and B or in banks C and D. Four-way interleaving occurs automatically whenever all four banks are ﬁlled with identical capacity DIMMs. Interleaving is disabled when only one or three banks are occupied. Therefore, it is recommended that when adding additional memory to the system you increase from one bank to two, or from two banks to four. While the system will operate with three banks ﬁlled, the performance gains from adding memory in the third bank will be partially offset by the loss of memory interleaving.

The system will operate with memory DIMMs of different capacities in different banks (for example four 32-Mbyte DIMMs in bank A and four 64-Mbyte DIMMs in bank B), but for improved performance, populate banks A and B with DIMMs of identical capacity, and populate banks C and D with DIMMs of identical capacity.

Installing additional memory will almost always improve system performance, however adding DIMMs of equal capacities to those already installed will provide the best performance gains.

52 Ultra Enterprise 450 Server Owner’s Guide • July 1997

For maximum performance, install identical capacity DIMMs in all four memory banks. The following table shows how to best populate the memory banks when conﬁguring your system for 512 Mbytes of memory.

Memory Performance Level Memory Slot Population

Good Bank A has four, 128-MB DIMMs (no interleaving) Better Banks A and B each have four 64-MB DIMMs (two-way interleaving) Best Banks A, B, C, and D all have four 32-MB DIMMs (four-way interleaving)

Memory modules are delicate. Be sure to take appropriate precautions to avoid damaging them through electrostatic discharge. For more information, see “How to Avoid Electrostatic Discharge” on page 40.

Caution – Dual Inline Memory Modules (DIMMs) are made of electronic

components that are extremely sensitive to static electricity. Static from your clothes or work environment can destroy the modules.

Do not remove any DIMM from its antistatic packaging until you are ready to install it on the system board. Handle the modules only by their edges. Do not touch the components or any metal parts. Always wear a grounding strap when you handle the modules.

Chapter 4 Hardware Conﬁguration 53

About CPU Modules

The UltraSPARC II CPU module is a high-performance, highly-integrated superscalar processor implementing the SPARC-V9 64-bit RISC architecture. The UltraSPARC II processor supports both 2D and 3D graphics, as well as image processing, video compression and decompression, and video effects through the sophisticated visual instruction set (VIS). VIS provides high levels of multimedia performance, including real-time video compression/decompression and two streams of MPEG-2 decompression at full broadcast quality with no additional hardware support.

The system’s main logic board provides slots for four UltraSPARC II CPU modules. Each processor module includes one CPU chip with integrated cache memory for data and instructions, as well as 1 Mbyte or more of external SRAM cache memory. Each processor slot is supported by a DC/DC converter module, located on the system’s main logic board, which provides the proper core voltage for the CPU chip.

Processor modules communicate with the system’s main memory and I/O subsystem via the system’s high-speed Ultra Port Architecture (UPA) data bus. The UPA’s clock rate is automatically synchronized with the clock speed of the CPU modules, and the UPA clock operates at either one third or one fourth the clock rate of the CPUs. For example, if the CPUs operate at 250 MHz, the UPA will operate at a clock rate of 83.3 MHz.

For information on installing CPU modules, see “How to Install a CPU Module” on page 128. For information on installing a DC/DC converter, see “How to Install a DC/DC Converter” on page 132.

Conﬁguration Rules

One, two, three, or four CPU modules can be installed. Only UltraSPARC II processors are supported.

All CPUs installed in a system must operate at identical clock speeds. Fill the CPU slots in the following order:

Order of Installation Slot Number Slot Name Connector Number

First 4 CPU-B2 J0401 Second 2 CPU-A2 J0201 Third 3 CPU-B1 J0301 Last 1 CPU-A1 J0101

54 Ultra Enterprise 450 Server Owner’s Guide • July 1997

For each CPU module installed in the system, you must install an associated DC/DC converter. If the DC/DC converter is not installed or is installed in the wrong location, the system will not operate. For information on DC/DC converter, see “About DC/DC Converters” on page 56 and “How to Install a DC/DC Converter” on page 132.

The following ﬁgure shows the CPU slot and DC/DC converter socket locations on the main logic board.

CPU Slot 1

CPU Slot 2

CPU Slot 3

CPU Slot 4

CPU-A1

CPU-A2

CPU-B1

CPU-B2

J0101

J0201

J0301

J0401

DC-B1 DC-B2

DC/DC converters

DC-A1 DC-A2

Chapter 4 Hardware Conﬁguration 55

About DC/DC Converters

Each CPU module slot is supported by a DC-to-DC converter module, located on the system’s main logic board, which provides the proper core voltage for the CPU chip. For each CPU module installed in the system, you must install the correct DC/DC converter type in the correct socket. If the DC/DC converter is not installed or is installed in the wrong location, the system will not operate.

The following table identiﬁes the DC/DC converter socket associated with each CPU module slot:

If the CPU module is installed in

CPU-B2 (Slot 4) DC-B2 socket CPU-A2 (Slot 2) DC-A2 socket CPU-B1 (Slot 3) DC-B1 socket CPU-A1 (Slot 1) DC-A1 socket

The DC-DC converter must be installed in

For information about installing a DC/DC converter, see “How to Install a DC/DC Converter” on page 132. For more information about CPU modules, see “About CPU Modules” on page 54 and “How to Install a CPU Module” on page 128.

56 Ultra Enterprise 450 Server Owner’s Guide • July 1997

The following ﬁgure shows the CPU slot and DC/DC converter socket locations on the main logic board.

CPU Slot 1

CPU Slot 2

CPU Slot 3

CPU Slot 4

CPU-A1

CPU-A2

CPU-B1

CPU-B2

J0101

J0201

J0301

J0401

DC-B1 DC-B2

DC/DC converters

DC-A1 DC-A2

Chapter 4 Hardware Conﬁguration 57

About Peripheral Component Interconnect (PCI) Buses

All system communications with storage peripherals and network interface devices is mediated by three UPA-to-PCI bridges, located on the system’s main logic boar d. Each of these bridge chips manages communication between the UPA bus and two PCI buses, giving the system a total of six separate PCI buses. Together, these six PCI buses support slots for up to ten PCI interface cards. One PCI bus (bus B) also handles communications between the system and devices connected to the main logic board’s SCSI, FastEthernet, serial, parallel, and keyboard/mouse ports.

PCI cards come in a variety of conﬁgurations. Not all cards will ﬁt or operate in all PCI slots, so it is important to know the speciﬁcations of your PCI cards and the types of cards supported by each PCI slot in the system.

Some PCI cards are as short as 6.875 inches in length (called “short” cards), while the maximum length of PCI cards is 12.28 inches (called “long” cards). Each slot in the system can accommodate either a long or a short card.

Older PCI cards communicate over 32-bit PCI buses, while many newer cards communicate over wider 64-bit buses. The system will accept up to ten 32-bit cards or up to nine 64-bit wide cards. Two of the nine slots available for 64-bit car ds are 32-bit slots, so cards inserted in these slots will operate as 32-bit cards.

Older PCI cards operate at 5 VDC, while newer cards are designed to operate on

3.3 VDC. Cards that require 5 volts will not operate in 3.3-volt slots, and 3.3-volt cards will not operate in 5-volt slots. “Universal” PCI cards are designed to operate on either 3.3 volts or 5 volts, so these cards can be inserted into either type of slot. The system will accept three cards that operate at 3.3 volts or seven cards that operate at 5 volts. The system will accept up to ten universal cards.

Most PCI cards operate at clock speeds of 33 MHz, while some newer cards operate at 66 MHz. The system will accept up to three cards that operate at 66 MHz and up to ten cards that operate at 33 MHz.

58 Ultra Enterprise 450 Server Owner’s Guide • July 1997

The table below shows the mapping of the PCI slots to the three PCI-UPA bridges and six PCI buses, and the type of PCI cards supported in each slot.

PCI Slot

PCI-UPA Bridge

PCI Bus

Slot Width (bits)/ Card Type (bits)

Clock Rates (MHz)

DC Voltage/ Card Type

10 1 B 32 / 32 only 33 5 V & Univ 9 3 F 32 / 32 or 64 33 5 V & Univ 8 3 F 32 / 32 or 64 33 5 V & Univ 7 3 F 64 / 32 or 64 33 5 V & Univ 6 3 E 64 / 32 or 64 33 and 66 3.3 V & Univ 5 1 A 64 / 32 or 64 33 and 66 3.3 V & Univ 4 2 C 64 / 32 or 64 33 and 66 3.3 V & Univ 3 2 D 64 / 32 or 64 33 5 V & Univ 2 2 D 64 / 32 or 64 33 5 V & Univ 1 2 D 64 / 32 or 64 33 5 V & Univ

The following ﬁgure shows the PCI slots on the main logic board.

33 MHz, 5 V, 32/64 bit PCI

66 MHz, 3.3 V, 32/64 bit PCI/66 66 MHz, 3.3 V, 32/64 bit PCI/66 66 MHz, 3.3 V, 32/64 bit PCI/66

33 MHz, 5 V, 32/64 bit PCI 33 MHz, 5 V, 32/64 bit PCI

33 MHz, 5 V, 32/64 bit PCI

33 MHz, 5 V, 32 bit PCI 33 MHz, 5 V, 32 bit PCI 33 MHz, 5 V, 32 bit PCI

9 8 7 6

5 4 3 2 1

Chapter 4 Hardware Conﬁguration 59

Conﬁguration Rules

All slots can be used for PCI universal cards. All slots can support PCI long or short cards. Each slot can supply up to 15 W of power. The SCSI host adapter card included in the 8-bay storage expansion option

consumes one 32-bit or 64-bit PCI slot. If two storage expansion options are installed, two 32-bit or 64-bit PCI slots will be unavailable for other cards.

PCI cards may be freely installed in any compatible PCI slots. Slots need not be ﬁlled in any particular order. In most cases, the system’s I/O performance will be unaffected by placement of PCI cards in the slots. Heavily loaded systems, however, will deliver better overall performance if attention is given to the bus placement of high-throughput interface cards.

For best performance, the highest throughput interface cards should be installed in slots supported by different buses and different PCI-UPA bridges. Examples of high-throughput interfaces are dual-channel UltraSCSI host adapters and ATM-622 interfaces.

Overall system availability may also be improved by installing redundant storage or network interfaces in slots on different PCI buses and PCI-UPA bridges.

For maximum system performance, heavily-used, high-throughput interfaces, such as dual channel UltraSCSI host adapters, should be installed in PCI slot 10 only as a last resort. PCI bus B, which supports slot 10, already supports both the onboard UltraSCSI controller for four internal disk drives plus the onboard FastEthernet. Additional high-throughput interfaces may perform better when installed on another bus.

60 Ultra Enterprise 450 Server Owner’s Guide • July 1997

About Internal Disk Drives

The Ultra Enterprise 450 server supports up to 4, 12, or 20 internal, hot-pluggable UltraSCSI disk drives. Drives are 3.5-inches wide by 1-inch high.

Four drives are supported by the 40-Mbyte per second UltraSCSI interface on the system’s main logic board. Eight additional drives can be supported by installing an 8-bay storage expansion option. Two 8-bay storage expansion options are required to support the maximum of 20 internal disk drives.

The 8-bay storage expansion option provides an eight disk backplane, which mounts to the rear of the system’s disk cage; a 32-bit, dual-channel, UltraSCSI, PCI host adapter card; plus all power and data cables necessary to support eight internal disk drives, four drives on each UltraSCSI channel.

With two 8-bay storage expansion options installed, the system will support up to twenty internal drives, with four drives assigned to each of ﬁve separate UltraSCSI channels. This conﬁguration gives the system an internal storage I/O bandwidth of up to 200 Mbytes per second.

The Solstice™ DiskSuite™ software supplied with the Solaris server media kit allows internal disk drives to be used in a variety of RAID conﬁgurations. RAID 0 (striping), RAID 1 (mirroring), RAID 0+1 (striping plus mirroring), and RAID 5 (striping with interleaved parity) storage conﬁgurations can all be implemented. Drives can also be conﬁgured as “hot spares.” For more information on RAID conﬁgurations, see “About Disk Array Conﬁgurations and Concepts” on page 341.

The system’s disk cage features twenty green/yellow LED lights, each one located adjacent to a disk bay. These LEDs indicate the operating status and any fault conditions associated with each disk drive. This diagnostic feature helps the administrator quickly identify drives requiring service. For additional information about disk drive LEDs, see “Disk LEDs” on page 397.

The following ﬁgure shows the system’s 20 internal disk slots and LEDs. Disk slots are numbered from 0 to 19. When adding a new disk drive to the system, you should install the drive in the lowest available slot number.

Chapter 4 Hardware Conﬁguration 61

18 19 16 17 14 15 12 13 10 11

89 67 45

LEDs LEDs

23 01

The “hot-plug” feature of the system’s internal disk drives allows the removal and installation of drives while the system is operational. This capability signiﬁcantly reduces system down-time associated with disk drive replacement.

The hot-plug procedure involves software commands for preparing the system prior to removing a disk drive and for reconﬁguring the operating environment after installing the replacement drive. The exact hot-plug procedure depends on which version of the Solaris operating environment you are using. For the complete procedure, please refer to Platform Notes: Sun Ultra 450 Workstation and Ultra Enterprise 450 Server, available on the Solaris on Sun Hardware AnswerBook. This AnswerBook documentation is provided on the SMCC Updates CD for the Solaris release you are running.

Note – In some cases, Platform Notes: Sun Ultra 450 Workstation and Ultra

Enterprise 450 Server may be included with your system documentation instead of

on the Solaris on Sun Hardware AnswerBook.

In order to perform a disk hot-plug procedure, you must know the slot number of the faulty disk (0 through 19) and its logical device name (for example, c2t3d0). If you know the disk slot number, it is possible to determine the logical device name, and vice versa. It is also possible to determine both the disk slot number and the logical device name if you know the physical device name (such as /devices/ pci@6,4000/scsi@4,1/sd@3,0). Physical device names are typically provided in SCSI error messages generated by software.

62 Ultra Enterprise 450 Server Owner’s Guide • July 1997

For instructions on how to translate from one form of disk identiﬁer to another, see Platform Notes: Sun Ultra 450 Workstation and Ultra Enterprise 450 Server.

Conﬁguration Rules

Disk drives must be Sun standard 3.5-inches wide by 1-inch high, UltraSCSI-compatible drives.

Each disk should be installed in the lowest-numbered drive slot available. Fill drive bays from the bottom of the disk cage to the top.

The SCSI IDs for the disks are hardwired on the disk backplanes. There is no need to set any SCSI ID jumpers on the disk drives themselves. The SCSI target address (SCSI ID) of each disk drive is determined by the slot location where the drive is connected to its UltraSCSI backplane. The backplane also provides the SCSI termination for each drive. Jumpers should not be used on the disk drive itself to select a speciﬁc SCSI ID.

The disk backplane for the ﬁrst 8-bay storage expansion option should be installed directly above the system’s standard four-disk backplane. The backplane for the second 8-bay storage expansion option mounts above the ﬁrst option backplane, at the top rear of the disk cage.

The dual-channel UltraSCSI PCI host adapter card supplied with the 8-bay storage expansion option may be installed in any available PCI slot. For maximum performance, the system should be conﬁgured, if possible, with no more than one dual-channel UltraSCSI host adapter on each PCI bus. For additional information on conﬁguring PCI adapters, see “About Peripheral Component Interconnect (PCI) Buses” on page 58.

The dual-channel UltraSCSI PCI host adapter card supplied with the 8-bay storage expansion option has two internal SCSI connectors and two external SCSI connectors. When installed as part of the 8-bay storage expansion option, only the internal connectors are used. Do not connect external SCSI devices to a SCSI channel that is used to support internal disk drives. Additional single-ended and differential UltraSCSI host adapters are available for controlling external SCSI storage devices.

For information about implementing RAID conﬁgurations, see “About Disk Array Conﬁgurations and Concepts” on page 341.

Chapter 4 Hardware Conﬁguration 63

About Power Supplies

A central power distribution board delivers DC power for all internal system components. The system’s power supplies plug into connectors on this board, and all of the supplies installed share equally in satisfying the power demands of the system.

Power supplies are modular units, designed for fast, easy installation or removal, even while the system is fully operational. Supplies are installed in bays at the rear of the system, as shown in the following ﬁgure.

I 0

Power supply bay 2

Power supply bay 1

Power supply bay 0

The system can accommodate a maximum of three power supplies. Each supply provides up to 560 watts of DC power. Most system conﬁgurations can operate with only one power supply installed. In this case, a second supply can be used to provide N+1 redundancy, allowing the system to continue operating should one of the power supplies fail.

Two supplies will provide enough power for a heavily conﬁgured system. In this case, a third supply can be added for N+1 redundancy. With three power supplies installed in the system, even a heavily conﬁgured machine can continue full operation during removal or replacement of one of the supplies.

In a system with three power supplies, the third power supply is always redundant; it cannot be used to increase output capacity.

64 Ultra Enterprise 450 Server Owner’s Guide • July 1997

In order to determine how many power supplies are required to provide redundancy for your conﬁguration, you must calculate the power requirements for your system. For guidelines on calculating your power requirements, see “How to Determine System Power Requirements” on page 82.

Note – When removing a hot-swappable power supply, do not disengage and

reengage the supply in rapid succession. Always remove a supply completely before reinserting the same supply or a replacement supply. Rapid seating and unseating of power supplies will result in false error conditions.

Conﬁguration Rules

You can install power supplies in any of the bays — and in any or der. For information about installing power supplies, see “How to Install a Power Supply” on page 226.

If you have only one power supply installed in the system, the system will operate only as long as the power demands of the conﬁguration do not exceed the output capacity of that single supply. In order to determine how many power supplies are required for your conﬁguration (one or two), you must calculate the system’s total power requirements. For guidelines on calculating your power requirements, see “How to Determine System Power Requirements” on page 82.

Once the system’s total power requirements are met (either with one or two power supplies), installation of an additional power supply will enable the system to remain fully operational even if one power supply is removed or becomes inoperative. For information about removing and installing power supplies, see “How to Install a Power Supply” on page 226 and “How to Remove a Power Supply” on page 224.

Caution – Each time you install additional options in the system, you must

recalculate the system’s power requirements in order to determine the number of power supplies required to support the new conﬁguration. This is especially important if you expect the system to operate on one power supply or to have power redundancy with only two supplies installed.

Chapter 4 Hardware Conﬁguration 65

About the Standard Ethernet Port

The system’s main logic board provides an auto-sensing, switchable 10BASE-T/ 100BASE-TX Ethernet interface conforming to the IEEE 802.3u Ethernet standard. The interface conﬁgures itself automatically for either 10 Mbps or 100 Mbps operation, depending on network characteristics.

Two rear panel connectors provide access to the Ethernet interface:

■ One RJ-45 connector for connecting a category-5 twisted-pair Ethernet (TPE) cable

■ One Media Independent Interface (MII) connector for connecting an external

MII transceiver

Note – You can use only one of the main logic board Ethernet connectors;

you cannot connect to the TPE and MII connectors at the same time.

The Media Independent Interface lets you connect the system to a variety of external 100BASE-TX (Fast) Ethernet transceivers, providing compatibility with different Ethernet wiring types. When an external transceiver is connected to the MII, the system automatically activates the MII port and disables the TPE port.

Sun Microsystems offers an MII-to-AUI transceiver as a separately orderable option (order number X467A). A number of third-party MII transceivers are also available for connecting to TX, T4, FX, and AUI-type Ethernet networks.

For instructions on conﬁguring the main logic board Ethernet interface, see “How to Conﬁgure the Standard Ethernet Interface” on page 325.

For connector diagrams and pin assignments, see “Reference for the Twisted-Pair Ethernet (TPE) Connector” on page 420 and “Reference for the Media Independent Interface (MII) Ethernet Connector” on page 421.

For information about operating characteristics and conﬁguration parameters for the

hme Fast Ethernet device driver, please see Platform Notes: The hme Fast Ethernet Device Driver. This document is available on Solaris on Sun Hardware AnswerBook,

which is provided on the SMCC Updates CD for the Solaris release you are running.

66 Ultra Enterprise 450 Server Owner’s Guide • July 1997

About the Serial Ports

The system provides two serial communications ports through a single, shared DB-25 connector located on the rear panel. The primary port is capable of both synchronous and asynchronous communication, while the secondary port is asynchronous only. In synchronous mode, the primary port operates at any rate from 50 Kbaud to 256 Kbaud when the clock is generated internally. When the clock is generated from an external source, the synchronous port operates at rates up to 384 Kbaud. In asynchronous mode, either port supports baud rates of 50, 75, 110, 200, 300, 600, 1200, 1800, 2400, 4800, 9600, 19200, 38400, 57600, 76800, 115200, 153600, 230400, 307200 and 460800 baud.

The primary port is accessible by connecting a standard serial cable to the rear panel serial port connector. In order to access the secondary port, a serial port splitter cable (Sun part number X985A) must be attached to the rear panel serial port connector. The connector labeled “A” on the splitter cable provides the primary port; the connector labeled “B” provides the secondary port.

Both the primary and secondary ports can be conﬁgured to provide EIA-423 or EIA-232D signal levels. Both ports are conﬁgured to one level or the other by jumpers located on the system’s main logic board. The default setting is EIA-423. For more information about conﬁguring the serial port jumpers, see “About Serial Port Jumpers” on page 71.

See “Reference for the Serial Port A and B Connectors” on page 414 for the connector diagram, rear panel icon, and pin assignments.

Chapter 4 Hardware Conﬁguration 67

About the Parallel Port

The system provides one IEEE 1284-compatible, bidirectional parallel port for connecting the system to a local printer or other compatible parallel device. Connectivity is provided by a standard 25-pin DB-25 connector on the rear panel of the system. The parallel port operates at a 2-megabytes per second data transfer rate and supports the EPP protocol modes as well as standard Centronics, Nibble, and Byte modes.

See “Reference for the Parallel Connector” on page 416 for the connector diagram, rear panel icon, and pin assignments.

68 Ultra Enterprise 450 Server Owner’s Guide • July 1997

About the Main Logic Board Jumpers

The jumpers on the main logic board have the following functions:

■ J3303 and J3304 are used to conﬁgure the serial ports provided for either EIA-423

or EIA-232D operation. For information about the EIA-423/232D jumper settings, see “About Serial Port Jumpers” on page 71.

■ J3102, J3103, and J5501 are used to affect the operation of the ﬂash PROM located

on the main logic board. For information about the ﬂash PROM jumper settings, see “About Flash PROM Jumpers” on page 73.

■ J2701 is used to select the proper clock mode for the system. For information on

the clock mode select jumper settings, see “About the Clock Mode Select Jumper” on page 72.

The illustration below shows the jumper locations on the main logic board.

Serial port

jumpers

J3304

J3303

Clock mode

select jumper

Flash PROM

jumpers

J3103

J2701

J3102

J5501

Chapter 4 Hardware Conﬁguration 69

Jumpers are marked on the main logic board with identiﬁcation numbers. For example, the serial port jumpers are marked J3303 and J3304. Jumper pins are located immediately adjacent to the identiﬁcation number. The default jumper positions are indicated with shaded regions. Pin 1 is marked with an asterisk (*) in any of the positions shown below.

J 3 X X X

Part number Pins

Asterisk indicates Pin 1 Shaded region indicates

default jumper position

70 Ultra Enterprise 450 Server Owner’s Guide • July 1997

About Serial Port Jumpers

The serial port jumpers on the main logic board (J3303 and J3304) permit the conﬁguration of the system’s two serial ports for either EIA-423 or EIA-232D signal levels. EIA-423 levels are the default standard for North American users. EIA-232D levels are required for digital telecommunication in nations of the European Community.

The ﬁgure below shows the jumper locations and the table describes their function.

Serial port

jumpers

J3304

J3103

J3303

J2701

J3102

Jumper

J3303 EIA-232D EIA-423 2 + 3 RS232/RS423 SEL J3304 EIA-232D EIA-423 2 + 3 RS232/RS423 SEL

Shunt on Pins 1 + 2 Selects

Shunt on Pins 2 + 3 Selects

J5501

Default Shunt on Pins Signal Controlled

Chapter 4 Hardware Conﬁguration 71

About the Clock Mode Select Jumper

The clock mode select jumper (J2701) is used to select the appropriate clock mode for the system. This jumper is preset at the factory and should not be changed. The ﬁgure below shows the jumper location and the table deﬁnes its standard setting.

J3304

J3303

J2701

J3103

J3102

J5501

Clock mode select jumper

Jumper

Shunt on Pins 1 + 2 Select

J2701 Correct clock

mode for any UltraSPARC II CPU modules

72 Ultra Enterprise 450 Server Owner’s Guide • July 1997

Shunt on Pins 2 + 3 Select

Default Shunt on Pins Signal Controlled

Not used 1 + 2 UPA_RATIO2

About Flash PROM Jumpers

The system uses ﬂash PROMs to permit the reprogramming of speciﬁc code blocks that are held in non-volatile system memory, and to permit remote reprogramming of that code by an authorized system administrator over a local area network.

Three jumpers on the main logic board affect ﬂash PROM operation. The ﬁgure below shows the jumper locations, and the table describes their function.

J3304

J3303

Flash PROM

J2701

jumpers

Jumper

Shunt on Pins 1 + 2 Selects

J3103

J3102

Shunt on Pins 2 + 3 Selects

J5501

Default Shunt on Pins Signal Controlled

J3102 Flash PROM Not To Be Used 1 + 2 FLASH PROM SEL J3103 Write Enable Write Protect 1 + 2 FLASH PROM

PROG ENABLE

J5501 High Half Booting Normal Booting 2 + 3 XOR LOGIC SET

Chapter 4 Hardware Conﬁguration 73

Note – Jumper J3103 is factory-set so that the ﬂash PROM is write-enabled. You use

the keyswitch located on the front panel to write protect the ﬂash PROM. When the switch is set to the Locked position ( ), the ﬂash PROM is write-protected. When the switch is set to the Power-on position ( ) or to the Diagnostics position ( ), the ﬂash PROM is write-enabled.

For more information about ﬂash PROM programming, see the documentation supplied with the ﬂash PROM update CD-ROM.

74 Ultra Enterprise 450 Server Owner’s Guide • July 1997

About the SCSI Removable Media Bays and the External SCSI Port

The removable media assembly located at the top front of the system provides mounting bays for two SCSI devices. The lower bay houses a SCSI 12x CD-ROM drive. The upper bay is a 5.25-inch half-height (1.6-inch) bay, which may be used for a narrow SCSI (50-pin) tape drive, such as an 8-mm tape, a 4-mm DDS-2 or DDS-3 tape, or a quarter-inch cassette tape drive. Both removable media bays provide access to the same SCSI bus.

The SCSI bus that supports the removable media devices also extends to a 68-pin SCSI connector, which is located on the system’s rear panel. This bus is Fast/Widecapable (20 Mbytes per second) and can support additional external, single-ended, wide or narrow SCSI devices. See “Reference for the SCSI Connector” on page 417 for a diagram and pinout of the connector.

With an internal tape drive installed, this bus will support up to two external SCSI tape devices. A system without an internal tape drive will support up to four external SCSI tape devices. Additional external tape devices can be supported by installing appropriate PCI host adapter cards.

Target Devices

Up to 15 devices can operate on the bus at 20 Mbytes/sec. Target addresses for the SCSI bus (also known as SCSI IDs) are available in a range of 0 through F. Target address 7 is reserved for the SCSI host adapter located on the main logic board.

The following target addresses are reserved for internal devices:

Address Device Comment

5 Tape drive If no tape drive is installed in the system, then this address can

6 CD_ROM If no CD-ROM drive is installed in the system, then this

7 Host adapter This address is reserved exclusively for the host adapter on the

be used for an external device. If you later install an internal tape drive, then you must use 5 as its address and assign a different address to the external drive.

address can be used for an external device. If you later install an internal CD-ROM drive, then you must use 6 as its address and assign a different address to the external device.

main logic board. It cannot be used for any other device.

Chapter 4 Hardware Conﬁguration 75

The addresses for the CD-ROM and tape drives are determined by jumpers located on the drives. If the CD-ROM and tape drives have been factory-installed, they are conﬁgured with the correct addresses for the system.

When installing a drive as an option, you should verify the address settings on these devices. The settings usually involve three sets of pins that determine the address in binary. Attaching a jumper across a set of pins creates a binary 1 in that position.

421

0002= SCSI ID 0

011

SCSI ID 3

421 421

0012 = SCSI ID 1

1002 = SCSI ID 4

0102 = SCSI ID 2

1012 = SCSI ID 5

421 421 421

110

SCSI ID 6

1112 = SCSI ID 7

421 421

See the documentation accompanying the drive for device-speciﬁc information about checking and setting jumpers.

Bus Length

The maximum SCSI bus length for daisy-chained SCSI devices is 6 meters (19.7 feet), including the internal bus length (1.0 meter/3.37 feet). You must include the internal bus length (1 meter/3.37 feet) in your bus length calculations.

Cabling and Termination

The internal bus is terminated on both ends. When an external device is attached to the connector provided on the rear panel of the system, the on-board terminators near that connector are disabled to extend the bus. In this case, the last external device in the chain must provide the termination.

Note – If you connect a narrow device to the external SCSI port, the on-board

terminators only disable the termination for the lower byte of data; the upper byte is still terminated on the main logic board.

76 Ultra Enterprise 450 Server Owner’s Guide • July 1997

Use the following cabling guidelines to ensure proper device termination:

■ The SCSI bus must be correctly terminated. Most Sun devices use

autotermination. See the documentation supplied with the device.

■ If all external mass storage devices use 68-pin connectors, connect all non-Sun

devices to the system ﬁrst and Sun devices last in the chain, since Sun 68-pin devices use autotermination.

■ If external mass storage devices consist of 68-pin devices and 50-pin devices,

connect the Sun 68-pin devices to the system ﬁrst and terminate the chain with a 50-pin device and its terminator. The 68-pin device connected to the 68-50 pin adapter cable must be auto-terminating in order to terminate the high-order bits.

Caution – Do not connect 68-pin devices after 50-pin devices; SCSI bus errors

will occur.

The following ﬁgures provide a summary of the cabling guidelines.

System

Non-Sun Device Non-Sun Device Sun Device

68 - 68 68 - 68 68 - 68

Sun Device Non-Sun Device 50-pin Device

68 - 68

68 - 68 68 - 50

Adapter Cable

Terminator

Multi-initiator Support

The SCSI implementation of the system includes multi-initiator support: any external host adapter on the bus can drive Termpower. This means that if the system should lose, the devices on the SCSI bus (except those powered by the system) can continue to operate.

Chapter 4 Hardware Conﬁguration 77

Conﬁguration Rules

You can connect up to 15 devices to the Fast/Wide SCSI bus. The maximum SCSI bus length is 6 meters (19.7 feet), including the internal bus

length (1.0 meter/3.37 feet). You must include the internal bus length (1 meter/3.37 feet) in your bus length calculations.

You cannot assign target address 7 to any device; it is reserved for the host adapter on the main logic board.

If a tape drive is installed in the system, you must assign it target address 5. If a CD-ROM is installed in the system, you must assign it target address 6. If all external mass storage devices use 68-pin connectors, connect all non-Sun

devices to the system ﬁrst and Sun devices last in the chain. Sun devices use autotermination.

If external mass storage devices consist of 68-pin devices and 50-pin devices, connect the Sun 68-pin devices to the system ﬁrst and terminate the chain with a 50-pin device and its terminator.

78 Ultra Enterprise 450 Server Owner’s Guide • July 1997

About Power Budget Constraints

You must ensure that your conﬁguration does not exceed the power budget constraints of the system.

This section describes the following three areas in which system power budget constraints occur:

■ Maximum rated values for the +3.3, +5, and +12 VDC power supply outputs

■ Total power supply output capacity

■ Current limit of the AC power outlet

“How to Determine System Power Requirements” on page 82 provides the information that you need to calculate your power budget. It includes a worksheet that lists the amps required for the basic system and all internal options at +3.3 VDC, +5 VDC, and +12 VDC. It also provides a procedure that steps you through the worksheet to calculate the values that you need.

You must determine the power requirements of your conﬁguration when you ﬁrst install the system and also whenever you add an option. Therefore, you should save the worksheet and store it in a safe and convenient location so that you don’t have to recalculate the power budget for the entire system when you install a new option.

+3.3 VDC, +5 VDC, and +12 VDC Maximum Rated Values

Using the worksheet and procedure provided in “How to Determine System Power Requirements,” you ﬁrst calculate the DC current draw on each power supply output (+3.3 VDC, +5 VDC, and +12 VDC). You must ensure that the total for each is within the maximum rated value for that output. The following table provides the maximum rated values for one supply and two supply conﬁgurations.

Power Supply Output One Power Supply Two Power Supplies

+3.3 VDC 47 A 94 A +5 VDC 65 A 130 A +12 VDC 16 A 32 A

1. A third supply can only be used to provide redundancy — not to increase power capacity.

Maximum Rated Value

Chapter 4 Hardware Conﬁguration 79

Caution – The power supply conﬁguration cannot support the maximum values on

all three outputs at the same time because that would exceed the total power supply output capacity. The load can be distributed between the outputs in any way that does not violate their maximum values or exceed the total output capacity of the power supply conﬁguration. For a single supply conﬁguration, the combined +3.3 V and +5 V output cannot exceed 400 W. For a two power supply conﬁguration, the combined output cannot exceed 800 W. Therefore, you must also calculate the total DC current draw on the +3.3 V and +5 V power supply outputs.

Power Supply Output Capacity

Using your values for the DC current draw on each power supply output, you then calculate the total power consumption (total watts) of your system. You must ensure that the total watts required for your system does not exceed the maximum output capacity of the power supply conﬁguration.

The maximum output capacity of a single power supply is 560 watts. The maximum output capacity of two power supplies is 1120 W.

You can also use the total watts required to determine the proper power supply conﬁguration for your system—how many supplies you need to power your system and to provide power supply redundancy, if required. See “About Power Supplies” on page 64 for information about power supplies and conﬁguration rules.

In addition, you can use the total watts (also known as DC watts) to calculate AC watts, thermal dissipation and Volt-Amps for your conﬁguration. These values ar e used in facility planning. For convenience, these calculations are provided in “How to Determine System Power Requirements” on page 82.

Note – The system has built-in protection against exceeding the output capacity of

the power supply conﬁguration. If your conﬁguration exceeds the recommended operational capacity of the power supply conﬁguration, the general fault indicator ( ) illuminates on the LED and control panel but the system continues to operate until you can correct the problem. If the conﬁguration exceeds the safety threshold for power supply operation, then the system shuts itself off automatically. See “About the Status and Control Panel” on page 8 for information about the general fault indicator.

80 Ultra Enterprise 450 Server Owner’s Guide • July 1997

Sun Microsystems Ultra Enterprise 450 Owner's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual