This soft copy for use by IBM employees only. IBM

IBM Netfinity and PC Server Technology and Selection Reference

David Watts, Christophe Olivier, Wilson Souza

International Technical Support Organization

http://www.redbooks.ibm.com

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SG24-4760-03

IBM International Technical Support Organization SG24-4760-03

IBM Netfinity and PC Server Technology and Selection Reference

December 1997

This soft copy for use by IBM employees only. This soft copy for use by IBM employees only.

Take Note!

Before using this information and the product it supports, be sure to read the general information in Appendix D, “Special Notices” on page 313.

Fourth Edition (December 1997)

This edition applies to IBM PC Servers for use with IBM and non-IBM operating systems.

Comments may be addressed to: IBM Corporation, International Technical Support Organization Dept. HZ8 Building 678 P.O. Box 12195 Research Triangle Park, NC 27709-2195

When you send information to IBM, you grant IBM a non-exclusive right to use or distribute the information in any way it believes appropriate without incurring any obligation to you.

 Copyright International Business Machines Corporation 1996 1997. All rights reserved. Note to U.S. Government Users — Documentation related to restricted rights — Use, duplication or disclosure is subject to restrictions set forth in GSA ADP Schedule Contract with IBM Corp. This soft copy for use by IBM employees only.

Contents

Preface ...... vii The Team That Wrote This Redbook ...... vii Comments Welcome ...... ix

Part 1. Server Requirements ...... 1

Chapter 1. Introduction ...... 3

Chapter 2. PC Server Functional Requirements ...... 5

Chapter 3. PC Server Performance Considerations ...... 7 3.1 Performance Requirements ...... 7 3.2 Bottlenecks ...... 9 3.3 Performance Monitoring ...... 10 3.4 Examples of Performance Measurements ...... 11

Chapter 4. PC Server Sizing ...... 15 4.1 Disk and Memory Requirements ...... 15 4.2 CPU Requirements ...... 17 4.3 Network Adapter Requirements ...... 17

Chapter 5. PC Server Availability ...... 19 5.1 Definitions ...... 19 5.2 Improving Availability ...... 20 5.3 Recovery ...... 20 5.4 Calculating Availability ...... 21

Chapter 6. PC Server System Management Issues ...... 23 6.1 What Is System Management? ...... 23 6.2 Centralized Environments ...... 24 6.3 PC Server Entities: The Domain Concept ...... 24 6.4 Systems Management Tools ...... 27

Part 2. Server Technology ...... 29

Chapter 7. Introduction ...... 31

Chapter 8. Processor Technology ...... 33 8.1 Processors ...... 33 8.2 Multiprocessing ...... 43

Chapter 9. Bus Technology ...... 47 9.1 IBM PC/AT Bus ...... 47 9.2 EISA Bus ...... 47 9.3 Micro Channel Bus ...... 47 9.4 VESA Local Bus ...... 48 9.5 PCI Local Bus ...... 49 9.6 I•O ...... 54 9.7 Universal Serial Bus ...... 56

 Copyright IBM Corp. 1996 1997 iii This soft copy for use by IBM employees only.

Chapter 10. Memory and Cache Technology ...... 59 10.1 Cache ...... 60 10.2 Memory ...... 65

Chapter 11. Storage Subsystem ...... 71 11.1 Device Interfaces ...... 71 11.2 SCSI Technology ...... 73 11.3 SSA Technology ...... 83 11.4 Hard Disk Drives ...... 91 11.5 RAID Technology ...... 92 11.6 A Comparison of RAID Performance Characteristics ...... 97 11.7 Predictive Failure Analysis ...... 97 11.8 Overall Storage Subsystem Recommendations ...... 100

Chapter 12. Tape Technology ...... 103 12.1 Storage Management ...... 103 12.2 Tape Terminology ...... 103 12.3 Tape Technology ...... 104

Chapter 13. Network Adapter Technology ...... 107 13.1 Shared RAM Adapters ...... 107 13.2 Bus Master Adapters ...... 107 13.3 IBM LANStreamer Family of Adapter Cards ...... 108 13.4 PeerMaster Technology ...... 108 13.5 Gigabit Ethernet Technology ...... 108 13.6 High-Speed Token-Ring ...... 109

Chapter 14. Uninterruptible Power Supplies ...... 111 14.1 UPS Systems ...... 111 14.2 UPS Sizing ...... 114

Chapter 15. Clustering ...... 117 15.1 Moving in Parallel ...... 117 15.2 Clustering Today ...... 119 15.3 PC Server Clusters ...... 120 15.4 IBM′s Strategy ...... 122

Part 3. Server Products ...... 123

Chapter 16. Introduction ...... 127

Chapter 17. IBM PC Server 310 ...... 131 17.1 Technical Description ...... 132 17.2 Security ...... 137 17.3 Supported Operating Systems ...... 138 17.4 Model Summary ...... 138

Chapter 18. IBM PC Server 315 ...... 141 18.1 Technical Description ...... 141 18.2 Security ...... 147 18.3 Supported Operating Systems ...... 148 18.4 Model Summary ...... 148

Chapter 19. IBM PC Server 325 ...... 151

iv IBM Netfinity and PC Server Technology and Selection Reference This soft copy for use by IBM employees only.

19.1 Technical Description ...... 151 19.2 Supported Operating Systems ...... 158 19.3 Model Summary ...... 158

Chapter 20. IBM PC Server 330 ...... 161 20.1 Technical Description ...... 161 20.2 Supported Operating Systems ...... 168 20.3 Configuring and Monitoring your Disk Arrays ...... 168 20.4 Model Summary ...... 170

Chapter 21. IBM PC Server 704 ...... 173 21.1 Technical Description ...... 173 21.2 Model Summary ...... 180

Chapter 22. IBM Netfinity 7000 ...... 183 22.1 Technical Description ...... 183 22.2 Model Summary ...... 192

Chapter 23. Server Enclosures ...... 195 23.1 The IBM Netfinity Rack Enclosure ...... 195 23.2 3517 SCSI Multi-Storage Enclosure ...... 200 23.3 3518 PC Server Enterprise Expansion Enclosure ...... 201 23.4 3519 Rack Storage Expansion Enclosure ...... 205 23.5 IBM Netfinity EXP10 Storage Expansion Unit ...... 209 23.6 IBM PC Server SCSI-2 F/W Enhanced Repeater ...... 214 23.7 3510 SCSI Storage Enclosure ...... 215 23.8 3527 SSA Entry Storage Subsystem ...... 216

Chapter 24. Storage Controllers ...... 219 24.1 SCSI-2 Fast PCI Adapter ...... 219 24.2 SCSI-2 Fast/Wide Adapter/A ...... 219 24.3 Ultra Wide SCSI PCI Adapter ...... 220 24.4 PC Server 704 SCSI-2 F/W PCI RAID Adapter ...... 221 24.5 PC Server 330 Embedded SCSI Controllers ...... 221 24.6 ServeRAID II Ultra SCSI Adapter ...... 222 24.7 PC Server SSA RAID Adapter ...... 228 24.8 IBM SSA RAID Cluster Adapter ...... 229 24.9 Choosing SCSI Cables ...... 233

Chapter 25. PC Server Tape Options ...... 235 25.1 4/10 GB Internal SCSI DAT Tape Drive ...... 235 25.2 24/48 GB Tape Autoloader ...... 236 25.3 TR4 SCSI Tape Drive ...... 238 25.4 IBM 20/40 GB 8 mm Tape Drive ...... 240 25.5 IBM 35/70 GB Internal DLT Tape Drive ...... 241 25.6 IBM 3447 Digital Linear Tape Library ...... 242 25.7 IBM 3449 8 mm Tape Library ...... 244 25.8 Tape Backup Units Summary ...... 247

Chapter 26. Network Adapters ...... 249 26.1 PCI Token-Ring Adapter ...... 249 26.2 Triple LANStreamer PCI Adapter ...... 251 26.3 100/10 EtherJet PCI Adapter ...... 253

Chapter 27. PC Server Options ...... 255

Contents v This soft copy for use by IBM employees only.

27.1 Advanced Systems Management Adapter ...... 255 27.2 PC Server 780 W Redundant Power Supply ...... 257

Chapter 28. Clustering Products ...... 259 28.1 Windows NT Solutions ...... 259 28.2 OS/2 Solutions ...... 261 28.3 NetWare/IntranetWare Solutions ...... 262

Chapter 29. ServerGuide ...... 265 29.1 Packaging ...... 265 29.2 Overview ...... 265

Chapter 30. IBM Netfinity 5.1 ...... 267 30.2 IBM Netfinity 5.x Functional Enhancements ...... 268 30.3 Netfinity Functions ...... 270 30.4 Netfinity Examples ...... 277

Chapter 31. LANClient Control Manager ...... 291 31.1 LCCM Functions ...... 291 31.2 Prerequisites ...... 292 31.3 Basic Operation ...... 293

Part 4. Appendixes ...... 299

Appendix A. Sources of Drivers and Information ...... 301 A.1 Compatibility Information ...... 301 A.2 Device Drivers ...... 301 A.3 Software ...... 302

Appendix B. IBM TechConnect Program ...... 303 B.1 Certification ...... 303

Appendix C. Part Number Cross Reference ...... 305

Appendix D. Special Notices ...... 313

Appendix E. Related Publications ...... 317 E.1 International Technical Support Organization Publications ...... 317 E.2 Redbooks on CD-ROMs ...... 317 E.3 Other Publications ...... 317

How to Get ITSO Redbooks ...... 319 How IBM Employees Can Get ITSO Redbooks ...... 319 How Customers Can Get ITSO Redbooks ...... 320 IBM Redbook Order Form ...... 321

List of Abbreviations ...... 323

Index ...... 327

ITSO Redbook Evaluation ...... 329

vi IBM Netfinity and PC Server Technology and Selection Reference This soft copy for use by IBM employees only.

Preface

This redbook is a reference guide for selecting IBM Netfinity and IBM PC Server hardware. Its primary purpose is to describe the technology that is used to produce high-capacity systems suitable for today′s business environment.

The book is divided into three parts. The first part describes the requirements your business may have when selecting a PC Server. It discusses what each of the server types is, what performance and availability requirements you should consider, and the level of management you require to maintain your systems.

Part 2 describes in detail what technology is available that will meet the requirements you selected in Part 1. It covers the technology in each of the subsystems in IBM Netfinity and PC Server systems from processors, memory and disks, through to tape, LAN adapters and power supplies.

Finally, Part 3 catalogs the Netfinity and PC Server systems and options that are currently available from IBM. The technical specifications of server models, enclosures, adapters, disks, tapes and management software are described, providing a one-stop listing of what is available and how they all fit together.

The information in this redbook should prove particularly useful to marketing professionals, IT architects, customers and anyone else who needs to plan or purchase a server system.

Basic knowledge of PCs and servers is assumed.

The Team That Wrote This Redbook This redbook was produced by a team of specialists from around the world working at the Systems Management and Networking ITSO Center, Raleigh.

David Watts is an Advisory ITSO Specialist for PC Servers at the ITSO Center in Raleigh. He conducts residencies and writes redbooks on IBM PC Servers and network operating systems. His most recent publications include the Clustering and High Availability Guide for IBM Netfinity and IBM PC Servers, SG24-4858 and Implementing PC ServeRAID SCSI and SSA RAID Subsystems, SG24-2098. He has been working with PCs for the past 14 years, most recently as a server specialist for the IBM PC Company in Australia. He has a Bachelor of Engineering degree from the University of Queensland and had worked for IBM Australia for nine years.

Christophe Olivier is a Systems Engineer in France. He has six years of experience in supporting servers, desktop PCs and related softwares. His areas of experience include OS/2, LAN Server, Windows NT and CM/2. He holds a degree of Electromechanical Engineering.

Wilson Souza is a L2 Server Engineer in Brazil. He has been working with PC Server for 2 years. He has 10 years of experience in PCs and has range of experience in electronics, network, PC Hardware and programming. His area of expertise include Windows NT, OS/2, Novell and UNIX. He holds a degree in Electronic Engineering.

 Copyright IBM Corp. 1996 1997 vii This soft copy for use by IBM employees only.

The authors of the third edition of this redbook were: David Watts Wim Feyants Joerg Gempe

The authors of the second edition of this redbook were: Tim Kearby David Watts Jonathan (Jonno) Wright Werner Orgas

The authors of the first edition of this redbook were: Tim Kearby David Watts