IBM OpenPower 720, eServer OpenPower 720 Technical Overview And Introduction

Front cover

IBM OpenPower 720

Technical Overview
and Introduction

Deskside and rack-mount server for
managing e-business

Outstanding performance based on
POWER5 processor technology

From Web servers to
integrated cluster solutions

Giuliano Anselmi

Gregor Linzmeier

Wolfgang Seiwald

Philippe Vandamme

Scott Vetter

ibm.com/redbooks

Redpaper

International Technical Support Organization

IBM Sserver OpenPower 720 Technical Overview and
Introduction

October 2004

Note: Before using this information and the product it supports, read the information in “Notices” on page v.

Second Edition (October 2004)

This edition applies to IBM Sserver OpenPower 720.

© Copyright International Business Machines Corporation 2004. All rights reserved.

Note to U.S. Government Users Restricted Rights -- Use, duplication or disclosure restricted by GSA ADP Schedule
Contract with IBM Corp.

Contents

Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v

Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

The team that wrote this Redpaper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Become a published author . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

Comments welcome. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

Chapter 1. General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 System specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Physical package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2.1 IBM eServer OpenPower 720 deskside . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.2.2 IBM eServer OpenPower 720 rack-mounted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3 Minimum and optional features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.3.1 Processor card features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.3.2 Memory features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.3.3 Disk and media features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.3.4 USB diskette drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.3.5 I/O drawers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.3.6 Hardware Management Console models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.4 Express Product Offerings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.5 System racks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.5.1 IBM RS/6000 7014 Model T00 Enterprise Rack . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.5.2 IBM RS/6000 7014 Model T42 Enterprise Rack . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.5.3 AC Power Distribution Unit and rack content . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.5.4 Rack-mounting rules for OpenPower 720 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1.5.5 Additional options for rack. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1.5.6 OEM rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Chapter 2. Architecture and technical overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.1 The POWER5 chip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.1.1 Simultaneous multi-threading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.1.2 Dynamic power management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.1.3 POWER chip evolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.1.4 CMOS, copper, and SOI technology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.2 Processor cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.2.1 Available processor speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2.3 Memory subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2.3.1 Memory placement rules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2.3.2 Memory throughput . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.3.3 Memory restrictions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.4 System buses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2.4.1 RIO buses and GX card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2.5 Internal I/O subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2.5.1 PCI-X slots and adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

2.5.2 LAN adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

2.5.3 Graphic accelerators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

2.5.4 SCSI adapters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

2.6 Internal service processor communications ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

© Copyright IBM Corp. 2004. All rights reserved. iii

2.7 Internal storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

2.7.1 Internal media devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

2.7.2 Internal SCSI disks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

2.7.3 RAID options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

2.8 External I/O subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2.8.1 I/O drawers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2.8.2 7311 Model D20 I/O drawer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2.8.3 7311 I/O drawer’s RIO-2 cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

2.8.4 7311 Model D20 I/O drawer SPCN cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2.8.5 External disk subsystems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2.9 Advanced OpenPower Virtualization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

2.9.1 Logical partitioning and dynamic logical partitioning . . . . . . . . . . . . . . . . . . . . . . . 34

2.9.2 Virtualization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

2.10 Service processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

2.10.1 Service processor base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

2.10.2 Service processor extender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

2.11 Boot process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

2.11.1 IPL flow without an HMC attached to the system . . . . . . . . . . . . . . . . . . . . . . . . 38

2.11.2 Hardware Management Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

2.11.3 IPL flow with an HMC attached to the system. . . . . . . . . . . . . . . . . . . . . . . . . . . 40

2.11.4 Definitions of partitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

2.11.5 Hardware requirements for partitioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

2.11.6 Specific partition definitions used for Micro-Partitioning technology . . . . . . . . . . 42

2.11.7 System Management Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

2.11.8 Boot options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

2.11.9 Additional boot options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

2.11.10 Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

2.12 Operating system requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

2.12.1 Linux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Chapter 3. RAS and manageability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

3.1 Reliability, availability, and serviceability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

3.1.1 Fault avoidance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

3.1.2 First Failure Data Capture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

3.1.3 Permanent monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

3.1.4 Self-healing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

3.1.5 N+1 redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

3.1.6 Fault masking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

3.1.7 Resource deallocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

3.1.8 Serviceability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

3.2 Manageability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

3.2.1 Service processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

3.2.2 Service Agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

3.2.3 OpenPower Customer-Managed Microcode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

3.3 Cluster 1600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Related publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

IBM Redbooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Other publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Online resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

How to get IBM Redbooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Help from IBM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

iv OpenPower 720 Technical Overview and Introduction

Notices

This information was developed for products and services offered in the U.S.A.

IBM may not offer the products, services, or features discussed in this document in other countries. Consult
your local IBM representative for information on the products and services currently available in your area.
Any reference to an IBM product, program, or service is not intended to state or imply that only that IBM
product, program, or service may be used. Any functionally equivalent product, program, or service that does
not infringe any IBM intellectual property right may be used instead. However, it is the user's responsibility to
evaluate and verify the operation of any non-IBM product, program, or service.

IBM may have patents or pending patent applications covering subject matter described in this document. The
furnishing of this document does not give you any license to these patents. You can send license inquiries, in
writing, to:

IBM Director of Licensing, IBM Corporation, North Castle Drive Armonk, NY 10504-1785 U.S.A.

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are inconsistent with local law: INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS

PUBLICATION "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT,
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This information could include technical inaccuracies or typographical errors. Changes are periodically made
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improvements and/or changes in the product(s) and/or the program(s) described in this publication at any time
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materials for this IBM product and use of those Web sites is at your own risk.

IBM may use or distribute any of the information you supply in any way it believes appropriate without
incurring any obligation to you.

Any performance data contained herein was determined in a controlled environment. Therefore, the results
obtained in other operating environments may vary significantly. Some measurements may have been made
on development-level systems and there is no guarantee that these measurements will be the same on
generally available systems. Furthermore, some measurement may have been estimated through
extrapolation. Actual results may vary. Users of this document should verify the applicable data for their
specific environment.

Information concerning non-IBM products was obtained from the suppliers of those products, their published
announcements or other publicly available sources. IBM has not tested those products and cannot confirm the
accuracy of performance, compatibility or any other claims related to non-IBM products. Questions on the
capabilities of non-IBM products should be addressed to the suppliers of those products.

This information contains examples of data and reports used in daily business operations. To illustrate them
as completely as possible, the examples include the names of individuals, companies, brands, and products.
All of these names are fictitious and any similarity to the names and addresses used by an actual business
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COPYRIGHT LICENSE:
This information contains sample application programs in source language, which illustrates programming
techniques on various operating platforms. You may copy, modify, and distribute these sample programs in
any form without payment to IBM, for the purposes of developing, using, marketing or distributing application
programs conforming to the application programming interface for the operating platform for which the sample
programs are written. These examples have not been thoroughly tested under all conditions. IBM, therefore,
cannot guarantee or imply reliability, serviceability, or function of these programs. You may copy, modify, and
distribute these sample programs in any form without payment to IBM for the purposes of developing, using,
marketing, or distributing application programs conforming to IBM's application programming interfaces.

© Copyright IBM Corp. 2004. All rights reserved. v

Trademarks

The following terms are trademarks of the International Business Machines Corporation in the United States,
other countries, or both:

Eserver®

Eserver®

ibm.com®
iSeries™
pSeries®
xSeries®
AIX 5L™
AIX/L®
AIX®
Chipkill™

The following terms are trademarks of other companies:

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Linux is a trademark of Linus Torvalds in the United States, other countries, or both.

Other company, product, and service names may be trademarks or service marks of others.

DB2 Universal Database™
DB2®
Enterprise Storage Server®
Hypervisor™
IBM®
Micro-Partitioning™
OpenPower™
PowerPC®
POWER™
POWER4™

POWER4+™
POWER5™
PS/2®
Redbooks™
RS/6000®
Service Director™
TotalStorage®
UltraNav®

vi OpenPower 720 Technical Overview and Introduction

Preface

This document is a comprehensive guide covering the IBM Sserver® OpenPower 720 Linux
servers. We introduce major hardware offerings and discuss their prominent functions.

Professionals wishing to acquire a better understanding of IBM Sserver OpenPower
products should consider reading this document. The intended audience includes:

򐂰 Customers
򐂰 Sales and marketing professionals
򐂰 Technical support professionals
򐂰 IBM Business Partners
򐂰 Independent software vendors

This document expands the current set of IBM Sserver documentation by providing a
desktop reference that offers a detailed technical description of the OpenPower 720 system.

This publication does not replace the latest IBM Sserver marketing materials and tools. It is
intended as an additional source of information that, together with existing sources, can be
used to enhance your knowledge of IBM server solutions.

The team that wrote this Redpaper

This Redpaper was produced by a team of specialists from around the world working at the
International Technical Support Organization, Austin Center.

Giuliano Anselmi is a certified pSeries Presales Technical Support Specialist working in the
Field Technical Sales Support group based in Rome, Italy. For seven years, he was an IBM
Sserver pSeries Systems Product Engineer, supporting Web Server Sales Organization in
EMEA, IBM Sales, IBM Business Partners, Technical Support Organizations, and IBM Dublin
eServer Manufacturing. Giuliano has worked for IBM for 12 years, devoting himself to
RS/6000® and pSeries systems with his in-depth knowledge of the related hardware and
solutions.

Gregor Linzmeier is an IBM Advisory IT Specialist for RS/6000 and pSeries workstation and
entry servers as part of the Systems and Technology Group in Mainz, Germany supporting
IBM sales, Business Partners, and customers with pre-sales consultation and implementation
of client/server environments. He has worked for more than 13 years as an infrastructure
specialist for RT, RS/6000, and AIX® in large CATIA client/server projects.

Wolfgang Seiwald is an IBM Presales Technical Support Specialist working for the System
Sales Organization in Salzburg, Austria. He holds a Diplomingenieur degree in Telematik
from the Technical University of Graz. The main focus of his work for IBM in the past five
years has been in the areas of the IBM Sserver pSeries systems and the IBM AIX operating
system.

Philippe Vandamme is an IT Specialist working in pSeries Field Technical Support in Paris,
France, EMEA West region. With 15 years of experience in semi-conductor fabrication and
manufacturing and associated technologies, he is now in charge of pSeries Pre-Sales
Support. In his daily role, he supports and delivers training to the IBM and Business Partner
Sales force.

© Copyright IBM Corp. 2004. All rights reserved. vii

The project that produced this document was managed by:

Scott Vetter

IBM U.S.

Thanks to the following people for their contributions to this project:

Ron Arroyo, Barb Hewitt, Thoi Nguyen, Jan Palmer, Charlie Reeves, Craig Shempert, Scott
Smylie, Joel Tendler, Ed Toutant, Jane Arbeitman, Tenley Jackson, Andy McLaughlin, Kathy
Bennett, Raymond Harney, David Boutcher.

IBM U.S.

Volker Haug

IBM Germany

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viii OpenPower 720 Technical Overview and Introduction

Chapter 1. General description

The IBM Sserver OpenPower 720 deskside and rack-mount servers are designed for
greater application flexibility, with innovative technology, designed to help you become an on
demand business. With POWER5 microprocessor technology, the OpenPower 720 is the a
high-performance entry Linux server that, as an orderable option, includes the next
development of the IBM partitioning concept, Micro-Partitioning.

Through the optional POWER Hypervisor feature (FC 1965), LPAR on a 4-way OpenPower
720 (9124-720) allows up to four dedicated partitions. In addition, the POWER Hypervisor
feature enables the support up to 40 Micro-Partitions on a 4-way system. Micro-Partitioning
technology enables multiple partitions to share a physical processor. The POWER Hypervisor
controls dispatching the physical processors to each of the partitions. In addition to
Micro-Partitioning and Virtual Ethernet provided by the POWER Hypervisor, the optional
Virtual I/O Server feature allows sharing of physical network adapters and enables the
virtualization of SCSI storage. Together, these two features are known as Advanced
OpenPower Virtualization.

1

To dynamically manage the resources on a system, and to configure and use Virtual
Ethernet, Shared Ethernet adapters, and Virtual SCSI, an Hardware Management Console is
required.

Simultaneous multi-threading (SMT) is a standard feature of POWER5 technology that allows
two threads to be executed at the same time on a single processor. SMT is selectable with
dedicated or processors from a shared pool using Micro-Partitioning technology.

The symmetric multiprocessor (SMP) OpenPower 720 system features base 1-way or 2-way
(1.5 GHz), 2-way or 4-way (1.65 GHz), 64-bit, copper-based POWER5 microprocessors with
36 MB off-chip Level 3 cache configurations standard on 2-way and 4-way models. Main
memory starting at 512 MB can be expanded up to 64 GB, based on the available DIMMs, for
higher performance and exploitation of 64-bit addressing to meet the demands of enterprise
computing, such as large database applications.

Included with the OpenPower 720 are five hot-plug PCI-X slots with Enhanced Error Handling
(EEH), one embedded Ultra320 SCSI dual-channel controller, one 10/100/1000 Mbps
integrated dual-port Ethernet controller, two service processor communications ports, two

© Copyright IBM Corp. 2004. All rights reserved. 1

USB 2.0 capable ports, two HMC ports, two RIO-2 ports, and two System Power Control
Network (SPCN) ports.

The OpenPower 720 includes four front-accessible, hot-swap-capable disk bays in a minimum
configuration with an additional four hot-swap-capable disk bays orderable as an optional
feature. The eight disk bays can accommodate up to 2.4 TB of disk storage using the 300 GB
Ultra320 SCSI disk drives. Three non hot-swapable media bays are used to accommodate
additional devices. Two media bays only accept slim line media devices, such as DVD-ROM
or DVD-RAM, and one half-height bay is used for a tape drive. The OpenPower 720 also has
I/O expansion capability using the RIO-2 bus, which allows attachment of the 7311 Model
D20 I/O drawers.

Additional reliability and availability features include redundant hot-plug cooling fans and
redundant power supplies. Along with these hot-plug components, the OpenPower 720 is
designed to provide an extensive set of reliability, availability, and serviceability (RAS)
features that include improved fault isolation, recovery from errors without stopping the
system, avoidance of recurring failures, and predictive failure analysis.

2 OpenPower 720 Technical Overview and Introduction

1.1 System specifications

Table 1-1 lists the general system specifications of the OpenPower 720 system.

Table 1-1 OpenPower 720 specifications

Description Range

Operating temperature 5 to 35 degrees Celsius (41 to 95 F)

Relative humidity 8% to 80%

Operating voltage 1-2 way: 100 to 127 or 200 to 240 V AC (auto-ranging)

Operating frequency 47/63 Hz

Maximum power consumption 1100 watts maximum

MAximum thermal output 3754 Btu

British Thermal Unit

a.

1.2 Physical package

The following sections discuss the major physical attributes found on an OpenPower 720 in
rack-mounted and deskside versions (Figure 1-1 on page 4), as shown in Table 1-2. The
OpenPower 720 is a 4U, 19-inch rack-mounted system or deskside system depending on the
feature code selected.

4-way: 200 to 240 V AC

a

/hour (maximum)

Table 1-2 Physical packaging of the OpenPower 720

Dimension Rack (FC 7914) Deskside (FC 7912)

Height 178 mm (7.0 inches) 533 mm (21.1 inches)

Width 437 mm (17.2 inches) 201 mm (7.9 inches)

Depth 731 mm (28.8 inches) 779 mm (30.7 inches)

Minimum configuration 41.4 kg (91 pounds)

Maximum configuration 57.0 kg (125 pounds)

Chapter 1. General description 3

Figure 1-1 Rack-mount and deskside versions of the OpenPower 720

1.2.1 IBM eServer OpenPower 720 deskside

The OpenPower 720 is available as a deskside server that is ideal for environments requiring
the user to have local access to the hardware. A typical example of this would be applications
requiring a native graphics display.

To order an OpenPower 720 system as a deskside version, FC 7912 is required. The system
is designed to be set up by the customer and, in most cases, will not require the use of any
tools. Full set-up instructions are included with the system.

The GXT135P 2D graphics accelerator with analog and digital interfaces (FC 2849) is
available and is supported for SMS, firmware menus, and other low-level functions, as well as
when AIX or Linux starts the X11-based graphical user interface. Graphical AIX system tools
are usable for configuration management if the adapter is connected to the primary console,
such as the IBM L200p Flat-Panel Monitor (FC 3636), the IBM T541H 15-inch TFT Color
Monitor (FC 3637), or others.

1.2.2 IBM eServer OpenPower 720 rack-mounted

The OpenPower 720 is available as a 4U rack-mounted server and is intended to be installed
in a 19-inch rack, thereby enabling efficient use of computer room floor space. If the IBM
7014-T42 rack is used to mount the OpenPower 720, it is possible to place up to 10 systems
in an area of 644 mm (25.5 inches) x 1147 mm (45.2 inches).

To order an OpenPower 720 system as a rack-mounted version, FC 7914 is required.The
OpenPower 720 can be installed in IBM or OEM racks. Therefore you are required to select
one of the following features:

򐂰 IBM Rack-mount Drawer Rail Kit (FC 7162)
򐂰 OEM Rack-mount Drawer Rail Kit (FC 7163)

Included with the OpenPower 720 rack-mounted server packaging are all of the components
and instructions necessary to enable installation in a 19-inch rack using suitable tools.

4 OpenPower 720 Technical Overview and Introduction

The GXT135P 2D graphics accelerator with analog and digital interfaces (FC 2849) is
available and is supported for SMS, firmware menus, and other low-level functions, as well as
when Linux starts the X11-based graphical user interface. Graphical system tools are usable
for configuration management if the adapter is connected to a common maintenance console,
such as the 7316-TF3 Rack-Mounted Flat-Panel display.

Figure 1-2 shows the basic ports available on the OpenPower 720.

Figure 1-2 Detailed views of the OpenPower 720 rack-mount system

1.3 Minimum and optional features

The OpenPower 720 system is based on a flexible, modular design, and it features:
򐂰 Up to two processor books using the POWER5 chip, for a 1-way, 2-way, or 4-way

configurations

򐂰 From 512 MB to 64 GB of total system memory capacity using DDR1 DIMM technology
򐂰 Four SCSI disk drives in a minimum configuration, eight SCSI disk drives with an optional

second 4-pack enclosure for an internal storage capacity of 2.4 TB using 300 GB drives

򐂰 Four PCI-X slots and 1 GX+ slot or five PCI-X slots
򐂰 Two slim-line media bays for optional storage devices
򐂰 One half-high bay for an optional tape device

The OpenPower 720, including the service processor (SP) described in 2.10.1, “Service
processor base” on page 38, supports the following native ports:

򐂰 Two 10/100/1000 Ethernet ports
򐂰 Two service processor communications ports

Chapter 1. General description 5

򐂰 Two USB 2.0 ports
򐂰 Two HMC ports
򐂰 Two remote I/O (RIO-2) ports
򐂰 Two SPCN ports

In addition, the OpenPower 720 features one internal Ultra320 SCSI dual channel controller,
redundant hot-swap power supply (optional), cooling fans, and up to two processor power
regulators.

The system supports 32-bit and 64-bit applications.

1.3.1 Processor card features

The OpenPower 720 accommodates 1 and 2-way processor cards with state-of-the-art,
64-bit, copper-based, POWER5 microprocessors running at 1.5 GHz on 1-way, 1.5 GHz
2-way, and 1.65 GHz 2-way cards that share 1.9 MB of L2 on chip cache and eight slots for
memory DIMMS using DDR1 technology. 36 MB of L3 cache is available on the 2-way cards.
Capacity on Demand (CoD) is not available on the OpenPower 720. For a list of available
cards; see Table 1-3.

An initial order must have at least one processor card. Only a single 1-way card may be
present on any system, and cards with mixed clock rates cannot be installed on the same
system.

Table 1-3 Processor card and feature codes

Processor card FC Description

1960 1-way 1.5 GHz, no L3 cache, eight DDR1 DIMM sockets

1961 2-way 1.5 GHz, 36 MB L3 cache, eight DDR1 DIMM sockets

5262 2-way 1.65 GHz, 36 MB L3 cache, eight DDR1 DIMM sockets

1.3.2 Memory features

The processor cards used in the OpenPower 720 system have eight sockets for memory
DIMMs. Memory can be installed in pairs (feature numbers 1936, 1949, 1950, 1951, and

1952) or quads (feature numbers 1937, 1938, 1939, 1940, 1942, and 1945). Table 1-4 lists
the available memory features.

Table 1-4 Memory feature codes

Feature code Description

1936 0.5 GB (2x 256 MB) DIMMs, 250 MHz, DDR1 SDRAM

1937 1 GB (4x 256 MB) DIMMs, 250 MHz, DDR1 SDRAM

1938 2 GB (4x 512 MB), DIMMs, 250 MHz, DDR1 SDRAM

1940 4 GB (4x 1024 MB) DIMMs, 250 MHz, DDR1 SDRAM

1942 8 GB (4x 2048 MB) DIMMs, 250 MHz, DDR1 SDRAM

1945 16 GB (4x 4096 MB) DIMMs, 250 MHz, DDR1 SDRAM

1949 1GB (2x 512 MB) DIMMs, 266 MHz, DDR1 SDRAM

1950 2GB (2x 1024 MB) DIMMs, 266 MHz, DDR1 SDRAM

6 OpenPower 720 Technical Overview and Introduction

Feature code Description

1951 4GB (2x 2048 MB) DIMMs, 266 MHz, DDR1 SDRAM

1952 8GB (2x 4096 MB) DIMMs, 266 MHz, DDR1 SDRAM

It is recommended that each processor card (if more than a single card is present) have an
equal amount of memory installed. Balancing memory across the installed processor cards
allows distributed memory accesses that provide optimal performance. The memory
controller will detect a variety of memory configurations of mixed memory sized DIMMs and
DIMMs installed in pairs.

1.3.3 Disk and media features

The minimum OpenPower 720 configuration includes a 4-pack disk drive enclosure. A second
4-pack disk drive enclosure can be installed by ordering FC 6592 (integrated controller
driven) or FC 6593 (additional adapter driven); therefore, the maximum internal storage
capacity is 2.4 TB (using the disk drive features available at the time of writing). The
OpenPower 720 also features two slim-line media device bays and one half-height media bay.
The minimum configuration requires at least one disk drive. Table 1-5 shows the disk drive
feature codes that each bay can contain.

Table 1-5 Disk drive feature code description

Feature code Description

1970 36.4 GB 15 K RPM Ultra3 SCSI disk drive assembly

1968 73.4 GB 10 K RPM Ultra3 SCSI disk drive assembly

1971 73.4 GB 15 K RPM Ultra3 SCSI disk drive assembly

1969 146.8 GB 10 K RPM Ultra3 SCSI disk drive assembly

1972 146.8 GB 15 K RPM Ultra3 SCSI disk drive assembly

1973 300 GB 10 K RPM Ultra3 SCSI disk drive assembly

Any combination of DVD-ROM and DVD-RAM drives of the following devices can be installed
in the two slim-line bays:

򐂰 DVD-RAM drive, FC 1993
򐂰 DVD-ROM drive, FC 1994

A logical partition running a supported release of the Linux operating system requires a
DVD-ROM drive or DVD-RAM drive to provide a way to boot hardware diagnostics from CD.

Supplementary devices can be installed in the half-height media bay, such as:

򐂰 IBM 80/160 GB Internal Tape Drive with VXA Technology, FC 1992
򐂰 60/150 GB 16-bit 8 mm Internal Tape Drive, FC 6134
򐂰 36/72 GB 4 mm Internal Tape Drive, FC 1991

1.3.4 USB diskette drive

For today’s administration tasks, an internal diskette drive is not state-of-the-art. In some
situations, the external USB 1.44 MB diskette drive for OpenPower 720 systems (FC 2591) is
helpful. This super-slim-line and lightweight USB V2 attached diskette drive takes its power
requirements from the USB port. A USB cable is provided. The drive can be attached to the

Chapter 1. General description 7

integrated USB ports, or to a USB adapter (FC 2738). A maximum of one USB diskette drive
is supported per integrated controller/adapter. The same controller can share a USB mouse
and keyboard.

1.3.5 I/O drawers

The OpenPower 720 has five internal PCI-X slots, where four of them are long slots and one
is a short slot. If more PCI-X slots are needed, especially well-suited to extend the number of
LPARs and Micro-Partitions, up to eight Model 7311 Model D20 I/O drawers can be attached
to the rack-mount OpenPower system. Up to four Model D20 drawers can be connected to the
two RIO-2 ports on the rear of the system that are provided in a minimum configuration. An
additional four Model D20s can be connected by ordering the Remote I/O expansion card (FC

1806). It provides two RIO-2 ports located on a interposer card that occupies the short PCI-X
slot.

Note: 7311-D20 is the only supported I/O drawer for the OpenPower 720.

7311 Model D20 I/O drawer

The 7311 Model D20 I/O drawer is a 4U full-size drawer, which must be mounted in a rack. It
features seven hot-pluggable PCI-X slots and optionally up to 12 hot-swappable disks
arranged in two 6-packs. Redundant, concurrently maintainable power and cooling is an
optional feature (FC 6268). The 7311 Model D20 I/O drawer offers a modular growth path for
the OpenPower 720 system with increasing I/O requirements. When a OpenPower 720 is fully
configured with eight attached 7311 Model D20 drawers, the combined system supports up to
61 PCI-X adapters (in a full configuration, Remote I/O expansion cards are required) and
104 hot-swappable SCSI disks.

PCI-X and PCI cards are inserted from the top of the I/O drawer down into the slot. The
installed adapters are protected by plastic separators, designed to prevent grounding and
damage when adding or removing adapters.

The drawer has the following attributes:

򐂰 4U rack-mount enclosure assembly
򐂰 Seven PCI-X slots 3.3 volt, keyed, 133 MHz hot-pluggable
򐂰 Two 6-pack hot-swappable SCSI devices
򐂰 Optional redundant hot-plug power
򐂰 Two RIO-2 ports and two SPCN ports

Note: The 7311 Model D20 I/O drawer initial order, or an existing 7311 Model D20 I/O
drawer that is migrated from another system, must have the RIO-2 ports available
(FC 6417).

7311 Model D20 I/O drawer physical package

The I/O drawer has the following physical characteristics:

򐂰 Width: 482 mm (19.0 inches)
򐂰 Depth: 610 mm (24.0 inches)
򐂰 Height: 178 mm (7.0 inches)
򐂰 Weight: 45.9 kg (101 pounds)

Figure 1-3 on page 9 shows the different views of the 7311-D20 I/O drawer.

8 OpenPower 720 Technical Overview and Introduction

Operator panel

Adapters

Service
Access

I/O
Drawer

Front Rear

Power supply 2

Power supply 1

RIO ports

1 2 3 4 5 6 7

8 9 A B C D 8 9 A B C D

SCSI disk locations and IDs

Figure 1-3 7311-D20 I/O drawer

Note: The 7311 Model D20 I/O drawer is designed to be installed by an IBM service
representative.

I/O drawers and usable PCI slots

Only the 7311 Model D20 I/O drawer is supported on an OpenPower 720 system. Depending
on the system configuration, the maximum number of I/O drawers supported is different.
Table 1-6 summarizes the maximum number of I/O drawers supported and the total number
of PCI-X slots available.

Table 1-6 Maximum number of I/O drawers supported and total number of PCI slots

OpenPower 720 Max number of I/O drawers Total number of PCI-X slots

Minimum configuration 4 28 + 5

Additional FC 1806 8 56 + 4 (excluding used slot)

1.3.6 Hardware Management Console models

Reserved ports

SPCN ports

Rack indicator

PCI-X slots

The Hardware Management Console (HMC) provides a set of functions that is necessary to
manage the OpenPower system when dynamic LPAR, Micro-Partitioning, Virtual Ethernet,
Virtual SCSI, inventory and remote microcode management, and remote power control
functions are needed. These functions include the handling of the partition profiles that define
the processor, memory, and I/O resources allocated to an individual partition. The HMC is
required when the Virtual I/O Server or the POWER Hypervisor features are ordered.

The 7310 Model CR3 or the 7310 Model C04 HMCs are specifically for POWER5
processor-based systems. However, an existing 7315 POWER4 processor-based systems

Chapter 1. General description 9

HMCs can be converted for POWER5 processor-based systems use when it is loaded with
the HMC software required for POWER5 processor-based systems (FC 0961).

To upgrade an existing POWER4 HMC:
򐂰 Order FC 0961 for your existing HMC. Please contact your IBM Sales Representative for

help.

򐂰 Call you local IBM Service Center and order APAR MB00691.
򐂰 Order the CD online selecting Version 4.4 machine code updates. Go to the Hardware

Management Console Support for IBM Sserver i5, p5, pSeries, iSeries, and OpenPower
Web page at:

https://techsupport.services.ibm.com/server/hmc/power5

Note: You must have an IBM ID to use this freely available service. Registration
information and online registration form can be found at the Web page mentioned above.

POWER5 processor-based system HMCs require Ethernet connectivity. Ensure that sufficient
Ethernet adapters are available to enable public and private networks if you need both. The
7310 Model C04 is a desktop model with only one native 10/100/1000 Ethernet port, but three
additional PCI slots. The 7310 Model CR3 is a 1U, 19-inch rack mountable drawer that has
two native Ethernet ports and two additional PCI slots.

When an HMC is connected to the OpenPower 720, the integrated service processor
communications ports are disabled. If you need serial connections, you need to provide an
async adapter.

Note: It is not possible to connect POWER4 and POWER5 processor-based systems
simultaneously to the same HMC.

1.4 Express Product Offerings

New specially priced Express Product Offerings are now available for the OpenPower 720
servers. These Express Product Offerings feature popular, easy-to-order preconfigured
servers with attractive financial incentives. Express Product Offerings are available only as an
initial order.

OpenPower Express servers are complemented by pre-tested solutions that provide
recommended system configurations with installation and sizing aids, for a range of business
requirements. Built on the solid base of OpenPower servers, the Linux operating system, and
popular application software packages, these offerings are designed to help smaller and
mid-sized companies solve a variety of business problems - application consolidation, e-mail
security, and infrastructure for Enterprise Resource Planning (ERP).

Available solutions include:

򐂰 IBM Eserver OpenPower Network E-Mail Security Express Solution
򐂰 IBM Eserver OpenPower and IBM DB2 Universal Database™ for SAP Solution
򐂰 IBM Eserver OpenPower Consolidation Express Solution

Express Product Offerings consist of the following processor requirements, either a two-way
POWER5 1.5 GHz processor (FC 1943) or two-way POWER5 1.65 GHz processor (FC 1944)
or two two-way POWER5 1.65 GHz processor (2 x FC 1944)z, and a defined minimum
configuration. You can make changes to the standard features as needed and still qualify;

10 OpenPower 720 Technical Overview and Introduction

however, selection of features smaller than those defined as the minimums disqualify the
order as an Express Product Offering. If any of the features in an Express Product Offering is
changed, the Express Product Offering identification feature (FC 935X) will be removed from
the order.

Table 1-7 lists the available Express Product Offerings configurations and minimum
requirements.

Table 1-7 Express Product Offerings configurations

Express
Offering

Identifier

Entry

Deskside 9351

Entry Rack

9352

Value Rack

9353

Performance

Rack 9254

Consolidation

b

Rack

9355

a. SKU Identifier = Stock Keeping Unit Identifier
b. The Consolidation Offering includes 4 x FC 1965 (POWER Hypervisor and Virtual I/O Server)
as a minimum requirement

Processors Memory (MB) Disk Configuratio

2-way, FC 1943, 1.5 GHz 1 x 2048

(FC 1950)

2-way, FC 1943, 1.5 GHz 2 x 2048

(FC 1950)

2-way, FC 1944, 1.65 GHz 2 x 2048

(FC 1950)

2 x 2-way, FC 1943,

1.5 GHz

2 x 2-way, FC 1944,

1.65 GHz

4 x 2048

(FC 1950)

2 x 4096

(FC 1951)

2 x 73.4 GB disk

drive, FC 1968

2 x 73.4 GB disk

drive, FC 1968

2 x 73.4 GB disk

drive, FC 1968

4 x 73.4 GB disk

drive, FC 1968

4 x 73.4 GB disk

drive, FC 1971

The Express Product Offerings also includes:

򐂰 DVD-ROM (FC1994)
򐂰 IBM Rack-mount drawer bezel and hardware (FC 7998)
򐂰 Rack-mount drawer rail kit (FC 7166)

n Number

(SKU)

91241D1

91241D2

91241D3

91241D4

91241D5

a

򐂰 Power supply, 700 watt (FC 7989)
򐂰 DVD-ROM (FC 1994)
򐂰 Language group specify (FC 9300 or 97xx)
򐂰 Power cord

Note: Keyboard, mouse, operating system (OS) license, and OS media are not included in
these configurations.

Note: If a build-to-order (BTO) configuration meets all the requirements of an OpenPower
Express configuration, Express configuration pricing will be applied.

When an OpenPower Express configuration is ordered, the nine-digit reference number
called a SKU Identifier will be printed on the packing list and on a label (readable and
barcode) on the outside of the box. Also it will appear on invoices and billing statements. The
SKU Identifier helps improve IBM Distributors’ inventory management. The SKU Identifier
numbers for OpenPower Express configurations are listed in Table 1-7 above.

Chapter 1. General description 11

Note: Only Express Product Offerings configurations will have SKU Identifiers. No BTO
configuration even if it meets the definition of an Express Product Offering configuration will
have SKU Identifier. Any modifications to an Express hardware configuration will suppress
the SKU Identifier.

1.5 System racks

The Enterprise Rack Models T00 and T42 are 19-inch wide racks for general use with
IBM Sserver OpenPower, p5, pSeries, and RS/6000 rack-based or rack drawer-based
systems. The racks provide increased capacity, greater flexibility, and improved floor space
utilization.

The OpenPower 720 uses a 4U rack-mounted server drawer.

If an OpenPower 720 system is to be installed in a non-IBM rack or cabinet, you should
ensure that the rack conforms to the EIA

1

standard EIA-310-D (see 1.5.6, “OEM rack” on

page 16).

Note: It is the customer’s responsibility to ensure that the installation of the drawer in the
preferred rack or cabinet results in a configuration that is stable, serviceable, safe, and
compatible with the drawer requirements for power, cooling, cable management, weight,
and rail security.

1.5.1 IBM RS/6000 7014 Model T00 Enterprise Rack

The 1.8-meter (71 inch) Model T00 is compatible with past and present OpenPower, p5,
pSeries, and RS/6000 racks and is designed for use in all situations that have previously used
the older rack models R00 and S00. The T00 rack has the following features:

򐂰 36 EIA units (36U) of usable space.
򐂰 Optional removable side panels.
򐂰 Optional highly perforated front door.
򐂰 Optional side-to-side mounting hardware for joining multiple racks.
򐂰 Standard black or optional white color in OEM format.
򐂰 Increased power distribution and weight capacity.
򐂰 An optional reinforced (ruggedized) rack feature (FC 6080) provides added earthquake

protection with modular rear brace, concrete floor bolt-down hardware, and bolt-in steel
front filler panels.

򐂰 Support for both AC and DC configurations.
򐂰 DC rack height is increased to 1926 mm (75.8 inches) if a power distribution panel is fixed

to the top of the rack.

򐂰 Up to four Power Distribution Units (PDUs) can be mounted in the proper bays, but others

can fit inside the rack. See 1.5.3, “AC Power Distribution Unit and rack content” on
page 13.

򐂰 Optional rack status beacon (FC 4690). This beacon is designed to be placed on top of a

rack and cabled to servers, such as a OpenPower 720, and other components, such as a

1

Electronic Industries Alliance (EIA). Accredited by American National Standards Institute (ANSI), EIA provides a

forum for industry to develop standards and publications throughout the electronics and high-tech industries.

12 OpenPower 720 Technical Overview and Introduction

7311 I/O drawer, inside the rack. Servers can be programmed to illuminate the beacon in
response to a detected problem or changes in system status.

򐂰 A rack status beacon junction box (FC 4693) should be used to connect multiple servers

and I/O drawers to the beacon. This feature provides six input connectors and one output
connector for the rack. To connect the servers or other components to the junction box or
the junction box to the rack, status beacon cables (FC 4691) are necessary. Multiple
junction boxes can be linked together in a series using daisy chain cables (FC 4692).

򐂰 Weight:

T00 base empty rack: 244 kg (535 pounds)
T00 full rack: 816 kg (1795 pounds)

1.5.2 IBM RS/6000 7014 Model T42 Enterprise Rack

The 2.0-meter (79.3-inch) Model T42 is the rack that will address the special requirements of
customers who want a tall enclosure to house the maximum amount of equipment in the
smallest possible floor space. The features that differ in the Model T42 rack from the Model
T00 include the following:

򐂰 42 EIA units (42U) of usable space
򐂰 AC power support only
򐂰 Weight:

– T42 base empty rack: 261 kg (575 pounds)
– T42 full rack: 930 kg (2045 pounds)

1.5.3 AC Power Distribution Unit and rack content

For rack models T00 and T42, 12-outlet PDUs (FC 9188 and FC 7188) are available.

Four PDUs can be mounted vertically in the 7014 racks. See Figure 1-4 for placement of the
four vertically mounted PDUs. In the rear of the rack, two additional PDUs can be installed
horizontally in the T00 and three in the T42 rack. The four vertical mounting locations will be
filled first. Mounting PDUs horizontally consumes 1U per PDU and reduces the space
available for other racked components. When mounting PDUs horizontally, it is recommended
that fillers be used in the EIA units occupied by these PDUs to facilitate proper air-flow and
ventilation in the rack.

For detailed power cords requirements and power cord feature codes, see the publication

IBM Eserver Planning Information, SA38-0508. An online copy can be found at Maps of
pSeries books to the information center → Planning → Printable PDFs → Planning:

http://publib16.boulder.ibm.com/infocenter/eserver/v1r2s/en_US/index.htm

Note: Ensure the appropriate power cord feature is configured to support the power being
supplied.

The Base/Side Mount Universal PDU (FC 9188) and the optional, additional, Universal PDU
(FC 7188), support a wide range of country requirements and electrical power specifications.
It receives power through a UTG0247 connector. Each PDU requires one PDU to wall power
cord. Nine power cord features are available for different countries and applications by
varying the PDU to Wall Power Cord, which must be ordered separately. Each power cord
provides the unique design characteristics for the different power requirements. To match new

Chapter 1. General description 13