IBM Power System AC922 Technical Overview and Introduction

IBM Power System AC922 Technical Overview and Introduction

by Scott Vetter, Volker Haug, Ritesh Nohria, Gustavo Santos
Released May 2023
Publisher(s): IBM Redbooks
ISBN: 9780738457024

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Book description

This IBM® Redpaper™ publication is a comprehensive guide that covers the IBM Power System AC922 server (8335-GTH and 8335-GTX models). The Power AC922 server is the next generation of the IBM POWER® processor-based systems, which are designed for deep learning (DL) and artificial intelligence (AI), high-performance analytics, and high-performance computing (HPC).

This paper introduces the major innovative Power AC922 server features and their relevant functions:


  • Powerful IBM POWER9™ processors that offer up to 22 cores at up to 2.80 GHz (3.10 GHz turbo) performance with up to 2 TB of memory.
  • IBM Coherent Accelerator Processor Interface (CAPI) 2.0, IBM OpenCAPI™, and second-generation NVIDIA NVLink 2.0 technology for exceptional processor to accelerator intercommunication.
  • Up to six dedicated NVIDIA Tesla V100 graphics processing units (GPUs).

This publication is for professionals who want to acquire a better understanding of IBM Power Systems™ products and is intended for the following audiences:

  • Clients
  • Sales and marketing professionals
  • Technical support professionals
  • IBM Business Partners
  • Independent software vendors (ISVs)

This paper expands the set of IBM Power Systems documentation by providing a desktop reference that offers a detailed technical description of the Power AC922 server.

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

Table of contents

  1. Front cover
  2. Notices
    1. Trademarks
  3. Preface
    1. Authors
    2. Now you can become a published author, too!
    3. Comments welcome
    4. Stay connected to IBM Redbooks
  4. Chapter 1. Product summary
    1. 1.1 Key server features
    2. 1.2 Server models
      1. 1.2.1 Power AC922 server model GTH
      2. 1.2.2 Power AC922 server model GTX
      3. 1.2.3 Minimum features
  5. Chapter 2. System architecture
    1. 2.1 Power AC922 server architecture
    2. 2.2 Processor subsystem
      1. 2.2.1 POWER9 processor overview
      2. 2.2.2 Processor features
      3. 2.2.3 Supported technologies
      4. 2.2.4 Processor feature codes
    3. 2.3 Memory subsystem
      1. 2.3.1 Memory feature codes and placement rules
      2. 2.3.2 Memory bandwidth
    4. 2.4 I/O subsystem
      1. 2.4.1 PCI Express Controller
      2. 2.4.2 IBM CAPI2
      3. 2.4.3 OpenCAPI
      4. 2.4.4 The NVIDIA Tesla V100
      5. 2.4.5 NVLink 2.0
    5. 2.5 PCI adapters
      1. 2.5.1 Slot configuration
      2. 2.5.2 Local area network adapters
      3. 2.5.3 Fibre Channel adapters
      4. 2.5.4 CAPI-enabled adapters
      5. 2.5.5 Compute-intensive accelerators
      6. 2.5.6 Flash storage adapters
    6. 2.6 System ports
    7. 2.7 Internal disks
      1. 2.7.1 Disk and media features
    8. 2.8 External I/O subsystems
    9. 2.9 Location codes
    10. 2.10 IBM System Storage
      1. 2.10.1 IBM Flash Storage
      2. 2.10.2 Software-defined storage
      3. 2.10.3 Hybrid storage
      4. 2.10.4 Storage area network
    11. 2.11 Operating system support
      1. 2.11.1 Ubuntu
      2. 2.11.2 Red Hat Enterprise Linux
    12. 2.12 Java
    13. 2.13 Reliability, availability, and serviceability
      1. 2.13.1 Error handling
      2. 2.13.2 Serviceability
  6. Chapter 3. Physical infrastructure
    1. 3.1 Operating environment
      1. 3.1.1 Leak detection
      2. 3.1.2 Water pressure
    2. 3.2 Physical package
    3. 3.3 System power
    4. 3.4 System cooling
    5. 3.5 Rack specifications
      1. 3.5.1 IBM Enterprise Slim Rack 7965-S42
      2. 3.5.2 AC power distribution units
      3. 3.5.3 Rack-mounting rules
      4. 3.5.4 Original equipment manufacturer racks
  7. Appendix A. IBM PowerAI
    1. Deep learning frameworks requirements
    2. IBM PowerAI Vision
    3. Distributed Deep Learning
    4. Large model support
    5. Software download
    6. IBM PowerAI Enterprise
    7. High-performance computing
  8. Related publications
    1. IBM Redbooks
    2. Online resources
    3. Help from IBM
  9. Back cover

Product information

  • Title: IBM Power System AC922 Technical Overview and Introduction
  • Author(s): Scott Vetter, Volker Haug, Ritesh Nohria, Gustavo Santos
  • Release date: May 2023
  • Publisher(s): IBM Redbooks
  • ISBN: 9780738457024