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Book Description

This IBM® Redpaper™ publication is a comprehensive guide that covers the IBM Power System AC922 server (8335-GTG and 8335-GTW models). The Power AC922 server is the next generation of the IBM Power processor-based systems, which are designed for deep learning 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 16 cores at 2.6 GHz with 3.09 GHz turbo performance or 20 cores at 2.0 GHz with 2.87 GHz turbo for the 8335-GTG
  • Eighteen cores at 2.98 GHz with 3.26 GHz turbo performance or 22 at 2.78 GHz cores with 3.07 GHz turbo for the 8335-GTW
  • IBM Coherent Accelerator Processor Interface (CAPI) 2.0, IBM OpenCAPI™, and second-generation NVIDIA NVLink technology for exceptional processor-to-accelerator intercommunication
  • Up to six dedicated NVIDIA Tesla V100 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 8335-GTG
      2. 1.2.2 Power AC922 server model 8335-GTW
      3. 1.2.3 Minimum features
  5. Chapter 2. System architecture
    1. 2.1 System architecture
    2. 2.2 Processor subsystem
      1. 2.2.1 POWER9 processor overview
      2. 2.2.2 Processor feature codes
    3. 2.3 Memory subsystem
      1. 2.3.1 Memory features and placement rules
      2. 2.3.2 Memory bandwidth
    4. 2.4 I/O subsystem
      1. 2.4.1 PCIe
      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 InfiniBand adapters
      5. 2.5.5 Compute-intensive accelerators
      6. 2.5.6 Flash storage adapters
    6. 2.6 System ports
    7. 2.7 Internal storage
      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
    11. 2.11 Operating system support
      1. 2.11.1 Ubuntu
      2. 2.11.2 Red Hat Enterprise Linux
      3. 2.11.3 More information
    12. 2.12 Java
  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 OEM racks
  7. Related publications
    1. IBM Redbooks
    2. Online resources
    3. Help from IBM
  8. Back cover
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