IBM Power Systems H922 and H924 Technical Overview and Introduction

A draft IBM Redpaper publication

Updated 20 July 2018

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ISBN-10: 0738457000
ISBN-13: 9780738457000
IBM Form #: REDP-5498-00

Authors: Scott Vetter, Young Hoon Cho, Gareth Coates, Bartlomiej Grabowski


This IBM® Redpaper™ publication is a comprehensive guide covering the IBM Power System H924(9223-42H), and IBM Power System H922 (9223-22H) servers that support memory-intensive workloads like SAP HANA and deliver superior price/performance for mission-critical application in IBM AIX®, IBM i, and Linux operating systems. The objective of this paper is to introduce the major innovative Power H924, Power H922 offerings and their relevant functions:

  • The new IBM POWER9™ processor, available at frequencies of 2.8 to 3.8 GHz, 2.9 to 3.8 GHz, 2.8 to 3.8 GHz, 3.4 to 3.9 GHz, 3.5 to 3.9 GHz, 3.8 to 4.0 GHz
  • Significantly strengthened cores and larger caches
  • Two integrated memory controllers which allow doubled the memory footprint of POWER8 servers
  • Integrated I/O subsystem and hot-pluggable PCIe Gen4 and Gen3 I/O slots
  • I/O drawer expansion options offers greater flexibility
  • Support for CAPI 2.0
  • New feature IBM EnergyScale™ technology provides new variable processor frequency modes that provide a significant performance boost beyond the static nominal frequency

This publication is for professionals who want to acquire a better understanding of IBM Power Systems™ products. The intended audience includes the following roles:

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

This paper expands the current set of IBM Power Systems documentation by providing a desktop reference that offers a detailed technical description of the Power H922 and Power H924 system.

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

Chapter 1. General description
Chapter 2. Architecture and technical overview
Chapter 3. Virtualization

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