Front cover IBM Power Systems S922, S914, and S924 Technical Overview and Introduction Young Hoon Cho Gareth Coates Bartlomiej Grabowski Redpaper International Technical Support Organization IBM Power Systems S922, S914, and S924: Technical Overview and Introduction July 2018 REDP-5497-00 Note: Before using this information and the product it supports, read the information in “Notices” on page vii. First Edition (July 2018) This edition applies to IBM Power Systems S922, S914, and S924, machine types and model numbers 9009-22A, 9009-41A, and 9009-42A. © Copyright International Business Machines Corporation 2018. 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 . vii Trademarks . viii Preface . ix Authors. ix Now you can become a published author, too! . .x Comments welcome. .x Stay connected to IBM Redbooks . xi Chapter 1. General description . 1 1.1 Systems overview . 2 1.1.1 Power S922 server . 2 1.1.2 Power S914 server . 3 1.1.3 Power S924 server . 4 1.1.4 Common features . 5 1.2 Operating environment . 6 1.3 Physical package . 8 1.3.1 Tower model . 8 1.3.2 Rack-mount model . 8 1.4 System features . 9 1.4.1 Power S922 server features . 9 1.4.2 Power S914 server features . 10 1.4.3 Power S924 server features . 11 1.4.4 Minimum features . 13 1.4.5 Power supply features . 13 1.4.6 Processor module features . 14 1.4.7 Memory features . 16 1.4.8 Peripheral Component Interconnect Express slots. 17 1.5 Disk and media features . 17 1.6 I/O drawers for Power S922, Power S914, and Power S924 servers. 29 1.6.1 PCIe Gen3 I/O expansion drawer . 30 1.6.2 I/O drawers and usable PCI slots . 31 1.6.3 EXP24SX (#ESLS) and EXP12SX (#ESLL) SAS Storage Enclosures. 33 1.7 IBM i Solution Editions for Power S914 . 34 1.8 IBM Capacity BackUp . 35 1.8.1 Power S922 (9009-22A) IBM Capacity BackUp offering. 35 1.8.2 Power S914 (9009-41A) IBM Capacity BackUp offering. 36 1.8.3 Power S924 (9009-42A) IBM Capacity BackUp offering. 38 1.9 System racks. 39 1.9.1 IBM 7014 Model T00 rack. 40 1.9.2 IBM 7014 Model T42 rack. 41 1.9.3 IBM 42U Slim Rack 7965-94Y . 42 1.9.4 1.8 Meter Rack (#0551) . 42 1.9.5 2.0 Meter Rack (#0553) . 43 1.9.6 Rack (#ER05) . 43 1.9.7 The AC power distribution unit and rack content . 43 1.9.8 Rack-mounting rules . 46 1.9.9 Useful rack additions. 46 1.9.10 Original equipment manufacturer racks . 49 © Copyright IBM Corp. 2018. All rights reserved. iii 1.10 Hardware Management Console . 50 1.10.1 New features. 50 1.10.2 Hardware Management Console overview . 50 1.10.3 Hardware Management Console code level . 52 1.10.4 Two architectures of Hardware Management Console. 52 1.10.5 Hardware Management Console connectivity to POWER9 processor-based systems. 53 1.10.6 High availability Hardware Management Console configuration. 54 Chapter 2. Architecture and technical overview . 57 2.1 The IBM POWER9 processor . 61 2.1.1 POWER9 processor overview. 61 2.1.2 POWER9 processor features . 62 2.1.3 POWER9 processor core . 62 2.1.4 Simultaneous multithreading. 63 2.1.5 Processor feature codes . 64 2.1.6 Memory access. 65 2.1.7 On-chip L3 cache innovation and intelligent caching . 66 2.1.8 Hardware transactional memory . 67 2.1.9 Coherent Accelerator Processor Interface 2.0 . 67 2.1.10 Power management and system performance . 69 2.1.11 Comparison of the POWER9, POWER8, and POWER7+ processors . 69 2.2 Memory subsystem . 70 2.2.1 Memory placement rules. 71 2.2.2 Memory bandwidth . 75 2.3 System bus . 78 2.4 Internal I/O subsystem . 79 2.4.1 Slot configuration . 79 2.4.2 System ports . ..