Front cover IBM Power Systems S814 and S824 Technical Overview and Introduction Outstanding performance based on POWER8 processor technology 4U scale-out desktop and rack-mount servers Improved reliability, availability, and serviceability features Alexandre Bicas Caldeira Bartłomiej Grabowski Volker Haug Marc-Eric Kahle Andrew Laidlaw Cesar Diniz Maciel Monica Sanchez Seulgi Yoppy Sung ibm.com/redbooks Redpaper International Technical Support Organization IBM Power System S814 and S824 Technical Overview and Introduction August 2014 REDP-5097-00 Note: Before using this information and the product it supports, read the information in “Notices” on page vii. First Edition (August 2014) This edition applies to IBM Power System S814 (8286-41A) and IBM Power System S824 (8286-42A) systems. © Copyright International Business Machines Corporation 2014. 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! . xi Comments welcome. xi Stay connected to IBM Redbooks . xii Chapter 1. General description . 1 1.1 Systems overview . 2 1.1.1 Power S814 server . 2 1.1.2 Power S824 server . 3 1.2 Operating environment . 4 1.3 Physical package . 5 1.3.1 Tower model . 5 1.3.2 Rack-mount model . 6 1.4 System features . 8 1.4.1 Power S814 system features . 8 1.4.2 Power S824 system features . 9 1.4.3 Minimum features . 10 1.4.4 Power supply features . 10 1.4.5 Processor module features . 10 1.4.6 Memory features . 11 1.4.7 PCIe slots . 12 1.5 Disk and media features . 13 1.6 I/O drawers for Power S814 and Power S824 servers . 20 1.6.1 PCIe Gen3 I/O expansion drawer . 21 1.6.2 I/O drawers and usable PCI slot . 22 1.6.3 EXP24S SFF Gen2-bay drawer . 23 1.7 IBM i Solution Edition for Power S814 and Power S824. 24 1.8 Capacity backup . 24 1.8.1 Power System S814 (8286-41A) capacity backup offering. 24 1.8.2 Power System S824 (8286-42A) capacity backup capability . 26 1.9 Server and virtualization management . 28 1.10 System racks. 29 1.10.1 IBM 7014 Model T00 rack. 29 1.10.2 IBM 7014 Model T42 rack. 30 1.10.3 IBM 42U Slim Rack 7965-94Y . 32 1.10.4 Feature code 0551 rack . 32 1.10.5 Feature code 0553 rack . 32 1.10.6 Feature code ER05 rack . 32 1.10.7 The AC power distribution unit and rack content . 33 1.10.8 Rack-mounting rules . 35 1.10.9 Useful rack additions. 35 1.10.10 OEM rack . 38 Chapter 2. Architecture and technical overview . 41 2.1 The IBM POWER8 processor . 43 © Copyright IBM Corp. 2014. All rights reserved. iii 2.1.1 POWER8 processor overview. 44 2.1.2 POWER8 processor core . 46 2.1.3 Simultaneous multithreading. 47 2.1.4 Memory access. 48 2.1.5 On-chip L3 cache innovation and Intelligent Cache . 48 2.1.6 Level 4 cache and memory buffer. 49 2.1.7 Hardware transactional memory . 50 2.1.8 Coherent Accelerator Processor Interface . 51 2.1.9 Power management and system performance . 52 2.1.10 Comparison of the POWER8, POWER7+, and POWER7 processors . 53 2.2 Memory subsystem . 53 2.2.1 Custom DIMM . 54 2.2.2 Memory placement rules. 55 2.2.3 Memory bandwidth . 57 2.3 System bus . 60 2.4 Internal I/O subsystem . 61 2.4.1 Slot configuration . 61 2.4.2 System ports . 64 2.5 PCI adapters . 64 2.5.1 PCI Express . 64 2.5.2 LAN adapters . 66 2.5.3 Graphics accelerator adapters . 66 2.5.4 SAS adapters . 67 2.5.5 Fibre Channel adapters . ..