Front cover IBM Power Systems E870C and E880C Technical Overview and Introduction Scott Vetter Alexandre Bicas Caldeira Volker Haug Redpaper International Technical Support Organization IBM Power Systems E870C and E880C Technical Overview and Introduction October 2016 REDP-5413-00 Note: Before using this information and the product it supports, read the information in “Notices” on page vii. First Edition (October 2016) This edition applies to the IBM Power E870C (9080-MME) and Power E880C (9080-MHE) Power Systems servers. This document was created or updated on November 14, 2018. © Copyright International Business Machines Corporation 2016. 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. .x Now you can become a published author, too! . xi Comments welcome. xi Stay connected to IBM Redbooks . xi Chapter 1. General description . 1 1.1 Systems overview . 3 1.1.1 Power E870C server. 3 1.1.2 Power E880C server. 4 1.1.3 System control unit . 5 1.1.4 System nodes . 6 1.1.5 I/O drawers . 9 1.2 Operating environment . 9 1.3 Physical package . 10 1.4 System features . 11 1.4.1 Power E870C system features . 11 1.4.2 Power E880C system features . 12 1.4.3 Minimum features . 13 1.4.4 Power supply features . 15 1.4.5 Processor card features . 16 1.5 Disk and media features . 16 1.6 I/O drawers . 17 1.6.1 PCIe Gen3 I/O expansion drawer . 17 1.6.2 I/O drawers and usable PCI slot . 19 1.7 EXP24S SFF Gen2-bay Drawer . 20 1.8 Model comparison. 21 1.9 Build to order. 22 1.10 Model upgrades . 22 1.10.1 Power E870C . 22 1.10.2 Power E880C . 23 1.10.3 Upgrade considerations . 23 1.11 Management consoles . 24 1.12 System racks. 25 1.12.1 IBM 7014 model T00 rack. 26 1.12.2 IBM 7014 model T42 rack. 26 1.12.3 Feature code #0551 rack . 28 1.12.4 Feature code #0553 rack . 28 1.12.5 AC power distribution unit and rack content . 28 1.12.6 Rack-mounting rules . 31 Chapter 2. Architecture and technical overview . 35 2.1 Logical diagrams . 36 2.2 IBM POWER8 processor . 40 2.3 Memory subsystem . 41 2.3.1 Custom DIMM . 41 © Copyright IBM Corp. 2016. All rights reserved. iii 2.3.2 Memory placement rules. 42 2.3.3 Memory activation. 47 2.3.4 Memory throughput. 48 2.3.5 Active Memory Mirroring . 52 2.3.6 Memory Error Correction and Recovery . 53 2.3.7 Special Uncorrectable Error handling . 53 2.4 Capacity on Demand. 53 2.4.1 Capacity Upgrade on Demand . 53 2.4.2 Power enterprise pools and Mobile Capacity on Demand . 55 2.4.3 Elastic Capacity on Demand. 56 2.4.4 Utility Capacity on Demand. 58 2.4.5 Trial Capacity on Demand. 58 2.4.6 Software licensing and CoD . 59 2.5 System bus . 59 2.5.1 PCI Express Gen3 . 59 2.5.2 Service Processor Bus . 61 2.6 Internal I/O subsystem . 63 2.6.1 Blind-swap cassettes . 64 2.6.2 System ports . 64 2.7 PCI adapters . 65 2.7.1 PCI Express . ..