Front cover Red Hat OpenShift V4.3 on IBM Power Systems Reference Guide Dino Quintero Daniel Casali Alain Fisher Federico Fros Miguel Gomez Gonzalez Felix Gonzalez Paulo Sergio Lemes Queiroz Sudipto Pal Bogdan Savu Richard Wale Redpaper IBM Redbooks Red Hat OpenShift V4.3 on IBM Power Systems Reference Guide September 2020 REDP-5599-00 Note: Before using this information and the product it supports, read the information in “Notices” on page v. First Edition (September 2020) This edition applies to: Red Hat Enterprise Linux V7 Red Hat OpenShift Container Platform for Power Enterprise V4.3 Red Hat CoreOS V4.3 IBM AIX V7.2 © Copyright International Business Machines Corporation 2020. 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 . .v Trademarks . vi Preface . vii Authors. vii Now you can become a published author, too! . ix Comments welcome. ix Stay connected to IBM Redbooks . .x Chapter 1. Introduction to Red Hat OpenShift V4.3 . 1 1.1 Introduction . 2 1.2 Red Hat OpenShift V4.3 . 2 1.3 Publication overview . 3 Chapter 2. Supported configurations and sizing guidelines . 5 2.1 IBM Power Systems . 6 2.1.1 Mission-critical workloads . 7 2.1.2 Big data workloads . 9 2.1.3 Enterprise AI workloads . 10 2.2 Red Hat OpenShift Container Platform V4.3 on IBM Power Systems . 11 2.2.1 Differences between Red Hat OpenShift Container Platform V4.3 and V3.11 . 14 2.3 Supported configurations . 16 2.3.1 Supported configurations and recommended hardware . 16 2.3.2 Getting started with Red Hat OpenShift V4.3 on Power Systems with a minimal configuration . 17 2.3.3 Installation on restricted networks. 19 2.4 Red Hat OpenShift V4.3 sizing guidelines . 20 2.4.1 Red Hat OpenShift sizing guidelines. 22 2.4.2 Sizing for IBM Cloud Paks . 23 2.5 Storage guidelines . 26 2.5.1 NFS storage . 26 2.5.2 NFS dynamic provisioning . 26 2.5.3 IBM Spectrum Scale . 30 2.5.4 IBM Spectrum Scale and NFS . 30 2.5.5 PowerVC Container Storage Interface driver . 31 2.5.6 Backing up and restoring your Red Hat OpenShift cluster and applications. 31 Chapter 3. Reference installation guide for Red Hat OpenShift V4.3 on Power Systems servers . 33 3.1 Introduction . 34 3.2 Red Hat OpenShift V4.3 deployment with internet connection stand-alone installation 34 3.2.1 PowerVM configuration for network installation . 35 3.2.2 BOOTP infrastructure server for installing CoreOS by using the network . 35 3.2.3 Network infrastructure prerequisites for Red Hat OpenShift Container Platform installation in a production environment . 39 3.2.4 Creating a network infrastructure for a test environment . 39 3.2.5 Installing Red Hat OpenShift on PowerVM LPARs by using the BOOTP network installation. 44 3.2.6 Configuring the internal Red Hat OpenShift registry. 49 © Copyright IBM Corp. 2020. iii 3.3 Using NIM as your BOOTP infrastructure . 50 3.3.1 Prerequisites and components . 51 3.4 Installing on scale-out servers bare metal. 56 3.5 NVMe 4096 block size considerations . 58 3.6 Offline Red Hat OpenShift V4.3 deployment. 58 Chapter 4. IBM Cloud Paks . 59 4.1 Introduction . 60 4.2 IBM Cloud Paks . 60 4.3 IBM Cloud Paks offerings . 61 4.3.1 IBM Cloud Pak for Application . 61 4.3.2 IBM Cloud Pak for Data . 62 4.3.3 IBM Cloud Pak for Integration. 62 4.3.4 IBM Cloud Pak for Automation . 62 4.3.5 IBM Cloud Pak for Multicloud Management . 63 4.4 IBM Cloud Pak for Data . 63 4.4.1 IBM Cloud Pak for Data features and enhancements. 64 4.4.2 IBM Cloud Pak for Data requirements . 65 4.4.3 Installing IBM Cloud Pak for Data on Power Systems servers . 65 4.4.4 IBM Cloud Pak for Data backup . 71 Appendix A. Configuring Red Hat CoreOS. 73 CoreOS machine configuration management and machineconfig objects. 74 Using CoreOS tuned operator to apply the sysctl parameters. 82 Appendix B. Booting from System Management Services . 85 Entering SMS mode . 86 Option 1: Boot directly to SMS from the HMC . 87 Option 2: Enter SMS from the startup console. 88 Configuring booting from network . 89 Configuring boot device order . 102 Appendix C. Additional material . 111 Locating the web material . 111 Using the web material. 111 System requirements for downloading the web material . 111 Downloading and extracting the web material . 112 Related publications . 113 IBM Redbooks . ..