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Red Hat Virtualization 4.3 Planning and Prerequisites Guide Red Hat Virtualization 4.3 Planning and Prerequisites Guide Planning for the Installation and Configuration of Red Hat Virtualization 4.3 Last Updated: 2019-05-09 Red Hat Virtualization 4.3 Planning and Prerequisites Guide Planning for the Installation and Configuration of Red Hat Virtualization 4.3 Red Hat Virtualization Documentation Team Red Hat Customer Content Services [email protected] Legal Notice Copyright © 2019 Red Hat, Inc. The text of and illustrations in this document are licensed by Red Hat under a Creative Commons Attribution–Share Alike 3.0 Unported license ("CC-BY-SA"). An explanation of CC-BY-SA is available at http://creativecommons.org/licenses/by-sa/3.0/ . In accordance with CC-BY-SA, if you distribute this document or an adaptation of it, you must provide the URL for the original version. Red Hat, as the licensor of this document, waives the right to enforce, and agrees not to assert, Section 4d of CC-BY-SA to the fullest extent permitted by applicable law. Red Hat, Red Hat Enterprise Linux, the Shadowman logo, JBoss, OpenShift, Fedora, the Infinity logo, and RHCE are trademarks of Red Hat, Inc., registered in the United States and other countries. Linux ® is the registered trademark of Linus Torvalds in the United States and other countries. Java ® is a registered trademark of Oracle and/or its affiliates. XFS ® is a trademark of Silicon Graphics International Corp. or its subsidiaries in the United States and/or other countries. MySQL ® is a registered trademark of MySQL AB in the United States, the European Union and other countries. Node.js ® is an official trademark of Joyent. Red Hat Software Collections is not formally related to or endorsed by the official Joyent Node.js open source or commercial project. The OpenStack ® Word Mark and OpenStack logo are either registered trademarks/service marks or trademarks/service marks of the OpenStack Foundation, in the United States and other countries and are used with the OpenStack Foundation's permission. We are not affiliated with, endorsed or sponsored by the OpenStack Foundation, or the OpenStack community. All other trademarks are the property of their respective owners. Abstract This document provides requirements, options, and recommendations for Red Hat Virtualization environments. Table of Contents Table of Contents .P .R . E. .F . A. .C . E. 3. .C . H. .A . P. .T .E . R. 1.. .R . E. .D . .H . A. .T . .V . I.R . T. .U . A. .L .I .Z .A . T. .I O. .N . A. .R . C. .H . I.T . E. C. T. U. .R . E. .4 . 1.1. SELF-HOSTED ENGINE ARCHITECTURE 4 1.2. STANDALONE MANAGER ARCHITECTURE 4 .C . H. .A . P. .T .E . R. 2. R. .E . Q. .U . .I R. .E .M . .E . N. .T . S. 6. 2.1. RED HAT VIRTUALIZATION MANAGER REQUIREMENTS 6 2.1.1. Hardware Requirements 6 2.1.2. Browser Requirements 6 2.1.3. Client Requirements 7 2.1.4. Operating System Requirements 8 2.2. HOST REQUIREMENTS 8 2.2.1. CPU Requirements 8 2.2.1.1. Checking if a Processor Supports the Required Flags 9 2.2.2. Memory Requirements 9 2.2.3. Storage Requirements 9 2.2.4. PCI Device Requirements 10 2.2.5. Device Assignment Requirements 10 2.2.6. vGPU Requirements 11 2.3. NETWORKING REQUIREMENTS 11 2.3.1. Firewall Requirements for DNS, NTP, and IPMI Fencing 11 2.3.2. Red Hat Virtualization Manager Firewall Requirements 12 2.3.3. Host Firewall Requirements 15 2.3.4. Database Server Firewall Requirements 18 .C . H. .A . P. .T .E . R. 3. C. O. .N . S. .I D. .E . R. .A . T. .I O. .N . .S . .2 . 0. 3.1. HOST TYPES 20 3.1.1. Red Hat Virtualization Hosts 20 3.1.2. Red Hat Enterprise Linux Hosts 20 3.2. STORAGE TYPES 20 3.2.1. NFS 21 3.2.2. iSCSI 21 3.2.3. Fibre Channel 21 3.2.4. Fibre Channel over Ethernet 22 3.2.5. Red Hat Gluster Storage 22 3.2.6. POSIX-Compliant FS 22 3.2.7. Local Storage 22 3.3. NETWORKING CONSIDERATIONS 23 3.4. DIRECTORY SERVER SUPPORT 24 3.5. INFRASTRUCTURE CONSIDERATIONS 24 3.5.1. Local or Remote Hosting 24 3.5.2. Remote Hosting Only 25 .C . H. .A . P. .T .E . R. 4. .R . E. C. .O . .M . .M . E. .N . D. A. .T .I O. N. .S . .2 . 6. 4.1. GENERAL RECOMMENDATIONS 26 4.2. SECURITY RECOMMENDATIONS 26 4.3. HOST RECOMMENDATIONS 27 4.4. NETWORKING RECOMMENDATIONS 27 Recommended Practices for Configuring Host Networks 28 4.5. SELF-HOSTED ENGINE RECOMMENDATIONS 29 1 Red Hat Virtualization 4.3 Planning and Prerequisites Guide 2 PREFACE PREFACE Red Hat Virtualization is made up of connected components that each play different roles in the environment. Planning and preparing for their requirements in advance helps these components communicate and run efficiently. This guide covers: Hardware and security requirements The options available for various components Recommendations for optimizing your environment 3 Red Hat Virtualization 4.3 Planning and Prerequisites Guide CHAPTER 1. RED HAT VIRTUALIZATION ARCHITECTURE Red Hat Virtualization can be deployed as a self-hosted engine, or as a standalone Manager. A self- hosted engine is the recommended deployment option. 1.1. SELF-HOSTED ENGINE ARCHITECTURE The Red Hat Virtualization Manager runs as a virtual machine on self-hosted engine nodes (specialized hosts) in the same environment it manages. A self-hosted engine environment requires one less physical server, but requires more administrative overhead to deploy and manage. The Manager is highly available without external HA management. The minimum setup of a self-hosted engine environment includes: One Red Hat Virtualization Manager virtual machine that is hosted on the self-hosted engine nodes. The RHV-M Appliance is used to automate the installation of a Red Hat Enterprise Linux 7 virtual machine, and the Manager on that virtual machine. A minimum of two self-hosted engine nodes for virtual machine high availability. You can use Red Hat Enterprise Linux hosts or Red Hat Virtualization Hosts (RHVH). VDSM (the host agent) runs on all hosts to facilitate communication with the Red Hat Virtualization Manager. The HA services run on all self-hosted engine nodes to manage the high availability of the Manager virtual machine. One storage service, which can be hosted locally or on a remote server, depending on the storage type used. The storage service must be accessible to all hosts. Figure 1.1. Self-Hosted Engine Red Hat Virtualization Architecture 1.2. STANDALONE MANAGER ARCHITECTURE The Red Hat Virtualization Manager runs on a physical server, or a virtual machine hosted in a separate virtualization environment. A standalone Manager is easier to deploy and manage, but requires an additional physical server. The Manager is only highly available when managed externally with a product such as Red Hat’s High Availability Add-On. The minimum setup for a standalone Manager environment includes: One Red Hat Virtualization Manager machine. The Manager is typically deployed on a physical server. However, it can also be deployed on a virtual machine, as long as that virtual machine is hosted in a separate environment. The Manager must run on Red Hat Enterprise Linux 7. 4 CHAPTER 1. RED HAT VIRTUALIZATION ARCHITECTURE A minimum of two hosts for virtual machine high availability. You can use Red Hat Enterprise Linux hosts or Red Hat Virtualization Hosts (RHVH). VDSM (the host agent) runs on all hosts to facilitate communication with the Red Hat Virtualization Manager. One storage service, which can be hosted locally or on a remote server, depending on the storage type used. The storage service must be accessible to all hosts. Figure 1.2. Standalone Manager Red Hat Virtualization Architecture 5 Red Hat Virtualization 4.3 Planning and Prerequisites Guide CHAPTER 2. REQUIREMENTS 2.1. RED HAT VIRTUALIZATION MANAGER REQUIREMENTS 2.1.1. Hardware Requirements The minimum and recommended hardware requirements outlined here are based on a typical small to medium-sized installation. The exact requirements vary between deployments based on sizing and load. Hardware certification for Red Hat Virtualization is covered by the hardware certification for Red Hat Enterprise Linux. For more information, see https://access.redhat.com/solutions/725243. To confirm whether specific hardware items are certified for use with Red Hat Enterprise Linux, see https://access.redhat.com/ecosystem/#certifiedHardware. Table 2.1. Red Hat Virtualization Manager Hardware Requirements Resource Minimum Recommended CPU A dual core CPU. A quad core CPU or multiple dual core CPUs. Memory 4 GB of available system RAM if 16 GB of system RAM. Data Warehouse is not installed and if memory is not being consumed by existing processes. Hard Disk 25 GB of locally accessible, 50 GB of locally accessible, writable disk space. writable disk space. You can use the RHV Manager History Database Size Calculator to calculate the appropriate disk space for the Manager history database size. Network Interface 1 Network Interface Card (NIC) 1 Network Interface Card (NIC) with bandwidth of at least 1 Gbps. with bandwidth of at least 1 Gbps. 2.1.2. Browser Requirements The following browser versions and operating systems can be used to access the Administration Portal and the VM Portal. Browser support is divided into tiers: Tier 1: Browser and operating system combinations that are fully tested and fully supported. Red Hat Engineering is committed to fixing issues with browsers on this tier. Tier 2: Browser and operating system combinations that are partially tested, and are likely to work. Limited support is provided for this tier. Red Hat Engineering will attempt to fix issues with browsers on this tier.
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