Virtualization Manager

Red Hat Enterprise Virtualization 3.6Installing and Maintaining the Red Hat Enterprise Virtualization Self-Hosted EngineAbstract A comprehensive guide to the self-hosted engine. Chapter 1. Introduction A self-hosted engine is a virtualized environment in which the engine, or Manager, runs on a virtual machine on the hosts managed by that engine. The virtual machine is created as part of the host configuration, and the Manager is installed and configured in parallel to the host configuration process. The primary benefit of the self-hosted engine is that it requires less hardware to deploy an instance of Red Hat Enterprise Virtualization as the Manager runs as a virtual machine, not on physical hardware. Additionally, the Manager is configured to be highly available. If the host running the Manager virtual machine goes into maintenance mode, or fails unexpectedly, the virtual machine will be migrated automatically to another host in the environment. A minimum of two self-hosted engine hosts are required to support the high availability feature. Table 1.1. Supported OS versions to Deploy Self-Hosted Engine System Type Supported Versions Red Hat Enterprise Linux Host 7.2 Red Hat Enterprise Virtualization Hypervisor Host 7.2 HostedEngine-VM (Manager) 6.7 It is important to synchronize the system clocks of the hosts, Manager, and other servers in the environment to avoid potential timing or authentication issues. To do this, configure the Network Time Protocol (NTP) on each system to synchronize with the same NTP server. 1.1. Installation OptionsSelf-Hosted Engine Hosts You can use Red Hat Enterprise Virtualization Hypervisors or Red Hat Enterprise Linux hosts, or both. Red Hat Enterprise Virtualization Hypervisor is distributed as an ISO file and contains only the packages required for the machine to act as a virtualization host. See Chapter 2, Deploying Self-Hosted Engine on Red Hat Enterprise Virtualization Hypervisor Red Hat Enterprise Linux systems subscribed to the appropriate entitlements can be used as virtualization hosts. See Chapter 3, Deploying Self-Hosted Engine on a Red Hat Enterprise Linux Host. Self-Hosted Engine Manager You can use the RHEV-M Virtual Appliance, or you can install and configure the Manager virtual machine manually. The RHEV-M Virtual Appliance automates the process of installing and configuring the Manager virtual machine, and does not require you to access the virtual machine during the setup. Manually installing and configuring the Manager virtual machine is also supported but requires you to access the virtual machine directly during the setup. Chapter 2. Deploying Self-Hosted Engine on Red Hat Enterprise Virtualization Hypervisor2.1. Installing Red Hat Enterprise Virtualization Hypervisor You will need to install a Red Hat Enterprise Virtualization Hypervisor machine before configuring self-hosted engine on it. For more information on storage requirements, see Storage Requirements in the Installation Guide. To use the RHEV-M Virtual Appliance for the Manager virtual machine installation, the data partition (/data) must be at least 60 GB. 2.2. Configuring Self-Hosted Engine on Red Hat Enterprise Virtualization Hypervisor Once you have installed a Red Hat Enterprise Virtualization Hypervisor using the Hypervisor ISO, set up self-hosted engine using the screen. Self-hosted engine is currently supported on

The two KVM hosts and publish the changes. A 10.0.10.11 kvm1.olvm.demoA 10.0.10.12 kvm2.olvm.demo Task 5: Add the KVM hosts to Oracle Linux Virtualization Manager Connect to the Oracle Linux Virtualization Manager web console. Update the ovirtmgmt network to use VLAN 1000. Navigate to Network and Networks. Select ovirtmgmt and click Edit. Select Enable VLAN tagging, enter 1000 and click Ok. Add the KVM hosts. Navigate to Compute and Hosts. Click New and enter the following information. Name: Enter kvm1.olvm.demo. Hostname: Enter kvm1.olvm.demo. Authentication: Select SSH Public Key. Add the public SSH key to the /root/.ssh/authorized_keys file on the KVM host and remove the existing content. Click Ok. Task 6: Add the Oracle Linux Virtualization Manager Certificate Authorities (CA) to the Browser Trusted Root Certificate Authorities List Download the CA certificate from the following address: Navigate to the browser Settings, Certificates and import the Oracle Linux Virtualization Manager CA to the trusted root certificate authorities list. Task 7: Create a New Storage Domain Create a new OCI Block Volume within the same availability domain as the KVM hosts. Attach the block volume to the first KVM host and select Read/write - shareable as Access. Attach the same block volume to the second KVM host and select Read/Write - shareable as Access. Create a new storage domain in Oracle Linux Virtualization Manager. Go to the Oracle Linux Virtualization Manager web console, navigate to Storage and Domains. Click New Domain and enter the following information. Name: Enter iscsi-datavol. Storage Type: Select iSCSI. Host:

Chapter 3. Red Hat Virtualization Manager3.1. Subscribing to the Required Entitlements Once you have installed a Red Hat Enterprise Linux base operating system and made sure the system meets the requirements listed in the previous chapter, you must register the system with Red Hat Subscription Manager, and subscribe to the required entitlements to install the Red Hat Virtualization Manager packages. Register your system with the Content Delivery Network, entering your Customer Portal user name and password when prompted: # subscription-manager register Find the Red Hat Enterprise Linux Server and Red Hat Virtualization subscription pools and note down the pool IDs. # subscription-manager list --available Use the pool IDs located in the previous step to attach the entitlements to the system: # subscription-manager attach --pool=pool_id To find out what subscriptions are currently attached, run: # subscription-manager list --consumed To list all enabled repositories, run: # yum repolist Disable all existing repositories: # subscription-manager repos --disable=* Enable the required repositories: # subscription-manager repos --enable=rhel-7-server-rpms# subscription-manager repos --enable=rhel-7-server-supplementary-rpms# subscription-manager repos --enable=rhel-7-server-rhv-4.0-rpms# subscription-manager repos --enable=jb-eap-7.0-for-rhel-7-server-rpms You have now subscribed your system to the required entitlements. Proceed to the next section to install the Red Hat Virtualization Manager packages.