1. Local or Remote Hosting

The following components can be hosted on either the Engine or a remote machine. Keeping all components on the Engine machine is easier and requires less maintenance, so is preferable when performance is not an issue. Moving components to a remote machine requires more maintenance, but can improve the performance of both the Engine and Data Warehouse.

Data Warehouse database and service

To host Data Warehouse on the Engine, select Yes when prompted by engine-setup.

To host Data Warehouse on a remote machine, select No when prompted by engine-setup, and see Installing and Configuring Data Warehouse on a Separate Machine in Installing oVirt as a standalone Engine with remote databases.

To migrate Data Warehouse post-installation, see Migrating Data Warehouse to a Separate Machine in the Data Warehouse Guide.

You can also host the Data Warehouse service and the Data Warehouse database separately from one another.

Engine database

To host the Engine database on the Engine, select Local when prompted by engine-setup.

To host the Engine database on a remote machine, see Preparing a Remote PostgreSQL Database in Installing oVirt as a standalone Engine with remote databases before running engine-setup on the Engine.

Websocket proxy

To host the websocket proxy on the Engine, select Yes when prompted by engine-setup.

Self-hosted engine environments use an appliance to install and configure the Engine virtual machine, so Data Warehouse, the Engine database, and the websocket proxy can only be made external post-installation.

2. Remote Hosting Only

The following components must be hosted on a remote machine:

DNS

Due to the extensive use of DNS in a oVirt environment, running the environment’s DNS service as a virtual machine hosted in the environment is not supported.

Storage

With the exception of local storage, the storage service must not be on the same machine as the Engine or any host.

Identity Management

IdM (ipa-server) is incompatible with the mod_ssl package, which is required by the Engine.