Veeam Availability Orchestrator Server(s)

VAO server is the configuration, administration and management core of the VAO infrastructure. Depending on the location, you can assign either the DR VAO server or Production VAO server role to the server. For more information, see Deployment Modes.

The VAO server is comprised of the following components:

• VAO Server Service —  is responsible for synchronizing data across VAO sites, managing failover plans and administering user roles and permissions.
• VAO Agent Service — is responsible for communication with Veeam Backup & Replication servers. It is automatically deployed in a VAO server to communicate with the embedded backup server. It can be also deployed to remote Veeam Backup & Replication servers from the VAO UI.
• VAO UI — is a web-based UI that allows users to interact with the VAO Service and perform various configuration and administration actions.
• Veeam Backup & Replication Server (embedded) — сan be orchestrated directly by the VAO Service without further configuration, and may also be used as a fully functional Veeam Backup & Replication server (for example you may create and run replication and backup jobs).
• Veeam ONE Server (embedded) — handles the ONE Business View engine to gather VM inventory and collect VMs into VM groups for use in failover plans. The embedded ONE server should not be used for other monitoring or reporting functions.
• SQL Server — is used to host configuration data, VM inventory, and failover plan definitions. A SQL Server Express instance may be installed locally with other VAO components. However, for best performance and scalability SQL enterprise edition is recommended, which may be a remote server.

All VAO components may be deployed on a single Windows-based physical or virtual machine using the unified installer. This case is suitable for the single-server installation, POC and testing scenarios.