Ensuring high availability when deploying Azure Virtual Desktop requires designing for redundancy and fault tolerance. Distribute host pools across multiple availability zones or regions to minimize downtime risks. Use Azure Load Balancer and Traffic Manager to distribute user sessions evenly. Regularly back up user profiles and session data with FSLogix and Azure Blob storage. Implement automated health monitoring and alerting to quickly detect and remediate issues. Planning for disaster recovery and failover capabilities ensures continuous access to virtual desktops in the event of infrastructure failures.

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