Thank you very much to everyone that attended the Considerations for a High Availability Enterprise spotlight presentation at the 2019 Esri User Conference. High availability is a design approach that helps a system meet a prearranged level of operational performance over a specific period of time. Highly available systems provide customers with a reliable, high-performing environment that meets or exceeds their business requirements for service delivery.
These recommendations are further detailed in the "Architecting the ArcGIS Platform: Best Practices" document. If you have any questions or need further assistance, contact Esri's Global Architecture Team.