General Query:
What are the future plans for High Availability of PI Notifications.
To my understanding, the only option providing seamless failover is to utilise a Windows Server Failover Cluster, with high performance Shared Storage to hold the Notifications RunTime files.
Are there any plans to make Notifications stateless, and store all data in SQL, where SQL AlwaysOn Availability groups can be utilised?
Feedback much appreciated.
ADMIN RESPONSE
Aug 20, 2022
Marking this as completed as the original question has been answered.
For PI Notifications, similar to AF and Analytics, high availability requires that you provide a failover for the service itself and the SQL backend. The recommended HA solution for PI Notifications using Windows Server Failover Cluster (WSFC) is solely for PI Notifications Service. The assumption is that some kind of HA solution is already implemented for AF Application Service and the SQL backend, with SQL Server Always On being the current recommended HA solution.
Making the Notifications Service Stateless or storing the State information in SQL Server is a good first step. I would to make the service run as a redundant pair in the way the interfaces work and remove all WSFC requirements.
