PI AF collective installation and upgrade

PI AF collectives are an option for implementing high availability for your PI AF server deployment and use SQL Server replication to copy data from the primary PI AF SQL database computer to each of the secondary PI AF SQL database computers.

We recommend using Failover Cluster or NLB options instead of PI AF collectives for high availability Asset Framework deployments.

Note: Secondary PI AF collective members are read-only and applications that require writes to the PI AF Configuration database (such as asset analytics and notifications) or applications that write event frames will not work when the PI AF collective primary server is unavailable.