INFOBRIGHT based SQL PI
The third-party Infobright component used by PI (Performance Investigator) is not cluster aware. This prevents the PI watchdog and maintenance agents from participating in the FglAM high availability.
The SQL PI repository is not High Availability (HA) compatible.
This is listed as known issues SSDB-13479 and ODB-11467
SQL Server PI base SQL PI
A SQL Server based SQL PI environment is compatible with High Availability (HA) when configured with the necessary allow list information detailed in KB 315130.