Apama 10.15.0 | Installing Apama | Before You Start the Installation | Persistence database backup
 
Persistence database backup
If using correlator persistence, you are recommended to shut down any running correlators and then take a backup of the persistence database before installing any new major or service pack version, as the persistence database is automatically upgraded when opened using a newer correlator version and cannot be downgraded or then used with the original correlator version.
See also Using Correlator Persistence.