Xìtǒng zìdòng chuàngjiàn le shùjùkù de kuàizhào bèifèn.
The system automatically created a snapshot backup of the database.
Tips
usage
快照 covers both the photographic sense (a casual, spontaneous photo) and the computing sense (a point-in-time copy of data, e.g. a disk or database snapshot). Context makes the meaning clear.