Database auto-backup can be configured through below system level settings:
Specify a cron expression to schedule database auto-backup. The cron expression format is <seconds> <minutes> <hours> <day-of-month> <month> <day-of-week>. For example, 0 0 1 * * ? means 1:00am every day. For details of the format, refer to http://www.opensymphony.com/quartz/wikidocs/TutorialLesson6.html. If this value is not specified however, database auto-backup will be disabled and below database auto-backup related properties will be ignored.
Specify folder to place the backup files. It will be assumed to be relative to the QuickBuild installation directory if a relative path is specified, and the value backup will be assumed if this property is left blank.
Specify prefix of the backup files (the suffix is determined by backup date). The value quickbuild will be assumed if this property is not specified.