There are numerous backup methods, generally complete or partial combined with cold or hot. The simple method is a cold complete backup;

  • Stop Noodle
  • Stop the database
  • Copy the database folder and the Noodle folder to a different disk
  • Start the database
  • Start Noodle
  • Send the copy to a different physical location

More options for database backups include;

  • Hot complete backups allow a you a snapshot of your database without stopping anything.
  • Hot partial backups can be used to backup only recent changes, allow for point in time recovery, and reduce server load.
  • Cold partial backups can decrease the time of a cold complete backup.

Hot partial backups can also be used to keep a warm backup server in case of disaster, at any time it will be a usable exact copy of your production database.

production environments should select a backup strategy to maximize flexibility while reducing server load and storage requirements.

For details on backup options please read your database documentation.

Also see  the windows postgres example