Maintaining a backup and restore of your Store Database is not only a good practice but a real necessity. Backing up the database allows recovery of the database either partially or totally in case of an operating system, software, hardware failure or human mistakes. These can damage or make the database inoperative and the data inaccessible.
The backup and recovery Wizard gives you the ability to configure possible database restore scenarios.
For a step-by step instructions please see Database_backup_and_restore Wizard section of the documentation