WP-InstantBackup makes it simple to perform database and/or directory backups via FTP, Email, or both.
Once activated, the plugin should automatically place a menu in the top right of your wordpress admin with the three backup options.
A database backup is a backup of the current wordpress database--resulting in a zipped sql file which can be imported into mysql later to recover your database.
A filesystem backup is simply a backup of a directory that you have specified within the Backup Output Settings. By default the WordPress root directory is backed up.
A full backup performs both a filesystem and database backup, and generates two output zip files.
Only administrator users are allowed to view the InstantBackup settings menu and page.