The backup is a .zip file containing all files in the directories you specify, along with a dump of your database (MySQL and PostgreSQL are supported). The .zip file can automatically be copied over to any of the filesystems you have configured in Laravel 5.
To make a backup you can run
php artisan backup:run. In most cases you'll want to schedule this command.
Cleaning up old backups
If you keep on performing backups eventually you'll run out of disk space (or you'll have to pay a very large bill for storage). To prevent this from happening the package is able to delete older backups.
Monitoring the health of all backups
Optionally, the package can check the health of your application's backups. A backup is considered unhealthy if the date of the last backup is too far in the past or if the backup becomes too large. In addition to monitoring the health of the application's own backups, backups of other applications can be monitored as well.