We advise that you perform a full backup every week, and a database backup every day. We also strongly suggest that you export your downloads to one of the four external locations/methods, such as Amazon S3, Dropbox, FTP, or email.
If your backups aren’t external and your entire site gets wiped, the backups will disappear along with the rest of your data.
When it comes to restoring a site, the first thing you need to do is get your hands on the files and folders that you will be restoring...