As a database administrator, I am very conscious of how data is being backed up. Up until SQL Server 2012, you were limited to backing up your databases to a physical device. That device could be a tape, local disk, or network storage. After successfully creating a backup, if you’re doing it right, the backups then had to be moved off-site for disaster recovery purposes.
Today, with SQL Server 2012 or higher, you can now backup directly to a URL. This URL is an endpoint into a cloud storage account, in this case, for Microsoft Azure. Furthermore, with Azure Availability Zones now available, certain regions give you extra redundancy and will be replicated to another region for a minimal cost. Not only does this solution offer you the ability to back up your databases off-site, but you get the added benefit of having them replicated for you.