As a PaaS service, Azure SQL provides automated backup for all databases. It allows customers to recover their data from system or human errors and restores the databases to any point in time during the retention. But it won’t guarantee that your data will be always available, in some extreme cases. Imagine aliens invaded one of our data centers and destroyed everything, or more realistically, extreme weather put the whole area in power outage. Look at what hurricane Irma or Marina did. It happens.
Fortunately, Azure DB is prepared for this. We provide not only one, but two different solutions to recover your data in those disasters: Geo Restore and Geo Replication.
Read about it in the Azure blog.