Disaster recovery (DR) in Azure is a service that helps protect your data in the event of a disaster. DR can be used to protect your data from accidental or intentional destruction, as well as from natural disasters. DR in Azure is built on the foundation of replication and replica sets. Replication ensures that your data is always available, even if some nodes in your data center are unavailable.
Replica sets provide a high-availability solution for data by automatically creating multiple copies of your data, which can be used in the event of failure. DR in Azure is designed to be simple to use and manage, making it easy to protect your data in the event of a disaster.