Azure Site Recovery is a service that’s dedicated to managing process recovery for workloads running on VMs deployed to Azure, VMs running on physical servers, and workloads running directly on physical servers. Site Recovery replicates workloads to alternate locations and helps you to failover when an outage occurs and supports testing of a disaster recovery plan.

Site Recovery supports replicating whole VMs and physical server images as well as individual workloads, where a workload may be an individual application or an entire VM or operating system with its applications. Any application workload can be replicated, but Site Recovery has first-class integrated support for many Microsoft server applications, such as SQL Server and SharePoint, as well as many third-party applications.
Reference Materials
- Microsoft Learn: Develop a disaster recovery strategy