Planning for Site Recovery
Business-critical applications may have different backup and recovery requirements to servers that don't change often or store data. For applications that need to be recovered quickly, or that need to be backed up every few minutes or hours, Recovery Services values also provide a tool called Azure Site Recovery. Both Azure Backup and Azure Site Recovery are set up and managed by an Azure Recovery Services vault.
Whereas Azure Backup takes a one-off backup at daily intervals, Azure Site Recovery continually replicates your VM's disks to another region. In the event that you need to failover, a new VM is created and attached to the replicated disk in the paired region, as we can see in the following diagram:
Figure 16.2 – Azure Site Recovery architecture
As we can see from the preceding diagram, Azure Site Recovery requires a VNET and subnet in the paired region that your replicated VMs can attach to. When you set up a VM to use Site...
