Migrate to Azure with Site Recovery
Read this article to learn about using the Azure Site Recovery service to migrate on-premises virtual machines (VMs) and physical servers, to Azure VMs.
Before you start
Watch this video for a quick overview of the steps required to migrate to Azure.
What do we mean by migration?
You can deploy Site Recovery to replication on-premises VMs and physical servers, and to migrate them.
- When you replicate, you configure on-premises machines to replicate on a regular basis to Azure. Then when an outage occurs, you fail the machines over from the on-premises site to Azure, and access them from there. When the on-premises site is available again, you fail back from Azure.
- When you use Site Recovery for migration, you replicate on-premises machines to Azure. Then you fail them over from your on-premises site to Azure, and finish up the migration process. There's no failback involved.
What can Site Recovery migrate?
- Migrate from on-premises: Migrate on-premises Hyper-V VMs, VMware VMs, and physical servers to Azure. After the migration, workloads running on the on-premises machines will be running on Azure VMs.
- Migrate within Azure: Migrate Azure VMs between Azure regions.
- Migrate AWS: Migrate AWS Windows instances to Azure IaaS VMs.
Migrate from on-premises to Azure
To migrate on-premises VMware VMs, Hyper-V VMs, and physical servers, you follow almost the same steps as you would for full replication.
Migrate between Azure regions
To migrate Azure VMs between regions, you follow almost the same steps as you would for full migration.
- You enable replication) for the machines you want to migrate.
- You run a quick test failover to make sure everything's working.
- Then, you run an unplanned failover with the Complete Migration option.
- After you've completed the migration, you can set up replication for disaster recovery, from the Azure region to which you migrated, to a secondary region.
Migrate AWS to Azure
You can migrate AWS instances to Azure VMs.
- In this scenario only migration is supported. In other words, you can replicate the AWS instances and fail them over to Azure, but you can't fail back.
- AWS instances are handled in the same way as physical servers for migration purposes. You set up a Recovery Services vault, deploy an on-premises configuration server to manage replication, add it to the vault, and specify replication settings.
- You enable replication for the machines you want to migrate, and run a quick test failover. Then you run an unplanned failover with the Complete Migration option.