Azure Site Recovery
ASR: Azure Site Recovery
Yes — Azure Site Recovery (ASR) is commonly used as a migration tool, even though its primary purpose is disaster recovery.
How ASR Is Used for Migration
Organizations use ASR to perform:
- Lift-and-shift migrations
- VMware to Azure migrations
- Hyper-V to Azure migrations
- Physical server to Azure migrations
ASR replicates workloads continuously from on-premises infrastructure to Azure. During the final cutover, the replicated VM is started in Azure with minimal downtime.
Migration Workflow Using ASR
Typical Flow
- Discover on-prem servers
- Enable replication
- Continuous data synchronization
- Test failover (optional)
- Planned failover/cutover
- Azure VM becomes production workload
This approach minimizes:
- Downtime
- Data loss
- Manual rebuild effort
Why ASR Is Popular for Migration
| Benefit | Explanation |
|---|---|
| Minimal Downtime | Continuous replication keeps Azure VM updated |
| Fast Migration | No need to rebuild servers manually |
| Testing Capability | Test failover before production cutover |
| Large-Scale Support | Handles many VMs simultaneously |
| Rollback Option | Easier fallback during migration |
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