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

  1. Discover on-prem servers
  2. Enable replication
  3. Continuous data synchronization
  4. Test failover (optional)
  5. Planned failover/cutover
  6. Azure VM becomes production workload

This approach minimizes:

  • Downtime
  • Data loss
  • Manual rebuild effort
Why ASR Is Popular for Migration

BenefitExplanation
Minimal DowntimeContinuous replication keeps Azure VM updated
Fast MigrationNo need to rebuild servers manually
Testing CapabilityTest failover before production cutover
Large-Scale SupportHandles many VMs simultaneously
Rollback OptionEasier fallback during migration


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