Modern enterprise DR in Azure must support:

• Same-region failover

• Cross-region failover

• Hybrid cloud continuity

• PaaS and IaaS recovery

Key Azure DR Components

Same Region

• Availability Zones

• Zone-redundant SQL

• ZRS Storage

Multi Region

• Azure Site Recovery

• Front Door

• Traffic Manager

• Geo-replication

Hybrid

• ExpressRoute failover

• VPN backup

• Active Directory replication

Azure Storage Replication

Choosing the correct storage replication model is critical.

Type DR Capability

LRS None

ZRS Zone

GRS Regional

RA-GZRS Enterprise DR

SQL Disaster Recovery

Recommended enterprise SQL controls:

• Auto Failover Groups

• Geo-replication

• Zone redundancy

• Backup retention

DR Testing Matters

Recommended cadence:

• Monthly restore testing

• Quarterly failover testing

• Annual enterprise DR simulation

Final Thoughts

Cloud DR is now part of enterprise architecture, security and operations.

The focus should be:

• Automation

• Repeatability

• Testing

• Security…