f you new to Azure and kicking the tires on SQL IaaS, you’ll want to make sure you are aware of these 4 options for HADR. Don’t forget to allocate some time to install / configure Active Directory for the high-end solutions.
SQL Server HADR technologies that are supported in Azure include:
- AlwaysOn Availability Groups
- Database Mirroring
- Log Shipping
- Backup and Restore with Azure Blob Storage Service
Full article: http://msdn.microsoft.com/en-us/library/azure/jj870962.aspx