We have a number of customers that leverage the benefits offered by the SQL IaaS extension which I had blogged about a few days ago. One of the common feedback was the effort required to enable the extension for multiple VMs especially if you were running multiple SQL Server on Azure VM instances. We have created an easy option for customers to enable the SQL IaaS extensions on all SQL Server virtual machines in an Azure subscription using a feature called Automatic Registration.
To enable automatic registration of your SQL Server VMs in the Azure portal, follow the steps: