What architecture is recommended for migrating on-premises SQL Server databases to Azure while ensuring security and low operational impact?

The architecture recommended for migrating on-premises SQL Server databases to Azure while ensuring security and low operational impact is SQL Server on Azure Virtual Machines. This approach offers several advantages that align with the requirements for security and minimal disruption during migration.

Using SQL Server on Azure Virtual Machines allows organizations to maintain a similar environment to their on-premises setup. This is particularly beneficial for businesses that rely on specific configurations, customizations, or applications that are tightly integrated with SQL Server. Because you’re essentially moving your server to a cloud instance without altering much of the software architecture, the transition can be smoother and less impactful on operations.

Furthermore, this option supports advanced security features, such as Azure security centers, encryption, and network security groups, which help safeguard data during and after the migration. Additionally, it provides organizations with more control over the virtual machine, allowing them to implement security protocols that align with their existing practices.

While other options, such as Azure SQL Database Elastic Pools or Azure SQL Managed Instance, offer various benefits, they may require more modifications to the database structure and could lead to potential compatibility issues for applications relying on specific SQL Server features. Azure Data Lake, on the other hand, is primarily designed for big data storage and analytics rather than direct SQL database migration