Which service should you use to migrate on-premises servers to Azure virtual machines while preserving SMB share properties?

The Storage Migration Service is specifically designed to facilitate the migration of on-premises servers to Azure virtual machines while preserving existing configurations, including SMB share properties. This service automates the process of transferring data to Azure and ensures that the shares are maintained, which is critical for applications that rely on shared file access. It simplifies the transition by replicating the data and configurations of the original servers, allowing for a smoother move to the cloud environment without disrupting ongoing access to files.

In contrast, while Azure File Sync is useful for synchronizing file shares between on-premises and Azure, it is primarily focused on synchronizing ongoing changes rather than the initial migration itself. Data Box, while it serves as a physical method to transfer large amounts of data to Azure, does not specifically address SMB share properties in its scope. RoboCopy is a command-line tool used for file replication and migration; however, it lacks the cloud integration and management features required for a comprehensive server migration while preserving share properties as planned by Storage Migration Service.