Elastic pools allow for a flexible and cost-efficient way to allocate resources across multiple databases that have varying and unpredictable usage patterns. In this setup, it is crucial to configure both eDTUs (elastic Database Transaction Units) and the maximum data size to ensure that the aggregate resource usage of all databases is adequately managed. This approach helps to optimize performance and control costs by balancing resources among databases as needed.
Azure SQL Database Managed Instance is the best option for migrating several on-premises Microsoft SQL Server databases to Microsoft Azure using a backup process. Managed Instance provides near 100% compatibility with the latest SQL Server on-premises (Enterprise Edition) Database Engine, ensuring minimal changes to the application and database during the migration. It also offers a native virtual network (VNet) implementation, addressing common security concerns. This deployment option also supports automated patching and high availability, reducing management overhead and total cost of ownership (TCO).
To implement a solution that deploys multiple HDInsight clusters with minimal effort, Azure Resource Manager templates are the most suitable choice. These templates allow for the creation and deployment of resources in a single coordinated operation, which includes HDInsight clusters and their dependencies. Additionally, the templates support defining deployment parameters that enable rapid and repeatable cluster creation and destruction, thus saving significant time for the data engineering team.