2. Service tiers
Azure provides multiple service (performance) tiers for Azure SQL Database and SQL Managed Instance. There are two purchasing options, the Database Transaction Unit (DTU) model and the vCore model. Each purchasing option has multiple service tiers. The purchasing option and service tier define the performance and cost of an SQL managed database. In this chapter, we'll look at the different purchasing options and service tiers and learn how to choose an appropriate starting performance tier when migrating to an SQL managed database.
We will learn about:
- DTUs and the vCore purchasing model
- Different service tier options for SQL Database and SQL Managed Instance
- Using Data Migration Assistant (DMA) to get service tier recommendations when migrating an on-premises SQL Server workload to SQL Database and SQL Managed Instance
Let's get started with understanding the DTU model.