As more customers build more powerful applications in Azure using Azure SQL Database, we've seen strong demand for more options to scale performance and database size. To help meet this demand, we’ve announced two new performance levels within our Premium service tier: P4 and P11. P4 makes it easier for customers to scale performance with more granularity and P11 offers greater performance and larger database size. As previously announced, the P6 offering is now available to replace P3, with no impact to database cost or service.
Through October 31, 2015, regions other than South Central US will have one promotional rate for P4 and P11. Regional rates will be effective starting November 1, 2015. Customers who create or assign performance levels in code or scripts can visit the Create Database
documentation webpage for more information.
One of the advantages of running SQL Database on Azure is the ability to dynamically change
database performance to adapt to changing workload demands. These new performance levels help you to scale your performance and meet the demands of your application workloads. For more information, please visit the SQL Database