Book Image

SQL Server on Azure Virtual Machines

By : Joey D'Antoni, Louis Davidson, Allan Hirt, John Martin, Anthony Nocentino, Tim Radney, Randolph West
Book Image

SQL Server on Azure Virtual Machines

By: Joey D'Antoni, Louis Davidson, Allan Hirt, John Martin, Anthony Nocentino, Tim Radney, Randolph West

Overview of this book

Deploying SQL Server on Azure virtual machines allows you to work on full versions of SQL Server in the cloud without having to maintain on-premises hardware. The book begins by introducing you to the SQL portfolio in Azure and takes you through SQL Server IaaS scenarios, before explaining the factors that you need to consider while choosing an OS for SQL Server in Azure VMs. As you progress through the book, you'll explore different VM options and deployment choices for IaaS and understand platform availability, migration tools, and best practices in Azure. In later chapters, you'll learn how to configure storage to achieve optimized performance. Finally, you'll get to grips with the concept of Azure Hybrid Benefit and find out how you can use it to maximize the value of your existing on-premises SQL Server. By the end of this book, you'll be proficient in administering SQL Server on Microsoft Azure and leveraging the tools required for its deployment.
Table of Contents (10 chapters)
8
Index

Application considerations

While moving the database elements to the cloud, it is important for us to not forget the application layer. For any cloud migration, it is important to consider application details such as its location and its sensitivity to latency. Building hybrid environments where the application remains on-premises while the database is hosted in an Azure VM is entirely plausible. However, if the application cannot handle the increased latency to the database, then you should really consider moving the application into the cloud. By doing so you can eliminate a large portion of the latency.

Beyond that, we need to really understand the way that the application authenticates to the SQL Server database. By lifting and shifting to an Azure VM we can avoid the need to re-engineer an application to support Azure AD for PaaS systems. If we are looking to include SQL Server on Linux as part of our migration, there are some additional steps we need to perform to configure...