Book Image

Modernizing Legacy Applications to Microsoft Azure

By : Steve Read, Larry Mead
Book Image

Modernizing Legacy Applications to Microsoft Azure

By: Steve Read, Larry Mead

Overview of this book

Organizations have varying circumstances, objectives, and prerequisites when contemplating a hyper-scale cloud solution transformation to a platform such as Azure. Modernizing Legacy Applications to Microsoft Azure uncovers potential scenarios and provides choices, methodologies, techniques, and prospective possibilities for transitioning from legacy applications to the Microsoft Azure environment. You’ll start by understanding the legacy systems and the main concerns regarding migration. Then, you’ll investigate why distributed architectures are compelling and the various components of the Azure platform needed during migration. After that, you’ll explore the approaches to modernizing legacy applications and the Rs of modernizing (i.e., rehost, refactor, rearchitect, and retire). You’ll also learn about integration approaches and potential pitfalls. By the end of this book, you’ll be well equipped to modernize your legacy workloads while being aware of pitfalls and best practices.
Table of Contents (18 chapters)
1
Part 1: Legacy Estate Options
3
Chapter 2: Strategies for Modernizing IBM and Unisys Mainframes
6
Part 2: Architecture Options
10
Part 3: Azure Deployment and Future Considerations

What to expect in the near term

To be clear, let’s define what near term means for the context of this book. We are in 2023 and for the most part, the near term can be considered to be the next 1 to 2 years. Most of what we have outlined and described in this book will still be very relevant. Of course, you would have to have been under a rock for the last year to not know about the advances in AI, especially with Microsoft and OpenAI. We will touch on this in the next section. This will no doubt affect code transformation and perhaps other areas as well.

The main vendor solutions are usually very mature and will be around for quite some time, but Azure, as with all cloud platforms, is evolving very fast. Now, let’s take a look at what to expect in the long term.