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 long term

We believe that legacy modernization will become more about the best place to run an application or system rather than moving everything from one platform to another. This includes both the transactions between legacy platforms and clouds and between clouds. Most large customers have both a hybrid (cloud and on-premises) strategy and a multi-cloud strategy. Additionally, we see even greater interoperability between these environments. This can take on several different experiences, including the following:

  • Management and monitoring from a single pane of glass (or dashboard). This includes both Azure and other hyperscale cloud providers. The best way to prepare for this type of journey to the future is with cloud-native deployments, such as those offered in Azure for both IaaS and Platform as a Service (PaaS) services.
  • Incorporate no/low touch application generation for legacy code on Azure.
  • We believe we will see more AI create code to...