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 this book covers

Chapter 1, Understanding Your Legacy Environment - the Modernization Journey, looks at existing legacy environments to get a baseline on the scope of modernization.

Chapter 2, Strategies for Modernizing IBM and Unisys Mainframes, specifically looks at IBM and Unisys mainframes, and the options for migrating these to Azure.

Chapter 3, Midrange to Azure, looks at options for systems that run on IBM Power, including iSeries and AIX.

Chapter 4, Modernizing Legacy UNIX Systems, looks at options for Enterprise UNIX systems, such as Solaris and HP-UX.

Chapter 5, An Overview of the Microsoft Azure Cloud Platform, looks at the various options of the Azure Cloud platform as related to migrating legacy applications.

Chapter 6, Azure Cloud Architecture Overview for Mission-Critical Workloads, looks at the capabilities and approaches for creating mission-critical systems on Azure.

Chapter 7, Behold the Monolith – Pros and Cons of a Monolithic Architecture, looks at why many legacy applications are monoliths, and the options for moving to Azure.

Chapter 8, Exploring Deployment Options in Azure, looks at strategies for actually moving the legacy applications and data to Azure.

Chapter 9, Modernization Strategies and Patterns - the Big Picture, covers strategies for moving to Azure. This includes rehosting, refactoring, and rewriting. Additionally, we cover the big bang or phased approach.

Chapter 10, Modernizing the Monolith - Best Practices, specifically looks at the challenges of modernizing monolith applications to Azure.

Chapter 11, Integration - Playing Friendly in a Cloud-Native World, looks at best practices for running in the Azure cloud.

Chapter 12, Planning for the Future - Trends to Be Aware of, looks at trends for future Azure features, and how these trends may affect your modernization.