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Modernizing Legacy Applications to Microsoft Azure

Modernizing Legacy Applications to Microsoft Azure

By : Steve Read, Larry Mead
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Modernizing Legacy Applications to Microsoft Azure

Modernizing Legacy Applications to Microsoft Azure

5 (3)
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)
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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

Migrating Solaris

Solaris was developed as a variant of System V UNIX by Sun Microsystems and was originally powered by a proprietary RISC-based CPU known as SPARC. Later versions of Solaris became available with x86-based computer chips.

Solaris enjoyed widespread adoption in the mid to late 1990s, and powered many of the .com solutions in the late 1990s and early 2000s. Sun was later acquired by Oracle after the .com boom ended. Solaris continues to be available for both SPARC and x86-based CPUs.

Solaris was widely used for the following:

  • Web servers
  • Relational databases
  • Enterprise applications, such as SAP
  • Lightweight Directory Access Protocol (LDAP) servers

Solaris was considered the most feature-rich variant of UNIX and was deployed in both commercial and government applications.

SPARC versus x86

SPARC versions of Solaris are typically older. But they are still in use today, especially for applications that require high-clock-speed CPUs....

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