Part 1 - Understanding the Basics of Who, What, and Why

In this first part, you will learn about site reliability engineering, its roots, and current usage outside Google. We emphasize how the site reliability engineer (SRE) persona is the center of gravity of everything orbiting systems reliability. When we talk about site reliability engineering, it’s impossible to do so without a discussion about the business of software development, which we tie into not only statistics used for reliability but how those impact what companies are ultimately interested in, customer satisfaction and revenue. Finally, we’ll explore why the lack of reliability persists in organizations and discuss some of the lesser known truths that make site reliability engineering critical and complex.

The following chapters will be covered in this section:

• Chapter 1, SRE Job Role – Activities and Responsibilities
• Chapter 2, Fundamental Numbers – Reliability Statistics
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