What is Site Reliability Engineering? SRE Versus DevOps
What is Site Reliability Engineering? SRE Versus DevOps
Site reliability engineering (SRE) is the practice of applying engineering techniques to building, operating and maintaining applications at scale. SRE differs from traditional software engineering in that it focuses on the scalability and reliability of a system.
What is site reliability engineering?
Site reliability engineering (SRE) is a relatively new discipline that focuses on building reliable systems. SRE is a subset of DevOps, which itself is a subset of operations engineering and systems engineering. The goal of SRE is to help build software applications so they can be maintained and operated at scale without requiring constant intervention by human operators or teams.
SREs work closely with developers and product managers to ensure their products are designed for ease-of-use, maintainability, scalability and reliability from the beginning stages through launch into production environments where they’re used by customers or internal users such as employees within an organization’s walls (including those working remotely).
The origin of SRE
Site Reliability Engineering (SRE) is a new discipline that emerged out of Google in 2007. It has been around for over a decade, but it’s still considered a relatively new approach to systems engineering and operations.
As you might have guessed, SRE can be thought of as an extension or specialization of DevOps–but it’s also more than that: SRE combines the best practices from traditional software development with those from operations teams to create something entirely new. The goal is to develop processes that enable engineers to build reliable products faster than ever before by maximizing uptime through automation and instrumentation, while minimizing downtime through rapid diagnosis and correction when problems do arise.
How SRE differs from DevOps
SRE is more focused on reliability and long-term planning, whereas DevOps is more interested in speed and short-term results. SRE values stability over all else, while DevOps values innovation and adaptability.
SREs are responsible for the day-to-day operations of a company’s infrastructure, including monitoring performance and uptime; responding to outages; creating documentation around system architecture; troubleshooting problems; designing automation strategies; designing monitoring strategies; setting up alerting mechanisms so that you can be alerted when something goes wrong (or right); improving your systems’ resiliency through redundancy or fault tolerance–this list could go on forever!
Ken Thompson and Dennis Ritchie, two legends in the field of computing.
Ken Thompson and Dennis Ritchie are legends in the field of computing. They worked on the UNIX operating system, which is still used today. They also developed the C programming language, which remains one of the most popular languages for application development today.
Thompson and Ritchie created B (a predecessor to C) at Bell Labs in 1972 when they were working on Multics–an operating system that was never released commercially but inspired many future projects including Linux and Windows NT/XP/Vista/7/8/10 (yes, I know there’s no ‘9’ there…).
Site Reliability Engineering is a new discipline
Site Reliability Engineering is a new discipline. It’s not DevOps, and it’s not a role. Instead, SRE is focused on reliability and operations at scale.
DevOps is an approach to software development that promotes collaboration between developers and IT operations professionals in order to speed up the delivery of applications while maintaining high quality standards.
Site Reliability Engineering is a new discipline that combines the best practices of DevOps with engineering principles. SREs are responsible for building and maintaining systems that are reliable and operational 24/7, which requires a unique set of skills. In this article, we’ve explored what SRE is all about, how it differs from DevOps and why you should consider hiring someone with this expertise if you’re looking to build a world-class team.
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