SRE vs DevOps: Can they coexist or do they compete?

Systems fail, sometimes publicly and at great cost. Airlines have experienced system-wide ticketing outages, causing hundreds of flight cancellations and significant inconvenience to customers. Retailers have experienced website crashes on the busiest shopping days of the year, costing millions in lost revenue and customer goodwill.

It is vital to understand both DevOps and SRE and the roles they play in preventing such outages.

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About the Authors

Jordan Pritchard

Director of Infrastructure & Site Reliability Engineering

Michael Kehoe

Architect of reliable, scalable infrastructure

Rodney Lester

Technical Lead, Reliability Pillar of Well Architected Program

Tammy Butow

Principal SRE

Jay Holler

Manager, Site Reliability Engineering

Ramin Keene

Founder

In this eBook, we cover:

  • What DevOps is and how it works, including success metrics and tools
  • What Site Reliability Engineering (SRE) is and how it can prevent incidents
  • How DevOps and SRE compare and whether both are needed to succeed in today's high velocity environments

  • Incident classification: SEV descriptions and levels, and SEV and time-to-detection (TTD) timelines

  • Organization-wide critical service monitoring, including key dashboards and KPI metrics emails

  • Service ownership and metrics for organizations maintaining a microservices architecture

  • Effective on-call principles for site reliability engineers, including rotation structure, alert threshold maintenance, and escalation practices

  • Chaos Engineering practices to identify random and unpredictable behavior in your system

  • Monitoring and metrics to detect incidents caused by self-healing systems

  • Creating a high-reliability culture by listening to people in your organization

Can we prevent outages in an era of such great velocity? We have gone from annual software releases to daily releases, from running software as a monolith to running hundreds of microservices, from on prem hosting on hundreds of physical hosts to Kubernetes, containers, and cloud hosts numbering sometimes into the hundreds of thousands.

Over a decade of collective experience unleashing chaos at companies like

Avoid downtime. Use Gremlin to turn failure into resilience.

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