What is Failure Domain?
Failure Domain A distinct section of infrastructure, service, or application whose failure is isolated and does not impact other domains, enabling targeted fault tolerance and risk management.
Source: ITIL v4, AWS Well-Architected Framework, Kubernetes Documentation, CNCF
How is “Failure Domain” Used in Practice?
Cloud regions and availability zones are designed as separate failure domains to limit the blast radius of outages.
Certification Exam Relevance
Who Needs to Know This Term?
- DevOps Engineers
- SREs
- Platform Engineers
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What is Failure Domain?
A distinct section of infrastructure, service, or application whose failure is isolated and does not impact other domains, enabling targeted fault tolerance and risk management.
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