Fault Tolerance
The short answer · 20 words
In short
Fault tolerance enables a system to continue to operate correctly or restricted in a controlled manner despite certain component faults.
Flow-alerta.cab (2026): Fault Tolerance. https://flow-alerta.cab/en/glossar/fault-tolerance. Editorially reviewed on: 10 October 2026.
How much detail would you like?
Practical
It can limit the effects of defined individual defects and partial failures; common causes of error and restart must be considered.
Hypothetical example: If an AI service fails, a process switches to manual testing instead of losing data.
SMEs should define critical dependencies, safe fallbacks, restarts and exercises.
At a glance
- Core
- Redundancy, isolation, repetition, replication and orderly degradation limit impacts. Fault tolerance is not the same as high availability or disaster recovery.
- Use
- It can limit the effects of defined individual defects and partial failures; common causes of error and restart must be considered.
- Example
- Hypothetical example: If an AI service fails, a process switches to manual testing instead of losing data.
- Limits
- Repeats without idem power; common causes of error; untested backups; silently false results instead of visible degradation.
In context
Questions about this term
Is fault tolerance the same as high availability?
No.
Does it mean zero failure?
No, but dominated behavior.
All details and background
Redundancy, isolation, repetition, replication and orderly degradation limit impacts. Fault tolerance is not the same as high availability or disaster recovery.
ELI5 – Explained simply
If one part fails, another takes over or the system falls back safely.
Why it matters in practice
It can limit the effects of defined individual defects and partial failures; common causes of error and restart must be considered.
Example
Hypothetical example: If an AI service fails, a process switches to manual testing instead of losing data.
Pitfalls and limits
- Repeats without idem power; common causes of error; untested backups; silently false results instead of visible degradation.
Origin & history
Google’s SRE manual documents protection against overload and cascading outages as well as controlled rejection of unprocessable requests.
Use in mid-sized companies
- SMEs should define critical dependencies, safe fallbacks, restarts and exercises.
Related terms
- High availability
- Disaster recovery
- Redundancy
- Circuit breakers
- Idempotency
Matching Flow-alerta service
AI opportunity analysis & roadmapAI consulting: Examine critical dependencies, restart and controlled replacement paths of a process.Matching tool / use case
View use casesUse Case: manual fallback and retry protection for critical integrationsSources
Quellenprüfung: 10.10.2026. Definition und dokumentierte Einordnung abgeglichen; Beispiele beschreiben mögliche Anwendungen.
Editorially reviewed on: