Redundancy and Failover Mechanisms
Implement strategies to eliminate single points of failure using redundancy and automatic failover.
What is a Single Point of Failure?
Imagine a crucial part of your system stopping unexpectedly. What happens?
A Single Point of Failure (SPOF) is any component whose failure would cause the entire system to stop working.
Designing for high availability means building systems that keep running even when individual parts fail.
The Core Idea: Redundancy
To combat SPOFs, we use redundancy. This means having duplicate components or systems ready to take over.
Think of it like having a spare tire for your car. If one tire fails, you have another ready to go.
In system design, redundancy ensures that if one component fails, another can immediately step in.
All lessons in this course
- Redundancy and Failover Mechanisms
- Disaster Recovery Planning
- Monitoring, Alerting, and Logging
- Circuit Breakers and Graceful Degradation