Fault Tolerance
Fault Tolerance is the ability of a system to continue functioning even in the presecne of failures. Redundancy is a key component of fault tolerance, but it also includes error detection, error correction and graceful degradation. Systems with high fault tolerance can provide uninterrupted service despite failures.
Redundancy | System Design
In Computer Science, redundancy means having backups or duplicates of things to make sure your computer systems keep working even if something breaks. Imagine you have important files on your computer. If you only have them in one place and your computer crashes or the files get deleted, you’ll lose everything. But if you also keep copies of those files on an external hard drive or in the cloud, that’s redundancy.
Redundancy helps prevent big problems when things go wrong. It can be applied to different parts of a computer system, like having extra computer servers, multiple copies of data, or backup internet connections. This way, if one part fails, the redundant one takes over, and everything keeps running smoothly.
Important Topics for Redundancy in System Design
- Types of Redundancies
- Understanding Active and Passive Redundancy in System Design
- Role of Load Balancing in Redundancy
- Failover Mechanisms:
- Testing and Validation
- Fault Tolerance
- Metrics
- Real-life Applications of Redundancy