What are some examples of fault tolerance in systems?

What are some examples of fault tolerance in systems?

Fault tolerance refers to the ability of a system to continue operating properly in the event of a failure. Examples include RAID systems in data storage, where data is mirrored across multiple disks, and cloud services that automatically reroute traffic if a server goes down.

Can you explain how RAID works in more detail?

Sure! RAID stands for Redundant Array of Independent Disks. It combines multiple hard drives into a single unit to improve performance and provide redundancy. For instance, RAID 1 mirrors data across two drives, so if one fails, the other still has the data.

What about fault tolerance in software applications?

In software, fault tolerance can be achieved through techniques like exception handling, where the application can gracefully handle errors without crashing. Another example is microservices architecture, where if one service fails, others can continue to function.

Are there any real-world applications of fault tolerance?

Yes, many! For example, online banking systems use fault tolerance to ensure transactions are processed even if some components fail. Similarly, airline reservation systems implement fault tolerance to maintain service availability.