Katkestussüsteemid

Katkestussüsteemid, known in English as interruption systems or fault tolerance systems, are designed to ensure the continuous operation of a computer system or network even in the presence of hardware or software failures. The primary goal is to minimize downtime and data loss. These systems achieve reliability through redundancy, where critical components are duplicated. If one component fails, a backup or standby component immediately takes over, often without noticeable interruption to the end-user.

Common techniques employed in katkestussüsteemid include hardware redundancy, such as redundant power supplies, network interfaces, and processors. Software redundancy can involve running multiple instances of an application or service. Failover mechanisms are crucial, automatically detecting a failure and switching to a redundant component. Load balancing can also be a part of these systems, distributing workload across multiple components to prevent overload and, in some cases, to mask individual component failures.

Katkestussüsteemid are vital for mission-critical applications like financial transaction processing, telecommunications, emergency services, and cloud computing infrastructure, where even brief outages can have severe consequences. The design and implementation of these systems involve careful consideration of failure modes, detection methods, and recovery procedures to achieve high availability and resilience against disruptions.