Fault tolerance in IT refers to the ability of systems to function reliably even in the event of a failure. This requires careful planning and implementation of redundancies in hardware and software, to ensure the availability of a system.
Uninterruptible Power Supply (UPS) for Servers
Servers are the heart of many IT systems and require a continuous power supply. Modern, fail-safe servers therefore have two power supplies connected to different outlets and fuses to ensure an Uninterruptible Power Supply (UPS). This ensures that the server continues to operate during a power outage, as even a short outage can have serious consequences.
Redundant Network Infrastructure
Network cables, ports, and switches must also be designed redundantly so that the system continues to run if one element fails. This redundancy ensures that operations are not interrupted by individual hardware failures. Additionally, regular backups and monitoring tools should be implemented to detect and address potential problems early. Further measures for failsafe operation include, for example, the use of cloud services for data and service redundancy or geographically distributed data centers.
In summary, fault tolerance in IT means the careful planning and implementation of redundancies and security measures to ensure the continuous operation and availability of IT services, even if individual components fail.
