Nedetiden

Nedetiden refers to the period during which a system, service or component is unavailable or not operating as intended. In information technology, it is commonly called downtime and serves as a key measure of availability. Nedetiden can be planned (for maintenance or upgrades) or unplanned (due to hardware failures, software bugs, network outages, power problems or cyber incidents).

Availability is usually expressed as a percentage of time in a given interval; nedetiden is the complement. Common metrics include MTTR (mean time to repair) and MTBF (mean time between failures), and targets are often set in service level agreements. High-availability designs seek minimal nedetiden, often described in terms of "nines" of uptime.

The impact of nedetiden ranges from lost productivity to revenue loss and customer dissatisfaction, with greater risk in critical sectors. In regulated industries, nedetiden can also have compliance implications.

Mitigation focuses on reducing both the likelihood and duration of outages. Key strategies include redundancy and automatic failover, thorough monitoring and rapid incident response, regular backups, and tested disaster recovery plans. Planning for maintenance windows and clear communication with users also helps manage nedetiden. Cloud services, distributed architectures and proven operational practices can further improve resilience by spreading risk and enabling quicker recovery.