nedetider

Nedetider is the periods during which a system, service or network is unavailable or its performance falls below agreed standards. It is commonly used in information technology, telecommunications and utilities to describe both scheduled downtime for maintenance and unscheduled outages.

Planned nedetider occur during maintenance windows when updates, upgrades or hardware replacements are performed. Unplanned nedetider result from faults, outages, capacity constraints, misconfigurations or external factors such as power outages, environmental incidents or cyber incidents. Downtime can be total (service is offline) or partial (reduced functionality or degraded performance).

To measure nedetider, organizations track metrics such as uptime percentage, mean time between failures (MTBF), mean time to repair (MTTR) and service level agreements (SLAs). Downtime incurs costs including revenue loss, customer dissatisfaction and compliance risks.

Management involves proactive measures: redundancy, failover, load balancing, caching and content delivery networks; robust monitoring and alerting; change management; and incident response processes. Communication during nedetider is important, including status updates and estimated restoration times. After incidents, post-incident reviews or postmortems are used to identify root causes and prevent recurrence.

Best practices include scheduling maintenance during low-demand periods, notifying stakeholders in advance, documenting expected service impact, and defining escalation paths. In IT service management and reliability engineering, nedetider are managed as part of availability and continuity planning.

See also uptime, service availability, maintenance window, SLA, ITSM, MTTR, MTBF, disaster recovery.