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Datacenter
Datacenter Uptime
Datacenter uptime is the percentage of time a facility is operational, typically expressed as a percentage over a year.
Definition
Datacenter uptime is the measure of a datacenter's operational availability, expressed as a percentage of total time. Industry standards: Tier I = 99.671% (28.8h downtime/yr), Tier II = 99.741% (22h), Tier III = 99.982% (1.6h), Tier IV = 99.995% (26 min). Harch Corp guarantees 99.99% uptime (52 min downtime/year) for its GPU cloud platform, backed by 2N redundancy, automatic failover, and 24/7 NOC monitoring. Uptime is measured using SLA credits — if uptime falls below the guaranteed level, customers receive service credits.
Related Keywords
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Related Terms
Datacenter Redundancy
Datacenter redundancy is the duplication of critical components to ensure continuous operation if one fails.
Tier III Datacenter
A Tier III datacenter has redundant power and cooling with 99.982% availability (N+1 redundancy).
SLA (Service Level Agreement)
An SLA is a contract defining the guaranteed level of service, including uptime, performance, and support response.