Noun
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Sounds like: "tier three da-ta cen-ter"
A Tier 3 data center is the second-highest certification in the Uptime Institute’s system of classifying data center performance into four tiers.
In addition to meeting the requirements of Tier 1 and Tier 2 data centers, Tier 3 data centers must achieve the following:
- N+1 redundancy. Tier 3 data centers provide N+1 redundant power and cooling distribution paths to allow for routine maintenance without downtime.
- 72-hour outage protection. Three days of independent power that is not connected to any outside source is required.
- No more than 1.6 hours of downtime per year. This is the maximum amount of downtime allowed in a year for maintenance and emergencies.
- 99.982% uptime. Some downtime may occur for unplanned maintenance and emergencies. Customer-facing services may be impacted.
Tier 3 data centers are the most common certification by the Uptime Institute and are often utilized by organizations larger than a typical small- to medium-sized business. Tier 3 providers feature many of the offerings of Tier 4 providers but guarantee slightly less uptime and are not completely fault-tolerant.
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Data Center SwitchgearA data center switchgear refers to the critical infrastructure component within a data center that facilitates the efficient and reliable distribution of electrical power to various equipment and systems. It typically consists of electrical switchboards, circuit breakers, transformers, and other protective devices, all designed to regulate and control the flow of electricity.
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