Tier 1 Data Center Requirements

Tier 1 Data Center Requirements categorization levels were created by the Uptime Institute more than 25 years ago. They continue to serve as the global standard for data center performance today. Our data center Tier definitions explain the infrastructure required for data center operations. According to the needed level of system availability, tiers are assigned.

These categories are reliable and objective methods for comparing the infrastructure performance of various sites and coordinating infrastructure investments with corporate goals.

As the creator and most reputable source for data center Tier Certification, Uptime Institute, you can rely on our Tier Certification ratings to evaluate your capabilities and meet your Tier 1 Data Center Requirements.

What Elements Impact a Data Center’s Tier?

Based on standards for electricity, cooling, maintenance procedures, redundancy (i.e., duplicating important components), and fault tolerance. The Uptime Institute’s tier certification rates data centers.

What Elements Impact a Data Center's Tier

The particular technology and suppliers that are supplying the facilities are irrelevant to these ratings, though. As a result, data centers are evaluated only on their capabilities rather than the company from which they acquire their HVAC and electrical equipment (e.g., Schneider Electric, Eaton, and Vertiv).

Tier 1 Data Center Requirements – Essential Infrastructure

Tier 1 Data Center Requirements – Essential Infrastructure

The most essential infrastructure level for supporting information technology in the workplace and beyond is Tier-1 data centers. The following requirements must be met by Tier 1 Data Center Requirements facilities:

  1. A particular cooling system that is active after hours.
  2. An engine powers a generator in the event of a power outage.
  3. Use an uninterruptible power supply for power sags, outages, and spikes (UPS).
  4. A place where computers are located.

Tier-1 protects from human error but not against unexpected failure or outages. Examples of redundant equipment include pumps, generators, UPS modules, and chillers. The plant will need to shut down for preventative maintenance and repairs. Otherwise, there is a risk of unplanned intermissions and catastrophic system failure.


To sum up, while selecting a data center, you must consider both accessibility and your IT needs. Tier 1 Data Center Requirements and Tier-2 data centers are often not ideal for mission-critical workloads, but if you have no other option and a backup strategy in place to govern how the business functions during outages. Keep just the workloads that are necessary for Tier-3 and Tier-4 data centers.

Related Article 

tier 1 tier 2 tier 3 data center

data center tier 3 requirements

tier data center classification

data center tier 3 standards

Tier 2 Data Center Uptime

Tier 3 Certification Data Center

Tier 2 Data Center Requirements




Flash Sale

Hurry Up! Offer ends in
02 days
20 hrs
28 mins
32 secs
Buy Now