The functioning of data centers depends on the successful and consistent operation of electrical and mechanical, as well as other engineering systems.

Each subsystem and system must be designed and built in a consistent manner, with the expectation of the same final degree of reliability of the object, meeting the requirements of a certain Tier level.

Data Center Tier Certification (Tier I, Tier II, Tier III, Tier IV) is certified by the Uptime Institute.

Levels (Tiers )of site infrastructure:

• Tier I - basic infrastructure of the site;
• Tier II - site infrastructure with redundancy of components;
• Tier III - infrastructure with the ability to service without shutting down the payload;
• Tier IV - Failover Site Infrastructure.

Building a data center according to one of the Tier levels allows you to build a reliable data center. Data center certification at these levels will allow the customer to attract investment and new customers.