TIER III

Uptime Institute

A Concurrently Maintainable data center has redundant capacity components and multiple independent distribution paths serving the critical environment. For the electrical power backbone and mechanical distribution path, only one distribution path is required to serve the critical environment at any time.

All IT equipment is dual powered and installed properly to be compatible with the topology of the site’s architecture. Transfer devices, such as point-of-use switches, must be incorporated for critical environment that does not meet this requirement.