Active standard | Published: 10/03/2023

ISO/IEC 30134-7-ed.1.0

Information technology - Data centres key performance indicators - Part 7: Cooling efficiency ratio (CER)

Available languages: English

Available design: electronic design (pdf), Print design, CD-ROM

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Detail information

Designation: ISO/IEC 30134-7-ed.1.0

Publication date: 10/03/2023

Pages: 16

Country: International technical standard

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Anotation

This document specifies the cooling efficiency ratio (CER) as a key performance indicator (KPI) for quantifying the efficient use of energy to control the temperature of spaces within a data centre (DC).

This document:

a) defines the CER of a DC;

b) describes the relationship of this KPI to a DC’s infrastructure, information technology equipment and information technology operations;

c) defines the measurement, the calculation and the reporting of the parameter; and

d) provides information on the correct interpretation of the CER.

Annex A describes the correlation of the CER and other KPIs.

Annex B provides examples of the usage of the CER.

Annex C introduces the parameters that affect the CER.

Annex D describes requirements and recommendations for derivatives of KPIs associated with the CER. This document is not applicable to cooling systems that are not powered by electricity (e.g. heat-driven absorption chillers).

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