CLC/TS 50600-4-31:2024

This document
a)  defines metrics as key performance indicators (KPIs) for resilience, dependability, fault tolerance and availability tolerance for data centres;
b)  covers the data centre infrastructure (DCI) of power distribution and supply, and environmental control;
c)  can be referred to for covering further infrastructures, e.g. telecommunications cabling;
d)  defines the measurement and calculation of the metrics and resilience levels (RLs);
e)  targets maintainability, recoverability and vulnerability;
f)  provides examples for calculating these KPIs for the purpose of analytical comparison of different DCIs.
This document does not apply to IT equipment, cloud services, software or business applications.