This document:
defines metrics as key performance indicators (KPIs) for resilience, dependability, fault tolerance and availability tolerance for data centres;
covers the data centre infrastructure (DCI) of power distribution and supply, and environmental control;
can be referred to for covering further infrastructures, e.g. telecommunications cabling;
defines the measurement and calculation of the KPIs and resilience levels (RLs);
targets maintainability, recoverability and vulnerability;
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.
BSI recommends this version of standard for organisations operating in or with the UK. The ISO edition is available here if required.