psBAS ISO/IEC TS 22237-31:2024

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 KPIs 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.