Standards bodyTier IVA published standard from Standards body, referenced across the Anvilfield field guides below.Referenced across 5 Anvilfield field guides. Field guides that apply Tier IVDatacenterDatacenterData center disaster recoveryDatacenterData center tier classificationDatacenterData center types field guideDatacenterLiquid cooling concurrent maintainabilityDatacenterUPS topology and redundancy design Often cited alongsideUptime InstituteTIA-942Tier IIITier IASHRAE TC 9.9 Compare your optionsN+1 redundancy vs 2N redundancyOnline double-conversion UPS vs Line-interactive UPS Browse all codes and standards