What are Data Centre Tiers?

Data centre tiers are classification levels used to quickly identify the complexity and redundancy of the data centre infrastructure being utilised.

Data centre tiers definition

Data centre tiers are a system used to describe specific kinds of data centre infrastructure in a consistent way. Tier 1 is the simplest infrastructure, while Tier 4 is the most complex and has the most redundant components. Each tier includes the required components of all the tiers below it.