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Data centre tiers are classification levels used to quickly identify the complexity and redundancy of the data centre infrastructure being utilised.
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.
Data centre tiers are an efficient way to describe the infrastructure components being utilised at a business's data centre. Although a Tier 4 data centre is more complex than a Tier 1 data centre, this does not necessarily mean it is best-suited for a business's needs. While investing in Tier 1 infrastructure might leave a business open to risk, Tier 4 infrastructure might be an over-investment.
HPE has worked to redefine what it means to have a Tier 1 data centre. Through this modern approach, Tier 1 infrastructure is resilient, self-optimised and non-disruptive to better serve all enterprise needs.