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Data center tiers are classification levels used to quickly identify the complexity and redundancy of the data center infrastructure being utilized.
Data center tiers are a system used to describe specific kinds of data center 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 center tiers are an efficient way to describe the infrastructure components being utilized at a business's data center. Although a Tier 4 data center is more complex than a Tier 1 data center, 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 center. Through this modern approach, Tier 1 infrastructure is resilient, self-optimized, and non-disruptive to better serve all enterprise needs.