General data center redundancy tier levels: The tier levels for data center redundancy, typically classified by the Uptime Institute, range from Tier I to Tier IV. Each tier reflects the complexity and redundancy of the data center’s infrastructure. Tier I represents the most basic level with no redundant components. Tier II includes some redundancy, Tier III features multiple paths for power and cooling and is concurrently maintainable, and Tier IV offers full fault tolerance with continuous uptime.
Categories: CC D4: Network Security | CCSP D3: Cloud Platform and Infrastructure Security | CISM D4: Incident Management | CISSP D7: Security Operations | Security+ D5: Security Program Management and Oversight | SSCP D4: Incident Response and Recovery
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