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Data Centre Tiers

Tier I Data Centers

Uptime: 99.671%

Cost-effective, entry-level infrastructure ideal for small businesses and non-critical IT environments.

Small businesses or non-critical operations with limited budget

Features
  • Single path for power and cooling
  • No backup components
  • Susceptible to disruptions from planned and unplanned activities

Tier II Data Centers

Uptime: 99.741%

N+1 redundant, scalable, reliable infrastructure for organizations ready for the next level of resilience.

Medium-sized businesses that need better reliability

Features
  • Some backup systems (e.g., generators, UPS)
  • Single path for power/cooling, but with redundant components
  • Improved protection against unplanned outages

Tier III Data Centers

Uptime: 99.982%

Concurrent maintainability, N+1 redundancy, and 99.982% uptime. Perfect for mission-critical operations.

Enterprises with mission-critical operations (e.g., financial institutions)

Features
  • Multiple paths for power and cooling (only one active at a time)
  • Components can be maintained without shutting down operations
  • Protection against most planned maintenance issues

Tier IV Data Centers

Uptime: 99.995%

2N+ redundancy and 99.995% uptime. Designed for maximum fault tolerance and high-security environments.

Organizations requiring zero downtime, like large-scale cloud providers, government, defense, and healthcare

Features
  • Fully redundant, independent systems
  • Can sustain unplanned failures without impacting operations
  • Highest level of reliability and security

Uptime Assurance

TCAMansour builds infrastructure that’s not just reliable—it’s engineered to stay online when it matters most.

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