What is a tier 3 data centre?

Data centres are a powerful business resource, providing a secure environment to store information and run applications. Organisations can securely access essential data whenever needed by leveraging these data centres. Furthermore, data centres are designed to handle large traffic volumes while maintaining a low latency connection so that applications perform optimally.

However, data centres are classified by tiers, with each successive tier offering more stringent reliability and performance guarantees. Let’s talk about what a tier 3 data centre is.

Are you looking for a tier 3 data centre to store and process data? Get in touch with Stellium Data Centre today.

But what is a tier 3 data centre?

Tier 3 data centres are the highest facilities designed for uptime, security, and environmental control. The features that impact their classification includes redundant components (power supplies, cooling systems), backups (generators, UPSs), fault tolerance (N+1 redundancy), access control and network diversity (multiple carriers).

They also offer a higher level of reliability and redundancy than other tiers. Tier 3 data centres are typically found in enterprise organisations, government agencies, and large companies where downtime could spell disaster.


Tier 3 data centres provide several features that make them more reliable than other types of data centres. These features include redundant power sources, cooling systems and internet connections to ensure continuous operation during an outage. Tier 3 data centres also feature advanced fire suppression, security monitoring and environmental controls.


  1. The most significant advantage of using a tier 3 data centre is the guarantee of uptime and availability. Tier 3 data centres are designed to maintain 99.982% uptime, meaning they have less than an hour of downtime per year. This level of reliability is ideal for organisations with critical systems that require 24/7 operations.
  2. Additionally, the redundant systems in a tier 3 data centre reduce the risk of data loss or disruption due to power outages or other unforeseen events.

How do they compare with tier 1 and tier 2 data centres?

Tier 3 data centres offer higher reliability and redundancy than tier 1 and tier 2 data centres. Tier 1 data centres provide basic infrastructure, while tier 2 focuses on fault tolerance. Tier 3 takes it a step further by providing multiple levels of redundancy to ensure that the service is not disrupted in the event of an outage or other issues. Additionally, tier 3 centres often provide additional features such as advanced fire suppression and environmental controls. All three tiers are designed to offer different levels of reliability, depending on the organisation’s needs and budget.

Summing Up

Overall, tier 3 data centres are the highest level available and provide the most reliable environment for businesses to store sensitive information. They offer redundant systems, advanced security measures and environmental controls that make them a popular choice for organisations that need to ensure uptime and availability.

Therefore, when considering which type of data centre to use, organisations should consider their reliability and budget requirements. Tier 3 data centres may be more expensive than lower tiers, but they offer a higher level of reliability that can make them worth the investment.


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