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What is a Tier-3 Data Center

  • Writer: Rackbank Datacenter
    Rackbank Datacenter
  • Jul 29, 2015
  • 2 min read

Before we jump onto the description of Tier -3 data center, it is important to understand the hierarchy.Tier 1 to 4 data center is actually a standardized methodology used to define the uptime of a data center.

The Tier number designation to any data center is based on the evaluation of following parameters:

a) Data center performance b) Investment c) ROI (return on investment)

Tier 3 data centers are considered fairly robust and less prone to failures. Tier 3 is designed to host critical servers like dedicated server, vps servers with fully redundant subsystems (cooling, power, network links, storage etc.

Quite obvious, the simplest is a Tier 1 data center used by small business or shops.

  • Tier 1 = Non-redundant capacity components (single uplink and servers).

  • Tier 2 = Tier 1 + Redundant capacity components.

  • Tier 3 = Tier 1 + Tier 2 + Dual-powered equipment and multiple uplinks.

  • Tier 4 = Tier 1 + Tier 2 + Tier 3 + all components are fully fault-tolerant including uplinks, storage, chillers, HVAC systems, servers etc. Everything is dual-powered.

Data Center Availability According To Tiers

The Tier levels also describe the standard availability of data from the hardware at a location as follows:

  • Tier 1: Guaranteeing 99.671% availability

  • Tier 2: Guaranteeing 99.741% availability

  • Tier 3: Guaranteeing 99.982% availability

  • Tier 4: Guaranteeing 99.995% availability

Data center bandwidth

It is important to note that one should not confuse bandwidth tiers with datacenter tiers: These are two different logics to categorize servers. To add, there is no certification body for bandwidth tiers.

  • A tier 1 bandwidth provider is a provider that doesn’t pay for bandwidth – it’s independent.

  • A tier 2 provider peers with some network capacity but pays for access to the rest.

  • A tier 3 provider purchases all access from a third party – it is reliant on peers for its capacity.

Though some of the terminologies must be kept in mind while you start planning to evaluate a data center to outsource some of your IT operations:

  • The numbering system is reversed, with 1 being the best – not the worst.

  • Tier 1 bandwidth providers are considered to be the fastest and most reliable. However, hosts often have multiple providers, so the issue is rarely clear cut.

  • Numbering is only assigned on a scale of 1 to 3, not 1 to 4.

Summary

A Tier III data center offers 99.98% availability and data centers in this configuration provide facility to manage maintenance periods without affecting the continuity of service on the servers.

 
 
 

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Rackbank Datacenters Pvt. Ltd.
506, Capt, C.S. Naidu Arcade,
Old Palasia,
Indore, Madhya Pradesh
India - 452001
website: www.rackbank.com
Email: support@rackbank.com
Phone: 1800-102-0088

 

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