data center. A data center (sometimes spelled datacenter) is a centralized repository(хранилище), either physical or virtual

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A data center (sometimes spelled datacenter) is a centralized repository(хранилище), either physical or virtual, for the storage, management, and dissemination (распространение) of data and information organized around a particular body of knowledge or pertaining(относящийся) to a particular business.

The National Climatic Data Center (NCDC), for example, is a public data center that maintains the world's largest archive of weather information. A private data center may exist within an organization's facilities or may be maintained as a specialized facility. According to Carrie Higbie, of Global Network Applications, every organization has a data center, although it might be referred to as a server room or even a computer closet.

In that sense, data center may be synonymous with network operations center (NOC), a restricted access area containing automated systems that constantly monitor server activity, Web traffic, and network performance.

data center tiers

A four tier system that provides a simple and effective means for identifying different data center site infrastructure design topologies. The Uptime Institute's tiered classification system is an industry standard approach to site infrastructure functionality addresses common benchmarking standard needs. The four tiers, as classified by The Uptime Institute include the following:

§ Tier 1: composed of a single path for power and cooling distribution, without redundant components, providing 99.671% availability.

§ Tier II: composed of a single path for power and cooling distribution, with redundant components, providing 99.741% availability

§ Tier III: composed of multiple active power and cooling distribution paths, but only one path active, has redundant components, and is concurrently maintainable, providing 99.982% availability

§ Tier IV: composed of multiple active power and cooling distribution paths, has redundant components, and is fault tolerant, providing 99.995% availability.

Дата добавления: 2015-08-27