Data center Management
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A data centre is a facility used to house computer systems and associated components, such as telecommunications and storage systems. It generally includes redundant[clarification needed] or backup power supplies, redundant data communications connections, environmental controls (e.g. air conditioning, fire suppression) and various security devices. A large data centre is an industrial-scale operation using as much electricity as a small town
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Data centres have their roots in the huge computer rooms of the early ages[when?] of the computing industry. Early computer systems, complex to operate and maintain, required a special environment in which to operate. Many cables were necessary to connect all the components, and methods to accommodate and organize these were devised such as standard racks to mount equipment, raised floors, and cable trays (installed overhead or under the elevated floor). A single mainframe required a great deal of power, and had to be cooled to avoid overheating. Security became important – computers were expensive, and were often used for military purposes. Basic design-guidelines for controlling access to the computer room were therefore devised.
R e q u ire m en ts f o r m o d e rn d a ta ce n tr es
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IT operations are a crucial aspect of most organizational operations around the world. One of the main concerns is business continuity; companies rely on their information systems to run their operations. If a system becomes unavailable, company operations may be impaired or stopped completely. It is necessary to provide a reliable infrastructure for IT operations, in order to minimize any chance of disruption. Information security is also a concern, and for this reason a data center has to offer a secure environment which minimizes the chances of a security breach. A data center must therefore keep high standards for assuring the integrity and functionality of its hosted computer environment. This is accomplished through redundancy of mechanical cooling and power systems (including emergency backup power generators) serving the data center along with fiber optic cables. The Telecommunications Industry Association's Telecommunications Infrastructure Standard for Data Centers specifies the minimum requirements for telecommunications infrastructure of data centers and computer rooms including single tenant enterprise data centers and multi-tenant Internet hosting data centers. The topology proposed in this document is intended to be applicable to any size data center.
Data center levels and tiers
Today many data centers are run by Internet service providers solely for the purpose of hosting their own and third party servers. However traditionally data centers were either built for the sole use of one large company, or as carrier hotels or Network-neutral data centers. These facilities enable interconnection of carriers and act as regional fiber hubs serving local business in addition to hosting content servers. The Telecommunications Industry Association is a trade association accredited by ANSI (American National Standards Institute). In 2005 it published ANSI/TIA942, Telecommunications Infrastructure Standard for Data Centers, which defined four levels of data centers in a thorough, quantifiable manner.[18] TIA942 was amended in 2008, 2010, 2014 and 2017. TIA-942:Data Center Standards Overview describes the requirements for the data center infrastructure. The simplest is a Level 1 data center, which is basically a server room, following basic guidelines for the installation of computer systems. The most stringent level is a Level 4 data center, which is designed to host the most mission critical computer systems, with fully redundant subsystems, the ability to continuously operate for an indefinite period of time during primary power outages.
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