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53-558: The offerings of Fujitsu Siemens Computers extended from handheld and notebook PCs through desktops, server and storage, to IT data center products and services. Fujitsu Siemens Computers had a presence in key markets across Europe, the Middle East and Africa, while products marketed elsewhere were sold under the Fujitsu brand, with the services division extending coverage up to 170 countries worldwide. Fujitsu Siemens Computers placed

106-558: A light bulb with a power rating of 100 W is turned on for one hour, the energy used is 100 watt hours (W·h), 0.1 kilowatt hour, or 360  kJ . This same amount of energy would light a 40-watt bulb for 2.5 hours, or a 50-watt bulb for 2 hours. Power stations are rated using units of power, typically megawatts or gigawatts (for example, the Three Gorges Dam in China is rated at approximately 22 gigawatts). This reflects

159-423: A Bell Atlantic line is cut, we can transfer them to ... to minimize the time of outage." The term cloud data centers (CDCs) has been used. Data centers typically cost a lot to build and maintain. Increasingly, the division of these terms has almost disappeared and they are being integrated into the term data center . The global data center market saw steady growth in the 2010s, with a notable acceleration in

212-492: A constant opposing force of one newton , the rate at which work is done is one watt. 1   W = 1   J / s = 1   N ⋅ m / s = 1   k g ⋅ m 2 ⋅ s − 3 . {\displaystyle \mathrm {1~W=1~J{/}s=1~N{\cdot }m{/}s=1~kg{\cdot }m^{2}{\cdot }s^{-3}} .} In terms of electromagnetism , one watt

265-520: A data center may reach as high as 92-96 dB(A). Residents living near data centers have described the sound as "a high-pitched whirring noise 24/7", saying “It’s like being on a tarmac with an airplane engine running constantly ... Except that the airplane keeps idling and never leaves.” External sources of noise include HVAC equipment and energy generators. The field of data center design has been growing for decades in various directions, including new construction big and small along with

318-454: A data center to grow and change over time. Data center modules are pre-engineered, standardized building blocks that can be easily configured and moved as needed. A modular data center may consist of data center equipment contained within shipping containers or similar portable containers. Components of the data center can be prefabricated and standardized which facilitates moving if needed. Temperature and humidity are controlled via: It

371-493: A data center. In 2020, data centers (excluding cryptocurrency mining) and data transmission each used about 1% of world electricity. Although some of this electricity was low carbon, the IEA called for more "government and industry efforts on energy efficiency, renewables procurement and RD&D", as some data centers still use electricity generated by fossil fuels. They also said that lifecycle emissions should be considered, that

424-608: A focus on "green" computers , and was considered a leader or innovator in Green IT, across ecological and environmental markings such as Energy Star and Nordic swan . Fujitsu Siemens sponsored McLaren Mercedes Formula-1 team in 1999 and 2000 . On the Fujitsu side, the origins of the company could be traced back to the mid-1980s merger of the PC divisions of Finnish Nokia and Swedish Ericsson , when Ericsson PCs were known for their ergonomics and bright colors. In 1991, Nokia Data

477-459: A range of underfloor panels can create efficient cold air pathways directed to the raised-floor vented tiles. Either the cold aisle or the hot aisle can be contained. Another option is fitting cabinets with vertical exhaust duct chimneys . Hot exhaust pipes/vents/ducts can direct the air into a Plenum space above a Dropped ceiling and back to the cooling units or to outside vents. With this configuration, traditional hot/cold aisle configuration

530-407: A traditional method of data center upgrades that takes a serial and siloed approach. The typical projects within a data center transformation initiative include standardization/consolidation, virtualization , automation and security. A raised floor standards guide named GR-2930 was developed by Telcordia Technologies , a subsidiary of Ericsson . Although the first raised floor computer room

583-541: A turbine, which generates 648 MW e (i.e. electricity). Other SI prefixes are sometimes used, for example gigawatt electrical (GW e ). The International Bureau of Weights and Measures , which maintains the SI-standard, states that further information about a quantity should not be attached to the unit symbol but instead to the quantity symbol (e.g., P th = 270 W rather than P = 270 W th ) and so these unit symbols are non-SI. In compliance with SI,

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636-495: A unit of time, namely 1 J/s. In this new definition, 1 absolute watt = 1.00019 international watts. Texts written before 1948 are likely to be using the international watt, which implies caution when comparing numerical values from this period with the post-1948 watt. In 1960, the 11th General Conference on Weights and Measures adopted the absolute watt into the International System of Units (SI) as

689-531: Is also a concern, and for this reason, a data center has to offer a secure environment that 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. Industry research company International Data Corporation (IDC) puts the average age of a data center at nine years old. Gartner , another research company, says data centers older than seven years are obsolete. The growth in data (163 zettabytes by 2025 )

742-946: Is an industrial-scale operation using as much electricity as a medium town. Estimated global data center electricity consumption in 2022 was 240–340  TWh , or roughly 1–1.3% of global electricity demand. This excludes energy used for cryptocurrency mining, which was estimated to be around 110 TWh in 2022, or another 0.4% of global electricity demand. The IEA projects that data center electric use could double between 2022 and 2026. High demand for electricity from data centers, including by cryptomining and artificial intelligence , has also increased strain on local electric grids and increased electricity prices in some markets. Data centers can vary widely in terms of size, power requirements, redundancy, and overall structure. Four common categories used to segment types of data centers are onsite data centers, colocation facilities, hyperscale data centers, and edge data centers. Data centers have their roots in

795-559: Is important that computers do not get humid or overheat, as high humidity can lead to dust clogging the fans, which leads to overheat, or can cause components to malfunction, ruining the board and running a fire hazard. Overheat can cause components, usually the silicon or copper of the wires or circuits to melt, causing connections to loosen, causing fire hazards. Backup power consists of one or more uninterruptible power supplies , battery banks, and/or diesel / gas turbine generators. To prevent single points of failure , all elements of

848-451: Is including embodied emissions, such as in buildings. Data centers are estimated to have been responsible for 0.5% of US greenhouse gas emissions in 2018. Some Chinese companies, such as Tencent , have pledged to be carbon neutral by 2030, while others such as Alibaba have been criticized by Greenpeace for not committing to become carbon neutral. Google and Microsoft now each consume more power than some fairly big countries, surpassing

901-733: Is named after the Scottish inventor James Watt . The unit name was proposed by C. William Siemens in August 1882 in his President's Address to the Fifty-Second Congress of the British Association for the Advancement of Science . Noting that units in the practical system of units were named after leading physicists, Siemens proposed that watt might be an appropriate name for a unit of power. Siemens defined

954-458: Is not a requirement. Data centers feature fire protection systems, including passive and Active Design elements, as well as implementation of fire prevention programs in operations. Smoke detectors are usually installed to provide early warning of a fire at its incipient stage. Although the main room usually does not allow Wet Pipe-based Systems due to the fragile nature of Circuit-boards , there still exist systems that can be used in

1007-495: Is one factor driving the need for data centers to modernize. Focus on modernization is not new: concern about obsolete equipment was decried in 2007, and in 2011 Uptime Institute was concerned about the age of the equipment therein. By 2018 concern had shifted once again, this time to the age of the staff: "data center staff are aging faster than the equipment." The Telecommunications Industry Association 's Telecommunications Infrastructure Standard for Data Centers specifies

1060-418: Is similar to how large-scale food companies refrigerate and store their products. Computer cabinets/ Server farms are often organized for containment of hot/cold aisles. Proper air duct placement prevents the cold and hot air from mixing. Rows of cabinets are paired to face each other so that the cool and hot air intakes and exhausts don't mix air, which would severely reduce cooling efficiency. Alternatively,

1113-523: Is the rate at which electrical work is performed when a current of one ampere (A) flows across an electrical potential difference of one volt (V), meaning the watt is equivalent to the volt-ampere (the latter unit, however, is used for a different quantity from the real power of an electrical circuit). 1   W = 1   V ⋅ A . {\displaystyle \mathrm {1~W=1~V{\cdot }A} .} Two additional unit conversions for watt can be found using

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1166-530: Is used to quantify the rate of energy transfer . The watt is named in honor of James Watt (1736–1819), an 18th-century Scottish inventor , mechanical engineer , and chemist who improved the Newcomen engine with his own steam engine in 1776. Watt's invention was fundamental for the Industrial Revolution . When an object's velocity is held constant at one meter per second against

1219-639: The Kilo and Lohja factories in Finland . Components, including motherboards and Ethernet network adapters were manufactured locally, until production was moved to Taiwan . Internationally the MikroMikko line was marketed by Fujitsu as the ErgoPro . Also on the Fujitsu side, the company fully acquired Amdahl corporation in 1997 which was a manufacturer of IBM compatible mainframes. The mainframe market

1272-457: The dot-com bubble of 1997–2000. Companies needed fast Internet connectivity and non-stop operation to deploy systems and to establish a presence on the Internet. Installing such equipment was not viable for many smaller companies. Many companies started building very large facilities, called internet data centers (IDCs), which provide enhanced capabilities, such as crossover backup: "If

1325-619: The U.S. accounts for roughly 40 percent of the global market. A study published by the Electric Power Research Institute (EPRI) in May 2024 estimates U.S. data center power consumption could range from 4.6% to 9.1% of the country’s generation by 2030. As of 2023, about 80% of U.S. data center load was concentrated in 15 states, led by Virginia and Texas. Modernization and data center transformation enhances performance and energy efficiency . Information security

1378-470: The above equation and Ohm's law . 1   W = 1   V 2 / Ω = 1   A 2 ⋅ Ω , {\displaystyle \mathrm {1~W=1~V^{2}/\Omega =1~A^{2}{\cdot }\Omega } ,} where ohm ( Ω {\displaystyle \Omega } ) is the SI derived unit of electrical resistance . The watt

1431-641: The company, Siemens Nixdorf Informationssysteme , was the result of the merger of Nixdorf Computer with Siemens ' data and information technology branch. In 2003, the company won the Wharton Infosys Business Transformation Award for their use of information technology in an industry-transforming way. It was announced in November 2008 that Fujitsu would buy out Siemens' stake in the joint venture for approximately €450m with effect from April 1, 2009. Fujitsu Siemens

1484-445: The consumption of more than 100 countries. The most commonly used energy efficiency metric for data centers is power usage effectiveness (PUE), calculated as the ratio of total power entering the data center divided by the power used by IT equipment. Watt The watt (symbol: W ) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m ⋅s . It

1537-518: The creative re-use of existing facilities, like abandoned retail space, old salt mines and war-era bunkers. Local building codes may govern the minimum ceiling heights and other parameters. Some of the considerations in the design of data centers are: Various metrics exist for measuring the data-availability that results from data-center availability beyond 95% uptime, with the top of the scale counting how many nines can be placed after 99% . Modularity and flexibility are key elements in allowing for

1590-489: The data center is large or contains sensitive information. Fingerprint recognition mantraps are starting to be commonplace. Logging access is required by some data protection regulations; some organizations tightly link this to access control systems. Multiple log entries can occur at the main entrance, entrances to internal rooms, and at equipment cabinets. Access control at cabinets can be integrated with intelligent power distribution units , so that locks are networked through

1643-494: The electrical systems, including backup systems, are typically given redundant copies , and critical servers are connected to both the A-side and B-side power feeds. This arrangement is often made to achieve N+1 redundancy in the systems. Static transfer switches are sometimes used to ensure instantaneous switchover from one supply to the other in the event of a power failure. Options include: Air flow management addresses

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1696-593: 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. During the microcomputer industry boom of the 1980s, users started to deploy computers everywhere, in many cases with little or no care about operating requirements. However, as information technology (IT) operations started to grow in complexity, organizations grew aware of

1749-515: The energy company Ørsted A/S uses the unit megawatt for produced electrical power and the equivalent unit megajoule per second for delivered heating power in a combined heat and power station such as Avedøre Power Station . When describing alternating current (AC) electricity, another distinction is made between the watt and the volt-ampere . While these units are equivalent for simple resistive circuits , they differ when loads exhibit electrical reactance . Radio stations usually report

1802-403: The equipment intended for installation in those spaces. These criteria were developed jointly by Telcordia and industry representatives. They may be applied to data center spaces housing data processing or Information Technology (IT) equipment. The equipment may be used to: Data center transformation takes a step-by-step approach through integrated projects carried out over time. This differs from

1855-442: The huge computer rooms of the 1940s, typified by ENIAC , one of the earliest examples of a data center. 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

1908-534: The latter half of the decade. According to Gartner , worldwide data center infrastructure spending reached $ 200 billion in 2021, representing a 6% increase from 2020 despite the economic challenges posed by the COVID-19 pandemic . The latter part of the 2010s and early 2020s saw a significant shift towards AI and machine learning applications, generating a global boom for more powerful and efficient data center infrastructure. As of March 2021, global data creation

1961-460: The maximum power output it can achieve at any point in time. A power station's annual energy output, however, would be recorded using units of energy (not power), typically gigawatt hours. Major energy production or consumption is often expressed as terawatt hours for a given period; often a calendar year or financial year. One terawatt hour of energy is equal to a sustained power delivery of one terawatt for one hour, or approximately 114 megawatts for

2014-500: 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. Telcordia GR-3160, NEBS Requirements for Telecommunications Data Center Equipment and Spaces , provides guidelines for data center spaces within telecommunications networks, and environmental requirements for

2067-399: The need for direct access by personnel, except under extraordinary circumstances. Because of the lack of need for staff to enter the data center, it can be operated without lighting. All of the devices are accessed and managed by remote systems, with automation programs used to perform unattended operations. In addition to the energy savings, reduction in staffing costs and the ability to locate

2120-436: The need to control IT resources. The availability of inexpensive networking equipment, coupled with new standards for the network structured cabling , made it possible to use a hierarchical design that put the servers in a specific room inside the company. The use of the term data center , as applied to specially designed computer rooms, started to gain popular recognition about this time. A boom of data centers came during

2173-436: The need to improve data center computer cooling efficiency by preventing the recirculation of hot air exhausted from IT equipment and reducing bypass airflow. There are several methods of separating hot and cold airstreams, such as hot/cold aisle containment and in-row cooling units. Cold aisle containment is done by exposing the rear of equipment racks, while the fronts of the servers are enclosed with doors and covers. This

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2226-488: The power of their transmitters in units of watts, referring to the effective radiated power . This refers to the power that a half-wave dipole antenna would need to radiate to match the intensity of the transmitter's main lobe . The terms power and energy are closely related but distinct physical quantities. Power is the rate at which energy is generated or consumed and hence is measured in units (e.g. watts) that represent energy per unit time . For example, when

2279-615: The rest of the facility or in cold/hot aisle air circulation systems that are closed systems , such as: However, there also exist other means to put out fires, especially in Sensitive areas , usually using Gaseous fire suppression , of which Halon gas was the most popular, until the negative effects of producing and using it were discovered. [1] Physical access is usually restricted. Layered security often starts with fencing, bollards and mantraps . Video camera surveillance and permanent security guards are almost always present if

2332-430: The same appliance. Energy use is a central issue for data centers. Power draw ranges from a few kW for a rack of servers in a closet to several tens of MW for large facilities. Some facilities have power densities more than 100 times that of a typical office building. For higher power density facilities, electricity costs are a dominant operating expense and account for over 10% of the total cost of ownership (TCO) of

2385-470: The site further from population centers, implementing a lights-out data center reduces the threat of malicious attacks upon the infrastructure. Generally speaking, local authorities prefer noise levels at data centers to be "10 dB below the existing night-time background noise level at the nearest residence." OSHA regulations require monitoring of noise levels inside data centers if noise exceeds 85 decibels. The average noise level in server areas of

2438-569: The unit of power. In the electric power industry , megawatt electrical ( MWe or MW e ) refers by convention to the electric power produced by a generator, while megawatt thermal or thermal megawatt (MWt, MW t , or MWth, MW th ) refers to thermal power produced by the plant. For example, the Embalse nuclear power plant in Argentina uses a fission reactor to generate 2,109 MW t (i.e. heat), which creates steam to drive

2491-570: The unit within the existing system of practical units as "the power conveyed by a current of an Ampère through the difference of potential of a Volt". In October 1908, at the International Conference on Electric Units and Standards in London, so-called international definitions were established for practical electrical units. Siemens' definition was adopted as the international watt. (Also used: 1 A × 1 Ω.) The watt

2544-520: Was an area where Siemens also had a strong presence in, especially in Europe. The mainframe strategy of Siemens was different however as it produced its own line of mainframes that were not IBM compatible. Before the acquisition of Amdahl, Fujitsu also already had its own division that produced IBM compatible mainframes so the Amdahl acquisition was part of a market consolidation effort. The German half of

2597-420: Was defined as equal to 10 units of power in the practical system of units. The "international units" were dominant from 1909 until 1948. After the 9th General Conference on Weights and Measures in 1948, the international watt was redefined from practical units to absolute units (i.e., using only length, mass, and time). Concretely, this meant that 1 watt was defined as the quantity of energy transferred in

2650-402: Was made by IBM in 1956, and they've "been around since the 1960s", it was the 1970s that made it more common for computer centers to thereby allow cool air to circulate more efficiently. The first purpose of the raised floor was to allow access for wiring. The lights-out data center, also known as a darkened or a dark data center, is a data center that, ideally, has all but eliminated

2703-427: Was projected to grow to more than 180 zettabytes by 2025, up from 64.2 zettabytes in 2020. The United States is currently the foremost leader in data center infrastructure, hosting 5,381 data centers as of March 2024, the highest number of any country worldwide. According to global consultancy McKinsey & Co., U.S. market demand is expected to double to 35 gigawatts (GW) by 2030, up from 17 GW in 2022. As of 2023,

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2756-635: Was sold to the British International Computers Limited (ICL). Later ICL was absorbed by Fujitsu . Ironically, Fujitsu was originally the data division of Fuji Electric , whose name was derived from its founders; "Fu" from the Furukawa Electric zaibatsu, and "Ji" from jiimensu , the Japanese transliteration for Siemens. The Nokia MikroMikko line of compact desktop computers continued to be produced at

2809-802: Was the last major Japanese/European computer manufacturer. The Fujitsu takeover went ahead as planned on April 1, 2009—with the company renamed Fujitsu Technology Solutions . The FSC website was terminated. Fujitsu Siemens Computers' products included: Data center A data center is a building , a dedicated space within a building, or a group of buildings used to house computer systems and associated components, such as telecommunications and storage systems . Since IT operations are crucial for business continuity , it generally includes redundant or backup components and infrastructure for power supply , data communication connections, environmental controls (e.g., air conditioning , fire suppression), and various security devices. A large data center

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