WO2011049033A1 - データセンターおよびそのための計算機格納用ラック - Google Patents
データセンターおよびそのための計算機格納用ラック Download PDFInfo
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- WO2011049033A1 WO2011049033A1 PCT/JP2010/068252 JP2010068252W WO2011049033A1 WO 2011049033 A1 WO2011049033 A1 WO 2011049033A1 JP 2010068252 W JP2010068252 W JP 2010068252W WO 2011049033 A1 WO2011049033 A1 WO 2011049033A1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20718—Forced ventilation of a gaseous coolant
- H05K7/20745—Forced ventilation of a gaseous coolant within rooms for removing heat from cabinets, e.g. by air conditioning device
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
- G06F1/206—Cooling means comprising thermal management
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20718—Forced ventilation of a gaseous coolant
- H05K7/20736—Forced ventilation of a gaseous coolant within cabinets for removing heat from server blades
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Definitions
- the present invention relates to a data center that is a building for installing and operating a computer, and a computer storage rack for use in the data center.
- the present invention provides a data center that can stably operate a computer such as a server and can significantly reduce energy consumption during operation, and a computer storage rack used there The task is to do.
- a building for installing and operating a computer an intake area having an intake device for taking outside air into the building, an exhaust area having an exhaust device for discharging air outside the building, an intake area, A partition that cuts off the exhaust area, a computer storage rack installed so as to pass through a part of the partition, and an air flow so that the air in the intake area flows to the exhaust area through the computer storage rack
- An airflow control means for controlling the data center.
- a suction device that takes in outside air into the building, a second intake area that is separate from the intake area, a second partition that blocks the exhaust area and the second intake area, and a second partition
- the second computer storage rack installed so as to penetrate a part thereof, and the air flow is controlled so that the air in the second intake area passes through the second computer storage rack and flows to the exhaust area.
- a temperature sensor is further provided in at least one of the intake area and the exhaust area, and (A) airflow control in the airflow control means and / or (B) the bypass path from the exhaust device according to a signal from the temperature sensor
- the data center according to any one of (1) to (4), wherein the airflow to the inhalation device is controlled via (6)
- a computer storage rack for installation in a building for installing and operating a computer the computer storage rack configured to penetrate the rack body, and in the storage area
- the outside air taken into the intake area passes through the computer storage rack and flows to the exhaust area, and at that time, the heat generated by the computer stored in the rack is taken away. Can do. Since the air warmed by the computer is exhausted to the outside, there is no or very little need to cool the air itself. Thus, since the data center can be constructed by controlling the airflow, the energy consumption in the data center is remarkably reduced, and cost reduction and environmental load reduction are greatly expected.
- the present invention does not require complex building elements such as double floors for air conditioning in conventional data centers.
- the computer storage rack according to the present invention is suitable for application to the above-described data center because air can efficiently flow into the stored computer.
- the worker can travel between the intake area and the exhaust area via the airtight chamber, so that the work efficiency in the data center is improved.
- the intake area provided in the data center can be increased, and the number of computers that can be stored and operated can be increased.
- the exhausted warm air can be taken into the inhalation area as needed. This makes it possible to suppress overcooling of the computer or warm the data center at low temperatures such as at night or in winter.
- the feedback of the signal from the temperature sensor is used to control the air flow or to incorporate a part of the warmed exhaust air into the intake area. Temperature change can be suppressed.
- 1 is a schematic plan view of a data center that is one embodiment of the present invention. It is a schematic diagram of the computer storage rack which is one aspect
- mode of this invention. 1 is a schematic plan view of a data center that is one embodiment of the present invention. 1 is a schematic plan view of a data center that is one embodiment of the present invention. It is a model front view of the 19-inch rack used in the Example of this invention.
- 1 is a data center
- 10 and 110 are intake areas
- 11 and 111 are intake openings
- 20 is an exhaust area
- 21 is an exhaust opening
- 12 and 112 are fans.
- 30 is a computer storage rack
- 31 is a top plate
- 32 is a side plate
- 33 is a closing plate
- 34 is an area not storing a server
- 35 is a server
- 36 is an air It is a blank
- 40 and 140 are partition walls
- 50 is an airtight chamber
- 13, 23, 51 and 52 are doorways.
- FIG. 1 is a schematic plan view of a data center which is one embodiment of the present invention.
- the data center 1 is divided into an intake area 10 and an exhaust area 20 by a partition wall 40.
- a computer storage rack 30 is installed in a part of the partition wall 40 so as to penetrate the partition wall 40, and the rack 30 faces both the intake area 10 and the exhaust area 20.
- outside air is taken into the intake area 10 through the intake port 11, flows through the computer storage rack 30 to the exhaust area 20, and is discharged to the outside through the exhaust port 21.
- air preferably passes through a computer (not shown) stored in the rack 30, and at that time, heat generated from the computer is taken away by the air, and the efficiency inside the computer is increased. Cooling is achieved.
- the airflow is controlled by fans 12 and 22 and the like. The operator enters and exits the intake area 10 and the exhaust area 20 through the entrances 13 and 23.
- the intake area 10 is an area partitioned within the data center 1. Outside air is taken into the intake area 10.
- a general air conditioner can be used as appropriate as an inhaler for taking in outside air.
- the suction port 11 can be appropriately provided with a filter for dust prevention.
- the floor or ceiling of the air intake area 10 preferably has no holes or the like in order to minimize the entry and exit of air. However, holes may be provided for electric wiring or the like.
- the area of the suction area 10 is not particularly limited as long as there is enough space for the operator to operate the computer in the suction area 10.
- the inlet / outlet port 13 from outside the building is provided in the suction area 10.
- the doorway 13 preferably constitutes an air lock having a plurality of doors.
- the exhaust area 20 is an area partitioned in the data center 1 separately from the intake area 10. Air is discharged from the exhaust area 20 to the outside of the data center 1.
- a general air conditioner can be used as the exhaust device as appropriate. For example, a combination of the exhaust port 21 and the fan 22 can be used.
- the floor and ceiling of the exhaust area 20 preferably have no holes in order to minimize the inflow and outflow of air. However, holes may be provided for electric wiring and the like.
- the area of the exhaust area 20 is not particularly limited as long as there is enough area for the operator to operate the computer in the exhaust area 20.
- the exhaust area 20 is provided with an entrance 23 from outside the building.
- the entrance / exit 23 preferably constitutes an air lock having a plurality of doors.
- the partition 40 blocks the intake area 10 and the exhaust area 20. If the air flow in both areas 10 and 20 can be blocked, the structure and material of the partition wall 40 are not particularly limited, and a general building board or the like can be used as appropriate. In order to ensure the interruption of the air flow between the intake area 10 and the exhaust area 20, the partition wall 40 is usually constructed from the floor to the ceiling. A computer storage rack 30 is installed in a part of the partition wall 40 so as to penetrate from the intake area 10 to the exhaust area 20. Preferably, the computer storage rack 30 constitutes the only flow path between the intake area 10 and the exhaust area 20.
- the computer storage rack 30 (hereinafter sometimes abbreviated as “rack”) is a shelf-like structure provided with an area for storing computers to be operated.
- FIG. 2 is a schematic view of a rack according to one embodiment of the present invention.
- the rack 30 has a top plate 31 and side plates 32.
- a shelf-like storage area is provided so as to penetrate the main body of the rack 30.
- a computer (not shown) is stored in this shelf-shaped storage area.
- the computer used here is preferably designed so that air flows in a uniaxial direction inside.
- a closing plate 33 that can block the airflow in the penetration direction of the area can be installed.
- the closure plate 33 is installed in the storage areas where the computers are not stored. The air can be efficiently led into the computer, and the computer can be cooled more reliably.
- a conventional computer storage rack does not have the top plate 31 and the side plate 32, and is often composed of only a frame. Even in such a rack, if it is configured so that the closing plate 33 can be installed on the extended line of the partition wall 40, or if the computer occupies as much of the rack storage area as possible, the efficiency of the computer can be improved. Cooling is possible. However, since it is easier to control the airflow when the top plate 31 and the side plate 32 are provided, the range of selection of the installation conditions and the computer to be used is widened. When the rack 30 has a gap other than the computer storage area, it is preferable to install a blocking plate in the gap so that air efficiently flows into the stored computer.
- the type of computer installed and operated in the data center 1 is not particularly limited.
- a computer configured to achieve cooling by flowing air from the front to the back of the computer is used. Even in other computers, the air in the intake area 10 flows to the exhaust area 20 through the computer, so that a predetermined cooling effect can be expected.
- the outside air introduced into the intake area 10 flows through the computer storage rack 30 to the exhaust area 20.
- Such air flow is controlled by the operation of the intake port 11, the exhaust port 21 and the fans 12 and 22 in the embodiment of FIG. 1. Therefore, in this embodiment, it can be evaluated that the intake port 11, the exhaust port 21 and the fans 12 and 22 act as airflow control means.
- the airflow control means is not limited to a fan, and an alternative means that can generate a desired airflow may be used in combination or replaced.
- the strength of the airflow can be adjusted as appropriate.
- the temperature inside the computer can be maintained at a temperature about 10 to 16 ° C. higher than the outside air temperature with a sufficient air volume. Therefore, the number of fans and the like can be adjusted as appropriate so that the air volume can be achieved in the temperature range with the computer operated.
- FIG. 3 is a schematic plan view of a data center which is one preferred embodiment of the present invention.
- an airtight chamber 50 is defined in addition to the intake area 10 and the exhaust area 20 described above.
- the airtight chamber 50 is configured so that airflow is blocked in both the intake area 10 and the exhaust area 20.
- the airtight chamber 50 is provided with an entrance 51 to the intake area 10 and an entrance 52 to the exhaust area 20.
- the operator can move between the intake area 10 and the exhaust area 20 without disturbing the airflow from the intake area 10 to the exhaust area 20 via the computer storage rack 30. Can do. As a result, it is not necessary to go out of the data center 1 through the entrances 13 and 23 during the work of the computer, so that work efficiency is increased.
- the airtight chamber 50 By providing the airtight chamber 50, there is a possibility that either one of the entrances 13 and 23 may not be installed.
- general construction techniques can be used as appropriate.
- the “airtightness” assumed in the present invention may be airtight to such an extent that the airflow passing through the computer storage rack 30 is not significantly inhibited.
- it is preferable to construct a structure of an airtight chamber by providing a plurality of doors at each entrance.
- FIG. 4 is a schematic plan view of a data center which is one preferred embodiment of the present invention.
- the data center 1 is divided into three areas.
- the first intake area 10 and the second intake area 110 exist on both sides of the exhaust area 20.
- the first intake area 10 and the exhaust area 20 are blocked from airflow by the first partition 40.
- the second intake area 110 and the exhaust area 20 are blocked from airflow by the second partition 140.
- a first computer storage rack 30 and a second computer storage rack 130 are provided so as to penetrate the first and second partition walls 40 and 140.
- the thick arrows in the drawing represent the air flow.
- the relationship between the first intake area 10 and the exhaust area 20 is the same as in the embodiment shown in FIG.
- the second intake area 110 is provided with a suction port 111 and a fan 112 so that outside air can be taken in.
- the taken outside air is controlled so as to pass through the second computer storage rack 130 and reach the exhaust area 20.
- Such control of the air flow in the second intake area 110 is performed by the intake port 111 and the fans 112 and 22, and it can be evaluated that these are the second air flow control means.
- the data center 1 can be appropriately provided with an airtight room and an entrance as described above.
- the second intake area 110 By providing the second intake area 110 in this way, the number of computers stored and operated in the data center 1 can be increased.
- a data center divided into four or more rooms can be constructed by appropriately combining the data centers in the modes of FIGS.
- the air warmed by the computer is discharged out of the data center 1 from the exhaust area 20.
- a bypass path (not shown) is provided for reincorporating the exhausted warm air into the intake area.
- computers in the data center 1 tend to be considered to be better if they are cooled.
- the amount of heat generated from a computer may not necessarily be large, and there may be an adverse effect caused by overcooling the computer.
- the outside air temperature is extremely low, such as in winter or at night, there is a concern about overcooling, or the inside of the data center 1 needs to be heated.
- bypass path is not particularly limited, and can be appropriately constructed using a duct or the like.
- a route can also be constructed.
- a temperature sensor (not shown) is installed in at least one of the intake area 10 and the exhaust area 20. More preferably, the airflow in the data center is controlled by a signal from the temperature sensor. For example, when the computer is insufficiently cooled and a signal indicating an increase in temperature is generated, the rotational output of the fans 12 and 22 is increased to increase the airflow, thereby promoting the cooling of the computer. On the contrary, when it is recognized that the cooling of the computer is sufficiently achieved by the signal from the temperature sensor, the rotational output of the fans 12 and 22 can be reduced to further reduce the energy consumption. it can.
- the mixing ratio of the warmed air and the outside air is controlled to control the inside of the data center 1. It is also possible to warm up.
- conventionally known control techniques can be used as appropriate. These inventions related to airflow control are not presented simply by cooling the inside of the data center, but are presented for the first time by presenting our new technical guidelines that the temperature change should be reduced by airflow control. It is what is done.
- the present invention it is not necessary or extremely small to cool the air itself as in a conventional data center.
- the prior art is appropriately used within a range that does not hinder the operation and effect of the present invention. can do.
- Example 1 The server was operated in the actual data center as follows. A schematic plan view of the data center is as shown in FIG. 1 referred to above. However, the intake area 10 is made wider than the exhaust area 20 in consideration of the ease of work of the server. Specifically, the intake area 10 was 4.5 m ⁇ 2.1 m wide, and the exhaust area 20 was 4.5 m ⁇ 1.0 m wide.
- the intake port 11 is provided with a hood, and three intake fans 12 are installed. The capacity of the fan 12 is as follows: pressure fan 40 cm, 1700 m 3 / h: 100 Pa, single phase 100 V, 135 W.
- a hood was also provided at the exhaust port 21 and three exhaust fans 22 were installed. The exhaust fan 22 is the same as the intake fan described above. These hoods and fans are responsible for the suction device, exhaust device, and airflow control means.
- FIG. 5 is a schematic front view of the 19-inch rack 30.
- 25 1U servers 35 were stored in the rack 30.
- a panel (not shown) was installed in this region 34 to block air flow from the front to the back of the rack.
- an air blank 36 (an area where there is no object and can be ventilated) is generated near the outer periphery.
- a panel was also fitted into the air blank 36 to block the flow of air from the front to the back of the rack.
- the temperature of the CPU and HDD of the server 35 can be monitored, and temperature sensors can be installed on the intake area side and the exhaust area side of the rack 30 to monitor the temperature.
- the fans 12 and 22 were operated in a state in which no particular load was applied to the CPU and HDD to control the airflow.
- the temperature of each part at that time was as follows. Time CPU temperature HDD temperature Rack intake side temperature Rack exhaust side temperature 12:00 43 °C 37 °C 32 °C 32 °C 14:00 43 °C 37 °C 32 °C 33.59 °C 16:00 42 °C 37 °C 32 °C 32 °C 18:00 42 °C 35 °C 31.2 °C 32 °C 20:00 41 °C 35 °C 30.56 °C 30.56 °C
- Example 2 In the same data center as in Example 1, the server was operated on another day (September 2, 2009). The outside temperature on this day was 24 ° C (maximum temperature).
- the server is operated with a load applied to the CPU and HDD.
- the sine function was executed 1 million times.
- the CPU usually reaches 50 ° C.
- the fans 12 and 22 were operated to control the airflow.
- the temperature of each part at that time was as follows.
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Abstract
Description
(1)計算機を設置および運用するための建物であって、建物内に外気を取り込む吸入装置を備えた吸気エリアと、建物外へ空気を排出する排気装置を備えた排気エリアと、吸気エリアと排気エリアとを遮断する隔壁と、隔壁の一部を貫通するように設置された計算機格納用ラックと、吸気エリア内の空気が計算機格納用ラックを通過して排気エリアへと流れるように気流を制御する気流制御手段と、を有するデータセンター。
(2)吸気エリアおよび排気エリアとは気流が遮断された気密室をさらに有し、気密室には吸気エリアへの出入口および排気エリアへの出入口が設けられている(1)のデータセンター。
(3)建物内に外気を取り込む吸入装置を備え上記吸気エリアとは別個の第2の吸気エリアと、排気エリアと第2の吸気エリアとを遮断する第2の隔壁と、第2の隔壁の一部を貫通するように設置された第2の計算機格納用ラックと、第2の吸気エリア内の空気が第2の計算機格納用ラックを通過して排気エリアへと流れるように気流を制御する第2の気流制御手段と、をさらに有する(1)または(2)のデータセンター。
(4)排気装置から吸入装置に至る空気のバイパス経路をさらに有する(1)~(3)のいずれかのデータセンター。
(5)吸気エリアおよび排気エリアの少なくとも一方に温度センサをさらに有し、温度センサからの信号によって、(A)気流制御手段における気流の制御、および/または、(B)排気装置から上記バイパス経路を介した吸入装置への気流の制御、が行われるよう構成された、(1)~(4)のいずれかのデータセンター。
(6)計算機を設置および運用するための建物内に設置するための計算機格納用ラックであって、当該ラック本体を貫通するように構成された計算機の格納領域を有し、前記格納領域内には閉鎖板を設置することができ、該格納領域に計算機を格納しない場合には閉鎖板によってラックを貫通する方向の気流が遮断されるよう構成されてなる、計算機格納用ラック。
以下のように、実際のデータセンターにおいてサーバを運用した。
データセンターの模式的な平面図は、先に参照した図1に表されるとおりである。ただし、サーバの作業のし易さを考慮して、排気エリア20よりも吸気エリア10を広くした。具体的には、吸気エリア10は、4.5m×2.1mの広さ、排気エリア20は、4.5m×1.0mの広さにした。吸気口11にはフードを設け、吸気用のファン12を3台設置した。ファン12の能力は以下の通りである:圧力扇40cm、1700m3/h:100Pa、単相100V、135W。排気口21にもフードを設け、排気用のファン22を3台設置した。排気用のファン22は、上述した吸気用のファンと同様のものを用いた。これらのフードおよびファンが吸入装置、排気装置、気流制御手段を担うこととなった。
時刻 CPU温度 HDD温度 ラック吸気側温度 ラック排気側温度
12:00 43℃ 37℃ 32℃ 32℃
14:00 43℃ 37℃ 32℃ 33.59℃
16:00 42℃ 37℃ 32℃ 32℃
18:00 42℃ 35℃ 31.2℃ 32℃
20:00 41℃ 35℃ 30.56℃ 30.56℃
実施例1と同じデータセンターで、別の日(2009年9月2日)にサーバを運用した。この日の外気温は24℃(最高気温)であった。
時刻 CPU温度 HDD温度 ラック吸気側温度 ラック排気側温度
12:00 38℃ 30℃ 23.1℃ 27.04℃
14:00 40℃ 31℃ 23.58℃ 27.68℃
16:00 40℃ 31℃ 23.58℃ 27.68℃
18:00 39℃ 30℃ 23.26℃ 27.36℃
20:00 38℃ 30℃ 22.78℃ 26.88℃
本願は日本で出願された特願2009-244340を基礎としており、その内容は参照することにより本明細書に包含される。
Claims (8)
- 計算機を設置および運用するための建物であって、
建物内に外気を取り込む吸入装置を備えた吸気エリアと、
建物外へ空気を排出する排気装置を備えた排気エリアと、
吸気エリアと排気エリアとを遮断する隔壁と、
隔壁の一部を貫通するように設置された計算機格納用ラックと、
吸気エリア内の空気が計算機格納用ラックを通過して排気エリアへと流れるように気流を制御する気流制御手段と、を有するデータセンター。 - 吸気エリアおよび排気エリアとは気流が遮断された気密室をさらに有し、気密室には吸気エリアへの出入口および排気エリアへの出入口が設けられている、請求項1記載のデータセンター。
- 建物内に外気を取り込む吸入装置を備え上記吸気エリアとは別個の第2の吸気エリアと、
排気エリアと第2の吸気エリアとを遮断する第2の隔壁と、
第2の隔壁の一部を貫通するように設置された第2の計算機格納用ラックと、
第2の吸気エリア内の空気が第2の計算機格納用ラックを通過して排気エリアへと流れるように気流を制御する第2の気流制御手段と、をさらに有する請求項1記載のデータセンター。 - 排気装置から吸入装置に至る空気のバイパス経路をさらに有する請求項1記載のデータセンター。
- 排気装置から吸入装置に至る空気のバイパス経路をさらに有する請求項2記載のデータセンター。
- 排気装置から吸入装置に至る空気のバイパス経路をさらに有する請求項3記載のデータセンター。
- 吸気エリアおよび排気エリアの少なくとも一方に温度センサをさらに有し、
温度センサからの信号によって、(A)気流制御手段における気流の制御、および/または、(B)排気装置から上記バイパス経路を介した吸入装置への気流の制御、が行われるよう構成された、請求項1~6のいずれかに記載のデータセンター。 - 計算機を設置および運用するための建物内に設置するための計算機格納用ラックであって、当該ラック本体を貫通するように構成された計算機の格納領域を有し、前記格納領域内には閉鎖板を設置することができ、該格納領域に計算機を格納しない場合には閉鎖板によってラックを貫通する方向の気流が遮断されるよう構成されてなる、計算機格納用ラック。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/263,143 US20120034860A1 (en) | 2009-10-23 | 2010-10-18 | Data center and computer storing rack therefor |
JP2011537233A JP5089810B2 (ja) | 2009-10-23 | 2010-10-18 | データセンターおよびそのための計算機格納用ラック |
CN2010800254309A CN102834787A (zh) | 2009-10-23 | 2010-10-18 | 数据中心及用于数据中心的计算机容纳机柜 |
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PCT/JP2010/068252 WO2011049033A1 (ja) | 2009-10-23 | 2010-10-18 | データセンターおよびそのための計算機格納用ラック |
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US (1) | US20120034860A1 (ja) |
JP (2) | JP5089810B2 (ja) |
KR (1) | KR20120098658A (ja) |
CN (1) | CN102834787A (ja) |
TW (1) | TW201114991A (ja) |
WO (1) | WO2011049033A1 (ja) |
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FR2953880B1 (fr) * | 2009-12-11 | 2012-01-13 | Enia Architectes | Batiment a salles informatiques superposees et procede de climatisation de ce batiment |
TW201243560A (en) * | 2011-04-29 | 2012-11-01 | Pegatron Corp | Power management device, high performance server and power management method |
US9458854B2 (en) | 2014-11-21 | 2016-10-04 | Arista Networks, Inc. | Electrical connection mechanism for reversible fan module |
US9433124B2 (en) * | 2014-11-21 | 2016-08-30 | Arista Networks, Inc. | Reversible fan module |
JP6660727B2 (ja) * | 2015-12-16 | 2020-03-11 | ダイダン株式会社 | 外気利用型冷却システム |
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Also Published As
Publication number | Publication date |
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JP5089810B2 (ja) | 2012-12-05 |
JP2013069276A (ja) | 2013-04-18 |
TW201114991A (en) | 2011-05-01 |
CN102834787A (zh) | 2012-12-19 |
US20120034860A1 (en) | 2012-02-09 |
JPWO2011049033A1 (ja) | 2013-03-14 |
KR20120098658A (ko) | 2012-09-05 |
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