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1、,High Density Cooling Solutions,A“blade”is a“server on a card”;containing processors,memory,hard drives,integrated Ethernet NICs,optional Fibre Channel HBAs,hardware management operation and other I/O technologies.The first commercial blade servers were launched in 2001 by RLX Technologies(bought by
2、 HP in 2005),What is a“Blade Server”?,The blade servers are plugged in to a chassis which provides shared infrastructures such as power,cooling,server management,KVM switches,etc.They are“hot-pluggable”.Each chassis normally occupies“7U”of a“standard”42U rack.Therefore 1 rack can house up to 6 chass
3、is.,The“Blade Chassis”,Modular scalabilitysimply slide new blade into vacant slot,no cablingVersatilityblades with different types and speeds of processor can be mounted in the same chassisPerformancemany more servers can be packed into the same spaceAvailability and“hot swap”serviceabilityManagemen
4、t and integrated systems managementdeploymentprocessors,minimal cabling,Blade Server benefits,Manufacturers,Market Trend,IBMEach BladeCenter chassis occupies“7U”Max 6 BladeCenters in standard“42U”rackMax heat output per BladeCenter:4kWMax heat output per rack:24kWNominal cooling airflow:6 x 850=5100
5、 m3/hAirflow front to back,Dell10 PowerEdge 1855 Blades occupy“7U”Max 60 PowerEdge 1855 Blades in standard“42U”rackMax heat output per 10 Blades:4.17kWMax heat output per rack:25kWNominal cooling airflow:6 x 680=4080 m3/hAirflow front to back,Cooling Needs,Blade servers currently deployed are normal
6、ly spread around a number of racks in the data centreWeight is also an issue fully loaded rack is up to 900kgActual heat loads are less than those predicted because all the servers in a rack are never fully loaded at the same time(perhaps why IBM and Siemens only offer max 15kW cooling solutions of
7、their own)Cost of space is not the main driver for blade server deploymentManufacturers recognise that getting sufficient power and cooling to the servers is a constraint on the growth in deployment and are working on solutions,Actual and Future Needs,Cooling airflow of 4000 to 5000m3/h at 18-22CTop
8、 level is criticalFlexibility in the cooling demand,Cooling Needs,New technology and equipment New security and efficiency standards Existing installations and upgrades New sites,Cooling the Present and the Future,?,New technology and equipment New security and efficiency standards Existing installa
9、tions and upgrades New sites,Cooling the Present and the Future,Operational control of the equipment in all conditions Need to adapt the infrastructure to the evolution of data centers rapidly,economically and efficiently.New design approach,Stable temperatures for up-grades,Different solutions allo
10、w adaption to the specific requirements Development of the“philosophy”of the perimeter units:Efficiency,Modularity,Flexibility Evolved system of chilled air distribution(concentration and creation of optimum operating conditions),Flexibility is in the Air,It is flexible and modular,the room can be g
11、radually configured.Maximising efficiency:the cold air is directed exactly where it is needed Maximising efficiency:Energy saving solutions of the perimeter units.Minimised risk for the electronic apparatus:no water in the IT room;Intrinsically safe,Flexibility is in the Air-Advantages,Hot cold corr
12、idors,Up to 5 kW/Rack,Automatic Air flow modulation according the real load of the server.High Efficient fan(E.C.)Local Microprocessor with server temperatures control(suction or discharge)Adjustable fins for air flow optimisation(2 sections)Grill which can support pedestrian weight Modular size(600
13、 x600)Compatibility with an access raised floor,Solutions-Active Floor,Up to 15 kW/Rack,Solutions-Active Floor,The compartmentalization of the cold aisle enables:the distribution of the air on the suction side of the blade servers to be optimized air by-passes and mixing with air at higher temperatu
14、res to be avoidedAn air flow must be maintained within the cool pool which is at least equal to the total air flow released by the blade-servers,Solutions-Cool Pool,Up to 15 kW/Rack,Hot aisle,Hot aisle,Cold Air,Blade ServerRack,Blade ServerRack,Ceiling/duct,Suctionplenum,The pressurization of the fl
15、oor space is the key factor for Data Centre cooling.It is fundamental guarantee the design conditions during the entire lifetime of the server.,On the wings of innovation,On the wings of innovation,The secrets to good floor pressurisation are:A sufficiently deep floor void A well-sealed floor AC uni
16、ts capable of producing sufficient pressurisation AC units capable of producing pressurisation throughout the space particularly in the“Near Zone”adjacent to the AC units.Correctly selected floor grilles Floor grilles with volume adjustment The correct number of grilles to match the load,AFPS System
17、,The AFPS system(Automatic Floor Pressurization System)allows the pressure underneath the floor to be maintained at a constant pressure in all operating conditions:Standard and extra maintenance Increase in equipmentReduction in fan consumption.,Perimeter Units,Optimal characteristics:Discharge temp
18、erature Control Modulation of air flow and minimum power consumption(E.C.fans)AFPS,Automatic Floor Pressurization System Integrated regulation system which maximises high density applications Energy Saving version(DX Chiller),Active Floor System,Active Floor System,The combined use of the COOL POOL
19、and the ACTIVE FLOORoptimises the advantages of both solutions,maximising the increased air flow generated by the ACTIVE FLOOR in order to effectively cool rackswith15 kW up to 40 kW per cabinet.This solution is modular and can be altered over time,adapting to the expansion and development of the eq
20、uipment installed.,Over 15 kW/Rack,Uniflair High Density Cooling Solutions,Aims of the system,Entire cooling system management Operation optimization for all of the components Reduction in energy consumption without creating hot-spots Monitoring of the room,the cabinets and all of the main component
21、s Communication with all of the main BMS Unique position in the market Monitoring of the servers(working temperatures),System Structure,Master Control,Active Floor System:Main Features,Depending on the number of servers installed and the active heat load:,Increase in the discharge temperature of the
22、 close control units,Increase in the chilled water set point(CW)of the external chillers,Reduction in the air flow of the close control units(without hot-spots-AFPS),Capacity partialization(valve CW/compressors DX),Maximum Efficiency,Controland Safety,Optimised management of the whole cooling system
23、 Reduction in energy consumption and running costs Maintaining optimum conditions during all operating phases Monitoring the room,the servers and all of the main system components with the possibility of remote assistance.Interface with main BMS systemsMonitoring of Server working conditions(co location).,Advantages,High Density Cooling Solutions,High Density Cooling Solutions,
