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Chapter 1

HP Carrier Grade Blade Server bh3710 Overview

Air Flow

11

Power Supply

Each power supply contains cooling fans. Cool air flows through each power supply from front to back.
Because they are separated by the solid bottom of the card cage, power supply air and blade server air do not
mix.

Figure 1-4

Power Supply Cooling Fan Location

Power Supply Cooling Fans

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Содержание BH BH3710

Страница 1: ...hp Carrier Grade Blade Server bh3710 Site Preparation Guide Edition 2 0 Manufacturing Part Number bh3710_SitePrep July 2002 U S A Copyright 2002 2004 Hewlett Packard Development Company L P ...

Страница 2: ...ompany ATI is a registered trademark of ATI Technologies Incorporated Intel and Pentium are registered trademarks of Intel Corporation Microsoft Windows NT Windows 95 Windows 2000 and Microsoft Internet Explorer are registered trademarks of Microsoft in the U S and other countries Netscape Navigator is a registered trademark of Netscape Communications Corporation in the U S and other countries Sym...

Страница 3: ...ctors 23 Electrical Load Requirements Circuit Breaker Sizing 24 Power Quality 24 Sources of Voltage Fluctuations 24 Power System Protection 24 Distribution Hardware 25 Wire Selection 25 Raceway Systems Electrical Conduits 25 Building Distribution 25 Grounding Systems 26 Power Distribution Safety Grounding 26 Main Building Electrical Ground 26 Electrical Conduit Ground 26 Power Panel Ground 26 Comp...

Страница 4: ...lution Control 35 Metallic Particulate Contamination 35 Electrostatic Discharge ESD Prevention 36 Acoustics 36 A System Specifications and Requirements B Power Plug Configuration C Conversion Factors and Formulas Conversion Factors 41 Formulas 42 Glossary 43 Index 45 ...

Страница 5: ... view 14 Figure 1 8 HP Blade Server DC Power Supply front view 15 Figure 1 9 Server Identification Legend Marking 16 Figure 1 10 Management Identification Legend Marking 16 Figure 1 11 FC and LAN RTM Blade Identification Legend Marking 16 Figure 1 12 FC Disk Carrier Legend Marking 17 Figure 1 13 Cooling Air Flow 18 Figure 1 14 Server Blade Fan Tray 19 Figure 1 15 Power Supply Fans 20 Figure 1 16 S...

Страница 6: ...Figures 6 ...

Страница 7: ...ts Before preparing your site for an HP Carrier Grade Blade Server bh3710 familiarize yourself with the components that comprise the bh3710 Use the following reference to determine where you would like to start Chapter 1 provides an overview of the bh3710 components Chapter 2 provides specific information for ensuring that the site is ready when the bh3710 Blade Server arrives Appendix A provides ...

Страница 8: ...nents available at the front of this 6 EIA unit high 6U server are Ten individual Compact PCI slots supporting defined configurations for 1 slot and 2 slot PCAs Vertical cooling fan tray with slot status LEDs on the bulkhead Two hot swap n 1 power supplies Figure 1 1 Blade Server Front View ...

Страница 9: ... Overview Rear View 9 Rear View The components available at the rear of this 6 EIA unit high 6U server are Two hot swap N 1 inlet modules 10 individual Compact PCI slots supporting defined configurations for blades Figure 1 2 Blade Server Rear View ...

Страница 10: ...d on a vertical tray cool the system Refer to Appendix A for System Specifications Air enters the vent along the right front and side surface of the chassis and passes through the front and rear card cage then travels out through the left rear and side surface Figure 1 3 Blade Server Cooling Airflow Front View Cooling Fan Airflow in Cooling Fan Airflow out PS Airflow out PS Airflow in ...

Страница 11: ...Each power supply contains cooling fans Cool air flows through each power supply from front to back Because they are separated by the solid bottom of the card cage power supply air and blade server air do not mix Figure 1 4 Power Supply Cooling Fan Location Power Supply Cooling Fans ...

Страница 12: ...e Server Backplane rear view Figure 1 6 Blade Server Backplane front view DC Power Supplies Two power supplies and two power cords ship with each system If dual power supplies will be fed with dual power sources grounding potentials between the power sources should be measured and verified to be at or near zero volts potential See Grounding Systems for more details Each power supply comes in two p...

Страница 13: ...in the lower bay of the chassis They are accessed from both the front and rear of the chassis as illustrated in Figure 1 7 and Figure 1 8 Each power supply has two visible LEDs that display operating conditions A green LED illuminates whenever DC power is present and within operating specifications ...

Страница 14: ...ter 1 HP Carrier Grade Blade Server bh3710 Overview DC Power Supplies 14 A yellow LED illuminates whenever the power supply is in a fault condition Figure 1 7 HP Blade Server DC Power Inlet Module rear view ...

Страница 15: ...Chapter 1 HP Carrier Grade Blade Server bh3710 Overview DC Power Supplies 15 Figure 1 8 HP Blade Server DC Power Supply front view ...

Страница 16: ... the Blade Server system and to communicate with an external console The Management Blade must reside in Front slot 10 F10 Both the Powerbar chassis and the blade are identified with a label containing a square logo as shown below Figure 1 10 Management Identification Legend Marking Fibre Channel FC and LAN Rear Transition Module RTM Blade The FC and LAN RTM blade provides communication expansion ...

Страница 17: ... can be added using the FC disk carrier with one or two additional drives installed The carrier and drives utilize two slots and can be installed in slots 3 4 5 6 and 7 8 Slots accommodating FC disk carriers are identified by the symbol below Figure 1 12 FC Disk Carrier Legend Marking Fan Assemblies There are two separate cooling systems for the Blade Server The Server Blade Fan Tray The Power Sup...

Страница 18: ...10 Overview Fan Assemblies 18 The two systems are separate and do not provide cooling for each other See figure below for airflow information Figure 1 13 Cooling Air Flow Cooling Fan Airflow out PS Airflow out PS Airflow in Cooling Fan Airflow in ...

Страница 19: ...Tray The Server Blade Fan Tray is a single unit located in a vertical housing on the right side of the Blade Server front The Tray must be removed and replaced within 20 seconds to keep the system from shutting down Fans in the Tray are not individually replaceable Figure 1 14 Server Blade Fan Tray ...

Страница 20: ...e power supply and can only be changed by removing and replacing the power supply Figure 1 15 Power Supply Fans Slot Blockers Any slot that is not occupied by a blade must contain a slot blocker to channel cool air in the proper direction and to maintain the cooling system pressure Figure 1 16 Slot Blocker Power Supply Cooling Fans ...

Страница 21: ...on 21 Blade Server Racking Information The racking kit enables the installation of the bh3710 chassis into a rack Rack kit installation documentation is shipped with each server inside the rack kit box Racking information may also be found at the Web site at http www hp com racksolutions ...

Страница 22: ...Chapter 1 HP Carrier Grade Blade Server bh3710 Overview Blade Server Racking Information 22 ...

Страница 23: ...e the final decision regarding adherence to country specific electrical codes and guidelines Throughout this chapter the symbol will be used to indicate Local Authority Has Jurisdiction Electrical Factors Proper design and installation of a power distribution system for an HP Blade Server requires specialized skills Those responsible for this task must have a thorough knowledge and understanding o...

Страница 24: ...al disturbances can exceed the design specifications of the equipment Sources of Voltage Fluctuations Voltage fluctuations sometimes called glitches affect the quality of electrical power Common sources of these fluctuations are Fluctuations occurring within the facility s distribution system Utility service low voltage conditions such as sags or brownouts Wide and rapid variations in input power ...

Страница 25: ...tribution Hardware This section describes wire selection and the types of raceways electrical conduits used in the distribution system Wire Selection Use copper conductors instead of aluminum as aluminum s coefficient of expansion differs significantly from that of other metals used in power hardware Because of this difference aluminum conductors can cause connector hardware to work loose overheat...

Страница 26: ...e pipe provide an earth ground Electrical Conduit Ground All electrical conduits should be made of rigid metallic conduit that is securely connected together or bonded to panels and electrical boxes so as to provide a continuous grounding system Power Panel Ground Each power panel should be grounded to the electrical service entrance with green green yellow wire ground conductors The green green y...

Страница 27: ...ions Raised Floor High Frequency Noise Grounding If a raised floor system is used install a complete signal grounding grid for maintaining equal potential over a broad band of frequencies The grounding grid should be connected to the equipment cabinet and electrical service entrance ground at multiple connection points using a minimum 6 AWG 16mm2 wire ground conductor Figure 2 1 illustrates a meta...

Страница 28: ... ground point Figure 2 1 Raised Floor Metal Strip Ground System Equipment Grounding Implementation Details Connect all Hewlett Packard equipment cabinets to the site ground grid as follows 1 Attach one end of each ground strap to the applicable cabinet ground lug 2 Attach the other end to the nearest pedestal base raised floor or cable trough ground point nonraised floor 3 Check that the braid con...

Страница 29: ...f high frequency noise CAUTION Connections that are too loose or too tight can have a high impedance that cause serious problems such as erratic equipment operation A high impedance connection overheats and sometimes causes fire or high temperatures that can destroy hard to replace components such as distribution panels or system bus bars Wiring connections must be properly torqued Many equipment ...

Страница 30: ...e a vapor barrier installed around the entire computer room envelope to restrain moisture migration Caulk and vapor seal all pipes and cables that penetrate the envelope Use at least a 12 inch raised floor for minimum favorable room air distribution system underfloor distribution Ensure a minimum clearance of 12 inches between the top of the server cabinet and the ceiling to allow for return airfl...

Страница 31: ...ing air intakes of the computer system cabinets larger space requirements are needed to keep ambient air intake to the computer system cabinets within the specified temperature and humidity ranges Space planning should also include the possible addition of equipment or other changes in space requirements Equipment layout plans should also include provisions for the following Channels or fixtures u...

Страница 32: ...ystem until you have carefully examined it to verify that it is adequate to support the appropriate installation Floor Loading Terms The table below defines floor loading terms Cooling Requirements Air conditioning equipment requirements and recommendations are described in the following sections Appendix A System Specifications and Requirements summarizes air conditioning requirements for this HP...

Страница 33: ...ng an air conditioning system and selecting the necessary equipment The air conditioning system that serves the computer room should be capable of operating 24 hours a day 365 days a year It should also be independent of other systems in the building Consider the long term value of computer system availability redundant air conditioning equipment or capacity The system should be capable of handlin...

Страница 34: ...emitted downward from the perforated ceiling panels is then available near the cooling air intake vents of the computer system cabinets Return air should be ducted back to the air conditioning equipment through the return air duct above the ceiling Above ceiling ducted air distribution system Supply air is ducted into a ceiling diffuser system from upflow air conditioning equipment located in the ...

Страница 35: ...prevented from entering the computer room by maintaining the air conditioning system at a high static air pressure level Other sources of dust metallic conductive abrasive and or microscopic particles can be present Some sources of these particulates are Subfloor shedding Raised floor shedding Ceiling tile shedding These particulates are not always visible to the naked eye A good check to determin...

Страница 36: ... contamination before installation of electronic equipment Electrostatic Discharge ESD Prevention Static charges voltage levels occur when objects are separated or rubbed together The voltage level of a static charge is determined by the following factors Types of materials Relative humidity Rate of change or separation Follow these static protection measures to minimize possible ESD induced failu...

Страница 37: ...e 2C 1000m above sea level Recommended 20 to 25C Non Operational 40 to 70C Humidity Operational 15 to 80 RH non condensing 35C Recommended 40 to 60 RH non condensing Maximum Altitude Operational 3000 meters above sea level Non Operational 4500 meters above sea level Acoustics Sound Power 54 0 dBA Bels LwA not to exceed 7 5 Bels Table A 2 Power Consumption Maximum Power Required VAa Chassis 0 0 Wat...

Страница 38: ... Chassis 1 0 0 Watts 0 HP Server bp2200 1 89 0 Watts 89 0 Watts 304 Btu FC Storage Blade 1 to 2 35 1 Watts 70 2 Watts 240 Btu Management Blade 1 18 6 Watts 18 6 Watts 64 Btu Management LAN Blade 2 7 0 Watts 14 0 Watts 48 Btu Power Supply 2a 84 0 Watts 287 Btu Total 276 Watts 943 Btu a Maximum power dissipated with 1 or 2 power supplies is 84 Watts Table A 4 System Power Consumption Power Consumpti...

Страница 39: ...ndix B 39 B Power Plug Configuration The power cable designed for the DC Blade Server is shown below Figure B 1 bh3710 DC Power Plug The end of the power cable where the male plug goes will be unterminated ...

Страница 40: ...Appendix B Power Plug Configuration 40 ...

Страница 41: ... document and additional conversion factors that may be helpful in determining factors required for site preparation are provided Conversion Factors Refrigeration 1 watt 86 kcal h 1 watt 3 412 Btu h 1 watt 2 843 4 tons 1 ton 200 Btu min 1 ton 12 000 Btu h 1 ton 3 517 2 W Metric Equivalents 1 centimeter 0 3937 in 1 meter 3 28 ft 1 meter 1 09 yds 1 in 2 54 cm 1 ft 0 305 m 1 CFM 1 7m3 h KVA Conversio...

Страница 42: ...Appendix C Conversion Factors and Formulas Formulas 42 Formulas KVA Voltage x Current amps Watts VA x PF BTU Watts x 3 41 ...

Страница 43: ...turned on they present high initial currents as a result of filter capacitor impedance These large filter capacitors act like a short circuit producing an immediate inrush surge current with a fast rise time The peak inrush current can be several orders of magnitude greater than the supply s typical current KVA Abbreviation for kilovolt amperes 1000 x volt amperes Latent cooling capacity An air co...

Страница 44: ... cooling capacity of a system One ton of heat represents the amount of heat needed to melt one ton 2000 lbs of ice in one hour 12 000 Btu hr equals one ton of heat True power In an AC circuit true power is the actual power consumed It is distinguished from apparent power by eliminating the reactive power component that may be present Typical input current The operating current of the product measu...

Страница 45: ...ents 24 electrical metallic tubing EMT 25 electrical service main building 26 electromagnetic interference EMI 29 43 electrostatic discharge ESD 29 36 43 environmental factors 30 F fan assemblies 17 fibre channel and LAN rear transition module blade 16 fibre channel disk carrier 17 floor floor loading term definitions 32 floor plan grid 31 loading 31 raised floor systems 27 G glitches 24 glossary ...

Страница 46: ...rigeration conversion factors 41 rigid conduit 25 root mean square rms 44 S safety computer equipment ground 26 power distribution safety grounding 26 raised floor 27 server blade fan tray 19 slot blocker 20 space requirements 30 system air conditioning cooling 33 backplane 12 cabinet 27 power consumption 38 power outage protection 24 raceway 25 raised floor metal strip ground 28 specifications 37...

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