HP Rp3440-4 - 9000 - 0 MB RAM Manual
Generic site preparation guide
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Summary of Contents for HP Rp3440-4 - 9000 - 0 MB RAM
- Page 1 Generic Site Preparation Guide HP Part Number: 5991-6018 Published: June 2009 Edition: Third Edition...
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Page 2: Revision History
Legal Notices © Copyright 2009 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. -
Page 3: Table Of Contents
Table of Contents 1 General Site Preparation Guidelines................7 Electrical Factors.............................7 Synopsis.............................7 AC Electrical Distribution System....................7 AC Power Quality Devices......................7 UPS Recommendations........................8 Power Consumption........................8 Grounding Systems........................8 Comprehensive Discussion.......................9 Computer Room Safety........................9 Fire Protection..........................9 Fire Suppression.........................10 Lighting Requirements for Equipment Servicing..............10 Cabinet Recommendations......................10 Working Space for Server Access....................10 Power Consumption........................10 Electrical Load Requirements (Circuit Breaker Sizing)..............11... - Page 4 Basic Air-Conditioning Equipment Requirements..............20 Air-Conditioning System Guidelines..................20 Air-Conditioning System Types....................20 Basic Air-Distribution Systems....................21 Air-Conditioning System Installation..................21 Air-Conditioning Ducts......................21 Humidity Level..........................22 ESD Prevention..........................22 Humidity Levels Influence the Creation of Static Charges.............22 Relative Humidity...........................22 Static Protection Measures.......................22 Acoustics............................23 Facility Characteristics..........................23 Floor Loading..........................23 Floor Loading Terms........................23 Raised Floor Loading.........................24 Average Floor Loading.......................24...
- Page 5 List of Figures Raised Floor Metal Strip Ground System..................14 C20 Male Receptacle (at Power Supply)..................27 C19 Female Plug (on One End of the Power Cord)...............27 Unterminated Plug........................27 L6-20 Plug............................27 IEC 309 Plug..........................28 CEE 7-7 Plug..........................28 L6-30 Plug............................28 NEMA 5-20P Plug (left) and receptacle (right)................28 1-10 ISI 32 Plug............................28 1-11...
- Page 6 List of Tables Maximum Contaminant Gas Levels....................19 Effect of Humidity on ESD Charge Levels..................22 Floor Loading Term Definitions....................23 Typical Raised Floor Specifications....................24 Product Technical Requirements Based on Customer Environments..........25 Customer and HP Information......................31 Site Inspection Checklist........................31 List of Tables...
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Page 7: General Site Preparation Guidelines
1 General Site Preparation Guidelines This guide contains recommendations and best practices to improve site efficiency and tolerance before installing or operating an HP high-end or mid-range server system. This general information is intended for different server models and customer sites around the world and is not a substitute for recommendations or requirements from the manufacturer of a specific product. -
Page 8: Ups Recommendations
Use uninterruptible power supplies (UPSs), backup generators, auto transfer devices, floor-mounted distribution transformers (less than 75-foot distances), and other alternatives for critical systems and applications demanding high availability. To ensure sufficient power quality, keep in mind: • The best voltage operating margin is in the middle of the distribution range. •... -
Page 9: Comprehensive Discussion
Comprehensive Discussion IMPORTANT: Electrical practices and suggestions in this guide are based on North American practices. For regions and areas outside North America, local electrical codes take precedence over North American electrical codes. For example, the recommendation that the Protective Earth (PE) conductor be green with a yellow stripe, is a European Union (EU) directive. -
Page 10: Fire Suppression
Fire Suppression Though fires in computer rooms are rare, they are a safety and business consideration. Use gaseous agents as primary fire control with water as a backup system. Gaseous agents include and Halon substitutes, like Intergen. Where fire suppression using water is dictated, use dry pipe water valving with suitably rated temperature heads. -
Page 11: Electrical Load Requirements (Circuit Breaker Sizing)
NOTE: Peripheral equipment should have dedicated breakers. Electrical Load Requirements (Circuit Breaker Sizing) IMPORTANT: Local authority has jurisdiction (LAHJ) must determine the final decision regarding adherence to country-specific electrical codes and guidelines. It is good practice to derate power distribution systems for the following reasons: •... -
Page 12: Distribution Hardware
Refer to qualified contractors or consultants for each situation. Distribution 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 conductors. Aluminum’s coefficient of expansion differs significantly from that of other metals used in power hardware. -
Page 13: Electrical Conduit Ground
Electrical Conduit Ground All electrical conduits must 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 Ground each power panel to the electrical service entrance with green (green/yellow) wire ground conductors. -
Page 14: Equipment Grounding Implementation Details
IMPORTANT: Regardless of the grounding connection method used, you must ground the raised floor as an absolute safety minimum. HP recommends the following approaches to create an effective and safe 2-foot by 2-foot signal reference grid: • Good—Use the raised floor structure as a ground grid. In this case, the floor must be designed as a ground grid with bolted down stringers and corrosion-resistant plating (to provide low resistance and attachment points for connection to service entrance ground and HP computer equipment). -
Page 15: System Installation Guidelines
Check that the braid contact on each end of the ground strap consists of a terminal and connection hardware (a 1/4-inch (6.0-mm) bolt, nuts, and washers). Attach one end of each ground strap to the applicable cabinet ground lug. Attach the other end to the nearest pedestal base (raised floor) or cable trough ground point (nonraised floor). -
Page 16: Airflow
HP temperature and humidity recommendations follow newly established industry standards in the following operating ranges: • Temperature of 20–25 °C (68–77 °F) • Humidity of 40%–55% relative humidity • Filtration at 35%–55% spot efficiency per American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) •... -
Page 17: Electrostatic Discharge (Esd): Source Of Greatest Failure Rate Without Detection
Electrostatic Discharge (ESD): Source of Greatest Failure Rate Without Detection Computer equipment is increasing in processor and memory density even as size continues to decrease. These smaller, more densely packed pieces of equipment are at greater risk to damage from electrostatic discharge. ESD created by the human body can be any voltage from zero, some voltages beginning at twenty five volts (25V). -
Page 18: Airflow
Airflow Ensure that separate hot and cold aisles are parallel to airflow patterns. • This recommendation causes cooling air to be released into cold aisles, where opposing rows have intake grills oriented. • Ensure that opposing row exhaust grills face each other, without cooling air. •... -
Page 19: Metallic Particulate Contamination
Keep the computer room clean by following these guidelines: • Establish a no-smoking policy. Particulates of cigarette smoke will not improve the operation or reliability of surrounding equipment. • Locate printers and paper products in a separate room to eliminate paper particulate problems. -
Page 20: Cooling Requirements
HP strongly recommends to test your site for metallic particulate contamination before installing electronic equipment. Cooling Requirements Air-conditioning equipment requirements and recommendations are described in the following sections. Basic Air-Conditioning Equipment Requirements The cooling capacity of the installed air-conditioning equipment for the computer room must be sufficient to offset the computer equipment dissipation loads, as well as any space envelope heat gain. -
Page 21: Basic Air-Distribution Systems
Basic Air-Distribution Systems A basic air-distribution system includes supply air and return air. See Table 1-5: “Product Technical Requirements Based on Customer Environments” (page 25) for more information. Configure the air-distribution system to deliver adequate supply air to the cooling air intake vents of the server equipment cabinets. -
Page 22: Humidity Level
Humidity Level The recommended humidity level is between 40% and 55% relative humidity (RH). High humidity causes galvanic actions to occur between some dissimilar metals. This eventually causes a high resistance between connections, leading to equipment failures. High humidity can also have an adverse affect on some magnetic tapes and paper media. -
Page 23: Acoustics
• Ensure that all equipment and flooring are properly grounded and are at the same ground potential. • Use conductive tables and chairs. • Use a grounded wrist strap (or other grounding method) when handling circuit boards. • Store spare electronic modules in antistatic containers. Acoustics Computer equipment and air-conditioning blowers cause computer rooms to be noisy. -
Page 24: Raised Floor Loading
NOTE: Have a floor system consultant for the appropriate flooring environment verify any floor system under consideration for a server installation. Raised Floor Loading Raised floor loading is a function of the manufacturer’s load specification and the positioning of the equipment relative to the raised floor grid. While HP cannot assume responsibility for determining the suitability of a particular raised floor system, it does provide the following guidelines: •... -
Page 25: Windows
Windows Do not house computers in a room with windows. Sunlight entering a computer room can cause problems. Magnetic tape storage media is damaged if exposed to direct sunlight. Also, the heat generated by sunlight places an additional load on the cooling system. Space Requirements This section contains information about space requirements for the server. -
Page 26: Floor Plan Grid
Table 1-5 Product Technical Requirements Based on Customer Environments (continued) Environment Industry Operating Environment (ambient) Equivalent: Temp ºC, dry bulb Relative Humidity %: Dew-point Rate of ASHRAE Noncondensing (max) (ºF) ºC/hr, Allowable Recommended Allowable Recommended (ºF/hr, max) Portable/Mobile 5 to 40 8 to 90 (41 to 104) Special (or Contract) -
Page 27: C20 Male Receptacle (At Power Supply)
NOTE: The following list is not meant to be all-inclusive nor is this list meant to imply every plug shown is one that is available for the server. Female End of Power Cable The female end of the HP server is a C19 plug that connects the C20 receptacle in each power supply installed in the HP server. -
Page 28: Iec 309 Plug
Figure 1-6 IEC 309 Plug Figure 1-7 CEE 7-7 Plug Figure 1-8 L6-30 Plug Figure 1-9 NEMA 5-20P Plug (left) and receptacle (right) Figure 1-10 ISI 32 Plug General Site Preparation Guidelines... -
Page 29: Conversion Factors And Formulas
Figure 1-1 1 GB 1002 Plug Power Cable The power cable length and configuration varies based on the region the server ships to. Figure 1-12 (page 29) provides an example of one power cable configuration used to supply power to the server. Figure 1-12 L6-20 Power Cable Conversion Factors and Formulas The conversion factors provided in this section are intended to ease data calculation when... -
Page 30: Example Of An Installation Schedule
— 1 ft. = 0.305 meters — 1 CFM = 1.7m /hour • kVA conversions Three phase kVA = V × A × √3 / 1000 • Single phase kVA = V × A / 1000 Formulas • kVA = voltage × current (amps) •... -
Page 31: Customer And Hp Information
Table 1-6 Customer and HP Information Customer Information Name: Phone number: Street address: City or Town: State or province: Country Zip or postal code: Primary customer contact: Phone number: Secondary customer contact: Phone number: Traffic coordinator: Phone number: HP information Sales representative Order number: Representative making survey... -
Page 32: Delivery Survey
Table 1-7 Site Inspection Checklist (continued) Check either Yes or No. If No, include comment number or date. Comment or Date 15a. Is dual source power used? If so, identify types and evaluate grounding. Does the input frequency correspond to equipment specifications? Are lightning arrestors installed inside the building? Is power conditioning equipment installed? Is a dedicated branch circuit available for equipment? -
Page 33: Delivery Survey (Part 1)
Enter any special instructions or recommendations on the special instructions or recommendations form. The following list gives examples of special instructions or issues: • Packaging restrictions at the facility, such as size and weight limitations • Special delivery procedures • Special equipment required for installation, such as tracking or hoists •... -
Page 34: Delivery Survey (Part 2)
Figure 1-14 Delivery Survey (Part 2) ELEVATOR Fill in the following information if an elevator is required to move equipment. Capacity (lb or kg) Depth Height Width Height Depth Width STAIRS Please list number of ights and stairway dimensions. Number of ights Number of ights Width Width... -
Page 35: Glossary
Glossary apparent power A value of power for AC circuits that is calculated as the product of root mean square (RMS) current times RMS voltage, without taking the power factor into account. ASHRAE Industry-standard term for air filtration efficiency set forth by the American Society of Heating, Standard 52-76 Refrigerating, and Air-Conditioning Engineers, Inc. - Page 36 maximum input The operating current of the product equal to the maximum load divided by the minimum current input voltage. NEBS Network Equipment Building Standards. A set of safety guidelines. All electronic equipment has the potential to interfere with other electronic equipment. Interference can be caused by electromagnetic radiation, the grounding system, the electrical power connection, excessive heat or blocking the natural airflow, and connecting wires or cables.
- Page 37 watt A unit of electricity consumption representing the product of amperage and voltage. When the power requirement of a product is listed in watts, you can convert to amperes (A) by dividing the wattage by the voltage. (For example, 1,200 W divided by 120 V equals 10 A.)
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Page 39: Index
Index air-distribution systems, 21 computer room considerations, 17 acoustics, 23 cooling requirements, 20 air-conditioning dust and pollution control, 18 ducts, 21 electrostatic discharge requirements, 20 prevention, 22 system recommendations, 20 humidity level, 22 air-distribution system static protection measures, 22 room space return air, 21 equipment airflow, 16 grounding, 14... - Page 40 raised floor ground system, illustrated, 14 loading, 24 specifications, 24 relative humidity, 22 row orientation, 18 site inspection checklist, 30 sources of electrical disturbances, 11 space requirements, 25 delivery space requirements, 25 system installation guidelines, 15 data communications cables, 15 wiring connections, 15 technical requirements based on customer, 25 telephone use, 17...