The information in this document is subject to change without notice. Hewlett-Packard makes no warranty of any kind with regard to this manual, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard shall not be held liable for errors contained herein or direct, indirect, special, incidental or consequential damages in connection with the furnishing, performance, or use of this material.
System Specifications Dimensions and Weights Dimensions and Weights This section provides dimensions and weights of the server and server components. Table 1-1 HP Integrity rx8620 Server Dimensions and Weights Stand-alone Packaged Height - Inches (centimeters) 29.55 (75.00) 86.50 (219.70) Width - Inches (centimeters) 17.50 (44.50)
The HP Integrity rx8620 Server contains four C20 power receptacles located at the bottom rear bulkhead. A minimum of two power cords must be used to maintain normal operation of the HP Integrity rx8620 Server. A second set of two cords can be added to improve system availability by protecting, for example, against power source failures or accidentally tripped circuit breakers.
Electrical Specifications System Power Specifications Table 1-4 and Table 1-5 list the AC power requirements for the HP Integrity rx8620 Server. These tables provide information to help determine the amount of AC power needed for your computer room. Table 1-4...
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System Specifications Electrical Specifications 3. “Typical maximum power” is the input power measured at the ac input expressed in Watts and Volt-Amps, and the measured maximum worst case power consumption. This number represents the largest power consumption for the server under laboratory conditions, using aggressive software applications designed specifically to work the system at maximum loads and power consumption.
Environmental Specifications Environmental Specifications This section provides the environmental, power dissipation, noise emission, and air flow specifications for the HP Integrity rx8620 Server. Temperature and Humidity The cabinet is actively cooled using forced convection in a Class C1-modified environment. The recommended humidity level for Class C1 is 40 to 55% relative humidity (RH).
The fans within the power supply will operate at full speed during standby. Typical Power Dissipation and Cooling Table 1-6 provides calculations for configurations as described in the table. Table 1-6 Typical HP Integrity rx8620 Server Configurations Memory PCI Cards Hard...
The server may ship with a power distribution unit (PDU). There are two 60A PDUs available for the HP Integrity rx8620 Server. Each PDU is mounted horizontally between the rear columns of the server cabinet. The 60A PDUs are delivered with an IEC-309 60A plug.
System Specifications Weight Weight To determine overall weight, follow the example in Table 1-7, then complete the entries in Table 1-8. Table 1-7 Example Weight Summary Component Quantity Multiply By Weight (kg) Cell Board 27.8 lb. 107.20 lb. (12.16) (48.64) PCI Card (varies - 0.34 lb.
General Site Preparation Guidelines The following information provides general principles and practices to consider before the installation or operation of the system. Chapter 2...
General Site Preparation Guidelines Electrical Factors Electrical Factors NOTE Electrical practices and suggestions in this guide are based on North American practices. For regions and areas outside North America, local electrical codes will take precedence over North American electrical codes. An example would be the recommendation that the protective earthing (PE) conductor be green with yellow stripes.
General Site Preparation Guidelines Electrical Factors • Circuit breakers • An emergency power cutoff switch • Devices specific to the geographic location (such as earthquake protection) Lighting Requirements for Equipment Servicing Adequate lighting and utility outlets in a computer room reduce the possibility of accidents during equipment servicing.
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General Site Preparation Guidelines Electrical Factors Sources of Voltage Fluctuations Voltage fluctuations, sometimes called glitches, affect the quality of electrical power. Common sources of these disturbances are: • Fluctuations occurring within the facility’s distribution system • Utility service low-voltage conditions (such as sags or brownouts) •...
General Site Preparation Guidelines Electrical Factors Power System Protection The server can be protected from the sources of many of these electrical disturbances by using: • A dedicated power distribution system • Power conditioning equipment • Over- and under-voltage detection and protection circuits •...
General Site Preparation Guidelines Electrical Factors Grounding Systems IT Power System This product has not been evaluated for connection to an IT power system (an AC distribution system having no direct connection to earth according to IEC 60950). A server requires two methods of grounding: •...
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General Site Preparation Guidelines Electrical Factors Cabinet Performance Grounding (High-Frequency Ground) Signal interconnects between system cabinets require high-frequency ground return paths. Connect all cabinets to site ground. NOTE In some cases, power distribution system green (green/yellow) wire ground conductors are too long and inductive to provide adequate high frequency ground return paths.
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General Site Preparation Guidelines Electrical Factors Raised Floor “High-Frequency Noise” Grounding If a raised floor system is used, install a complete signal reference grid (SRG) for maintaining equal potential over a broad band of frequencies. The grid should be connected to the equipment cabinet and electrical service entrance ground at multiple connection points using a minimum #6 AWG (16 mm) wire ground conductor.
General Site Preparation Guidelines Electrical Factors Figure 2-1 Raised Floor Metal Strip Ground System Floor panel Ground wire to power panel Hex bolt Grounding grid element Grounding clamp Band and pedestal Grounding braid to computer equipment 60SP010A 11/30/99 Chapter 2...
General Site Preparation Guidelines Electrical Factors Equipment Grounding Implementation Details Connect all HP equipment cabinets to the site ground grid as follows: Step 1. Attach one end of each ground strap to the applicable cabinet ground lug. Step 2. Attach the other end to the nearest pedestal base (raised floor) or cable trough ground point (nonraised floor).
General Site Preparation Guidelines Environmental Elements Environmental Elements The following environmental elements can affect a server installation: • Computer room preparation • Cooling requirements • Humidity level • Air-conditioning ducts • Dust and pollution control • ESD prevention • Acoustics (noise reduction) Computer Room Preparation The following guidelines are recommended when preparing a computer room for a server: •...
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General Site Preparation Guidelines Environmental Elements • Air distribution • System controls adequate to maintain the computer room within specified operating ranges. Lighting and personnel must also be included. For example, a person dissipates about 450 BTUs per hour while performing a typical computer room task. At altitudes above 10,000 feet (3048 m), the lower air density reduces the cooling capability of air-conditioning systems.
General Site Preparation Guidelines Environmental Elements Return air from an under floor air-distribution system can be ducted return air (DRA) above the ceiling. Perforated floor panels (available from the raised floor manufacturer) should be located around the front of the system cabinets. Supply air emitted though the perforated floor panels is then available near the cooling air intake vents of the server cabinets.
General Site Preparation Guidelines Environmental Elements Specifically, disk drives, tape drives, and some other mechanical devices can have bearing failures resulting from airborne abrasive particles. Dust might also blanket electronic components like printed circuit boards, causing premature failure due to excess heat or humidity buildup on the boards. Other failures to power supplies and other electronic components can be caused by metallically-conductive particles, including zinc whiskers.
General Site Preparation Guidelines Environmental Elements 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 •...
General Site Preparation Guidelines Environmental Elements Acoustics Computer equipment and air-conditioning blowers cause computer rooms to be noisy. Ambient noise level in a computer room can be reduced as follows: • Dropped ceiling—Cover with a commercial grade of fire-resistant, acoustic-rated, fiberglass ceiling tile. •...
General Site Preparation Guidelines Facility Characteristics Facility Characteristics This section contains information about facility characteristics that must be considered for the installation or operation of the server. Facility characteristics are: • Floor loading • Windows • Altitude effects Floor Loading The computer room floor must be able to support the total weight of the installed server as well as the weight of the individual cabinets as they are moved into position.
General Site Preparation Guidelines Facility Characteristics Table 2-2 Floor Loading Term Definitions (Continued) Term Definition Concentrated load The load that a floor panel can support on a 1-in2 (6.45-cm2) area at the panels weakest point (typically the center of the panel), without the surface of the panel deflecting more than a predetermined amount.
General Site Preparation Guidelines Facility Characteristics Table 2-3 Typical Raised Floor Specifications (Continued) Rating Item Ultimate load 4000 lb (1814 kg) per panel Rolling load 400 lb (181 kg) Average floor load 500 lb (227 kg) a. From Table 2-2 on page 29 b.
General Site Preparation Guidelines Space Requirements Space Requirements This section contains information about space requirements for the server. This data should be used as the basic guideline for space plan developments. Other factors such as airflow, lighting, and equipment space requirements must also be considered.
General Site Preparation Guidelines Space Requirements • Access to air-conditioning ducts, filters, lighting, and electrical power hardware • Power conditioning equipment • Cabinets for cleaning materials • Maintenance area and spare parts Floor Plan Grid A floor plan grid is used to plan the location of equipment in the computer room. In addition to its use for planning, the floor plan grid should also be used when planning the locations of the following items: •...
General Site Preparation Guidelines Power Plug Configuration Power Plug Configuration Several different power cables are designed for use with HP servers. The region the server ships to will determine which power cable ships with the server. The following information provides the site preparation specialist with the knowledge of what to expect to receive based on the regional shipping destination.
General Site Preparation Guidelines Power Plug Configuration Several examples follow, though this list is not meant to be all-inclusive nor is this list meant NOTE to imply every plug shown is one that is available for the server. Figure 2-4 Unterminated Plug Figure 2-5 L6-20 Plug...
General Site Preparation Guidelines Power Plug Configuration Power Cable The power cable length and configuration varies based on the region to where the server ships. This is an example of one power cable configuration used to supply power to the server. Figure 2-12 L6-20 Power Cable Chapter 2...
General Site Preparation Guidelines Conversion Factors and Formulas Conversion Factors and Formulas The conversion factors provided in this appendix are intended to ease data calculation for systems that do not conform specifically to the configurations listed in this Site Preparation Guide. The following list includes the conversion factors used in this document, as well as additional conversion factors that might be helpful in determining those factors required for site planning.
General Site Preparation Guidelines Example of an Installation Schedule Example of an Installation Schedule The following schedule lists the sequence of events for a typical system installation: • 60 days before installation — Floor plan design completed and mailed to HP (if required to be an HP task) •...
General Site Preparation Guidelines Sample Site Inspection Checklist Sample Site Inspection Checklist Table 2-5 Customer and HP Information Customer Information Name: Phone Number: Street Address: City Town: State or Province: Country Zip or postal code: Primary customer contact: Phone Number: Secondary customer contact: Phone Number: Traffic coordinator:...
General Site Preparation Guidelines Sample Site Inspection Checklist Table 2-6 Site Inspection Checklist (Continued) Comment Please check either Yes or No. If No, include comment number or date or Date Are there channels or cutouts for cable routing? Is there a network line available? Is a telephone line available? Are customer supplied peripheral cables and LAN cables available and of the proper type?
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General Site Preparation Guidelines Sample Site Inspection Checklist Table 2-6 Site Inspection Checklist (Continued) Comment Please check either Yes or No. If No, include comment number or date or Date Is there a fire protection system in the computer room? Is antistatic flooring installed? Are there any equipment servicing hazards (loose ground wires, poor lighting, and so on)?
General Site Preparation Guidelines Delivery Survey Delivery Survey The delivery survey forms list delivery or installation requirements. If any of the items on the list apply, enter the appropriate information in the areas provided on the form. Special instructions or recommendations should be entered on the special instructions or recommendations form.
General Site Preparation Guidelines Delivery Survey • Special security requirements applicable to the facility, such as security clearance Figure 2-13 Delivery Survey (Part 1) DELIVERY CHECKLIST DOCK DELIVERY Is dock large enough for a semitrailer? Circle the location of the dock and give street name if different than address. North West East...
General Site Preparation Guidelines Delivery Survey Figure 2-14 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 flights and stairway dimensions. Number of flights Number of flights Width...
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General Site Preparation Guidelines Delivery Survey Chapter 2...
General Site Preparation Guidelines Delivery Survey Site Preparation Glossary Apparent power A value of power for AC circuits that is calculated as the product of RMS current times RMS voltage, without taking the power factor into account. ASHRAE Standard 52-76 Industry-standard term for air filtration efficiency set forth by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc.
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General Site Preparation Guidelines Delivery Survey Latent cooling capacity The capability of an air-conditioning system to remove heat from the air. Leakage current A term relating to current flowing between the AC supply wires and earth ground. The term does not necessarily denote a fault condition. In power supplies, leakage current usually refers to the 60-Hz current, which flows through the EMI filter capacitors that are connected between the AC lines and ground.
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General Site Preparation Guidelines Delivery Survey 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 measured using a typical load and target voltage.
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General Site Preparation Guidelines Delivery Survey Chapter 2...
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Templates This appendix contains blank floor plan grids and equipment templates. Combine the necessary number of floor plan grid sheets to create a scaled version of the computer room floor plan. Appendix A...
Templates Figure A-1 on page 52 illustrates the overall dimensions required for an HP Integrity rx8620 Server. Figure A-1 HP Integrity rx8620 Server Space Requirements 23.5 in 59.7 cm 36.5 in 92.7 cm 78.8 in 1.96 m Site_14 04/12/01 Appendix A...
Templates Equipment Footprint Templates Equipment Footprint Templates Equipment footprint templates are drawn to the same scale as the floor plan grid (1/4 inch = 1 foot). These templates show basic equipment dimensions and space requirements for servicing. The service areas shown on the template drawings are lightly shaded. The equipment templates should be used with the floor plan grid to define the location of the equipment that will be installed in your computer room.
Templates Computer Room Layout Plan Computer Room Layout Plan Use the following procedure to create a computer room layout plan: Step 1. Remove several copies of the floor plan grid. Step 2. Cut and join them together (as necessary) to create a scale model floor plan of your computer room. Step 3.
NOTE located in “Sample Site Inspection Checklist” on page 40 for the checklist. HP installation specialists use this floor plan during equipment installation. Figure A-2 HP Integrity rx8620 Server Cabinet Template 24.0 in 58.8 cm Rack Rear Rear Anti-Tip Foot...
Index air-distribution systems computer room considerations AC power specifications cooling requirements air ducts dust and pollution control illustrated electrostatic discharge air-conditioning ducts prevention requirements humidity level system recommendations static protection measures air-distribution system environmental specifications room space return air equipment footprint templates example installation schedule backplane facility characteristics...
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Index raised floor ground system, illustrated server computer room layout sources of electrical disturbances space requirements computer room layout delivery space requirements equipment footprint templates system backplane system installation guidelines data communications cables wiring connections temperature wiring connections...