HP Integrity cx2620 Site Preparation Guide HP Part Number: AB587-96013 Published: January 2007
© Copyright 2007 Hewlett-Packard Development Company, L.P Legal Notices 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. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. Printed in U.S.A.
Table of Contents About This Document.......................................................................................................11 Intended Audience...................................................................................................................................11 New and Changed Information in This Edition..........................................................................................11 Publishing History................................................................
Raceway Systems (electrical conduits) (LAHJ).................................................................................26 Building Distribution.....................................................................................................................26 Grounding Systems............................................................................................................................26 Power Distribution Safety Grounding (LAHJ).........................................................
Index.................................................................................................................................
List of Figures 1-1 1-2 1-3 2-1 2-2 2-3 2-4 2-5 2-6 2-7 2-8 2-9 2-10 2-11 2-12 2-13 2-14 HP Integrity cx2620 Server............................................................................................................14 Chassis Ground Lug......................................................................................................................15 Airflow Through the Server..........................................................................................................
List of Tables 1 Publishing History Details.................................................................................................................11 1-1 Minimum/Maximum Configuration.............................................................................................13 1-2 Server Dimensions and Weights....................................................................................................14 1-3 System Power Specifications.........................................................
About This Document This document describes how to prepare your site for installation of your HP Integrity cx2620 server. The document printing date and part number indicate the document’s current edition. The printing date changes when a new edition is printed. Minor changes may be made at reprint without changing the printing date. The document part number changes when extensive changes are made. Document updates may be issued between editions to correct errors or document product changes.
KeyCap Emphasis Bold Bold ComputerOut UserInput Command Variable [] {} ... | The name of a keyboard key. Note that Return and Enter both refer to the same key. Text that is emphasized. Text that is strongly emphasized. The defined use of an important word or phrase. Text displayed by the computer. Commands and other text that you type. A command name or qualified command phrase.
1 System Specifications This chapter provides information on the basic system configuration, physical specifications, and requirements for the HP Integrity cx2620 server.
Figure 1-1 HP Integrity cx2620 Server chasoblq Dimensions and Weights This section provides dimensions and weights of the server. Table 1-2 Server Dimensions and Weights Dimension Value Height 17.8 cm (7 in) (4U) Width 44.5 cm (17.5 in) Depth 50.8 cm (20 in) Weight 28.1 kg (62 lb) Unloaded 31.75 kg (70 lb) Fully loaded Electrical Specifications This section provides electrical specifications for the server.
must be electrically isolated by double or reinforced insulation from any hazardous ac source. The dc source must be capable of providing up to 650 Watts of continuous power per feed pair. WARNING! You are responsible for installing a properly rated dc power disconnect for the server system. This main disconnect must be readily accessible, and it must be labeled as controlling power to the server.
Disconnect Device and Branch Circuit Protection WARNING! Failure to provide an appropriate disconnect device and branch circuit protection may endanger service personnel. Serious injury and equipment damage may result if this warning is not observed. A suitable disconnect device must be provided as part of the building installation. The purpose of the disconnect device is to provide an easy and accessible means for removing power from the product for servicing.
Table 1-5 CPU Power Consumption Core CPU Watts Single-core Itanium (1P/1C) 1.6 GHz with 3 MB of cache 100 Dual-core Itanium (1P/2C) 1.4 GHZ with 12 MB of cache 100 Dual-core Itanium (1P/2C) 1.6 GHZ with 18 MB of cache 100 Environmental Specifications This section provides the temperature and humidity requirements, noise emission, and air flow specifications for the server. Temperature and Humidity Ambient intake air temperature is often different from ambient room temperature.
Cooling Figure 1-3 Airflow Through the Server airflow2 Overall System Cooling The cabinet incorporates front to back airflow across the entire chassis. Four 80 mm, dual blade fans, mounted vertically in the front of the chassis, push air through the CPU, memory, and PCI-X sections. One 80 mm, dual blade fan and the internal power supply fans cool the lower section of the chassis. The five 80 mm fans are controlled by circuits of the fan control board.
Power Supply Cooling Cooling for the power supplies is provided by the 60 mm fans mounted in each of the power supply assemblies. Air is pushed through the power supply by the 60 mm fans and exhausted out the rear of the chassis. PCI-X/Mass Storage Section Cooling One 80 mm, dual blade fan pushes airflow through the PCI-X card cage. The fan is controlled by the room ambient temperature and runs at the speed necessary to maintain proper internal temperature throughout the PCI-X card cage.
Table 1-8 Condition Typical Heat Release Airflow, Nominal Voltage -40 to -60 Vdc Minimum Config. 340 Watts Maximum Config. 650 Watts Typical Config. 580 Watts Airflow, Maximum at 35ºC 1 Server 178 CFM 302 m³/hr 216 CFM 367 m³/hr ASHRAE Class 1 28.1 kg 31.75 kg (62 lb - 70 lb) 31.75 kg (70 lb) Rack W: 44.5 cm (17.5 in) D: 50.8 cm (20 in) H: 17.8 cm (7 in) Minimum Config. Maximum Config. Two CPUs, two power supplies, 32 GB DIMMs, one DVD or one CD-RW/DVD, four PCI–X card, three HDDs.
2 General Site Preparation Guidelines This chapter contains recommendations and best practices to consider for improving site efficiency and tolerance before the installation or operation of an HP server system. This general information is intended for different server models and vendor sites around the world and is not a substitute for recommendations or requirements from the manufacturer or vendor of a specific product.
• • There are no daisy-chained receptacles, hot, neutral, or ground wires. The system is sourced from higher distribution voltages. AC Power Quality Devices HP products have a wide range of voltage tolerances. In general, approximately 10 percent of the nominal voltage is sufficient for the marked electrical rated voltage. The best operating margin is in the middle of this range. Your business needs will dictate the business risk you can withstand.
• • • • • Neutral and ground wires have specific uses. Do not interchange them. Do not use conduit grounds in place of a separate grounding conductor to each receptacle. Size ground wires to be equal to the power source wires. Do not daisy chain phase, neutral, and ground wires. If the system is on raised flooring, use a 2-foot x 2-foot (61-cm x 61-cm) grounding grid. Comprehensive Discussion IMPORTANT: Electrical practices and suggestions in this guide are based on North American practices.
Most computer room installations are equipped with the following fire protection devices: • • • Smoke detectors Fire and temperature alarms Fire extinguishing system Additional safety devices are: • • • Circuit breakers An emergency power cutoff switch Devices specific to the geographic location for example, earthquake protection Fire Suppression Though fires in computer rooms are rare, they are a critical safety and business consideration.
on equipment or applicable product-specific documentation for such devices to determine the power required to support these devices. NOTE: HP recommends that you have dedicated breakers for peripheral equipment. Electrical Load Requirements (Circuit Breaker Sizing) IMPORTANT: Local Authority Has Jurisdiction (LAHJ) and should make the final decision regarding adherence to country- specific electrical codes and guidelines.
Missing-phase and low-voltage detectors Online uninterruptible power supply (UPS) Shuts equipment down automatically when a severe power disruption occurs. For peripheral equipment, these devices are recommended but optional. Keeps input voltage to devices constant and should be considered if outages of one-half cycle or more are common Refer to qualified contractors or consultants for each situation.
Main Building Electrical Ground The main electrical service entrance equipment should have an earth ground connection, as required by applicable codes. Connections such as a grounding rod, building steel, or a conductive type cold water service 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.
IMPORTANT: Regardless of the grounding connection method used, the raised floor should be grounded 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 Better Best Use the raised floor structure as a ground grid.
3. 4. 5. Check that the braid contact connection points are free of paint or other insulating material and treated with a contact enhancement compound (similar to Burndy Penetrox). Attach the other end to the nearest pedestal base (raised floor) or cable trough ground point (nonraised floor). After achieving a safe and effective 50–60Hz grounding system and a safe and effective SRG, then consider cabinet-to-floor grounding. HP does not require this step.
• • Filtration at 35–55 percent spot efficiency per American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) Air conditioning heat load limits at 80 percent of total heating, ventilation and air conditioning (HVAC) capacity Airflow An incorrect public perception exists that cool, ambient air is consistent throughout a datacenter. That is, if the temperature of the room is measured at 20° C (68°F), then the equipment should be stable.
3,000 volts. HP recommends building this consideration into your designs for floor coverings, humidity control, airflow, dust control, and personnel traffic. Consider the following precautions against ESD: • Use antistatic flooring. • Maintain humidity at 40–55 percent relative humidity. • Follow airflow recommendations. • If raised flooring is present, use a 2-foot x 2-foot (61-cm x 61-cm) grounding grid. • Always use appropriately sized AC power ground wires.
Row Orientation Row orientation has an impact on the airflow, temperature, particulate contamination, and power distribution of the environment. Consider the following when planning equipment layout: • HP recommends the use of hot aisle (exhaust) and cold aisle (intake) orientation. • HP further recommends that the airflow (air conditioned supply and return) be parallel to the aisleways. • HP recommends adherence to the temperature and humidity standards located at: http://standards.inet.cpqcorp.
not limited to raised floor tiles, worn air-conditioning parts, heating ducts, rotor brushes in vacuum cleaners, or printer component wear. Because metallic particles conduct electricity, they have an increased potential for creating short circuits in electronic equipment. This problem is exaggerated by the increasingly dense circuitry of electronic equipment. Over time, very fine whiskers of pure metal can form on electroplated zinc, cadmium, or tin surfaces.
• • Air conditioning equipment air filters should have a minimum rating of 45% (based on “ASHRAE Standard 52-76, Dust Spot Efficiency Test”). Introduce only enough outside air into the system to meet building code requirements (for human occupancy) and to maintain a positive air pressure in the computer room. Air Conditioning System Types The following three air conditioning system types are listed in order of recommendation: • • • Complete self-contained package unit(s) with remote condenser(s).
Above ceiling ducted air distribution Supply air is ducted into a ceiling diffuser system from system upflow air conditioning equipment located in the computer room or from an air handling unit (remote). Return air from an above ceiling ducted air-distribution system can be DRA above the ceiling or CPRA. Adjust the supply air diffuser system grilles to direct the cooling air downward around the front of the server cabinets.
Table 2-1 Effect of Humidity on ESD Charge Levels Personnel Activity1 Humidity2 and Charge Levels (voltages)3 26% 32% 40% 50% Person walking across a linoleum floor 6,150 V 5,750 V 4,625 V 3,700 V Person walking across a carpeted floor 18,450 V 17,250 V 13,875 V 11,100 V Person getting up from a plastic chair 24,600 V 23,000 V 18,500 V 14,800 V 1 2 3 Source: B.A.
Table 2-2 Floor Loading Term Definitions Term Definition Dead load The weight of the raised panel floor system, including the understructure. Expressed in lb/ft2 (kg/m2). Live load The load that the floor system can safely support. Expressed in lb/ft2 (kg/m2). Concentrated load The load that a floor panel can support on a 1-in2 (6.45 cm2) area at the panel’s weakest point (typically the center of the panel), without the surface of the panel deflecting more than a predetermined amount.
When the flooring is replaced or a new floor is installed, Tate Access Floors recommends using the Series 1250 all-steel access floor with bolt-together stringers and 24 inches (61.0 cm) by 24 inches (61.0 cm) floor panels to support the HP installation. NOTE: If the specific floor being evaluated or considered is other than a Tate Series 800 floor, the specific floor manufacturer must be contacted to evaluate the floor being used.
Table 2-4 Product Technical Requirements Based on Customer Environments Environment Industry Equivalent:1 ASHRAE Operating Environment (ambient)2 Temp (°C, dry bulb)3 Relative Humidity %: Noncondensing Dewpoint Rate (max)4 of Chg (°C/hr, Allowable5 Recommended Allowable6 Recommended7 max) Controlled Computer Room 1 15 to 32 20 to 25 20 to 80 40 to 55 17 5 Office 2 10 to 35 20 to 25 20 to 80 40 to 55 21 5 3 5 to 35 8 NA 8 to 85 NA 28 NA Home 4 5 to 35 NA 8 to 85 NA 28 NA
NOTE: Several examples follow, though this 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 mates with the C20 receptacle in each power supply installed in the HP server.
Figure 2-6 IEC 309 Plug Figure 2-7 CEE 7-7 Plug Figure 2-8 L6-30 Plug Figure 2-9 NEMA 5-20P Plug (left) and receptacle (right) Figure 2-10 ISI 32 Plug Power Plug Configuration 41
Figure 2-11 L6-20 Power Cable Power Cable The power cable length and configuration varies based on the region the server ships to. Figure 1-12 provides an example of one power cable configuration used to supply power to the server. Figure 2-12 L6-20 Power Cable Conversion Factors and Formulas The conversion factors provided here are intended to ease data calculation for systems that do not conform specifically to the configurations listed in this Site Preparation Guide.
— — • 1 ft. = 0.305 m 1 CFM = 1.7m3/h kVA Conversions Three phase kVA = V × A × √3 / 1000 • Single phase kVA = V × A / 1000 Formulas • kVA = Voltage x Current (amps) • Watts = VA x PF • BTU = Watts x 3.
Table 2-5 Customer and Hewlett-Packard Information Customer Information Name: Phone No: Street Address: City or Town: State or Province: Country Zip or postal code: Primary customer contact: Phone No.: Secondary customer contact: Phone No.: Traffic coordinator: Phone No.: Hewlett-Packard information Sales representative: Order No: Representative making survey: Date: Scheduled delivery date: Table 2-6 Site Inspection Checklist Please check either Yes or No.
Table 2-6 Site Inspection Checklist (continued) Please check either Yes or No. If No, include comment# or date 14. Are there dc outlets available for servicing needs? (for example, vacuuming) 15. Does the input voltage correspond to equipment specifications? 15A Is dual source power used? If so, identify type(s) and evaluate grounding. 16 Does the input frequency correspond to equipment specifications? 17. Are lightning arrestors installed inside the building? 18.
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.
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 Dept Widt STAIRS Please list number of flights and stairway dimensions.
A Physical and Environmental Specifications Table A-1 provides temperature and airflow information for minimum, typical, and maximum configurations for the server. It also lists the server and rack weights and dimensions. Use this table as a convenient point of reference. Table A-1 Condition Typical Heat Release Airflow, Nominal Voltage -40 to -60 Vdc Minimum Config. 340 Watts Maximum Config. 650 Watts Typical Config.
Glossary A-B ASHRAE Standard 52-76 Industry standard for air filtration efficiency set forth by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc. ASL Above sea level. board A printed circuit assembly (PCA). Also called a card or adapter. Btu/h The abbreviation for British thermal units. The amount of heat required to raise one pound of water one degree fahrenheit per hour, a common measure of heat transfer rate.
Interference (EMI), Lightning and AC Power Fault, Steady State Power Induction, Corrosion, DC Potential Difference, Electrical Safety and Bonding and Grounding. O-R PCA Abbreviation for Printed Circuit Assembly also referred to as a Printed Circuit Board (PCB). PCI Currently, the most popular local I/O bus, the Peripheral Component Interconnect (PCI) bus was developed by Intel and introduced in 1993. PICMG A consortium of companies involved in utilizing PCI for embedded applications.
Index A air conditioning ducts, 35 equipment requirements, 33 system recommendations, 34 air distribution system above ceiling, 35 ceiling plenum, 34 room space return air, 34 underfloor, 34 B branch circuit protection, 16 C CFM, 18 circuit breaker, 16 computer room safety, fire protection, 23 cooling requirements, 33 D data communications cables, 29 dc source and main dc power disconnect, 15 disconnect device, 16 ducts, air conditioning, 35 E characteristics, 36 floor loading terms, 36 floor-plan grid
