HP Blade Server bh7800 Site Preparation Guide June 2002 Manufacturing Part Number: Version: Third Edition USA © Copyright 2002
Legal Notices 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. Restricted Rights Legend.
Contents 1. HP Blade Server bh7800 Overview Display Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . System Backplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents Cord Set Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 C. Conversion Factors and Formulas Conversion Factors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Index . .
Figures Figure 1-1. LCD Display Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 1-2. bh7800 Backplane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 1-3. bh7800 Power Supplies (Chassis Rear View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 1-4. HP Server bc1100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figures vi
Tables Table 1. Publication History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Table 1-1. bh7800 Server Weights and Dimensions as Shipped on a Pallet . . . . . . . . . . . . . . . . . . . Table 2-1. Floor Loading Terminology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Table 3-1. Server Chassis Power Cords. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tables viii
Preface Before preparing your site for the HP Blade Server bh7800, familiarize yourself with the components that comprise the bh7800. Use the following reference to determine where to start.
Book Layout • Chapter 1 – provides an overview of the bh7800 components, cooling air flow, shipping dimensions and weight and CFM value. • Chapter 2 – provides specific information ensuring the site is ready when the bh7800 arrives. Voltage fluctuations, grounding and floor loading are some of the topics covered. • Chapter 3 – covers how to power up the bh7800 and how to power down the bh7800. Power distribution information and power cords required are specified.
1 HP Blade Server bh7800 Overview The HP Blade Server bh7800 provides customers with a single chassis that can house up to 16 functionally separate servers, controlled by one management blade. The form factor for all the blades uses the CompactPCI standard.
HP Blade Server bh7800 Overview column style rack. Hewlett-Packard Company offers kits for either type rack. The chassis provides slots in the front and rear for installation of server blades, and network blades. Each side accommodates 18 blades and can house up to eight server blades per side. This chapter provides a high level overview of the various components that comprise the blade server. It is not the intention of this chapter to cover how to operate the blade server.
HP Blade Server bh7800 Overview Display Panel Display Panel The bh7800 display panel provides the controls and indicators commonly used when operating the bh7800. There are two LCD display assemblies on the bh7800. Remote control over a network is another method used to operate the bh7800. One display is in the front, just above the card cage. The other is in the rear, just above the card cage. Both show identical data and are visible regardless of which side of the product you are on.
HP Blade Server bh7800 Overview System Backplane System Backplane The passive system backplane is centrally located in the bh7800 to accommodate front and rear card cages. 18 CompactPCI slots are available on each side with up to five connectors per slot. For the CompactPCI standard, the lower two connectors are used for CompactPCI standard connections, and the upper three connectors are for custom user applications.
HP Blade Server bh7800 Overview Power Supplies Power Supplies Each power supply uses two DC connectors that plug into the backplane, and an AC connector brings line power into the unit. Two power supplies and two power cords ship with the system. Each supply contains an internal fan for cooling. In the rear of each supply are two insertion/extraction handles and latch assemblies for ease of inserting or removing each power supply. Two captive screws secure each power supply to the system chassis.
HP Blade Server bh7800 Overview HP Server bc1100 HP Server bc1100 Up to 16 1 slot IA-32 server blades can be inserted in the bh7800 chassis. The 1 slot, 1way IA-32 blade server is a self-contained system. It includes all memory, processor, firmware, I/O adapters, and core I/O required to install the operating system. The board is CompactPCI and hot plug compliant and operates as a CompactPCI master in the host slot. It is also Network Equipment Building Standards (NEBS) compliant.
HP Blade Server bh7800 Overview Network Blade Network Blade The network blade is a 24-port 10/100 switch with a gigabit uplink connection. The blade provides 16 of the 24 ports to the backplane, and 8 remaining ports out to the bulkhead. In addition, the network blade comes in three uplink options: Tx (copper), Sx (short-wave optical), or Lx (long-wave optical). The bh7800 system must contain one network blade, but can optionally contain two.
HP Blade Server bh7800 Overview Management LAN Blade Management LAN Blade The two Rear Transition Modules (RTMs) are unique in the bh7800 product. The RTM is a pseudo standard CompactPCI solution. Each RTM is a 3U blade rather than a 6U blade. CompactPCI card format and the bulkhead is not a CompactPCI standard. A custom carrier holds each PCA in the bh7800 backplane. The custom card guide is inserted in a dedicated location in the rear card cage.
HP Blade Server bh7800 Overview Management Blade Management Blade The bh7800 includes a management blade that allows remote and local management of the individual server and network blades. The blade monitors the chassis environment such as power, temperature, and overall server blade health. The blade can be accessed via a serial connection on the chassis or it can be accessed via the control and management LAN. The blade provides management support for the console LAN management signals.
HP Blade Server bh7800 Overview Fan Modules Fan Modules There are two fan module assemblies in the bh7800. They are hot swap modules. Each fan module has an LED to indicate fan failure. Also, each fan can go into the fan module only one way due to the length and location of the fan cable with its blind mate connector. Once each fan module is securely seated in the chassis, two screws are tightened to secure each fan and prevent it from backing out of the chassis due to vibration.
HP Blade Server bh7800 Overview Slot Blocker Assembly Slot Blocker Assembly The bh7800 uses a closed, pressurized cooling system. Fans draw air in the bottom at the front of the chassis, direct it upwards across the front blades, over the top of the backplane, downwards over the rear blades and into the power supplies where it exits out the back of the bh7800.
HP Blade Server bh7800 Overview Cable Management Tray Cable Management Tray The ½ EIA unit high (1/2U) cable management tray provides a channel for cables and helps prevent the accidental disconnection of cables from their respective blades. The tray is provided for HP Rack System/E four post cabinets, Nortel four post cabinets and Chatsworth two post cabinets. The tray allows data cables to be securely attached to the chassis and to maintain the critical bend radius associated with high speed data cables.
HP Blade Server bh7800 Overview Front View Front View The components available at the front of this 13 EIA unit high (13U) server are • Eighteen individual CompactPCI slots supporting defined configurations for 1 slot and 2 slot PCA’s • One front LCD display panel • The system backplane is removable from the front and is centrally located in the chassis • Front cable management bracket (not shown) Figure 1-11 Chapter 1 bh7800 Front View 23
HP Blade Server bh7800 Overview Rear View Rear View The components available at the rear of this 13 EIA unit high (13U) server are • Two hot swap N+1 power supplies • Two hot swap N+1 fan modules (hidden behind the rear panel display) • Eighteen individual CompactPCI slots supporting defined configurations for 1 slot and 2 slot PCAs.
HP Blade Server bh7800 Overview Air Flow Air Flow Figure 1-13 bh7800 Cooling Airflow (Chassis Rear View) The bh7800 utilizes a front to back cooling scheme. Four 150mm diameter 48V DC fans cool the system, one in each power supply and two in independent carriers. Refer to Appendix A for System Specifications.
HP Blade Server bh7800 Overview Air Flow supplies and up through the front card cage. Air then passes over the top of the backplane, through the top rear fans and down through the rear card cage. It travels through the rear sections of the power supplies and out through the rear power supply fans.
HP Blade Server bh7800 Overview Shipping Dimensions and Weights Shipping Dimensions and Weights Table 1-1 lists the dimensions and weights of the bh7800 server with the shipping pallet. Table 1-1 Equipment bh7800 server on shipping palletab bh7800 Server Weights and Dimensions as Shipped on a Pallet Width (cm) 21.25 inches (53.98 cm) Depth/Length (cm) 30.50 inches (77.47 cm) Height (cm) 29.38 inches (74.63 cm) Weight (kg) 203 lbs (92.08 kg) a.
HP Blade Server bh7800 Overview Shipping Dimensions and Weights 28 Chapter 1
2 General System and Facility Guidelines This chapter provides general computer facility guidelines for planning and preparing the site. Careful site planning and preparation ensures trouble-free installation and reliable operation of HP servers. Factors that may contribute to less than optimal equipment operation are also highlighted. Refer to Appendix A for more information on guidelines specific to the bh7800.
General System and Facility Guidelines Electrical Factors Electrical Factors NOTE Electrical practices and suggestions in this guide are based on North American practices. For countries and areas outside North America, local electrical codes will take precedence over North American electrical codes. An example would be the recommendation that the PE (protective earthing) conductor be green with yellow stripes.
General System and Facility Guidelines Electrical Factors Sources of Voltage Fluctuations Voltage fluctuations, sometimes called glitches, affect the quality of electrical power.
General System and Facility Guidelines Electrical Factors Raceway Systems (Electrical Conduits) LAHJ Raceways (electrical conduits) form part of the protective ground path for personnel and equipment. Raceways protect the wiring from accidental damage and also provide a heatsink for the wires.
General System and Facility Guidelines Electrical Factors Dual Power Source Grounding When dual power sources are utilized, strong consideration should be given to measure voltage potentials. The use of dual power might create an electrical potential that can be hazardous to personnel and might cause performance issues for the equipment. Dual power sources might originate from two different transformers or two different UPS devices.
General System and Facility Guidelines Electrical Factors 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 contact on each end of the ground strap consists of a terminal and connection hardware (a 1/4-in. (6.
General System and Facility Guidelines Electrical Factors System Installation Guidelines This section contains information about installation practices. Some common pitfalls are highlighted. Wiring connections and data communications cable installations are discussed. NOTE In domestic installations, the proper receptacles should be installed prior to the arrival of Hewlett-Packard equipment. Refer to the appropriate installation guide for installation procedures.
General System and Facility Guidelines Environmental Factors Environmental Factors The environmental factors discussed in this section are: • Computer Room Preparation • Space Requirements • Floor Loading • Cooling Requirements • Air Conditioning Ducts • Humidity Level • Dust and Pollution Control • Metallic Particulate Contamination • Electrostatic Discharge (ESD) Prevention • Acoustics (noise reduction) Computer Room Preparation The following guidelines are recommended when preparing
General System and Facility Guidelines Environmental Factors Delivery plans should include the possible removal of walls or doors. The physical dimensions for applicable computers and peripheral equipment are summarized in Appendix A. Operational Space Requirements Other factors must be considered along with the basic equipment dimensions. Reduced airflow around equipment causes overheating, which can lead to equipment failure.
General System and Facility Guidelines Environmental Factors Floor Loading The computer room floor must be able to support the total weight of the installed computer system as well as the weight of the individual cabinets as they are moved into position. Floor loading is usually not an issue in nonraised floor installations. The information presented in this section is directed toward raised floor installations.
General System and Facility Guidelines Environmental Factors Table 2-1 Floor Loading Terminology (Continued) Term Average floor load Definition Computed by dividing total equipment weight by the area of its footprint. This value is expressed in lb/ft2 (kg/m2). Cooling Requirements Air conditioning equipment requirements and recommendations are described in the following sections. Appendix A summarizes air conditioning requirements for this HP server.
General System and Facility Guidelines Environmental Factors • Chilled water package unit with remote chilled water plant. These systems are available with up or down discharge and are usually located in the computer room. • Central station air handling units with remote refrigeration equipment. These systems are usually located outside the computer room.
General System and Facility Guidelines Environmental Factors Basic Air Distribution Systems A basic air distribution system includes supply air and return air. An air distribution system should be zoned to deliver an adequate amount of supply air to the cooling air intake vents of the computer system equipment cabinets. Supply air temperature should be maintained within the following parameters: • Ceiling supply system—From 55 °F (12.8 °C) to 60 °F (15.6°C) • Floor supply system—At least 60 °F (15.
General System and Facility Guidelines Environmental Factors Air Conditioning Ducts Use separate computer room air conditioning ductwork. If it is not separate from the rest of the building, it might be difficult to control cooling and air pressure levels. Ductwork seals are important for maintaining a balanced air conditioning system and high static air pressure. Adequate cooling capacity means little if the direction and rate of air flow cannot be controlled because of poor duct sealing.
General System and Facility Guidelines Environmental Factors • Eating or drinking—Establish a no eating or drinking policy. Spilled liquids can cause short circuits in equipment such as keyboards. • Tile floors—Use a dust-absorbent cloth mop rather than a dry mop to clean tile floors. Special precautions are necessary if the computer room is near a source of air pollution. Some air pollutants, especially hydrogen sulfide (H2S), are not only unpleasant but corrosive as well.
General System and Facility Guidelines Environmental Factors Acoustics (noise reduction) 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. • Sound deadening—Cover the walls with curtains or other sound deadening material.
3 HP Blade Server bh7800 Power This chapter provides part numbers for all the cord sets (power cords) available for the bh7800 server. Basic power up and power down is covered. The power distribution unit information and cord set part numbers complete the chapter.
HP Blade Server bh7800 Power HP Blade Server Initial Power-Up HP Blade Server Initial Power-Up Before applying power to the bh7800, verify that the terminal (a PC with a terminal emulator installed will suffice) is connected to the management blade and turned on. Power Cords Supplied Each bh7800 power supply uses a C19 type receptacle. There are multiple power cord options available for the bh7800. Table 3-1 contains a list of the power cords approved to ship with the bh7800.
HP Blade Server bh7800 Power HP Blade Server Initial Power-Up HP Server Power-Up Step 1. Locate the server blade in slot F1 (server front, slot 1) and plug in a VGA monitor to the monitor port. Step 2. Plug in a keyboard to one of the two USB ports on the same server blade in slot F1. Without further interaction, the VGA monitor will begin to display boot/self test data and, upon successful completion of boot and self test procedures, the login prompt will be displayed.
HP Blade Server bh7800 Power Connecting AC Power using a PDU Connecting AC Power using a PDU The bh7800 temporarily draws a large inrush current, when first connected to an AC power source. The inrush current is much greater than the bh7800’s normal operating current and generally, the AC power source can handle the normal inrush current. Power Distribution Unit (PDU) A PDU may be used at customer sites to reduce the number of circuit breaker slots needed.
A System Specifications and Requirements This appendix contains specific parameters applicable to the bh7800 server. Temperature, power requirements, and power dissipation figures are provided.
System Specifications and Requirements System Specifications System Specifications NOTE The Marked Electrical for the bh7800 server is 16 A. The recommended circuit breaker size is 20 amps for North America. For countries or areas outside North America, consult your local electrical authority having jurisdiction for the recommended circuit breaker size.
System Specifications and Requirements System Specifications Figure A-1 Appendix A Power Supply Label 51
System Specifications and Requirements System Specifications Table A-2 Environmental Conditions Parameters Conditions Temperature Operating 68 °F to 77 °F (20 °C to 25 °C) Recommended 41 °F to 95 °F (5 °C to 35 °C) up to 5000 feeta Non-Operating -40 °F to 158 °F (-40 °C to 70 °C) (Storage) Shock Immunity 18 °F per hour (10 °C) (Maximum Rate of Change) Humidity (noncondensing) Operating 40% to 60% RH at 72(F (22 °C) Recommended Non-Operating 5% to 90% RH at 149(F (65 °C) (Storage) Altitude (ASL
System Specifications and Requirements System Specifications This table can be copied and used to plan your air conditioning requirements for your server(s). Use the footnotes at the bottom of this page to assist in calculating the values. See Table A-6 for an example of how to arrive at a value required for air conditioning based on the system configuration described for Table A-6. Table A-5 Component Power Dissipation and Air Conditioning Requirement Summary Quantity Multiply Qty.
System Specifications and Requirements System Specifications To illustrate how to use Table A-5, let us assume that we have a single chassis server loaded with 10 HP server bc1100 blades, one network blade, one management blade, and two management LAN blades. Table A-6 Component Power Dissipation and Air Conditioning Requirement Example Quantity Multiply Qty. by Watts value then divide total Watts by 0.
B Power Plug Configuration There are several different cord sets (power cables) designed for the bh7800. The country or area destination will determine which cord set ships with the bh7800. This guide provides the site preparation specialist with the knowledge of what to expect to receive based on their geographic destination.
Power Plug Configuration Cord Set Description Cord Set Description The power cables (cord sets) shipping with the bh7800 will be 4.5 meter or 2.5 meter long cables. The cord set below shows a 5-20P plug on one end and the C19 female plug on the other end. Figure B-1 Cord Sets Example of a 5-20P to C19 Cord Set Female End of Cord Set The female plug for the bh7800 is a C19 type plug that mates with the C20 receptacle in each power supply installed in the bh7800.
Power Plug Configuration Cord Set Description Male End of Cord Set Depending on the country or area the bh7800 is shipped to, the male plug on the other end of the power cable will vary.
Power Plug Configuration Cord Set Description 60 Appendix B
C Conversion Factors and Formulas Conversion factors and formulas for data calculations for systems not conforming specifically to the configurations listed in this Site Preparation Guide are provided. Conversion factors used in this document are provided.
Conversion Factors and Formulas Conversion Factors Conversion Factors Refrigeration • 1 watt = kcal/h • 1 watt = 3.412 Btu/h • 1 watt = 2.843 x 10-4 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.
Glossary A-B E-K 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. EIA unit The Electronic Industries Association (EIA) defines this unit of measurement to be 1.75 inches in height. So then, 1U equals 1.75 inches (1U equals 44.45 mm).
Glossary Latent cooling capacity L-N Latent cooling capacity An air conditioning system's capability 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 Hertz current, which flows through the EMI filter capacitors that are connected between the AC lines and ground.
Glossary Watt U-Z USB USB is a serial bus used for human interface devices as well as low-bandwidth multimedia devices. It is fully plug and play and hot pluggable. Vapor seal A vapor seal is an essential part of preventing moisture infiltration into or migration out of a critical space, such as a data processing center or other room that contains sensitive electronic instrumentation.
Glossary Watt 66 Glossary
Index A acoustical noise reduction, 44 air conditioning ducts, 42 air distribution systems, three types of, 41 air flow rear view, 25 side view, 26 air intake temperature, 26 B backplane, 14 bh7800 front view, 23 inrush current, 48 rear view, 24 C C19 type plug, 58 C20 type plug, 58 cable management tray, 22 circuit breaker sizing, 30 computer room preparation, 36 computer safety ground, 32 conversion factors, 62 cooling requirements, 39 D data communications cables, 35 derate circuit breaker sizing, 30 def
Index static charge contributors, 43 precautions, 43 static protection measures, 43 supply air temperature, 41 V voltage fluctuation sources, 31 W wiring selection, 31 Z zinc whiskers, 42 66
