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HP rp7400 Manual

Site preprepation - rp7400
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Download this manual See also: Installation Manual
Review the Sales Order
Customer sales order information is available through the Support
Connect system and through the WWOMS (World-Wide Order
Management System). Carefully review the sales order information to
assess:
• the number of integrated systems ordered
• the number of peripheral cabinets ordered
• the number and type of PDUs
• special configuration requirements
• delivery dates
1

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Summary of Contents for HP rp7400

  • Page 1 Review the Sales Order Customer sales order information is available through the Support Connect system and through the WWOMS (World-Wide Order Management System). Carefully review the sales order information to assess: • the number of integrated systems ordered • the number of peripheral cabinets ordered •...
  • Page 3 Plan the Site Visit After a careful review of the sales order, a Hewlett-Packard Site Preparation Specialist will make arrangements for a preliminary on-site meeting. The purpose of this meeting will be to discuss the site planning and preparation needs including electrical, mechanical, and physical system requirements.
  • Page 4 the Site Planning Team (see Review Customer Responsibilities).
  • Page 5 Visit the Site During the preliminary site visit, it is important that the Hewlett-Packard Site Preparation Specialist and the customer representative accomplish the following major tasks:...
  • Page 7 Verify system complicity with regulatory standards The following checklist should be filled out during the preliminary site visit to ensure regulatory standards are met and that any site deficiencies are identified: Table 2 Computer room Area or condition Is there a copy of the completed floor plan? Is there adequate space for maintenance needs? Is access to the site or computer room restricted? Is the computer room structurally complete?
  • Page 8 Table 2 Does the input voltage correspond to equipment specifications? Does the input frequency correspond to equipment specifications? Are lightning arrestors installed? Is power conditioning equipment installed? Area or condition Is there a dedicated branch circuit for equipment? Is the dedicated branch circuit less than 250 feet (72.5 meters)? Are the input circuit breakers adequate for equipment loads? Safety Area or condition...
  • Page 9 Table 2 Storage Area or condition Are cabinets available for tape and disc media? Is shelving available for documentation? Training Area or condition Are personnel enrolled in the System Administrator’s Course? Is on-site training needed?
  • Page 11 The following schedule lists the sequence of events for an ideal system installation. • 60 days before installation — Floor plan design completed and mailed to Hewlett-Packard • 30 days before installation — Primary power and air conditioning installation completed —...
  • Page 13 Specify Hard Floor Requirements A cable trough may be required when an rp7400 system is installed in a computer room that does not have a raised floor. The power drops and interface cables from the SPU are routed down through the cable guides and into the cable trough.
  • Page 14 from the SPU and peripheral cabinets.
  • Page 15 Specify Power Protection The only supported HP PowerTrust UPSs are the 3.0kVA and 5.5kVA models. These UPSs can provide power protection to a single rp7400 SPU. Recommendations for other manufacturers and models are not yet determined. HP rp7400 server power supplies may be plugged directly into the customer’s site UPS.

  • Page 17: System Electrical Specifications

    Specify the System Requirements System Electrical Specifications Table 3 Description Specification 200 to 240 VAC AC Input Voltage Range AC Input Line frequency 50 to 60 Hz AC Input Current 18 A (max load at 200 VAC)12 A (max load at 240 VAC) AC Inrush Current AC Input Power...

  • Page 19: Effect Of Humidity On Esd Charge Levels

    Determine the ESD Requirements 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 Effect of humidity on ESD charge levels The table following lists charge levels based on personnel activities and humidity levels.
  • Page 20 laying tiles). • Use conductive wax if waxed floors are necessary. • 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.
  • Page 21 Determine RFI Requirements Table 5 Description Specification Radiated Field Immunity 10 Volts/Meter (14KHz to 1 GHz) Magnetic Field Immunity 1 Gauss (47.5 Hz to 198 Hz) Electrostatic Discharge Immunity 15 kV (Maximum, with no loss of function) 25 kV (Maximum, with no component damage) Electrostatic Contact Discharge 4 kV CD, 8kV AD (No Effect)
  • Page 23 The customer is responsible for making sure their computer system installation is in compliance with all local laws, regulations, and codes for mechanical, building, and electrical distribution systems prior to system installation. The Hewlett-Packard Site Preparation Specialist can assist in determining your local regulations.
  • Page 25 Effects of Altitude Some old models of tape drives, including those supplied by Hewlett-Packard, have vacuum column transport mechanisms that are affected by atmospheric pressure. Adjustments to these mechanisms may be required to compensate for the lower atmospheric pressure at...
  • Page 27 If a new site is to be built or an existing structure modified, consult local building codes for fire prevention and protection. Also, consult with the Hewlett-Packard Site Preparation Specialist and local fire inspector for additional information.
  • Page 29 Define E-Stop Requirements The computer system power panel should include a shunt-trip wired to an emergency shut-off switch and a thermostat device. Electrical codes commonly stipulate that this button will remove both power AND airflow from the computer room. This is for deactivating all equipment power in case of an emergency or in case room temperature exceeds safe operating conditions.

  • Page 31: Special Tools

    Determine Other Needs Special Tools If an rp7400 server is being added or installed in the top of a cabinet, a step ladder and a Genie® Load Lifter will be required. Telephone You should plan to install a telephone with a long cord near your computer system to expedite consultations with Hewlett-Packard Sales Representatives, CEs, AEs, and Response Center personnel.
  • Page 32 Lighting Adequate lighting and utility outlets in a computer room reduce the possibility of accidents during equipment servicing. Safer servicing is also more efficient and, therefore, less costly. For example, it is difficult to see cable connection points on the hardware if there is not enough light.
  • Page 33 Computer room space planning can also be performed using scaled templates and cutouts. In order to complete the computer room layout, the Hewlett-Packard site preparation specialist will need to do the following: • Get the computer room dimensions from the customer •...
  • Page 35 30 days prior to the scheduled installation date. The Hewlett-Packard site preparation specialist may assist in arranging for the necessary contractors if requested by the customer. It is the customer’s responsibility to ensure their computer system site is in compliance with all local laws, regulations, and codes for mechanical, building, and electrical distribution systems prior to system installation.
  • Page 37 Carefully read the Site Planning and Warranty Information provided with your system. The HP rp7400 Enterprise Servers are primarily designed to be installed and operated in computer room environments. DO NOT INSTALL HP rp7400 ENTERPRISE SERVERS IN AN OFFICE ENVIRONMENT.

  • Page 38: Local Codes

    The customer is responsible for making sure their computer system installation is in compliance with all local laws, regulations, and codes for mechanical, building, and electrical distribution systems prior to system installation. The Hewlett-Packard Site Preparation Specialist can assist you in determining your local regulations.
  • Page 39 • Scheduling all events related to site completion Members of the Site Planning Team should include the Site Coordinator, Principal Operator, and the Hewlett-Packard Site Preparation Specialist. When possible, the electrical contractor, a site construction coordinator (familiar with local electrical codes), and an air conditioning specialist...

  • Page 41: Site Planning Visit

    Agreement, Installation Support Plan, and on a time and materials basis. Third Party Service If an HP rp7400 Enterprise Server and/or applications software is purchased from a “third party vendor”, that third party is responsible for providing consultation services on the system operation and applications software.
  • Page 43 Specify the Space for Unpacking Specify Uncrating Space HP rp7400 Systems are shipped in integrated cabinets on a 40in. x 48in. pallet. The combined height of the packaged container and the pallets are as follows: • 1.1 meter rack - 60in.
  • Page 45 Specify Raised Floor Requirements If a raised floor system is used, a complete grounding grid for maintaining equal potential over a broad band of frequencies should be installed. The grounding grid should be connected to the equipment cabinet and electrical service entrance ground at multiple connection points via minimum #6 AWG (16mm2) wire ground connector.
  • Page 46 (to provide low resistance), and attachment points for connection to service entrance ground and HP rp7400 server equipment. The use of conductive floor tiles with this style of grid further enhances ground performance. • Adequate — If the preceding systems are impossible to implement, contact a local Hewlett-Packard site preparation specialist.
  • Page 47 impedance than the techniques used in the excellent and good ground grid systems, and the resulting ground system will not perform as well. In a raised floor environment, the power drops and interface cables from the equipment are routed down through the panel pull section, through a grommet-protected opening (beneath the floor level), and under the floor panels, as shown in the following illustration:...

  • Page 48: Air Plenum

    Air Plenum In some data processing environments, the underflow area is used as an air plenum, with cool, controlled air flowing under the raised floor and distributed to the heat loads out in the data processing area. Return air is routed back to the tops of the process control HVAC units. This can create some potential problems: •...
  • Page 49 shock hazard may exist. For this reason, it is critical that a raised floor be properly grounded. Performance Drain A raised floor acts as a voltage divider -- a capacitive plate -- and it may create a performance issue for computer systems if improperly grounded. Computer systems create both electrostatic discharge and electromagnetic interference, and as processor speeds increase, these effects increase as well.

  • Page 51: Raised Floor Loading

    Average floor load Computed by dividing the total equipment weight by the area of its footprint. This value is expressed in lb/ft2 (kg/m2). The average floor load for a maximally-configured HP rp7400 cabinet is approximately 215.5 lb/ft2.

  • Page 52: Typical Raised Floor Site

    Typical raised floor site Following is an example of a computer room raised floor system that is satisfactory for the installation of an HP rp7400 system. These specifications are for the Tate Access Floors Series 800 all-steel access floor with bolt-together stringers and 24-in. (61.0-cm) by 24-in. (61.0-cm)
  • Page 53 Table 7 Item Rating Dead load 7 lb/ft2 (34.2 kg/m2) Live load 313 lb/ft2 (1528.3 kg/m2) 1250 lb (567 kg) Concentrated load Ultimate load 4000 lb (1814 kg) per panel 400 lb (181 kg) Rolling load a. With 0.08 in. (0.2 cm) span maximum deflection. b.
  • Page 55 Modular PDUs Two modular PDUs are available for use with the rp7400 product: • 20A modular PDU, HP product number E7674A. This PDU has seven C13 outlets and one C19 outlet. Note that if this PDU is used to...
  • Page 56 SPU, any other peripherals must have their power supplied by additional PDUs in the cabinet. The PDU power cord (HP part number 8120-6903) has an L6-20P plug which must be plugged into an L6-20R wall or floor receptacle.

  • Page 57: Grounding Systems

    Specify Grounding Requirements Grounding systems HP rp7400 servers require two methods of grounding: • Power distribution safety grounding • High frequency intercabinet grounding NOTE Some of the grounding requirements described here may differ outside of North America. Power distribution safety grounding...
  • Page 58 #6 AWG (16mm2) wire ground conductor. See the raised floor grounding illustration for details. Hewlett-Packard recommends the following three approaches: • Excellent—Add a grounding grid to the subfloor. The grounding grid should be made of aluminum strips mounted to the subfloor. The strips should be 0.032 in.
  • Page 59 (to provide low resistance and attachment points for connection to service entrance ground and HP rp7400 server equipment). The use of conductive floor tiles with this style of grid further enhances ground performance. • Adequate—If the excellent or good ground grid systems are impossible to implement, contact your Hewlett-Packard site preparation specialist.
  • Page 60 This cable trough assembly may be used as the conduit for high frequency ground. In addition to possible ground connections to Hewlett-Packard cabinets, the cable trough should be connected to the electrical service ground at multiple connection points via a minimum #6 AWG (16mm2) wire ground conductor.
  • Page 61 Equipment grounding implementation details If it has been determined to be necessary, connect all Hewlett-Packard equipment cabinets to the site ground grid as follows: • 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 62 compound (similar to Burndy Penetrox).
  • Page 63 Cable trough top Cable trough to cable trough is as grounding s Ground connection of panel ground wire (inside trough) Groun Hex bolt, lle washer and nut Cable troug Drill trough as required en end at panel Hex bolt, Grounding braid to bellville washer and nut computer equipment...
  • Page 65 At the SPU level, enhanced power availability is achieved through the n+1 hot-swappable power supplies. Two power supplies are required for normal rp7400 system operation and in order to allow the system to boot. The third power supply is a redundant power supply that provides the n+1 capability.
  • Page 66 Some customer sites with critical applications may require high availability power beyond the scope of the equipment provided by Hewlett-Packard. Computer room high-availability can be achieved by: • multiple substation power feeds off a single power substation • feeds from multiple power substations Such implementations are costly and complex, but have the advantage of eliminating single point of failure to the equipment.
  • Page 67 Determine the Acoustic Requirements The acoustic specifications for rp7400 servers are as follows: Sound power 7.5 Bels LwA maximum at >31 Sound pressure 61 dB maximum at > 31 C in operator position. 58 dB maximum at >31 C in standby position.
  • Page 69 Determine Temperature/Humidity Requirements The following table lists the computer room temperature and humidity specifications for rp7400 servers. Temperature and humidity specifications Parameter Recommended Recommended Maximum Operating Range rate of change (per hour) Temperature to 104 F nonrepetitive to 40 C nonrepetitive...

  • Page 71: Convenience Wall Outlets

    Identify Sources of Electrical Interference The following are some of the sources of electrical interference that may affect rp7400 servers. Convenience Wall Outlets Power outlets for building maintenance equipment (i.e., vacuum cleaners, floor buffers, etc.) must be wired from circuit breakers on a power panel separate from the computer system panel.

  • Page 73: Flammable Materials

    Static electricity can often be significantly reduced by using a humidifier. (Hewlett-Packard recommends a heat evaporating type humidifier and strongly recommends against using a cold water...
  • Page 74 Other ways to minimize electrostatic discharge are by using specially grounded mats in front of the computer system or by treating carpeting with anti-static spray. Anti-static spray is not recommended because it finds its way into the system intake filter and tends to coat the circuitry. If spray is used, it should be applied while the system is turned off.
  • Page 75 Identify Telephone Requirements and Define Remote Access At least two communication lines are required for rp7400 servers: one for the remote console facility, and another for UUCP. HP rp7400 servers provide remote console access via a modem for the secure console LAN, which is separate from the site or computer room’s campus LAN.
  • Page 77 Identify Special Network Requirements HP rp7400 servers may require as many as three unique IP addresses. • The rp7400 server requires it own IP address. • The Guardian Service Processor, as a separate network device, has to have its own IP address, gateway, and subnet mask configured at the site in order to be separately addressed.
  • Page 79 SPU cabinet. • Service area — The HP recommended service area for the front and rear of the rp7400 SPU should not take precedence over local codes and regulations. However, HP does require a minimum of 0.91 meter (3 ft.) of clearance on the front or back along with 1.22 meter (4 ft.) on...
  • Page 81 Verify that serviceability space has been included in the floor layouts. • Cooling needs. Verify that the customer site air conditioning meets the requirements for rp7400 systems. Verify that the configuration of the system cabinets does not create air temperature problems for surrounding equipment.

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