HP NetServer LXr 8500 Rack Assembly and Cabling Reference Guide HP Part Number D7054-90015 Printed September 1999
Notice The information contained in this document is subject to change without notice. Hewlett-Packard makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.
Contents 1 Preparation for Cabling the NetServer LXr 8500 ........................................ 1 About Cabling the LXr 8500 ........................................................................... 1 Before You Use this Cabling Reference Guide ........................................... 1 The HP NetServer LXr 8500 ...................................................................... 1 Site Preparation.............................................................................................
Contents Overview of LXr 8500 Data Connections.................................................. 28 Attach Data Cables to the Server............................................................. 30 Attach Data Cables to Other Components ............................................... 32 Step 3: Cable the LXr 8500 for Power .......................................................... 32 Attaching Server and Component Power Cables......................................
1 Preparation for Cabling the NetServer LXr 8500 About Cabling the LXr 8500 NOTE A checklist for the cabling process is included in Appendix A. Before You Use this Cabling Reference Guide This HP NetServer LXr 8500 Rack Assembly and Cabling Reference Guide assumes that you have the rack assembly process completed, have mounted the HP NetServer LXr 8500, and are ready to cable the components in the rack enclosure. If you want a high-level checklist to use in this process, see Appendix A.
Chapter 1 Preparation for Cabling the HP NetServer LXr8500 Figure 1-1. The HP NetServer LXr 8500 Site Preparation You may want to copy and use the site preparation checklist in this section (Table 1-1). Doing so before you begin to install and cable the NetServer may reveal actions you can take to support your success. Also be sure to read the section on site preparation of circuit breakers.
Chapter 1 Preparation for Cabling the HP NetServer LXr8500 Site Preparation Checklist Table 1-1.
Chapter 1 Preparation for Cabling the HP NetServer LXr8500 Table 1-1. Site Preparation Checklist (Continued) Environment and Space Requirements Must meet OSHA, local code, and HP specifications for safety and supportability (3 feet minimum access in front and rear of electrical cabinets) Side access of 24 inches improves cable routing and management 24 hour air conditioning (68 - 72 deg. F; 20 - 22 deg.
Chapter 1 Preparation for Cabling the HP NetServer LXr8500 If you install several HP NetServers on one circuit, however, precautions are necessary. For instance, if there is a power failure and power is then restored all the servers immediately begin to draw inrush current at the same time. If the circuit breakers on the incoming power line have insufficient capability, they may trip and thus prevent the servers from powering up.
Chapter 1 Preparation for Cabling the HP NetServer LXr8500 Prevent Electrical Shock WARNING Ensure site electrical circuits have reliable earth grounding. Never operate products in any rack enclosure with the ground connector disconnected. Although leakage current from any one device may be minimal, cumulative leakage current of equipment mounted in a rack may exceed 5mA, and could reach 15mA. This level of current can be dangerous, unless a reliable earth ground is in place.
Chapter 1 Preparation for Cabling the HP NetServer LXr8500 Generic Rack Assembly Steps Suggested Method for Building an HP NetServer Rack Installation 1.
Chapter 1 Preparation for Cabling the HP NetServer LXr8500 3. Prepare Rack Enclosures for Assembly WARNING A tip-over hazard exists. Rack enclosures are shipped upright and are top-heavy. Never move enclosures without adequate equipment and assistance. Use caution to prevent rack from falling over and causing potential damage or injury. If you receive pre-configured units, follow assembly instructions from the supplying organization first, if you have them.
Chapter 1 Preparation for Cabling the HP NetServer LXr8500 WARNING When equipment is mounted on slidies, a tip-over hazard exists. Always take the precautions listed below: Extend or bolt on the anti-tip foot for each rack before mounting equipment on slides. Never extend more than one piece of equipment on slides at a time. Reduce weight by removing power supplies and hard disk drives from servers.
Chapter 1 NOTE Preparation for Cabling the HP NetServer LXr8500 Older HP Systems racks may require that enclosures to be tied together before any components are mounted inside them. To avoid problems, if older rack versions are to be tied together, do so before installing slide members, rails, shelves, units, or other hardware. Otherwise, you may have to remove components from the rack to gain access to the tie-bolt locations. 2.
Chapter 1 Preparation for Cabling the HP NetServer LXr8500 3. Install the Redundant Switch, if you have one, in one of the configurations shown in Appendix B. 9. Mount Component in the Rack Plan Component Locations Use the original ordering information to locate where each component goes in the rack. If the original ordering information is not available, use HP rack configuration tools to plan the location of each component.
Chapter 1 Preparation for Cabling the HP NetServer LXr8500 NOTE For both safety and accessibility, always start assembly at the bottom of the rack and work upward. 4. Be sure to locate and place rack nuts along the front outside face of the vertical column before placing each component on its rails or base. The pre-positioning of rack nuts allows the front of the component to be secured to the front of the rack.
Chapter 1 Preparation for Cabling the HP NetServer LXr8500 • Determine configurations for and mount the PDU (Power Distribution Unit or Units). Connect the LXr 8500 Data Cables to Peripheral Components • Plan where data connections are to be made. • Attach data cables to the server. Mark the ends of data cables with colored tie-wraps and labels supplied with each server. This simplifies attaching cables later in the procedure.
2 Rack Cabling References Rack Configuration Tools Selected reference material derived from HP’s rack configuration tools is published in this chapter for convenience including the following: • necessary and optional components • rack power subsystem configuration and placement • current and power requirements • discussion of component location in the rack • routing cables through the Cable Management Arm and Cable Guide • cooling requirements and air flow HP rack configuration tools are available on the w
Chapter 2 Rack Cabling References ◊ available in either 208 VAC or 230/240 VAC configurations for international markets ◊ Uninterruptible Power Supply (UPS) models rated at 3000 Watts are available for either voltage range; or a 2250 Watt UPS is available for 230/240 VAC (see Table 2-1) ◊ for both 208 and 230/240 voltages, two wide range Power Distribution Unit (PDU) models (rated 10 A and 16 A) are available (see Figure 2-1) ◊ one or more PDUs can be used in each rack enclosure, depending upon req
Chapter 2 Rack Cabling References Table 2-2. LXr 8500 Plugs and Receptacles Reference 208 VAC Mains 230/240V Mains included C19 to C20, 2.5 m included C19 to C20, 2.5 m E7742A, 90 inch (2.5 m), C13 to C14 E7742A, 90 inch (2.5 m), C13 to C14 PDU Model No.
Chapter 2 Rack Cabling References Power Distribution Units Two types of Power Distribution Units (PDU) are currently available for the LXr 8500, as follows: ◊ The wide-range 200/240 VAC PDU (HP product number E7671A) fits either horizontally between the columns of the rack or vertically along the outside edge of the vertical column. See Figure 2-2.This PDU is rated 16 amps and has six available C-13 receptacles and two C-19 receptacles.
Chapter 2 Rack Cabling References Table 2-3.
Chapter 2 Rack Cabling References The 200/240 VAC, wide-range Power Distribution Unit (PDU) can be mounted in several configurations with the LXr 8500. One of these configurations is shown in Figure 2-2. Others are listed and illustrated throughout Chapter 3. How to Position the PDU Count the receptacles needed for each unit in the rack, notice where the PDUs can be most conveniently located, and decide whether to orient the PDU vertically or horizontally.
Chapter 2 Rack Cabling References Guidelines for Powering the LXr in a Rack Wide Ranging PDU Configurations Use of four possible 200/240 VAC PDU configurations depends upon the power requirements of the devices in the rack. Table 2-4 shows how to determine how many PDUs are supplied with each rack configuration. In configurations that use a wide-ranging 10-amp PDU, it will always be plugged into a wide-ranging 16-amp PDU. Table 2-4.
Chapter 2 Rack Cabling References amp PDU may not provide sufficient receptacles. In this case, use the Y-cable to connect HP Rack Storage/8 or Rack Storage/12 units to the PDUs. (b) When required, a pair of Y-cables are supplied per pair of Rack Storage/8 or Rack Storage/12 units. That is, two Y-cables are supplied for two units.
Chapter 2 Rack Cabling References Table 2-6. 208 VAC Power and Current: Approximate Requirements of Rack Optimized Devices and Components Input Power (VA) Input Power (W) 208v IRMS (Amps) HP NetServer LXr 85004 1121 1077 5.6 HP NetServer LPr 640 285 3.2 HP NetServer LXr 80004 1121 1077 5.6 HP NetServer LH 4r 1130 1100 5.7 HP NetServer LH 3r 650 626 3.2 HP NetServer LXr Pro8 980 970 4.9 HP NetServer LXr Pro 450 446 2.3 HP Fibre Channel Hub D6976A 140 125 0.
Chapter 2 Rack Cabling References Table 2-7. 230/240 VAC Power and Current: Approximate Requirements of Rack Optimized Devices and Components Device (Notes 1, 2, 3) Input Input 230/240v Power Power IRMS (VA) (W) (Amps) HP NetServer LXr 85004 1121 1077 4.9 HP NetServer LPr 644 285 2.8 HP NetServer LXr 80004 1121 1077 4.9 HP NetServer LH 4r 1120 1100 4.9 HP NetServer LH 3r 650 626 2.7 HP NetServer LXr Pro8 980 970 4.3 HP NetServer LXr Pro 450 446 2.
Chapter 2 Rack Cabling References Data Cabling References and Guidelines A series of positioning rules is used in the HP rack configuration tools to help determine where each component is placed in multiple rack layouts. Key Cabling Guidelines Used in Developing a Rack Layout The following discussion is intended to support your understanding of how your rack order was arrived at. It also discusses how rack layouts affect the attachment and routing of cables.
Chapter 2 Rack Cabling References • Ensure the monitor cables and mouse cables are long enough to allow the NetServer to be extended at the same time the keyboard tray is pulled out. Use locally available extensions if necessary. • The mounting distances provided in rack configuration tools assume cables between the servers and connected devices provide for the Cable Management Arm (for the LXr 8500).
3 Procedure for Connecting and Routing Cables to the LXr 8500 Step 1: Prepare to Cable the HP NetServer LXr 8500 Assess How Components Will be Connected to the Server You may find the following steps to be helpful before you begin cabling: • Review the layout of the rack installation generated with Hewlett-Packard rack configuration tools, such as Rack Assistant. • Consider the cabling guidelines discussed in Chapter 2, in the section "Data Cabling References and Guidelines.
Chapter 3 Procedure for Connecting and Routing Cables to the LXr 8500 Mount Power Distribution Units Plan the location of the Power Distribution Unit or Units (PDU) by reference to amperage, power, and the number of receptacles.. See Chapter 2, the section entitled "Wide Range PDU Configurations," particularly Table 2-4. Follow mounting instructions included with your power distribution units. Notice these cannot be installed behind some equipment. See Table 2-3.
Chapter 3 HP NetServer Lxr 8500 Procedure for Connecting and Routing Cables to the LXr 8500 Rack Storage/12 Single Bus Configured Storage Dashed Lines Indicate Dual Bus Configured Storage Figure 3-1. Overview of Data Cabling of the HP NetServer LXr 8500 to an HP Rack Storage/12 NOTE Figure 3-1 shows an HP Console Switch, which is not necessary for configuring the system, but is shown for informational purposes.
Chapter 3 Procedure for Connecting and Routing Cables to the LXr 8500 HP 6-Port Hub with GBICs HP NetServer Lxr 8500 HP Rack Storage/12FC with GBICs HP Rack Storage 12 HP Rack Storage/8 Figure 3-2. Overview of Data Cabling of the HP NetServer LXr 8500 to the Rack Storage/12FC NOTE The configuration in Figure 3-2 requires 2 UPS (power supplies) and 2 PDU (power strip) units at both 208 V and at 230/240 V.
Chapter 3 Procedure for Connecting and Routing Cables to the LXr 8500 Figure 3-3. Connecting the Data Cables between the LXr 8500 and Rack Storage/12FC 2. Locate any network and remote management connections from hubs, routers and other sources and connect their cables to corresponding server connectors. 3. Locate the cable that will attach the serial port on the Uninterruptible Power Supply (UPS) (if present) and plug the server end in. 4. Attach the video cable to the video port on the server.
Chapter 3 Procedure for Connecting and Routing Cables to the LXr 8500 and monitor for more than one server, attach the cables for the HP Console Switch to the server ports of the video card and the mouse and monitor ports. Check Whether Cable Lengths Limit Distances between the Server and Storage Sometimes data cable length or availability limits the distance between a peripheral component (such as the UPS or video monitor) and its associated server.
Chapter 3 Procedure for Connecting and Routing Cables to the LXr 8500 loaded rack, see the section of this chapter entitled "Determining and Balancing Current Draw on Two Circuits in One Rack." 4. For the sake of easy access to the rear of each component, route the associated power cords within the same space (the same set of EIA Units) where the component is located.
Chapter 3 Procedure for Connecting and Routing Cables to the LXr 8500 Location of Receptacles for Jumper Cables for a Typical Rack Monitor HP Console Switch Note PDU Vertically Mounted with Receptacles Facing Inward DLT Library Mass Storage Unit (Two Inlets) HP NetServer LXr 8500 Mass Storage Unit (Two Inlets) Figure 3-4. Power Connection Locations on a Typical Rack (Rear View) 208V PDU Rack Power Configurations The 208 VAC PDU power configurations appear as shown below in Table 3-1 and Figure 3-5.
Chapter 3 Procedure for Connecting and Routing Cables to the LXr 8500 Alternate 208 VAC Power Configurations In the 208 VAC case, without a UPS, make sure your power system has the capacity to support the power and current needs of the components you will power. (See the section entitled “Site Preparation: Circuit Breakers.) If capacity is adequate, plug the PDU into a 208 V, L6-20 receptacle. Table 3-1.
Chapter 3 Procedure for Connecting and Routing Cables to the LXr 8500 Recommended 208 VAC Power Configuration for the LXr 8500 HP NetServer LXr 8500 Rack Mass Storage Unit Jumper Cable Supplied with NetServer Uninterruptible Power Supply Jumper Cables Supplied with Mass Storage Units Captive L6-20P Cord Cable Orderable for 16-Amp PDU, E7801A L6-20P to IEC 320 C19, 2.5 m (Other Configurations Possible) 16-Amp Power Distribution Unit, E7671A Figure 3-5.
Chapter 3 Procedure for Connecting and Routing Cables to the LXr 8500 230/240V PDU Rack Power Configurations Configurations for the 230/240 VAC, PDU options are shown in the text below, Table 3-2, and Figure 3-6. 230/240 VAC Power Configuration In a country with a 230/240 VAC power system, the wide range (200/240 V) PDU model E7671A is required.
Chapter 3 Procedure for Connecting and Routing Cables to the LXr 8500 Table 3-2. 230/240 VAC PDU Power and Current Component1 Model Power (VA) Power (W) Current (A)2 E7671A or E7672A N/A N/A max 16 HP NetServer LXr 85003 D7057A, 500 MHz, 512K Cache D7133A, 500 MHz, 1MB Cache D7058A, 500 MHz, 2MB Cache 1121 HP NetServer Mass Storage Unit Rack Storage/12 is D5989A Rack Storage/12FC is D5991A 547 538 2.3 J1497B 42 29 0.2 208 VAC PDU HP Console Switch 1077 4.
Chapter 3 Procedure for Connecting and Routing Cables to the LXr 8500 Recommended 230/240 VAC LXr 8500 Configuration HP NetServer LXr 8500 Mass Storage Unit Jumper Cable Supplied with NetServer Jumper Cables Supplied with Mass Storage Units Uninterruptible Power Supply Captive Unterminated Cord to be Terminated Locally Cable Orderable for 16-Amp PDU, E7798A, IEC 320 C19 to C20, 2.5 m (Other Configurations Possible) 16-Amp Power Distribution Unit E7671A Figure 3-6.
Chapter 3 Procedure for Connecting and Routing Cables to the LXr 8500 shows two LXr 8500 units powered by two PDUs and two UPS units. Plugging each UPS into a different branch circuit ensures dual power supply is maintained. Figure 3-7.
Chapter 3 Procedure for Connecting and Routing Cables to the LXr 8500 High Density Configuration High Density Configuration Example A high density configuration is illustrated in Figure 3-8. For this example, one 41EIA Unit Rack (a 2-meter HP Systems or HP System/E rack) is completely filled with power supplies, servers, and storage units. Two mass storage units “sandwich” each NetServer. Branch Circuit A Branch Circuit B Figure 3-8.
Chapter 3 Procedure for Connecting and Routing Cables to the LXr 8500 Step 4: Managing and Routing Cables Using the Cable Management Arm and the Cable Guides The HP NetServer LXr 8500 has a single power input cable, but multiple connections to I/O adapters in the PCI slots. Because power and data cables are supplied only in one length, measures are necessary to manage the cables attached to the rear of the server.
Chapter 3 Procedure for Connecting and Routing Cables to the LXr 8500 A. Begin with the Server all the way in B. Plug power and data cables into the back of the Server F. Drape cables through the fingers of the Cable Guide C. Gather cables at left and tie to Cable Management Arm flange E. Tie wrap cables into the inner and outer sections of the Arm D. Arrange cables through the inner section of the arm, around the elbow, and through the outer section Figure 3-9. Routing Cables through the Arm 2.
Chapter 3 Procedure for Connecting and Routing Cables to the LXr 8500 WARNING Before sliding the HP NetServer LXr 8500 out of the rack, make sure you extend the anti-tip foot from under the front of the rack. A tip-over hazard exists, so never slide more than one component out of the rack at a time. NOTE Do not remove the screws that hold the slides to the front columns of the rack. Slide the NetServer out by grasping the handle below the LCD control panel.
Chapter 3 Procedure for Connecting and Routing Cables to the LXr 8500 bind, adjust as necessary. Repeat until the Cable Management Arm extends and retracts smoothly. 8. Secure the server to the front of the rack with screws and rack nuts and replace the bezel. See the HP NetServer LXr 8500 Installation Guide for details. Step 5: Powering Up and Powering Down the Components in the Rack Follow the Power Up Sequence to minimize inrush currents and prevent breakers from tripping. Power Up Sequence 1.
A Cabling Checklist Checklist for Cabling Process Use the Site Preparation Checklist in Chapter 1 to make sure your site is ready. Read and follow all Rack Assembly and Cabling Warnings in Chapter 1 and in the Assembly Instructions that accompany your HP Rack. Assemble (new) or assess (existing) rack equipment. Check Wattage, Volt Amps, and Amperage to ensure you do not overload your branch circuits breakers or the rack power supply and distribution equipment.
B Considerations in Mounting the Redundant Switch Table B-1 shows the Redundant Switch in four possible configurations. The illustrations which follow the table show 208 VAC configuration wiring diagrams and illustrate the Redundant Switch mounted in the HP Rack Systems/E.
Appendix B Considerations in Mounting the Redundant Switch Table B -1. Components for Use with the Redundant Switch and the LXr 8500 Item North America: 208/240 VAC Mains International1: 230/240V Mains Application with UPS Application with No UPS Application with UPS Application with No UPS APC Redundant Switch Model No..
Appendix B Considerations in Mounting the Redundant Switch UPS Jumper Cord, L6-20P to C-19 Branch Circuit A Branch Circuit B Captive UPS Cord with L6-20P connects to L6-20R on Redundant Switch SKU 045-1 Switch Captive Cords, with L6-20P Cord Ends Figure B-1. 208 VAC Configuration of Redundant Switch between UPS and Branch Circuit PDU Jumper Cord, L6-20P to C-19 E7803A Branch Circuit A Branch Circuit B SKU 045-1 Switch Captive Cords, with L6-20P Cord Ends Figure B-2.
Appendix B Considerations in Mounting the Redundant Switch Note that switches of 230/240 VAC can be mounted in the same way as the 208 VAC models shown. See Table B-1. Figure B-3.
Index A air flow in the rack, 26 C Cable Guide ensure installed, 27 cable management ensure the the Cable Guide is in place, 27 mount the Cable Management Arm, 27 planning for, 25 power cords within occupied area, 33 power cords within same EIA unit, 33 Cable Management Arm ensure installed, 27 cable routing cabling guidelines for the LXr 8500, 28 guidelines for server and peripheral connections, 32 overview of guidelines, 25 overview of procedure, 12 cabling SCSI cables from LXr 8500 to Rack Storage/8, 28
Index 230/240 VAC illustration, 37, 39 configuration guidelines, 21 configurations for LXr 8500, 20 determining and balancing load on double PDUs, 33 models, illustration, 19 placement for the LXr 8500 rack, 18 position in the rack, 20 power down, 45 power off sequence, 45 power strip.
Index W wide ranging switchless power units, 21 55
