HP LH4r HP Netserver LPr Rack Cabling Guide
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- HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 1
HP NetServer LPr Rack Cabling Reference HP Part Number D6129-90005 Printed in October 1998 - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 2
-Packard shall not be liable for errors contained herein or for incidental or the use or reliability of its software on equipment that is not furnished guide is for the person who installs, administers, and troubleshoots LAN servers. Hewlett-Packard Company assumes you are qualified in the servicing - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 3
Preparation 12 Site Preparation Checklist 12 Site Preparation: Circuit Breakers 14 Cabling Preparation for the HP NetServer LPr 15 Assess How Components Will Be Connected to the Server 15 Attach Cable Guide to Rack Column 15 Mount Power Distribution Units 15 Attach Data Cables 26 Plan Data - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 4
Determining Rack Locations 53 Key Cabling Guidelines Used in Developing a Rack Layout 53 Placement Considerations Due to Data Cable Lengths 54 Cooling Requirements for the HP NetServer LPr 55 A Specifications 57 Weight and Dimensions 57 Power ...57 Thermal 57 Index ...59 iv - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 5
other components. • You are ready to cable the components in the rack. For instructions on how to install the HP NetServer LPr in a rack, see Chapter 9 in the HP NetServer LPr Installation Guide. NOTE For instructions on how to assemble other components of a network system in a rack, please find - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 6
an HP NetServer Rack Suggested Method for Building an HP NetServer Rack Installation 1. Check Site Preparation Use the Site Preparation Checklist in Chapter 2 of this reference to be sure that all necessary preparations have been completed, including: • Customer network and software responsibility - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 7
HP NetServer instructions. Move Rack Enclosures and Other Units to Installation Location WARNING Whenever you lift equipment, limit the amount of weight each person picks up. Lift with your legs, not with your back. Use two or more people and the proper equipment to move the rack enclosure, server - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 8
on slides at a time. Reduce weight by removing power supplies and hard disk modules from servers. Always use the rack mounting handles that are shipped on rack optimized units as shown in the accompanying instructions. 4. Remove any shipping panels from inside the rack enclosure. Save panels - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 9
). Each package contains rack installation instructions or a user guide. NOTE If an Uninterruptible Power Supply HP Rack System product numbers J1487B, J1487B option AXH, and J1488A require that enclosures be attached, or tied together, before any components are placed in them. To avoid problems - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 10
the rear of the rack. 3. If present, remove side panels to allow better access. Follow instructions shipped with the rack to do so. Install Fans if Required and UPS First If You Have ordering information is not available, use HP rack configuration tools to plan the location of each component. 6 - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 11
web site, to regenerate it. 2. Rack-optimized HP NetServer and mass storage unit have instructions in their user guides for mounting the units in the rack enclosure. For other servers and storage units, rack mounting instructions are included with optional rack-mount kits, if available. See the user - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 12
panels. 7. Connect and Route Cables NOTE Illustrated information about cabling the HP NetServer LPr in the rack is available in Chapter 2 of this reference be connected to each server. • Attach Cable Guides to the rack column. See instructions included with Cable Guides. • Mount Power Distribution - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 13
, Install Doors and Side Panels At this point, refer to the HP NetServer LPr Installation Guide and configure the system. Install front and rear doors as required, and mount side panels. Detailed instructions and illustrations are included with the rack enclosure and components. General Cabling - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 14
shock by disconnecting power and telephone cords when you service or install components. Prevent Damage to Components CAUTION Rack wrist-strap and use a static-dissipating work surface connected to the server chassis when handling printed circuit boards, memory devices, and processor chips or - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 15
: • do site preparation • prepare for cabling data and power • attach data cables • attach power cables • route cables • power on the equipment in the rack The HP NetServer LPr The HP NetServer LPr offers mid-range server capabilities in an enclosure only two EIA units (2 U) high. 11 - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 16
Checklist HP NetServer Customer Responsibilities Logical and physical network design provided Server configuration parameters determined Disk partition and directory structure determined Required incoming power and data cabling in place Working LAN, one working client, one working printer available - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 17
HP NetServer LPr Floor Ensure the floor where the NetServer rack is to be installed is level. Assess floor strength and ensure it is sufficient to support Environmental and Space Requirements Must meet OSHA and HP specifications for safety and supportability (3 feet minimum access in front and rear - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 18
, and so on Valid, supportable configuration for added devices, interfaces, memory, and so forth Correct type and length of cables, as specified in order documents Site Preparation: Circuit Breakers When you connect the HP NetServer LPr to an AC power source, the server temporarily draws a large - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 19
service. Consult a qualified electrician or local regulatory authority before beginning electrical site preparation. Cabling Preparation for the HP NetServer LPr Assess How Components Will Be Connected to the Server You may find the following steps to be helpful before you begin cabling: • Review - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 20
Chapter 2 Connecting and Routing Cables to the HP NetServer LPr Three Types of Power Distribution Unit The three types of Power Distribution Units (PDUs) currently supplied are shown in Figure 2-2: ◊ The 100/120 VAC PDU (HP product number E7675A) is designed to fit horizontally between the columns - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 21
Chapter 2 Connecting and Routing Cables to the HP NetServer LPr 10-Amp and 16-Amp, with Jumper Cord Available as E7672A Daisy Chain to 16-Amp PDU 10-Amp Wide Ranging, 208/230 VAC - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 22
HP NetServer LXr Pro8 Neither horizontal nor Cannot extend NetServer vertical mounting possible satellite for servicing HP NetServer LH 3 Horizontal mounting not recommended at bottom of LH , each PDU will support fewer LPr servers than it has receptacles. Decide whether to orient the - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 23
Chapter 2 Connecting and Routing Cables to the HP NetServer LPr Figure 2-3 shows an LPr rack installation with PDUs mounted of four PDUs in a rack of 20 LPr servers 208-240 VAC wide-ranging 16-amp PDU mounted horizontally on rear columns Two Cable Guides mounted on the rear column on same side - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 24
Routing Cables to the HP NetServer LPr Mounting the PDU Horizontally NOTE For additional information, see the instruction sheet that came with 2-2, If you locate the PDU behind the HP NetServer LXr 8000, HP Rack Storage/8, or HP NetServer LH 3r, then the hot-swappable power supplies designed - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 25
Unit Horizontal Mounting Detail Connecting and Routing Cables to the HP NetServer LPr Locate EIA unit and decide which mounting holes to to secure the unit to the rack columns. See Figure 2-4. NOTE With the new HP Rack System/E, you may use threaded inserts on the outside face of the rear columns - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 26
the HP NetServer LPr Mounting NOTE The brackets serve to dampen vibration of the server chassis. 1. Use a T25 driver to tighten down a screw and nut with lock down hard to make earth ground contact. See circled number 3 in Figure 2-5. NOTE For additional information, see the instruction sheet - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 27
Chapter 2 2 Connecting and Routing Cables to the HP NetServer LPr Rear Column 1 Rail 1 Foot Rear Bracket-PDU 3 1 2 3 1 2 3 3 Figure 2-5. LPr Rear Bracket for PDU Support 23 - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 28
Routing Cables to the HP NetServer LPr Mounting the PDU Vertically NOTE For additional information, see the instruction sheet that came with interferes with power cords when extended from the rear of the rack for service. NOTE When mounted vertically, the PDU mounting holes line up with holes - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 29
Chapter 2 Connecting and Routing Cables to the HP NetServer LPr Installation Steps To mount a PDU vertically, follow these steps: 1. Locate the PDU on the side of the rack opposite the cable guide(s). Avoid the door latch near the center of the rack. The receptacles of the PDU should face inward, - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 30
of Data Cabling the LPr Figure 2-7, "Overview of Data Cabling of the HP NetServer LPr" shows a typical set up you might do before running HP NetServer Navigator to configure your server. See the HP NetServer LPr Installation Guide for more information on setting up the system. CAUTION Cables with - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 31
LPr Rack Storage/8 Configured Single Bus Figure 2-7. Overview of Data Cabling of the HP NetServer LPr NOTE Figure 2-7 shows an optional HP Console Switch for informational purposes. Attach Data Cables to the Server 1. Locate SCSI connections, label both ends of the SCSI cables, and connect one - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 32
2 Connecting and Routing Cables to the HP NetServer LPr NOTE Be sure SCSI channels are up a stacked console switch configuration as shown below. Figure 2-8. Stacked Console Switches To access servers connected to slave console switches, simply press [Print Screen] followed by the master port - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 33
Chapter 2 Connecting and Routing Cables to the HP NetServer LPr Refer to the user's guide that came for your console switch for additional information. Figure 2-9 shows a rack configuration where two stacked console switches connect fourteen LPr servers to a monitor, keyboard, and mouse. 14 LPr - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 34
HP NetServer LPr Attach Power Cables When all components have been mounted in the rack and their data cables connected, the Power Distribution Units (PDU) can be positioned and the power cables can be attached. Attaching Server in the server. ◊ Route the cables through the Cable Guide. ◊ Form - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 35
Chapter 2 Connecting and Routing Cables to the HP NetServer LPr Determining and Balancing Current Draw on Multiple Circuits in One Rack If you use more than one circuits or power line (each including a Power - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 36
and Routing Cables to the HP NetServer LPr Locations of Receptacles for Jumper Cables for a Typical Rack LPr NetServer (1) Monitor (1) 2 HP Console Switches (1 Power Receptacle for each) 2 LPr NetServers (1 Power Receptacle for each) 11 LPr NetServers (1 Power Receptacle for each) Figure - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 37
Unit (PDU) components are available to support these configurations. Power considerations for the HP NetServer LPr include: ◊ Appropriately rated UPS models and number of receptacles. ◊ The appropriate power cord for each server is shipped according to local requirements; refer to Table 3-1 for - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 38
titled "Site Preparation: Circuit Breakers" earlier in this chapter. If your electrical system has the capacity to power the components, plug the HP NetServer LPr, LH 3r, Pro and Rack Storage/8 units into NEMA 5-15 receptacles using the 90 inch (approximately 230 cm) power cords supplied. Table - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 39
Chapter 2 Mass Storage Unit Connecting and Routing Cables to the HP NetServer LPr Recommended 100/120 VAC Power Configuration for the LPr HP NetServer LPr Jumper Cables NEMA 5-15P to IEC 320 C-14 Uninterruptible Power Supply NEMA 5-20P Detachable Cord NEMA 5-20P to IEC 320 C-20 120 VAC, 16- - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 40
, 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 16 HP NetServer LPr All models 305 2.2 HP NetServer Rack Storage/8 D4902A 209 1.1 HP NetServer - 537 2.6 Rack Storage/12 HP Console Switch - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 41
Chapter 2 Connecting and Routing Cables to the HP NetServer LPr Description of the Recommended 200/208 VAC Configuration Figure 2-12 shows a UPS connected to the power mains through a captive cord terminated with an L6- - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 42
Chapter 2 Uninterruptible Power Supply Connecting and Routing Cables to the HP NetServer LPr Recommended 200/208 VAC Power Configuration for the LPr HP NetServer LPr Mass Storage Unit Jumper Cables, E7742A, with C-14 ends Captive L6-20P Cord Cable Ordered for 16-Amp PDU, E7801A L6-20P to IEC - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 43
Chapter 2 Connecting and Routing Cables to the HP NetServer LPr 230/240V PDU Rack Power Configurations Configurations for the 230/240 VAC, PDU options are shown in the text below, Table 2-5 and Figure 2-13. - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 44
16 HP NetServer LPr All models 305 2.8 HP NetServer Rack Storage/8 D4902A 209 0.9 HP NetServer Rack Storage/12 - 537 2.3 HP Console mains through an attached power cord (appropriate cords are supplied for each server automatically). The UPS has eight IEC 320 receptacles for use with the - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 45
Chapter 2 Uninterruptible Power Supply Connecting and Routing Cables to the HP NetServer LPr Recommended 230/240 VAC LPr Configuration HP NetServer LPr Mass Storage Unit Jumper Cables E7742A, with C-14 to C-14 Ends Detachable Cord with (for example) CEE7/7 Plug, (other configurations 16-Amp Power - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 46
the HP NetServer LPr High Density Configurations This section presents two examples of a rack configured with 20 LPr servers. One shows power distribution for 120 VAC and the other for 208 VAC. 120 VAC High Density Example As shown in Figure 2-14, one PDU (E7675A) can support three LPr servers at - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 47
Chapter 2 Connecting and Routing Cables to the HP NetServer LPr NOTE Figure 2-15. 120VAC High Density Example Choosing a high-voltage level will reduce the number of PDUs as shown in the following section. 43 - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 48
Chapter 2 Connecting and Routing Cables to the HP NetServer LPr 208 VAC High Density Example As shown in Figure 2-16, one PDU (E7671A) is required to support five LPr servers at 208 VAC. Figure 2-16. PDU Utilization at 208VAC 44 - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 49
Chapter 2 Connecting and Routing Cables to the HP NetServer LPr Figure 2-17 shows four PDUs arranged to deliver 120VAC to a rack of 20 LPr servers. Figure 2-17. 208VAC High Density Example 45 - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 50
to the HP NetServer LPr Power error. 6. Lastly, power on one server at a time, waiting for fan units to spin up before powering on the next (if more than one is present in the rack). Power Down Considerations To power off the equipment, ensure that the network has been properly warned. No specific - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 51
Information Power Cords and Component Reference Table 3-1 gives details of the plugs and receptacles for three different power alternatives for use with the HP NetServer LPr. Table 3-1. LPr Plugs and Receptacles Reference Item LPr, RS/8 Line Cord LPr, RS/8 PDU Jumper Cord Model No. PDU Model No - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 52
Chapter 3 Cabling Reference Information Note 1. For 100 VAC systems, separately orderable cables and UPS are available. Note 2. Consult American Power Corporation (APC) for model number of 100 VAC unit. Note 3. For 100 VAC, order a PDU power cord with appropriate connector. Wide-Ranging PDU - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 53
Chapter 3 Cabling Reference Information Table 3-3. Receptacles Needed for Different Units Component Receptacles Required HP NetServer LPr one C13, NEMA 5-15R HP NetServer LH 3r one or two C13 HP NetServer Pro8 one C19 HP Rack Storage/8 All other devices two C13 or use Y-Cable* one C13 * Two - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 54
Notes 1, 2, 3) HP NetServer LPr HP NetServer LXr 8000 Input Input Power Power (W) (VA) 100v IRMS (Amps) 530 305 5.3 - - Not Supported HP NetServer LH 4r HP NetServer LH 3r HP NetServer LXr Pro8 1170 650 - 1140 11.7 626 6.3 - Not Supported HP NetServer LXr Pro 450 446 4.5 HP Rack - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 55
Components Device (Notes 1, 2, 3) HP NetServer LPr HP NetServer LXr 8000 Input Input Power Power (W) (VA) 120v IRMS (Amps) 552 295 4.6 - - Not Supported HP NetServer LH 4r HP NetServer LH 3r HP NetServer LXr Pro8 1160 650 - 1130 9.7 626 5.3 - Not Supported HP NetServer LXr Pro 450 - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 56
Current Requirements of Rack Optimized Devices and Components Device (Notes 1, 2, 3) HP NetServer LPr HP NetServer LXr 8000 HP NetServer LH 4r HP NetServer LH 3r HP NetServer LXr Pro8 HP NetServer LXr Pro HP Rack Storage/12 HP Rack Storage/8 Monitor (14-inch.) Monitor (15-21-inch.) DLT Library - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 57
3) HP NetServer LPr HP NetServer LXr 8000 HP NetServer LH 4r HP NetServer LH 3r HP NetServer LXr Pro8 HP NetServer LXr Pro HP Rack Storage/12 HP Rack Storage Used in Developing a Rack Layout The following discussion is intended to support your understanding of how your rack order was arrived at. It - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 58
provision for a "cable management loop" so that the HP NetServer can be extended for service by trained personnel • cables are neat, and routed the rack after being connected with the server. And this in turn depends on Cable Guide placement. • Cable Guide placement is determined in turn by where - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 59
cooling. Air flow in the rack enters units through front panels and leaves through the rear. Because of the high capacity fans installed on the HP NetServer LPr, HewlettPackard does not recommend an exhaust fan be installed with this unit, as long as the rack has both front and rear doors that - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 60
- HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 61
Appendix A Specifications Weight and Dimensions Weight approx. 40 lbs Width 17.6 inches Depth 28 inches Height 3.5 inches Power Supply Type Input - Nominal Input - Max. Range Operating Current - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 62
- HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 63
230/240 VAC table of devices, 53 G grounding the rack enclosure, 21, 26 H HP Console Switch use with LPr, 26 HP NetServer LPr cords, plugs, and receptacles, 47 voltages, 33 HP Rack Assistant, 53 I illustration HP NetServer LPr, 11 O overview cabling the assembled rack, 8 data cabling, 26 P PDU. See - HP LH4r | HP Netserver LPr Rack Cabling Guide - Page 64
Index configuration guidelines, 48 determining and balancing load on double PDUs, 31 how to mount the PDU, 15 mounting limitations, 20 mounting the model vertically, 24 mounting the unit horizontally, 20 placement for the LPr rack, 17 power off sequence, 46 power strip. See Power Distribution Unit
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HP NetServer LPr
Rack Cabling Reference
HP Part Number D6129-90005
Printed in October 1998