HP LH3000r HP Netserver LXr 8000 Rack Cabling Guide
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- HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 1
Rack Cabling Reference for the HP NetServer LXr 8000 HP Part Number D6021-90005 Printed in October 1998 - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 2
Santa Clara, CA 95104 USA © Copyright 1998, Hewlett-Packard Company. Audience Assumptions The guide is for the person who installs, administers, and troubleshoots LAN servers. Hewlett-Packard Company assumes you are qualified in the servicing of computer equipment and trained in recognizing hazards - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 3
Cables 25 Attaching Server and Component Power Cables 25 Determining and Balancing Current Draw on Two Circuits in One Rack... 26 Power Considerations for the HP NetServer LXr 8000 28 208V PDU Rack Power Configurations 28 230/240V PDU Rack Power Configurations 31 Dual Power Supply and High - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 4
Configurations 42 Power and Current for Estimating Supply Needs 44 Data Cabling Principles Used in Determining Rack Locations 44 Key Cabling Guidelines Used in Developing a Rack Layout 44 Placement Considerations Due to Data Cable Lengths 45 Cooling Requirements for the HP NetServer LXr 8000 - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 5
chapter. Purpose of This Document This reference provides information for cabling the HP NetServer LXr 8000, including power consumption and current requirements. It is written for rack installers who have installed the HP NetServer LXr 8000 in a rack and need information about how to connect data - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 6
units without help. Also, remove power supplies and hard disk drives to minimize the amount of weight to be lifted. Compare the order documents to the packing list or to a list of boxes received. Check to see that all parts are present. Unpack the HP NetServer and external storage and tape backup - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 7
assembly instructions from the supplying organization first, if you have them. Otherwise, continue with this set of instructions. Move move the rack enclosure, server, mass storage units, and other components. Stage cartons a few feet from your assembly and final power-up location. Unpack Rack - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 8
on slides at time. Reduce weight by removing power supplies and hard disk packs from servers. Always use the rack mounting handles that are the rack upward). Each package contains rack installation instructions or a user guide. NOTE If an Uninterruptible Power Supply (UPS) is included, plug it in - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 9
is to be used, install it following instructions which accompany the unit. NOTE If your server has an internal fan system, your rack doors must be perforated (front and/or rear). In this case, you do not need an extractor fan. 2. If an Uninterruptible Power Supply (UPS) is used, install the UPS - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 10
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 LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 11
Servers are heavy and may be awkward to position on their mounting rails. Therefore, always minimize the weight to be mounted into the rack by removing power supplies and hard the HP NetServer server. • Attach Cable Guides to the rack column. See instructions included with Cable Guides. • Mount Power - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 12
power up sequence. See "Power Up Sequence" in Chapter 2. 7. Configure the System, Install Doors and Side Panels At this point, refer to the NetServer user or installation manual and configure the system. Install front and rear doors as required, and mount side panels. Look for detailed instructions - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 13
WARNING Prevent shock hazard by disconnecting power and telephone cords when you service or install components. Prevent Damage to use a static-dissipating work surface connected to the server chassis when handling printed circuit boards, memory devices, and processor chips or modules. Ensure that - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 14
- HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 15
Routing Cables to the HP NetServer LXr 8000 Introduction Overview of Cabling Steps This chapter includes information on cabling the server and other components in a rack, including: • site preparation • cabling preparation for data and power • attach data cables • attach power cables • cable routing - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 16
HP NetServer LXr 8000 Figure 2-1. The Rack Optimized HP NetServer LXr 8000 Site Preparation You may want to copy and use the site preparation checklist in this section with a representative of the organization installing the rack. Doing so before you begin may reveal actions you can take to support - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 17
Preparation Checklist Table 2-1. Site Preparation 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 - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 18
HP NetServer LXr 8000 Table 2-1. Site Preparation Checklist (Continued) Environment and Space Requirements Must meet OSHA, local code, and HP specifications for safety and supportability slots, memory slots, and so on Valid, supportable configuration for added devices, interfaces, memory, and so - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 19
than the server's normal operating needs. Generally, your external AC power source can handle the inrush current. If you install several HP NetServers on one each 16-amp Power Distribution Unit. NOTE Some local codes do not allow a 16-amp device to be connected to a 16-amp service. Consult a - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 20
the HP NetServer LXr 8000 Cabling Preparation for the HP NetServer LXr 8000 Assess How Components Will Be Connected to the Server You Guide to Rack Column Using the instructions included, attach the two Cable Guides to the rack column. Mount Power Distribution Units Plan the location of the Power - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 21
HP NetServer LXr 8000 HP NetServer LXr Pro8 HP NetServer LH 3r HP FiberChannel 30 HP NetServer Rack Storage/8 Horizontal Mounting Not Interferes with Hot- Recommended Swappable Power Supplies Neither Horizontal Nor Cannot Extend NetServer Vertical Mounting Possible Satellite for Servicing - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 22
Chapter 2 Connecting and Routing Cables to the HP NetServer LXr 8000 Figure 2-2. Three PDU Configurations The 208-240 VAC, wide-voltage-range-rated, switchless version of the Power Distribution Unit (PDU) can be mounted in several configurations with the LXr 8000. One of these configurations is - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 23
Chapter 2 Connecting and Routing Cables to the HP NetServer LXr 8000 Figure 2-3. Mounting a Pair of PDUs Horizontally (Rear View) Once you have determined the general location and orientation, install the PDUs for the rack as described below: 19 - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 24
hot-swappable power supplies designed for access and replacement from the rear of the rack will not be easily accessible. If you locate the PDU behind the HP NetServer LXr Pro8 or the HP FiberChannel 30, there will be mechanical conflicts when units are extended out the rear of the rack for service - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 25
to the HP NetServer LXr 8000 steps: 1. Locate the PDU on the side of the rack opposite the cable guide. Avoid the door latch near the center of the rack. The receptacles of by the rack side panels when the rack is fully assembled.) The power cord input (and the two "reset" buttons) will be on the - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 26
Chapter 2 Connecting and Routing Cables to the HP NetServer LXr 8000 Figure 2-5. Mounting the PDU Vertically 2. Use the row of mounting holes nearest the outside edge of the vertical column. Use the hex nut and screw supplied with the PDU. Hold the nut behind the column and insert the screw - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 27
8000 Data Cabling Figure 2-6, "Overview of Data Cabling of the HP NetServer LXr 8000" shows a typical set-up you might do before running HP NetServer Navigator to configure your server. See the HP NetServer LXr 8000 Installation Guide for more information on setting up the system. CAUTION Cables - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 28
LXr 8000 Figure 2-6. Overview of Data Cabling of the HP NetServer LXr 8000 NOTE Figure 2-6 shows an HP Console Switch, which is not necessary for configuring the system, but is shown for informational purposes. Attach Data Cables to the Server 1. Locate SCSI connections, label both ends of the - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 29
2 Connecting and Routing Cables to the HP NetServer LXr 8000 SCSI Cable Lengths and Distances between the Server and Storage SCSI cables (2.5 meter, 56-inch, and not extendible) limit the distance between a storage unit and its associated server. Guidelines used by rack configuration tools in - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 30
Cables to the HP NetServer LXr 8000 4. For the sake of easy access to the rear of each component, route the associated power cords within the use two circuits (each including a Power Distribution Unit and an optional Uninterruptible Power Supply) in one rack. Attempt to support higher loads. 26 - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 31
Chapter 2 Connecting and Routing Cables to the HP NetServer LXr 8000 Figure 2-7. Power Connection Locations on a Typical Rack (Rear View) 27 - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 32
VAC. Power supply (UPS) and distribution (PDU) components are available to support these configurations. Power considerations for the HP NetServer LXr depending upon requirements for power, current, and number of receptacles ◊ the appropriate power cord for each server is shipped according to local - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 33
HP NetServer LXr 8000 Table 2-3. 200/208 VAC Components Component (Note 1) Model Power (VA) Power (W) Current (A) Note 2 208 VAC PDU E7671A or E7672A N/A N/A maximu m 16 HP NetServer unit, providing ten more C-13 receptacles. The fan (not required if perforated doors--or no doors--are - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 34
Chapter 2 Connecting and Routing Cables to the HP NetServer LXr 8000 Figure 2-8. 208 VAC PDU Configuration 30 - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 35
code requirements when connecting to the site electrical power supply. Table 2-4. 230/240 VAC PDU Power and Current Component (Note 1) Model Power (VA) Power (W) Current (A) Note 2 230/240 VAC PDU E7671A N/A N/A maximum 16 HP NetServer LXr D6021A (single 400 MHz 1,121 1,077 4.9 8000 - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 36
HP NetServer LXr 8000 Description of the Recommended 230/240 VAC Configuration Figure 2-9 shows a UPS connected to the power mains through an attached power cord (appropriate cords are supplied cords. The fan assembly plugs in using one of the C-13 receptacles. (No fan assembly is required when perforated - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 37
Chapter 2 Connecting and Routing Cables to the HP NetServer LXr 8000 Figure 2-9. 230/240 VAC PDU Configuration 33 - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 38
dual power supply is maintained. A high density configuration is illustrated in Figure 2-11. For this example, one 41-EIA 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. 34 - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 39
Chapter 2 Connecting and Routing Cables to the HP NetServer LXr 8000 Figure 2-10. Dual Power Configuration Example 35 - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 40
Chapter 2 Connecting and Routing Cables to the HP NetServer LXr 8000 Figure 2-11. High Density Configuration Block Diagram 36 - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 41
Loop In a fully utilized HP NetServer LXr 8000, you can form a cable management loop by connecting cables with the server fully extended from the rack. loop allows the server to be extended by service personnel (without disconnecting data cables) for upgrades and maintenance. With the server in the - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 42
2 Connecting and Routing Cables to the HP NetServer LXr 8000 Figure 2-12. Forming the LXr 8000 Cable Management Loop Power Up the Components in the Rack Follow the Power Up Sequence to minimize initial surge currents and prevent breakers from tripping. Power Up Sequence 1. Ensure that the mass - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 43
Routing Cables to the HP NetServer LXr 8000 5. If an HP Console Switch is present, it must be on before the server is turned on. Otherwise, the server will not detect all the required components and will likely report an error. 6. Lastly, power on one server at a time, waiting for fan units to spin - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 44
- HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 45
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 LXr 8000. Table 3-1. LXr 8000 Plugs and Receptacles Reference LXr 8000 Jumper Cord Model No. RS/8 PDU Jumper Cord Model No. PDU Model No. Can - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 46
-amp PDU can be ordered as an accessory using part number E7670A. Your wide ranging PDU configuration is determined using this table and by application of the following guidelines: 1. One 16-amp PDU is supplied for each Uninterruptible Power Supply (UPS) in a rack. 2. The total number of each kind - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 47
for Different Units Component HP NetServer LXr 8000 HP NetServer Pro8 HP Rack Storage/8 All other devices Receptacles Required one C19 one C19 two C13 or use Y-Cable* one C13 * Two Y-Cables may be used to connect two HP Rack Storage/8 units to two C13 receptacles. 3. The total power drawn by all - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 48
Power and Current for Estimating Supply Needs Table 3-4. Approximate Current Requirements of Rack Optimized Devices and Components Device (Notes 1, 2, 3) HP NetServer LXr 8000 HP NetServer LH 3r HP NetServer LXr Pro8 HP NetServer LXr Pro HP discussion is intended to support your understanding of - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 49
the HP NetServer can be extended for service by trained personnel • cables are neat, and routed in a workable manner in cases where supplied cables are not long enough for a cable management loop (which may include those supplied with the video monitor and the UPS) • power supplies and distribution - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 50
in the rack enters units through front panels and leaves through the rear. Because of the high capacity fans installed on the HP NetServer LXr 8000, Hewlett-Packard does not recommend an exhaust fan be installed with this unit, as long as the rack has both front and rear doors that are perforated - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 51
to components, 25 attach to server, 24 overview, 23 E earth ground for rack, 21, 22 electrical current requirements table of devices, 44 F fan not required for perforated doors, 5 G grounding the rack enclosure, 21, 22 H HP Console Switch use with LXr 8000, 23 HP NetServer LXr 8000 cords, plugs, and - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 52
unit at a time, 4 leveler feet, 3 lifting precautions, 3 moving racks safely, 3 preventing component damage, 9 rack cabling, 8 rear latch removal, 5 remove power supplies and disk packs, 4 use attached rack mounting handles, 4 SCSI cables illustration of LXr 8000 connections, 24 shipment to a second - HP LH3000r | HP Netserver LXr 8000 Rack Cabling Guide - Page 53
, 5 plug in early to charge batteries, 4 unpacking components, 4 rack enclosure, 3 UPS. See Uninteruptible Power Supply. See Uninterruptible Power Supply Index UPS or uninterruptible power supply unterminated power cord for, 8 V voltage options plugs and receptacles, 41 W wide ranging switchless
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Rack Cabling Reference
for the HP NetServer LXr 8000
HP Part Number D6021-90005
Printed in October 1998