HP Cluster Platform Hardware Kits v2010 Manuale utente

HP BladeSystem c-Class Enclosure Cable

Management Bracket Installation Guide

HP Part Number: 436670-doc

Published: September 2008

The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express

warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP

shall not be liable for technical or editorial errors or omissions contained herein.

InfiniBand™ is a trademark of the InfiniBand® Trade Association.

Printed in the U.S.A.

Table of Contents

1 Preparing for Installation................................................................................................7

1.1 Audience...........................................................................................................................................7

1.2 Documentation Resources.................................................................................................................7

1.3 Kit Description..................................................................................................................................7

1.4 Kit Contents.......................................................................................................................................7

1.5 Required Resources...........................................................................................................................8

1.6 Prerequisites......................................................................................................................................9

2 Aligning the Bracket.....................................................................................................11

3 Installing the Cable Management Bracket................................................................13

3.1 Installing the Cable Management Bracket......................................................................................13

3.2 Installing the Releasable Cable Ties for the InfiniBand Cables.......................................................13

4 Removing InfiniBand Cables and Switches...............................................................17

4.1 Removing a Damaged Cable From the c-Class Cable Management Bracket.................................17

4.2 InfiniBand Switch Removal.............................................................................................................17

Table of Contents 3

List of Figures

1-1 Bracket Hardware...........................................................................................................................8

2-1 Bracket Orientation.......................................................................................................................11

2-2 Bracket Mounting Locations.........................................................................................................12

3-1 A Cable Management Bracket Holding 16 InfiniBand Uplink Cables..........................................14

3-2 A Cable Management Bracket Holding 8 InfiniBand Uplink Cables...........................................15

3-3 InfiniBand Cable Secured with a Releasable Cable Tie.................................................................16

3-4 Gauging the Tightness of the Releasable Cable Tie Loop.............................................................16

4-1 Cable Tie Release Tab....................................................................................................................17

4 List of Figures

List of Tables

1-1 Fasteners (Supplied with Cabinet Mounting Hardware)...............................................................8

2-1 Bracket Mount Locations...............................................................................................................12

1 Preparing for Installation

1.1 Audience

This guide is intended for HP service representatives and other persons trained to install hardware

options in HP 10000 series racks. Such persons are expected to understand the hazards of working

in this environment and to take suitable precautions to minimize danger to themselves and

others.

1.2 Documentation Resources

You can download the documentation for components referenced in this installation guide from

the following locations:

• HP 10000 Series Rack (Documentation option):

http://h18004.www1.hp.com/products/servers/proliantstorage/racks

• HP Cluster Platform:

http://docs.hp.com/en/highperfcomp.html

1.3 Kit Description

The c-Class enclosure cable management bracket described in this manual is designed to align

and support the InfiniBand cables that lead from HP BladeSystem c-Class InfiniBand switches.

For example, the InfiniBand cables that run from an HP BLc 4X DDR InfiniBand switch mounted

in the rear of the HP BladeSystem c-Class enclosure to another switch, or a similar interconnect

device. The kit provides strain relief for the cables connected to the individual InfiniBand

interconnect ports and ensures a good connection. It also ensures the correct bend radius for the

cable and provides channels for cable routing and cable management. One HP BladeSystem

c-Class enclosure cable management bracket is required for each bay of system interconnect

device.

NOTE: The c-Class server blade enclosure cable management bracket is designed to support

24 AWG (0.41 inch) diameter, 26 AWG (0.37 inch) diameter, and 28 AWG (0.33 inch) diameter

QSFP InfiniBand cables. Consult the documentation supplied with your cluster before installing

the brackets and routing the cables.

1.4 Kit Contents

Verify that the cable management bracket kit contains the following components:

• Packaging and documentation.

• The bracket hardware shown in Figure 1-1.

1.1 Audience 7

Figure 1-1 Bracket Hardware

The following list describes the callouts in Figure 1-1:

1. HP BladeSystem c-Class Enclosure Cable Management Bracket

2. Completed releasable cable tie assembly

3. First hole (port 1) of the inside row of holes used for the InfiniBand switch with 16

external uplink ports (489183-B21)

4. Push-button mount

5. Rail-mount hook (one on each end of the bracket)

6. Mounting hole to fasten the bracket to the rack's rear rail (one on each end of the bracket)

7. Outside row of holes used for the InfiniBand switch with 8 external uplink ports

(410398-B21)

• The fasteners that are specified in Table 1-1.

Table 1-1 Fasteners (Supplied with Cabinet Mounting Hardware)

DescriptionTorqueFormatSizeQty.

Cage nut for M6 screw.N/ASquare nutM6 cage nuts2

Machine screw. For use with M6 cage nut.25-30 in/lb#2 Cross recessM6 x 0.625 inch

pan head screws

To prevent screws from becoming loose because of vibration, HP recommends that you use

an adjustable torque drive, set to the torque specifications given in the table above. Contact

your HP sales representative if any parts are missing.

• 16 push-button mounts (see callout 4 in Figure 1-1)

• 16 releasable cable ties (see callout 2 in Figure 1-1)

Note:

This cable management bracket might also be adaptable for other cable management solutions

(consult your hardware installation documentation).

1.5 Required Resources

To install the HP c-Class enclosure cable management bracket, you require the following resources:

8 Preparing for Installation

• Tools:

— Screwdriver, #2 (medium) Phillips.

— Cage-nut insertion tool (shipped with the rack) or a flat-headed screwdriver.

— Marker pen or masking tape.

• Resources: Cables of the type used by the HP BladeSystem c-Class InfiniBand switch.

1.6 Prerequisites

Before you begin to mount the bracket:

•Follow the usual cable-handling precautions for InfiniBand cables, see the HP Cluster Platform

InfiniBand Interconnect Installation and User's Guide.

•Ensure you know how to plug in the InfiniBand cables, as described in the HP Cluster Platform

InfiniBand Interconnect Installation and User's Guide.

• Read the rack installation instructions for the c-Class enclosure.

• Obtain the set of cabling tables required for your HP Cluster Platform solution.

Important:

Do not secure the enclosure into the rack before you begin the bracket installation. You must be

able to access the rear (inward) face of the rack columns.

1.6 Prerequisites 9

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