HP Cluster Platform Hardware Kits v2010 User manual

HP Cluster Platform
AC070A Cable Management Bracket
Installation Guide
HP Part Number: AC070A-doc
Published: October 2007
Edition: 4.0

©Copyright 2007 Hewlett-Packard Development Company, L.P.
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.

Table of Contents
1 Preparing for Installation................................................................................................6
1.1 Intended Audience............................................................................................................................6
1.2 Documentation Resources.................................................................................................................6
1.3 Revision History................................................................................................................................6
1.4 Kit Description..................................................................................................................................6
1.5 Kit Contents.......................................................................................................................................7
1.6 Required Resources...........................................................................................................................8
2 Installing the Kit..............................................................................................................9
2.1 Aligning the Bracket..........................................................................................................................9
2.1.1 ProLiant DL380 G5, DL385 G2, and RX2660 Mounting Instructions.......................................9
2.1.2 ProLiant DL585 G1 and ProLiant DL585 G2 Mounting Instructions.....................................10
2.1.3 Installing The Straps................................................................................................................11
2.2 Securing Cables Using the Straps....................................................................................................12
2.3 Adapting the Bracket for Other Server Models..............................................................................12
2.4 Removing the Server for Servicing..................................................................................................12
Table of Contents 3

List of Figures
1-1 Bracket.............................................................................................................................................7
1-2 Fabric Strap......................................................................................................................................7
2-1 Aligning the Bracket with the PCI Slot of a DL380 G5, DL385 G2, or RX2660 Series Server.........9
2-2 Aligning the Bracket with the Port of DL 585 Servers (Vertical PCI Slot).....................................10
2-3 Attaching the Strap........................................................................................................................11
2-4 Correct Cable and Port Alignment................................................................................................12
4

List of Tables
1-1 Fastener Specifications....................................................................................................................8
5

1 Preparing for Installation
This chapter describes what you need to do before you begin installing an AC070A cable
management bracket in an HP Rack 10000 Series cabinet. Note that 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.
This bracket is used to support cables on the following servers:
• DL585 G1 and DL585 G2 (Quadrics, Voltaire, and Cisco only)
• DL380 G5 riser cage A PCI-e (standard) in slot 5 (Quadrics, Voltaire, and Cisco only)
• DL385 G2 riser cage A PCI-e (standard) in slot 5 (Quadrics, Voltaire, and Cisco only)
• RX2660 riser cage A PCI-e (combination) in slot 1 (Quadrics, Voltaire, and Cisco only)
1.1 Intended Audience
This document describes how to attach an AC070A cable management kit bracket to an HP Rack
10000 Series cabinet. This bracket is designed to align and support cables that lead from a cluster's
system interconnect to the PCI card installed in each cluster node (server). This bracket is also
designed to support different types of cables and servers, as specified in the installation
instructions for your cluster.
1.2 Documentation Resources
You can view and download the QuickSpecs and other documentation for components referenced
in this installation guide from the following locations:
• HP Rack and Rack Options Web site:
http://h10010.www1.hp.com/wwpc/pscmisc/vac/us/en/en/proliant/proliant-dl.html
• HP ProLiant Server Products Web site:
http://h18004.www1.hp.com/products/servers/proliantstorage/racks
• HP Cluster Platform:
http://hp.com/techservers/clusters/xc_clusters.html
• High Performance Computing Documentation:
http://www.docs.hp.com/en/highperfcomp.html
1.3 Revision History
This document supersedes the HP Cluster Platform Generic Cable Management Bracket Installation
Guide (part number AA-RW5VC-TE) published in October 2004.
1.4 Kit Description
The AC070A cable management bracket kit described in this document is designed to align and
support cables that lead from a cluster's system interconnect to the PCI interface card installed
in each server (node). The bracket provides strain relief for the PCI port and ensures a good
connection. It also ensures the correct bend radius for the cable, and provides attachment points
for cable routing and cable management. A kit is required for every server that contains a PCI
interface card for the system interconnect.
6 Preparing for Installation

Note:
This bracket is designed to support different types of cables, from 5/16-inch (7.9-mm) minimum
diameter to 5/8-inch (15.9-mm) maximum diameter. Refer to the documentation supplied with
your cluster before installing the brackets and routing the cables.
1.5 Kit Contents
The AC070A cable management kit contains the following components:
• The bracket shown in Figure 1-1.
Figure 1-1 Bracket
1
2
The bracket is adaptable for use in several HP Cluster Platform configurations, and might
also be applicable in other cable management applications (refer to your hardware installation
documentation). The following bracket features are shown in Figure 1-1:
1The mounting face, which contains three mounting slots. You attach cable
management straps to this part of the bracket.
2Mounting holes, which you use to attach the bracket to the rack, or to a server's
rail kit.
• Two 3.5-inch (89-mm) fabric straps (see Figure 1-2) that mount on the bracket.
Figure 1-2 Fabric Strap
1
3
2
Each strap has a hook-and-loop fabric closure (callout 1) and a metal D-ring (callout 2) that
is designed to secure a single interconnect cable. The straps are secured to the bracket through
a metal grommet (callout 3).
• The fasteners that are specified in Table 1-1.
1.5 Kit Contents 7

Table 1-1 Fastener Specifications
DescriptionTorqueFormatSizeQty.
Machine screw, pan-head. For use with a threaded
insert in the server's rail kit, or the 10-32 cage nuts.
30 in/lbPhillips
(Posidrive)
10-32 x .375-inch2
Machine screw, pan-head. For use with the cage nut.30 in/lbPhillips
(Posidrive)
M6 x 16 mm4
Cage nut for M6 x 16-mm screw.N/ASquare nutM64
Cage nut for 10-32 x .375-inch screw.N/ASquare nut10-322
• Packaging and documentation.
To prevent screws from becoming loose due to vibration, HP recommends using an adjustable
torque driver set to the torque specifications given in Table 1-1. Contact your HP sales
representative if any parts are missing from your kit.
1.6 Required Resources
To install the generic cable management bracket kit, you need the following resources:
• Tools:
— A 6-inch long #2 (medium) Phillips (Posidrive or cross-point) screwdriver, or #2 bit for
a power screwdriver.
— Cage-nut insertion tool (optional).
— Marker pen or masking tape.
• Resources: A sample cable of the type used by the system interconnect.
• Environment:
— A work surface adjacent to the rack.
— A stable work platform or step stool that lets you safely reach the servers installed in
the upper part of the rack.
8 Preparing for Installation

2 Installing the Kit
At the time of publication, these installation instructions apply to the specific HP servers that
are identified in the installation procedures in Section 2.1. This bracket might also be adapted
for other cable management uses, as specified in the installation documentation for HP Cluster
Platform models.
2.1 Aligning the Bracket
Depending on the server model, the bracket installs in one of the following locations:
• ProLiant DL380 G5,DL385 G2, and RX2660
Use the bracket in an outward orientation for a horizontal installation. Attach the bracket
to the rear rack columns of the HP Rack 10000 Series cabinet, as described in Section 2.1.1.
• ProLiant DL585 G1 and ProLiant DL585 G2
Use the bracket in an outward orientation for a vertical installation. Attach the bracket to
the rear rack columns of the HP Rack 10000 Series cabinet, as described in Section 2.1.2.
2.1.1 ProLiant DL380 G5, DL385 G2, and RX2660 Mounting Instructions
Use this procedure for the ProLiant DL380 G5, ProLiant DL385 G2, and RX2660, or as specified
in the installation instructions for your system. Working from the rear of the rack, follow these
steps to install the bracket:
1. Place the bracket against the rack columns so that it faces outward and upward.
2. Place the bracket horizontally along the rack columns so that it aligns with slot 5 of the
DL380 G5 and DK385 G2 servers or slot 1 of the RX2660 server, as shown in Figure 2-1. The
bracket's face (containing the elongated slots) faces upward in this orientation.
Figure 2-1 Aligning the Bracket with the PCI Slot of a DL380 G5, DL385 G2, or RX2660 Series
Server
5
3
4
1
2
6
The following features are identified by the callouts in Figure 2-1:
1The direction of view, toward the rear of the rack.
2The bracket mounted in an outward-facing orientation.
2.1 Aligning the Bracket 9

3The fabric support strap. The strap is attached to the bracket slot with a single cage
nut and screw.
4The cable is routed to the cable management plate, and down to the interconnect.
5The cable connector (shown in slot 5 in this example for the DL380 G5 and DL385
G2 servers or slot 1 for the RX2660 server), which you must secure level and square
to the HCA port to prevent EMI leakage.
6The rear right rack column.
3. The bracket’s mounting holes should align with a square hole in each of the rear rack columns.
(A minor vertical adjustment might be necessary, but the bracket must remain approximately
aligned with the top of the PCI port). Mark the rack column holes with a marker pen or tape.
4. Clip two cage nuts into back of each rack column, using the square holes that you marked
in step 3. (Figure 2-2 shows an example on how to insert a cage nut.)
5. Using a #2 Phillips screwdriver, secure the bracket to the rack column with two M6 x 16-mm
fasteners.
Proceed to Section 2.1.3.
2.1.2 ProLiant DL585 G1 and ProLiant DL585 G2 Mounting Instructions
Use this procedure for the ProLiant DL585 servers, or as specified in the installation instructions
for your system. Working at the rear of the rack, follow these steps to install the bracket:
1. For systems with vertical PCI slots, such as the ProLiant DL585, align the top surface of the
bracket (callout 1 in Figure 2-2) so that it is .25-inch (6 mm) below the center of the port
(callout 2).
Figure 2-2 Aligning the Bracket with the Port of DL 585 Servers (Vertical PCI Slot)
1
2
3
4
10 Installing the Kit

This position ensures that the center of the cable aligns with the center of the port when you
secure the cable with the strap.
Adjust the vertical position of the bracket until the two holes in the bracket align with two
square holes in the rear rack columns. Mark the location of the square mounting holes and
set the bracket aside.
2. Using a #2 Phillips screwdriver, secure the bracket to the rack column with two M6 x 16-mm
screws (callout 3) and M6 cage nuts (callout 4), one on each side.
Proceed to Section 2.1.3.
2.1.3 Installing The Straps
To attach the first strap to the bracket, follow these steps:
1. Position the strap on the bracket, as shown in Figure 2-3, so that it is approximately adjacent
to the interconnect card in the server's PCI slot.
Figure 2-3 Attaching the Strap
2
1
3
2. Clip a cage nut into the bottom of the bracket's slot, as indicated by callout 1.
3. Insert an M6 x 16-mm fastener (callout 2) through the metal grommet in the strap (callout
2).
4. Use a #2 (medium) Phillips screwdriver to secure the strap.
5. Perform this step only when fitting the first bracket:
Rotate the strap (callout 3) and align it with the port in the PCI card. Using a sample cable,
align the strap so that the cable's connector (plug) is aligned correctly with the port. Use the
location of this first strap to determine the correct strap mounting position for all subsequent
bracket installations.
6. After aligning the strap, tighten the screw to its specified torque.
Repeat the installation procedure for subsequent bracket kits, using a marker pen or masking
tape to transfer the correct location of the strap to each bracket.
Use the second fabric strap if power and signal cables are located on the same side of the server.
The second strap allows the PCI cable to be routed to the opposite side. Consult the cabling
instructions for your cluster model for more information on the second strap.
After installing all of the brackets, refer to the cabling instructions for your cluster model before
starting the cabling procedure described in Section 2.2. (See Section 1.2 for the location of the
online cluster documentation.)
2.1 Aligning the Bracket 11

2.2 Securing Cables Using the Straps
To secure a cable using the straps, follow these steps:
1. Connect the cable to the port in the PCI adapter and secure it mechanically by its clips,
screws, or clamps.
2. Route the cable over the strap, loop the strap through its D-ring, and secure the strap by its
hook-and-loop closure. Ensure that the cable is clamped tightly by the strap and that it
cannot move.
3. If your cluster model requires two fabric straps for cable management, route the cable over
the second strap and follow the procedure in step 2.
4. Verify that the cable is aligned correctly, as shown in Figure 2-4. The cable is square and
level with the port at the position indicated by callout 1 or callout 2, with no strain on the
connection.
Figure 2-4 Correct Cable and Port Alignment
12
2.3 Adapting the Bracket for Other Server Models
Where approved by HP and described in the installation and service documentation for the HP
Cluster Platform, you can adapt this bracket kit for use with other servers, subject to the following
considerations:
• The server contains a PCI adapter card with a multipin port, supporting a multicore copper
(parallel) cable. The straps are not suitable for thin cables, such as fiber-optic.
• If a threaded hole is provided in the server's rail kit, ensure that the fasteners described in
Table 1-1 are the correct size and thread. Use either of the supplied fasteners or use the
fasteners that are shipped with the server's rail kit.
• If the fasteners do not work for the server's rail kit, attach the bracket to the rack columns
instead, inverting it if necessary to obtain the correct alignment. Use the appropriate
installation method described in Section 2.1.
• When routing cables, ensure that cables remain within their bend radius specification, as
defined in the documentation for your model of HP Cluster Platform.
2.4 Removing the Server for Servicing
Bring the component to an appropriate state for removal, and put the rack cabinet into a safe
and stable state for component removal. You must ensure that can you can reach the component
easily and handle it safely. To remove the server, follow these steps:
1. Switch off the power supply from the rack's power distribution unit and disconnect the
server's power cable.
2. Disconnect and remove each network cable until all networking ports are unplugged.
12 Installing the Kit

3. Unstrap the cable and remove its connector from the PCI card port. When disconnecting
the cable, ensure that you do not bend it more than the recommended minimum bend radius.
The cable specifications are provided in the documentation for your cluster type.
4. Unlock and slide the server all the way out of the rack, as described in the documentation
for the server rack kit.
2.4 Removing the Server for Servicing 13

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