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3 Installing the Cable Management Bracket

The location of the cable management bracket depends on the rack position occupied by the HP
BladeSystem c-Class enclosure. The InfiniBand switch might be installed in any or all of the
interconnect module bays identified in

Table 2

.

3.1 Installing the Cable Management Bracket

Use the following procedure to install the HP BladeSystem c-Class enclosure cable management
bracket:

Caution:

When performing the installation procedure, extend only one c-Class enclosure no more than a
few inches from the rack at any time. Ensure that the rack is stable before you begin the installation
procedure.

Note:

One cable management kit is required for each InfiniBand switch installed in the rear of the c-Class
enclosure.

1.

Starting from the lowest bracket location, and using the fastener locations that you identified
and marked in

Chapter 2

, clip a cage nut into the back of each rear rack column.

2.

Hook the bracket onto the square cutouts in the rack column.

3.

Fasten the bracket to the rear rack columns by using two M6 pan-head screws and tighten
them to the specified torque.

4.

If more than one bracket is required, repeat Step 1.

5.

Slide the c-Class enclosure back into the rack and secure it at the front of the rack as specified
in the installation instructions for the enclosure.

6.

If necessary, attach the second bracket once the first switch (lowest switch in the c7000
enclosure) is cabled and tie-wrapped.

Note:

HP recommends that you only install the cable management bracket for the lowest InfiniBand switch
in the c-Class enclosure and complete the cable installation. Doing so makes it easier to install the
releasable cable ties for each of the InfiniBand cables. Once the releasable cable ties are installed
for the InfiniBand cables coming from the switch installed in the lowest interconnect module bay,
you must install the next cable management bracket and releasable cable ties for the next InfiniBand
switch. It is necessary to complete the installation for the lowest bracket first because there is not
enough space between the two brackets to secure the releasable cable ties for the lower bracket
when two or more brackets must be installed.

3.2 Installing the Releasable Cable Ties for the InfiniBand Cables

Figure 4

shows the holes in the bracket that are used in the cable management bracket for an

InfiniBand switch with 16 external uplink ports.

3.1 Installing the Cable Management Bracket

9

Summary of Contents for 16/18-Port Cable Management Kit

Page 1: ...lass enclosure s 16 port or 18 port InfiniBand switch mounted in the rear of the chassis to another c Class InfiniBand switch or an InfiniBand interconnect installed in an adjacent rack The cable management bracket currently supports the HP BLc QLogic 4X QDR InfiniBand Switch 505958 B21 and the HP BLc 4X FDR InfiniBand Switch 648312 B21 but it can potentially be used for other configurations as de...

Page 2: ...nties 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 ...

Page 3: ...requisites 6 2 Aligning the Bracket 7 3 Installing the Cable Management Bracket 9 3 1 Installing the Cable Management Bracket 9 3 2 Installing the Releasable Cable Ties for the InfiniBand Cables 9 4 Removing InfiniBand Cables and Switches 12 4 1 Removing a Damaged Cable From the c Class Cable Management Bracket 12 4 2 InfiniBand Switch Removal 12 Contents 3 ...

Page 4: ...switch module For example the InfiniBand cables that run from a HP c Class switch module 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...

Page 5: ... with M6 cage nut 25 30 in lb Posidrive M6 x 16mm pan head screws 2 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 18 push button mounts see callout 4 in Figure 1 18 releasable cable ties see callout 2 in Figure 1 ...

Page 6: ...nual that came with your switch Ensure you know how to plug in the InfiniBand cables as described in the InfiniBand switch manual that came with your switch Read the rack installation instructions for the c Class enclosure Obtain the set of cabling tables required for your HP InfiniBand network Important Do not secure the enclosure into the rack before you begin the bracket installation You must b...

Page 7: ...wn in Figure 2 1 Mounting hook installed in one of the mounting holes in the rack s rear left column 2 Cable management bracket Callout 1 shows the bracket s mounting hook installed in one of the square holes in the left rear rack column The actual mounting locations for a bracket are relevant to the location of the c Class enclosure in the rack and must align with the InfiniBand switch installed ...

Page 8: ...ct module bays contain the InfiniBand switch Note There might be more than one InfiniBand switch module in some configurations 2 Determine the rack U location that aligns with the top of the c Class enclosure 3 Using a pen or masking tape mark the mount locations defined in Table 2 Table 2 Bracket Mounting Locations Fastener Cutout Bracket Hook Cutout Relative U Location HP BladeSystem c7000 Enclo...

Page 9: ...an one bracket is required repeat Step 1 5 Slide the c Class enclosure back into the rack and secure it at the front of the rack as specified in the installation instructions for the enclosure 6 If necessary attach the second bracket once the first switch lowest switch in the c7000 enclosure is cabled and tie wrapped Note HP recommends that you only install the cable management bracket for the low...

Page 10: ...To install the InfiniBand cables and secure them with the releasable cable ties follow these steps 1 Install the push button mounts by pressing them upward into each hole in the cable management bracket see callout 4 in Figure 1 2 Cable the lower InfiniBand switch first as described in the hardware installation guide for the switch 3 To secure an InfiniBand cable callout 1 in Figure 5 to the cable...

Page 11: ... allow the InfiniBand cable callout 4 in Figure 6 to move freely in the releasable cable tie loop callout 3 in Figure 6 that is secured to the cable management bracket callout 2 in Figure 6 with a push button mount not shown in Figure 6 Figure 6 Gauging the Tightness of the Releasable Cable Tie Loop 1 2 3 4 5 Repeat steps 4 and 5 to secure the remaining InfiniBand cables 6 Route the InfiniBand cab...

Page 12: ...be difficult without the use of needle nose pliers and a small flat headed screw driver Be very careful not to damage other InfiniBand cables while using pliers or a screw driver 3 Remove the InfiniBand cable from the switch To remove the InfiniBand cable pull the release tab on the QSFP connector while using your other hand to remove the connector from the switch For more information on how to re...

Page 13: ...Do not bend the InfiniBand cables more than the minimum bend radius recommended by the cable manufacturer 5 Push the blade handle release button to release the blade handle 6 Open the blade handle and slide the switch all the way out of the HP BladeSystem c7000 enclosure 4 2 InfiniBand Switch Removal 13 ...

Page 14: ... 538272 doc Printed in the US ...

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