Linux Clusters QsNetII Cable Management Kit Installation Guide

12 Removing the Cable Management Kit

Remove the rear cable management brackets and bars only if you are removing an

entire interconnect chassis. You remove the interconnect chassis by sliding it out

of the rear of the rack. If the cables are not labeled for their respective ports, you

might want to label them prior to disconnecting any cables.

Remove the rear cable management brackets and bars as follows:

________________________ Caution _______________________

Before beginning any component removal procedures, power off the

interconnect by using the breaker switch at the power distribution

unit unless the component is designated as hot-swappable. Consult

the documentation for you cluster to confirm whether a component is

hot-swappable. If you intend to remove the interconnect chassis from the

rack, ensure that all cables (such as network, power and interconnect)

are disconnected as described in the Service documentation for the

model of interconnect.

1. Disconnect the cables and remove them from the hooks. Support any

unfastened cables so that their specified bend radius is not exceeded.

2. For each of the eight cable management bars, pull down on its spring-loaded

retainer pin and swing the bar down 90 degrees.

3. Beginning with the upper rear bracket, remove the four M6 X 16 mm pan-head

screws that retain it to the rack. If you intend to replace the kit, do not remove

the cage nuts from the rack columns.

4. If you are replacing an interconnect chassis, do not disassemble the

cable management bars from the lower brackets. However, because the

bracket-and-bar assembly is heavy, two people are required to remove it safely.

One person should support the weight of the assembly while another person

removes the four M6 X 16 mm pan-head screws from the lower bracket.

5. You do not need to remove the cable guide plates. However, take care to

route any disconnected cables out of the way of the interconnect before you

attempt to remove it.

_____________________ Warning _____________________

The interconnect is heavy and two persons are required to remove

it from the rack. Consult the service documentation for your cluster

before attempting to remove the interconnect chassis from the rack.

QsNet

Cable Management Kit Installation Guide 11