IBM SAN384B-2, Installation, Service And User Manual

Page: 126 / 190

Figure 45 shows an QSFP cable and transceiver. The QSFP connectors on the core
blades are labeled by trunk group (trunking is optional) for ease of installation.
The subsequent figures, beginning with Figure 47 on page 96, show acceptable
cabling configurations for the ICL feature. The recommended topology is the
parallel type where there are four QSFP cables connected between any pair of
SAN384B-2 or SAN768B-2 chassis. The full mesh configuration is also supported.
Time and items required
The replacement procedure for an QSFP cable takes less than five minutes. You
will need a replacement QSFP cable and transceiver (if necessary).
Removing an inter-chassis link (QSFP) cable
Complete the following steps to remove a QSFP cable.
1. Remove the chassis door (“Removing and installing the chassis door” on page
67).
2.
If you are replacing an ICL cable, note the cable routing, paying attention to
which cable end plug into which socket. Replace only one ICL cable at a time
to minimize errors.
3. Grasp the rubber housing on the end of the cable and pull it straight out of the
QSFP transceiver.
4. If the QSFP transceiver also needs to be replaced, remove the QSFP transceiver
by rotating the bail down and using the bail to pull the transceiver out of the
connector on the blade.
5.
Repeat for each cable that requires replacement.
6. If you are not replacing the ICL cables, insert the rubber plugs into each QSFP
transceiver.
Installing an ICL cable
Complete the following steps to install a QSFP cable.
384b081
Figure 45. QSFP cable and transceiver
384b082
Figure 46. QSFP cable and transceiver (bail open)
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SAN384B-2 Installation, Service, and User Guide
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