Unbundling The Inter-Switch Cables; Applying Cable And Rack Labels; Connecting The Cables; Bundling The Cables - Oracle Exalogic EL X2-2 Multirack Cabling Manual

4.4 Unbundling the Inter-Switch Cables

Unbundle the inter-switch cables. Remove the cable ties holding the cables together,
such as hook-and-loop fasteners. Lay the cables out gently in collections of like
length. Observe safety precautions. Be careful when handling the cables to avoid
cable damage.

4.5 Applying Cable and Rack Labels

Re-label all inter-rack cables from leaf switches to spine switches. Re-label each cable
to identify the correct locations at both cable ends, so that cables can be connected
correctly during future maintenance. Label all cables using the following convention:
Rack[#]LeafSW[#]Port[#] -> Rack[#]SpineSW[#]Port[#]
When labeling racks, label all installed Exalogic machines (or a combination of
Exalogic machine and Exadata Database Machine) according to the plan you
prepared in the previous chapter.

4.6 Connecting the Cables

Procedures to connect cables are discussed in the following chapters:
• Connecting Two Exalogic Machines
• Connecting Exalogic and Exadata Machines

4.7 Bundling the Cables

Bundle the cables together. Be sure and leave the last 18 inches free so that you can
maneuver cables into position near the leaf switch or the spine switch. You should
probably wait until each of the bundles is installed into its final position before you
connect them together.

4.8 Inspecting the Cables

Perform a visual inspection to confirm that the leaf switches and spine switches in
each rack (Exalogic machines and Exadata Database Machine) have the correct
number of InfiniBand connections. You should also verify that the ports in the leaf
switch are occupied. You should also verify that each spine switch has the correct
number of cables coming into it.
Tip:
Verify the required number of cables and cable lengths. Procedures in this
guide assume that the racks are next to each other. Label the cables, on both
ends. Use the labeling format described in the cabling tables located in the
appendices at the end of this document.
Chapter 4
Unbundling the Inter-Switch Cables
4-2