1.3 Reviewing the Cable Precautions
Review the following RDMA Network Fabric cable precautions before working with the cables:
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Fiber optic cables with laser transceivers must be of type Class 1.
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Do not allow any copper core cable to bend to a radius tighter than 127 mm (5 inches). Tight bends can damage the cables internally.
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Do not allow any optical cable to bend to a radius tighter than 85 mm (3.4 inches). Tight bends can damage the cables internally.
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Do not use zip ties to bundle or support cables. The sharp edges of the ties can damage the cables internally. Use hook-and-loop straps.
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Do not allow any cable to experience extreme tension. Do not pull or drag the cables, which can damage them internally.
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Unroll a cable for its length.
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Do not twist cables more than one revolution for their entire length. Twisting a cable might damage it internally.
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Do not route cables where they can be stepped on, or experience rolling loads. A crushing effect can damage the cable internally.
Parent topic: Preparing to Extend Oracle Exadata Database Machine