Setup and Install

Troubleshooting HyperFabric
Determining Whether an Adapter or a Cable is Faulty
Chapter 5
122
Determining Whether an Adapter or a Cable is Faulty
If you suspect that either an HyperFabric adapter or a cable attached to it is faulty,
follow these steps to determine which component needs replacing:
Step 1. Disconnect the cable from the HyperFabric adapter.
Step 2. Attach a loopback plug to the adapter:
• For the A4919A, A4920A, A4921A, and A6092A adapters: Be sure to use a copper
loopback plug (one is shipped with each HF1 adapter).
• For the A6386A adapter: Be sure to use a fibre loopback plug (one [HP part number
A6384-67004] is shipped with each HF2 switch).
Step 3. Determine if the adapter is faulty:
• If the adapter is functioning correctly, the “Connected/Traffic,” “Link,” or “Link
Connected/Traffic” LED on the adapter shows as solid green.
• If the adapter is faulty, the “Error” LED on the adapter shows as solid yellow.
See Table 5-1 on page 111 for a list of the LED names for each HyperFabric adapter.
Step 4. If the adapter is faulty, you must replace it (see “Replacing a HyperFabric Adapter” on
page 125).
If the adapter is not faulty, assume that the cable is faulty and you must replace it.