RIOIP56

Use this procedure to restore the RIO 12X link to optimal bandwidth.

1. Record the RIO/HSL/12X loop number in the first four characters of word 7 of this SRC. The loop number is in hexadecimal format and must be converted to decimal.
2. Is the system managed by a Hardware Management Console?
   • Yes: Continue with the next step.
   • No: Go to step 6.
3. Perform the following from the Hardware Management Console:
   1. Select the system you are working on.
   2. Navigate to Hardware (information) and expand it.
   3. Select View RIO -12X Topology.
   4. In the current topology area, scroll until you find the data for the RIO/HSL/12X decimal loop number you identified in step 1.

   Is the link width 12X?

   • Yes: The RIO 12X cable connection is now operating at the optimal bandwidth. No further action is required. This ends the procedure.
   • No: Continue with the next step.
4. Unplug both ends of the cable indicated in the FRU list for at least 30 seconds and then reconnect it. Refresh the View RIO-12X Topology view on the Hardware Management Console and verify that the width is now 12X for the decimal loop number you identified in step 1.

   Is the link width 12X?

   • Yes: The RIO 12X cable connection is now operating at the optimal bandwidth. No further action is required. This ends the procedure.
   • No: Continue with the next step.
5. Replace the cable. Refresh the View RIO-12X Topology view on the Hardware Management Console and verify that the width is now 12X for the decimal loop number you identified in step 1.

   Is the link width 12X?

   • Yes: The RIO 12X cable connection is now operating at the optimal bandwidth. No further action is required. This ends the procedure.
   • No: Continue replacing the items in the FRU list until the problem is resolved. This ends the procedure.
6. Unplug both ends of the cable indicated in the FRU list for at least 30 seconds and then reconnect the cable. It is not possible to concurrently verify that the RIO 12X link has been restored to optimal bandwidth. If the same SRC occurs for this RIO 12X link after the next IPL, the problem has not been resolved. Replace the cable and check for the error condition after the next IPL. Continue replacing the items in the FRU list, and perform an IPL the system each time until the problem has been resolved. This ends the procedure.