DS8000 Service Documentation Version 7.5

RIOIP03

Use HSM to examine the HSL Loop to find failing items. Use this procedure to determine the status of HSL links in the loop.

RIOIP03 Section-1

Procedure

  1. Sign on to SST or DST.
  2. Select Start a service tool > Hardware service manager > Logical hardware resources > High-speed link resources.
  3. Move the cursor to the HSL loop that you want to examine, and select Display detail > Include non-reporting resources. The display that appears shows the port status of the HSL controller for the loop that you selected.
  4. Record the resource name, type-model, and serial number, if it has not been previously recorded.
  5. Is the status of the "Leading port to next resource" operational?
    • Yes, select Follow leading port. Then, continue with the next step.
    • No, you have found the first "failed" resource in the link. You will be directed to find the other "failed" resource on this link. Go to step 8.
  6. Record the HSL resource name, type-model, part number, and port.
  7. Is the resource name the same name that you recorded for the HSL controller in step 4?
    • Yes, you have followed the HSL links around the loop and back to the HSL controller on the system. You did not find a "failed" link. Return to the procedure that sent you here. This ends the procedure.
    • No, the display that appears is showing the status of the HSL ports for the next I/O adapter resource on the loop. Go to step 5.
  8. Find and record the information for the "first" failing resource using the following steps:
    1. Record the resource name, card type-model, part number, and port.
    2. Select Cancel to return to the Work with system interconnect resources display.
    3. Select Resources associated with ring for the loop with the failure.
    4. Select Associated packaging resources for the HSL I/O adapter with the resource name that you recorded.
    5. Record the frame ID, card position, and port. Record this information for the "first" failing link in (diagnosis form).
    6. Select Display detail and record the card position for the "first" failing resource.
  9. Find and record the information for the other (second) failing resource using the following steps:
    1. Select Cancel to return to the Logical hardware associated with HSL ring display.
    2. For the HSL I/O adapter with the name of the "first" failing resource, select Display detail > Follow leading port. You have located the "second" failing resource on the link.
    3. Record the resource name, card type-model, part number, port.
    4. Select Cancel to return to the Logical hardware associated HSL rings display.
    5. Select Associated packaging resources for the HSL I/O adapter with the resource name that you recorded for the "second" failed resource.
    6. Record the frame ID, card position, and port. Record this information for the "second" failing link in (diagnosis form).
    7. Select Display detail, and record the card position for the "second" failing resource.
  10. Have you repeated steps 1 through 9 for a second time during this procedure?
    • Yes, return to the procedure that sent you here. This ends the procedure.
    • No, does the "first" failing resource and the "second" failing resource have the same frame ID?
      • Yes, return to the procedure that sent you here. This ends the procedure.
      • No, perform the following to determine if the HSL cable connectors between the first and second failing resources are properly seated and clean:
        1. Disconnect the cable at the frame ID, card position, and port that you recorded for the "first" failing resource, then wait 30 seconds and reconnect it. You must fully connect the cable and tighten the connector's screws within 30 seconds of when the cable makes contact with the port. Otherwise, the link will fail and you must disconnect and reconnect the cable again. If the connector screws are not tightened, errors will occur on the link and it will fail.
        2. Disconnect the cable at the frame ID, card position, and port that you recorded for the "second" failing resource, then wait 30 seconds and reconnect it. See the 30 second attention notice in step 10.a.
        3. Refresh the port status by doing the following:
          • Wait 1 minute.
          • Select Cancel > Refresh.
          Determine if the link has become "operational" by repeating steps 1 through 9 for a second time, returning to the procedure that sent you here when directed.

          You may see a 6982 indicating that the loop went open and then a 6985 indicating that the loop recovered. This ends the procedure.