DS8000 Service Documentation Version 7.5

MAP4E20 RIO Topology tool

Use the RIO Topology Tool menu option to check the status of the RIO loops.

Related tasks:
How to start the service information center

MAP4E20 Section-1

Procedure

  1. Display the RIO topology status.
    1. From the navigation area, click Storage Facility Management > storage facility.
    2. From the bottom Task area, click Service Utilities > View Hardware Topology.
  2. The RIO Topology window is displayed. See Figure 1.
    Note:
    • The upper half of the window displays the Current RIO Topology.
    • The lower half of the window displays the last Valid RIO Topology.
    Figure 1. Window: RIO topology
    Window: RIO topology
  3. Check the LeadingPort Status and TrailingPort Status columns to determine the state of each RIO interface port/node (connection).
    Note:
    • A port status of Operational is normal.
    • A port status other than Operational indicates a problem that needs to be repaired.
    • A repair that causes a CEC enclosure to be powered off will, of course, power off those RIO nodes and non-operational status would be expected. After repairs are complete, check the port status again.
    • If no repairs are in progress and the port status is not Operational, continue at the next step.
  4. Does the tool indicate an open RIO loop?
    • Yes, observe the RIO loop cables and connections. If a RIO cable is found unplugged, misplugged or damaged, correct that now and then return to step 3 above. The RIO cable can be hot plugged without using a guided service procedure. If no visual symptom is found, continue at the next step.
    • No, continue with the next step.
  5. A serviceable event should have been created. Repair that serviceable event now. If there are no related serviceable events, contact your next level of support.