MABIP50

Use this procedure to isolate a failing PCI I/O adapter under a multi-adapter bridge.

This procedure iterates through any IOPs under the multi-adapter bridge and any PCI cards operating without an IOP. It powers off each one, and then resets the multi-adapter bridge. This process repeats until it isolates the failing part.

  1. Is the failing item located in an 8203-E4A, 9407-M15, 9408-M25, 8204-E8A, 9409-M50, 8234-EMA, 9117-MMA, 9406-MMA, 9125-F2A, or 5796 expansion unit?
    No:
    Continue with the next step.
    Yes:
    Continue with the next failing item in the failing item list. This ends the procedure.
  2. Is the failing item located in a 5797 or 5798 expansion unit and is the location code of the other failing items in the failing item list Un-P1-C4 through Un-P1-C10, or Un-P2-C4 through Un-P2-C10?
    No:
    Continue with the next step.
    Yes:
    Continue with the next failing item in the failing item list. This ends the procedure.
  3. Is the partition an AIX® partition or a Linux® partition, or is an HMC attached?
    No:
    Continue with the next step.
    Yes:
    Go to PCI bus isolation using AIX, Linux, or the HMC to isolate a PCI bus problem from AIX, Linux, or the HMC.
  4. Does the partition IPL to DST?
    No:
    Perform MABIP52. This ends the procedure.
    Yes:
    Go to the SST/DST display in the partition that reported the problem. If i5/OS® is running, use STRSST; if STRSST does not work, use function 21. If i5/OS is not running, IPL the partition to DST. Then, continue with the next step.
  5. On the Start Service Tools Sign On display, type in a user ID with QSRV authority and password.
  6. Select Start a service tool → Hardware service manager → Logical hardware resources → System bus resources.
  7. Page forward until you find the multi-adapter bridge where the problem was reported. For help in identifying the multi-adapter bridge from the Direct Select Address (DSA) in the reference code, see DSA translation. Verify that the multi-adapter bridge is the correct one by matching the resource name on the display with the resource name in the Service Action Log (SAL) for the problem that you are working on.
  8. Select Include non-reporting resources.
  9. Move the cursor to the first IOP under the multi-adapter bridge.
  10. If the IOP is virtual, go to step 14. Otherwise, for each IOP that is under the multi-adapter bridge that you are working on, select Associated packaging resource(s) → Display detail.
  11. Record the location of the IOP, except for virtual IOPs.
  12. Select Cancel → Cancel.
  13. Select Resources associated with IOP.
  14. For each I/O adapter under the IOP, perform the following:
    1. Select Associated packaging resource(s) → Display detail.
    2. Record the location.
      Note: There will be one IOA resource under each virtual IOP.
  15. Perform the following:
    1. Power off the frame or tower. See Powering on and powering off the system .
    2. Remove one of the IOPs and all of its IOAs, or the one IOA resource under a virtual IOP.
    3. Power on the frame or tower. Continue with the next step.
  16. Check for the same failure that brought you to this procedure. Check the system control panel, the SAL for the partition that reported the problem, or the Work with partition status display for the partition that reported the problem.
  17. Did the same reference code appear?
    No:
    Go to step 20.
    Yes:
    Power on the frame or tower. Then continue with the next step.
  18. Return to the System bus resources display showing the multi-adapter bridge and the associated resources.
  19. Is there another IOP under the multi-adapter bridge?
    No:
    Go to step 22.
    Yes:
    Return to step 15.
  20. If the IOP is virtual, then replace the IOA. This ends the procedure. Otherwise, the failing item is either the IOP or one of the I/O adapters that it controls. Reinstall the IOP and I/O adapters that you just removed. Perform MABIP55. If this procedure does not help you to identify a failing I/O adapter, then return here and continue with the next step in this procedure.
  21. Perform the following:
    1. Exchange the IOP that you identified in step 15.
    2. Power on the frame or tower. Does the same reference code that sent you to this procedure occur?
      No:
      The failing item was the IOP that you just exchanged. Reinstall all of the other IOPs and I/O adapters that you removed during this procedure. Go to Verify a repair . This ends the procedure .
      Yes:
      Continue with the next step.
  22. The failing item is the FRU containing the multi-adapter bridge which controls this IOP, or an IOA that is not under an IOP. Perform the following:
    1. Power off the unit that you are working on.
    2. Exchange the FRU containing the multi-adapter bridge.
    3. Power on the unit that you are working on.
    4. Does the same reference code that sent you to this procedure occur?
      No:
      The failing item was the multi-adapter bridge FRU that you just exchanged. Reinstall all of the other IOPs and I/O adapters that you removed during this procedure. Go to Verify a repair . This ends the procedure .
      Yes:
      Contact your next level of support. This ends the procedure.