MABIP03

The PCI cards will all be in a PCI bridge set. The serviceable event view you are working with may have all the PCI adapter locations for the PCI bridge set listed. The procedure will iterate through each IOP under the multi-adapter bridge, powering each one off, and then resetting the multi-adapter bridge. This process will be repeated until the failing part is isolated.

1. Does the system IPL to DST?
   • Yes: Go to the SST/DST display in the partition which reported the problem:
     • If i5/OS^(R) is running, use STRSST.
     • If STRSST does not work, use function 21.
     • Or IPL the partition to DST.

     Then, continue with the next step.

2. On the Start Service Tools Sign On display, type in a user ID with service authority and password.
3. Select Start a service tool -> Hardware service manager -> Logical hardware resources -> System bus resources.
4. The resource name may be in the serviceable event view or you may have determined the resource name already in another procedure. Do you have the resource name where the problem was reported?
   • Yes: Continue with the next step.
   • No: Perform the following:
     1. Record the bus number, which is the first four characters of word 7 in the SRC.
     2. Convert the bus number from hexadecimal to decimal format using a calculator or similar tool that provides a conversion function.
     3. Select Display Details for each system bus until you locate the bus with a matching decimal bus number. The multi-adapter bridge that reported the problem is a resource on that bus. Continue with the next step.
5. Page forward until you find the multi-adapter bridge where the problem was reported (for help with identifying the multi-adapter bridge from 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.
6. Select Include non-reporting resources.
7. Move the cursor to the first IOP under the multi-adapter bridge.
8. For each IOP that is under the multi-adapter bridge that you are working on, select Associated packaging resource(s) -> Display detail.
9. Record the location of the I/O processor (IOP).
10. Select Cancel -> Cancel.
11. Select Resources associated with IOP.
12. For each I/O adapter under the IOP, perform the following:
    1. Select Associated packaging resource(s) -> Display detail.
    2. Record the location. Then continue with the next step.
13. Perform the following:
    1. Power off the frame or expansion unit (see Powering on and powering off).
    2. Remove one of the IOPs and all of its IOAs.
    3. Power on the frame or expansion unit (see Powering on and powering off).

       Check for the same failure that brought you to this procedure. Check the system control panel, the Service Action Log (SAL) for the partition which reported the problem, or the Work with partition status display for the partition that reported the problem. Did the same SRC appear after the frame or expansion unit was powered on?

       • Yes: Continue with the next step.
       • No: Go to step 15.
14. Perform the following:
    1. Power on the frame or expansion unit (see Powering on and powering off).
    2. Return to the System bus resources display showing the multi-adapter bridge and the associated resources.

       Is there another IOP under the multi-adapter bridge?

       • No: Go to step 17.
       • Yes: Go to step 13.
15. The failing item is either the I/O processor or one of the I/O adapters that it controls. Perform the following:
    1. Reinstall the IOP and I/O adapters that you just removed.
    2. then return here and continue with the next step in this procedure.
16. Perform the following:
    1. Exchange the I/O processor that you identified in step 15.
    2. Power on the frame or expansion unit (see Powering on and powering off).

    Does the same SRC 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 Verifying a repair. This ends the procedure.
    • Yes: The failing item is the FRU containing the multi-adapter bridge which controls this IOP. Continue with the next step.
17. There are no failing IOPs. The failing item is the FRU containing the multi-adapter bridge that controls this IOP. Perform the following:
    1. Power off the system or expansion unit that you are working in (see Powering on and powering off).
    2. Exchange the FRU containing the multi-adapter bridge.
    3. Power on the system or expansion unit that you are working in (see Powering on and powering off).

    Does the same SRC 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 Verifying a repair. This ends the procedure.
    • Yes: Contact your next level of support. This ends the procedure.