FI01107

Complete the following steps:

1. Find the IOP address. See the System reference code format description.
2. To determine the location of the I/O processor card, see Part locations and location codes.

   The unit reference code indicates the I/O (SCSI) bus that has the problem:

   • URC 3020, 3100 -- I/O bus 0
   • URC 3021, 3101 -- I/O bus 1
   • URC 3022, 3102 -- I/O bus 2
   • URC 3023, 3103 -- I/O bus 3
   • Any other URC -- Any I/O bus on the I/O card
3. See Part locations and location codes to find the diagram of the system unit or the expansion unit and perform the following:
   • Find the IOP card location identified by the direct select address.
   • Find all the storage devices on the same I/O (SCSI) bus.
4. Replace the failing device. Use the device type to determine the part.
5. If the reference code that called out this failing item does not have a problem analysis procedure, perform the IOPIP16 procedure to isolate the possible failing device.