IOPIP41

Use this procedure to correct the problem when an auxiliary cache I/O adapter is not connected to a storage I/O adapter or when an auxiliary cache I/O adapter is connected to an incompatible or non-operational storage I/O adapter.

Perform the following:

Ensure that the SCSI cable of the auxiliary cache I/O adapter is connected to the last port of the storage I/O adapter. Do the following:
1. Use the location of the auxiliary cache I/O adapter displayed in the Service Action Log. If the Service Action Log does not have a location, determine the address of the auxiliary cache I/O adapter. See The System Reference Code (SRC) Format Description.
2. Determine the location of the auxiliary cache I/O adapter. See Locating FRUs for the model you are working on.
3. Ensure that the SCSI cable of the auxiliary cache I/O adapter is properly connected to the last port of the storage I/O adapter.
4. Ensure that the slot power indicator is lit for the storage I/O adapter. If it is not, use concurrent maintenance to power on the slot.
Did you just replace the auxiliary cache I/O adapter because of a failure and did the new replacement auxiliary cache I/O adapter log a 9073 URC?
- Yes: The SCSI bus on the storage I/O adapter may be disabled as a result of the initial failure. Use Hardware Service Manager to re-IPL the storage I/O adapter that is connected to the new replacement auxiliary cache I/O adapter. This ends the procedure.
- No: Continue with the next step.
Ensure that the auxiliary cache I/O adapter is supported for the storage I/O adapter to which it is connected. See the PCI adapter installation instructions for information about which adapters are compatible.
Replace the SCSI cable that connects the auxiliary cache I/O adapter to the storage I/O adapter. See Part Information for cable part number information. If this does not fix the problem, replace the storage I/O adapter. This ends the procedure.