ICP409I WRITE OF IOCDS IS INVALID BECAUSE IOCP CANNOT DETERMINE PROCESSOR MODEL NUMBER (RC=xx)

Explanation

IOCP is unable to write the IOCDS because it cannot determine the model number of the CPC. Your operating system might be missing maintenance that IOCP requires. IOCP uses the STSI machine instruction or operating system services to determine the CPC model number.