ICP406I READ/WRITE IOCDS REQUEST FAILED WITH ERROR CODE `xxxx` HEX

Explanation

IOCP attempted to read or write an IOCDS. However, the facility which reads and writes IOCDSs is unavailable and failed with error code xxxx hexadecimal.

System action

IOCP sends message ICP0501I and terminates.

Programmer response

For z/VSE®, ensure that VSE is not running as a guest under VM. VSE does not support reading or writing an IOCDS as a guest under VM. Use the VM version of the IOCP.

If z/VSE is not running as a guest under VM, report the error code to your service representative.

For z/OS® and z/VM®, the read/write IOCDS facility of the CPC is not operational. Report the problem to your service representative.

For z/VM, if the service representative does not find any problems with the CPC, the problem might exist with the CMS-IOCP interface module (DMSICP).

Problem determination

Related message ICP051I indicates the function IOCP attempted.