An attempt was made to initiate an input/output operation beyond the limit imposed by the NCP (number of channel programs) subparameter of the DCB parameter or option of the ENVIRONMENT attribute. For a file with the attributes SEQUENTIAL and UNBUFFERED, the default for NCP is one. The limit, for VSAM files, is specified either by the NCP option of the ENVIRONMENT attribute or by the STRNC sub-parameter of the AMP parameter in the DD statement. The limit is one for both SEQUENTIAL and DIRECT UNBUFFERED files except when using the ISAM compatibility interface. The ONCODE associated with this message is 1014.