A STOW was issued against the data set, but the specified data control block (DCB) is not open or is opened incorrectly.
The system ends processing.
If the error recurs and the program is not in error, look at the messages in the job log for more information. Search problem reporting data bases for a fix for the problem. If no fix exists, contact the IBM® Support Center. Provide the JCL and the SYSOUT output for the job.
DFSMSdfp
IDCIO01, IDCIO02, IDCIO03