IDC3311I ** TYPE OF POSITIONING NOT SUPPORTED

Explanation
Positioning is valid only for virtual storage access
method (VSAM) and indexed sequential access method (ISAM) data sets.

System action
The system ends processing of the command.

System programmer response
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.

Programmer response
Respecify the JCL statement defining a VSAM
or ISAM data set or remove the positioning parameter.  Run the job
again.

Source
DFSMSdfp

Module
IDCIO03