GLO7659E OPEN failed for SYSIN file.

Explanation
During SMF Reporting Utility processing,
the SORT_BY parameter was specified. To perform sort processing, the
utility must open the ddname SYSIN to communicate with the sort routine,
but the OPEN operation was unsuccessful. 

User response
Look in the job log for data management (IECxxx)
messages that contain more information about the error. If the problem
persists, contact IBM® Software Support. 