DFS3974W UNABLE TO WRITE OUTPUT RECORDS FROM THE IMS DUMP FORMATTER TO DATA SET: data_set_name
Explanation
The IMS Dump Formatter was unable to open or allocate the data set identified in the message text by data_set_name. It was trying to use the data set for writing log records from dump log buffers.
System action
If you provided an existing data set, check that it was created in the proper format. If you did not create the data set, then the system was unable to allocate the data set.
System programmer response
Provide a valid data set to be used to write the records, or allow the formatter to create one.