Diagnosing Data Integrity Warnings and Violations

IEC984I and IEC985I display if you specify MODE(WARN) in IFGPSEDI. Monitor messages IEC984I and IEC985I for possible failures. If you decide to globally bypass data integrity processing for the data sets that are listed in the message, include those data set name in the IFGPSEDI SYS1.PARMLIB member. If the data set is being processed by an application that supports concurrent opens for output, consider modifying the application to bypass data integrity processing. If the application does not support concurrent opens, consider preventing concurrent opens for output.

If the exclude list is empty (no data set names specified) and IFGPSEDI specifies MODE(WARN) or MODE(ENFORCE), data integrity processing occurs for all sequential data sets.

You can set applications to bypass data integrity processing for the data set that is being opened in the following ways:

Specify the DCBEEXPS exclude flag in the DCBE macro.
Specify the SCTNDSI exclude flag in the step control block.
Dynamically allocate the data set with S99NORES specified. This action sets the DSABNODI exclude flag for the data set
Request the NODSI flag in the program properties table for the application program.

Related reading: For more information on the warning messages and abends for data integrity processing, and the flags for SMF record types 14 and 15, see the z/OS DFSMSdfp Diagnosis and z/OS MVS System Management Facilities (SMF).