IEC984I & IEC813I ENHANCED DATA INTEGRITY VIOLATION messages

Products

• Datacom
• Datacom/AD
• Datacom/DB

Issue/Introduction

With certain configurations in z/OS version 1.5 and later, it is possible to receive messages similar to these at startup of the Datacom/AD or Datacom/DB MUF. Is this a problem?

IEC813I EDI OWNER: JN=mufjobname, SYSNAME=lpar, TCB=00ABF6E0, ASID=0089
IEC984I mufjobname,416F,volser,<<your filename here>> NOT EXCLUDED BUT HAD AN ENHANCED DATA INTEGRITY [INPUT|OUTPUT] VIOLATION

Environment

Release : All

Component : Datacom/AD

Component : Datacom/DB

Resolution

These messages are both informational and are associated with an S213 abend and message IEC143I 213-FD.... They are issued when running in WARN mode for the EDI (Enhanced Data Integrity) Facility as specified in SYS1.PARMLIB(IFGPSEDI). In essence, these messages indicate that EDI believes there is a potential for data corruption with the specified file if multiple jobs open the file for output while using a disposition of SHR.

The EDI warning message identifies the potential problem file, and if WARN mode is later changed to ENFORCE, will cause this task to fail.

While this is not necessarily a problem in WARN mode, the solution is to exclude Datacom files used by the Multi-User Facility (MUF) from EDI processing. They should be entered in SYS1.PARMLIB(IFGPSEDI), and can be specified generically using * and % wildcards (with the usual meanings) to reduce the number of entries in this member. The operational files listed in the MUF JCL/Proc should be added to the list (CXX, LXX, PXX, FXX), as should all the database files used by the MUF which are allocated dynamically. These filenames can be found in a full CXX report for all databases by searching for the string 'DATA SET NAME' in the report. For more information about running the full CXX report, please consult the Datacom/DB DBUTLTY Reference Guide for your release level. The DBUTLTY SYSIN for this process is

//SYSIN    DD  *
 REPORT AREA=CXX
/*

to list all databases. Filenames can also be obtained through SYSVIEW by issuing a DCDSETS command once the desired MUF has been selected.

Additional Information

For more information about EDI, please refer to IBM documentation for program IFGPSEDI.

In addition, you can refer to the IBM documentation "DFSMS Using Data Sets" in the section "Enhanced Data Integrity for Shared Sequential Data Sets."

As always, please contact Broadcom support for Datacom if you have further questions.