CDC Guide for z/OS

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MVS LNKLST Concatenation

Informatica strongly recommends against including the PowerExchange libraries in the MVS LNKLST concatenation as unexpected abends can occur. When PowerExchange software is included in the LNKLST concatenation, PowerExchange gets control during OPEN processing for all VSAM data sets. PowerExchange does a registration check to determine if the VSAM data set is registered for capture. The registration check process requires that the PowerExchange Agent be active.

If site standards require that the PowerExchange libraries are included in the LNKLST concatenation, the following rules apply:

The library containing the EDMSDIR module must also be included in the LNKLST concatenation.

EDMSDIR should specify the option CCERR=CONT as OPEN processing for any VSAM data set causes PowerExchange to get control. If CCERR=ABEND is coded, VSAM OPEN requests fail if the PowerExchange Agent is not active.

Source for EDMSDIR is supplied in member XICDC600 in the RUNLIB library. Change and rerun this job if changing the CCERR parameter is necessary.

To override the EDMSDIR included in the LNKLST concatenation and use CCERR=ABEND for VSAM batch jobs, add the EDMPARMS DD statement to the VSAM batch jobs updating VSAM data sets registered for capture. Specify a different data set name in the EDMPARMS DD statement than is specified in the LNKLST concatenation, and include an EDMSDIR module that specifies CCERR=ABEND.

If you add the PowerExchange LOAD library to the LNKLST concatenation, you can stop an ECCR from capturing changes for a specific job by including the following DD statement:

//EDMNOCAP DD DUMMY

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CDC Guide for z/OS

CDC Guide for z/OS

MVS LNKLST Concatenation

MVS LNKLST Concatenation