DBRC support
IMS HP Change Accumulation Utility can use DBRC services to generate JCL for each change accumulation group (CAGROUP).
Secondary logs
The DBRC GENJCL.CA command normally selects secondary logs (SECLOG) only if the paired primary logs (PRILOG) are marked in error.
IMS HP Change Accumulation Utility extends the capabilities of DBRC and IMS/CA to allow processing of either the set of primary logs or the set of secondary logs. DBRC is required and dual logging must be active.
When selected, the secondary log feature substitutes each secondary log for its corresponding primary log. Each primary log that is that is selected must be paired with a unique secondary log identified by SSID and Start time.
Two temporary files that are used in the process are dynamically allocated as shown in the following example:
HPCLOGIN DD UNIT=SYSDA,SPACE=(TRK,1),RECFM=FB,LRECL=80
HPCLOGOU DD UNIT=SYSDA,SPACE=(CYL,(50,50)),RECFM=FBA,LRECL=133If the dynamic defaults are not sufficient, then you might want to preallocate these data sets. For example, you might want to use a unit name other than SYSDA, or you might have excessively large RECON data sets that require larger space allocations.