The method that CICS® VT uses to intercept VSAM calls from your batch application programs is explained in The runtime component. To enable call interception, update the DD statements that define the VSAM base cluster and alternate index data sets. Below is the DD statement before and after CICS VT migration for the KSDS data set used earlier in this chapter:
Before:
//KSDS001 DD DSN=VID.VIDKSDS,DISP=SHR
//KSDSAIX DD DSN=VID.VIDKSDS.AIX,DISP=SHR
After:
//KSDS001 DD SUBSYS=(ssi,db2id,DIM name)
//KSDSAIX DD SUBSYS=(ssi,db2id,AIX DIM name)
The parameter values for the SUBSYS statement are:
Parameter | Description |
---|---|
ssi | The name of the VSAM subsystem interface that you specified at CICS VT installation. See Installing the batch subsystem. |
db2id | The subsystem ID of the DB2® table containing the migrated data. |
DIM name | The name of the DIM driver. This is also the ![]() ![]() |
AIX® DIM name | The name of the DIM driver. This is also the ![]() ![]() |
You can override the default plan name. See Overriding the default DB2 plan name. Ensure that the batch job user ID has the required authority to execute the DB2 plan.