Implementation

Use the following steps to implement real-time data set stacking under JES3:

1. Edit the ASMIAT06 member in the CTT JCL library and submit the job. When the job is submitted, the ASMIAT06 member compiles and links JES3 Exit IATUX06. Exit IATUX06 is called by JES3 when each DD statement is processed.
2. Copy the new IATUX06 module to the JES3 exits library (SYS1.JES3LIB).
3. To activate the new exit, stop and restart JES3 using Hot Start (an IPL is not required).