When trying to copy data from the old secfile to the new one, we receive the following message,
TSSMAIND and got U1520 abend
Release : 16.0
Component : CA Top Secret for z/OS
For the U1520
The VSAMFILE FILE ALREADY INITIALIZED is issued when TSSMAINS been run more than once (unsuccessfully or successfully) using the same VSAMFILE DD dataset.
You can only run TSSMAINS once using the same VSAMFILE DD dataset. If there is a need to run it again, you must delete the VSAMFILE dataset and recreate it before running TSSMAINS again.