Hi Frank,
there are about 40 files (for each table one) and the filesize is between 350 MB and 1 kb (depending on the tablesize).
The unload process takes about 40 minutes. But this time depends on the CPU type, we noticed. If you use a fast CPU, it will take a shorter time.
The we pass the unload files to the back up software (ADSM).
Best regards
Regina