When configuring FDM options PARALLEL and EMPTYASNULL with file masking they do not seem to make a difference.
The PARALLEL is not speeding up the file masking process.
There is no difference between setting EMPTYASNULL to Y or N
Release : 4.8
Component : CA Test Data Manager - Fast Data Masker
The options PARALLEL and EMPTYASNULL do apply to file masking. They are only meant for database table masking.