The question was how to check out all versions of all files in the project's repository.
Release : 12.6
Component : CA HARVEST SCM DATA STORES (DATABASE & MIGRATION)
You would need to set up a script that would execute the "hsv" command to generate a list of all versions, then use the "hco" command to check the versions out, one-by-one. With each version you check out you would need to rename the file so that the version number is reflected in the file's name.