During installation, the installer prompts you to identify the primary and overflow file directories that RAPStore uses to write market data messages before it loads the database. The location of these directories depends on the type of install you perform.
$RAP/RAPStoreSubscriber/files/primary $RAP/RAPStoreSubscriber/files/overflow
If you ran a Custom or Express install, you can create the primary or overflow directories at any location. The location of these directories should match the values on your worksheet, and must match the location you identify during the install.