Fulltext setup on a separate server

Hello guys,
Holliday in germany today, I hope someone here can help me  ;)
I'm currently setting up a new Docuware 7.1 platform, based on 3 servers (MSSQL, Front&BackEnd, Fulltext).
I'm facing a problem setting up the Fulltext, as the setup ask me the database name ("Nom"), but the database was not created during Front&BackEnd server setup(only chossed these option).
Tried with blank name (hoping setup will create a default), tried with "dwfulltext", tried to create first the db on sql, no way ...
Do you have any idea how to proceed this step ? (see attached screenshot)
 

Ok, thanks to Laurent, we have used dwsystem as database name and it is working. Maybe this new setup should be more documented.