[Zope] Data.fs

Hi, I´ve got a big problem with our Data.fs! The Size is >1,9GB and shortly our System will crash again.... :( Can I split the Data.fs in several pieces? Or can Zope work with only one Data.fs? I don´t understand that our Data.fs increases, though nobody works on Zope, because I have set the permissions that nobody can create or modifie a Document! Can somebody help me? Please! :) Regards Steven Meyer