my situation is like this

I have a system with 15 hard disks. each disk is 250 GB
I have been modifying the anaconda runtime installer to suit my specifications and almost through with it. but one problem

I need to initialize the the first 8GB of each of these 15 disks during installation
can anyone give me a method of how to proceed any function if available since i dont want to go about in a round about way in initializing them

any idea how to proceed will be enough