It applied the drivers succesfully - now that was simple.
Unfortunately the driver kit doesn't contain the necessary B320i Sata Raid controller driver "hpvsa-kmp-default-1.2.6-11.sles11sp2.x86_64.rpm".
After googling for a while I figured out that I might need to create a custom Installation Media with SLES SDK.
So that's what I did, I could succesfully implement all of the drivers but I could not sign it however. And that's a problem, because if the media is not signed it will display a notification before setup begins, preventing fully unattended progress.
Do you guys have any advice how I could add the driver to my SLES repository or could you think of any other workaround?