Please find the following KB that contain a PDF file that should help you how to setup your DSSv6:
http://kb.open-e.com/How-to-upgrade-to-DSS-V6_712.html

And did you create a 2GB LUN so you can install DSSv6 on it, and keep the other storage size for your data? You may install DSSv6 on a USB flash memory and test it on your system to be sure that your system is working fine.