For NodeWeaver 11 you'll need to request a new key if your licenses are covered by software maintenance.
If you have the 32G RAM version of the HyperCube you need to provide an extra boot drive to benefit from all of the SSDs in the system.
Best solution would be to use a good USB drive where to flash the 11.0 firmware (like sandisk cruzer fit/ultra fit, or even better an SLC USB key).
You'll need to need to completely wipe your drives (at least the SSDs) by zero filling with dd command
dd if=/dev/zero of=/dev/sdX bs=8M to clean the traces of the previous firmware and avoid conflicts.