Can shared disk simulation using NBD will be useful in HACMP

Hello
I am doing a HACMP set-up using AiX e-server p5 series. The very basic requirement for the set-up is Shared disk storage like Fast-T and the related hardware. But because of lack of this hardware I want to use the simulated shared disk environment which is implemented using Network Block Device. So please let me know whether this scenario is of any use ?