Better yet, backup that data and try it with the exact hardware that you are running now. Its not that much space to back it up. .... Edit... I just read that it is production. Hope you can take the downtime to do it. Do you know the exact model? There are a lot of different configs for those servers from what I see on HP's sight. This should be possible to do. How else could the hardware handle a backplane failure or something like that. A disk is not the only thing that can fail in a RAID system.