Ok let me justify my first comment. I don't know a thing about Multipath and storage in Linux besides a very general Idea about how they work. I use LVM groups on my server. But besides knowing how to basically manipulate my storage settings I would have no clue how to compile the sucker with correct depends in my current kernel.LVM2 is not so bad.
My original comment was out of fear. Having broken things many times Its ok to be scared now and then.