My apologies
Too much coffee when I first read your post.
You can use the "vxdmpadm" utility to
list all controllers connected to disks on the host or paths connected to a particular controller
or paths under a DMP device, etc.
You may want to check it out. It's been a while
since I've used it so I can't recall all of the
functionality of the admin utility.
Again, sorry about the "mis-read" earlier.