Not sure why you want to do that, but you can bind a volume to a member, assuming you have enough space.  It can be done at the CLI.  GrpName>volume select bind  Make sure that you still have at least 10% free space on that member after doing this.  You will also potentially impact the storage tiering algorithms ability to balance IO.  Regards, 
In a multi-member group I very much want to take advantage of performance load balancing for the majority of volumes, but there are some exceptions where I absolutely want to pin 100% of specific volumes to specific member arrays. I know this can be done by setting each member up with a different RAID configuration and then setting the volume RAID preference, but this seems like the wrong approach.  What's the right way?
Volume pinning in a multi-member 5.1.2 group?