Thanks, your information was helpful. I have moved the Commserve to new hardware when upgrading and as I can recall it's similiar to what you describe. I was confused when I came across the link I posted for creating a standby commserve.
I think I may understand now, the instructions for building a standby would be if you have the license that allows you to have more than one commserve name - so you can fail-over when needed.
If you don't have the license, then you would do as you describe, if your hardware is down you can restore the DR data to the standby equipment.
Does that sound correct?