It seems it is a moot point. All db hostnames seem to be interchangable. Thus if I make db_0 at mysql0.foobar.com and db_1 at mysql1.foobar.dreamhosters.com, I can access db_0 at mysql1.foobar.dreamhosters.com just as well. Is there any reason then to create more than one mysql subdomain? Just curious.
Thanks for reading,