Hy Tom
i reccomend the as Brian, just create the disk with f-disk, and manually add to pick0 without using d3_setup ( why because that installer some times bug the pick0), and star again D3
that is the fasted, quickist and safest way to increase space and ALWAYS be sure to add the new disk after the existing one.. if you change the other things can happen and as some old folks did in the past of creating a lot of small disks, since version 10.1 you can create big disk without problems
another thing avoid using LVM storages for D3 disks
@Brian Cram : Murphy on his chair facing the corner... kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk