add subdisk in vinum concat

[Tobias Roth]

Hi

I was just wondering if it's possible to add another subdisk to my
vinum concat without losing the existing data, and if so, how.
Here is my vinum.conf:

drive 9GBSCSI  device /dev/da0s2
drive 16GBATA  device /dev/ad0
drive 30GBATA  device /dev/ad2

volume storage
  plex org concat
  sd length 0 drive 9GBSCSI
  sd length 0 drive 16GBATA
  sd length 0 drive 30GBATA

It looks like I can simply add a new disk. The problem I see is the
newfs'ing. All the docs I found say to newfs the whole storage, not
individual subdisks. Which, of course, would make me lose my data.

Thanks for any help, t.