Not sure if I can answer this, but will give it a try.
First, are you going to setup an IBAY and then have this IBAY be represented on the new Drive?
1) If so, create an IBAY as per the normal procedure.
2) Login to your server as root, using a connected PC or directly if you have a monitor, keyboard attached.
3) create a folder on your new drive with the same name as the IBAY you created.
4) go to the IBAY in the /home/e-smith/files/ibays folder and note the file permissions and groups for the IBAY. You will need to duplicated these on the new directory you created.
5) copy all the files from your /home/e-smith/files/ibay/xxxxbay directory to the new directory on your larger drive.
6) delete the IBAY directory in the /home/e-smith/files/ibay/ directory.
7) create a link to the new directory with ln -s /mnt/NEWDRIVE /home/e-smith/files/xxxxbay
That should work, that is how I did mine. Now your IBAY will be accessable from your network but physically reside on the new bigger hdd.
Darin