I think I understand now ...
PKH, are you saying that I should disable the threshold (as opposed to setting it to 0) and the drive will fill up and overwrite as Ken says is possible? Or should I just leave a comfortable margin on the disk (say 30%) and try to optimize the OPP to fit within that margin?
Is there any difference in "threshold" and "reserve", as seen in older versions of BE's B2D settings (like version 8.5)?
I'm trying Ken's settings currently to see if they work before committing anything to the production environment.
Thanks again to both of you for your knowledgeable input. I hope I didn't stir the pot too much.
Joe