How are we supposed to know the *correct* volume to select? For example, if I pick the original volume group I get the error. If I pick a second volume group I lose all my work - days of time. And, since my volumes are GONE, I also lose all my DATA. WTF!!! So, which option do I choose? Lose, or lose? Is there any win here?

To clarify, choosing the default group used, is for the settings and configuration files DSS uses. These settings 'must' be saved from the webgui prior to choosing a new 'default volume group', or you will need to reconfigure the appliance.
**NOTE: this does NOT reformat the volume.