DPM Cannot create a backup Error 0x80990ED0

I have a few VM's I have been unable to backup.  From what I have read it's an issue with the reserve volumes only being 350MB and have to be enlarged:

http://santas-workshop.blogspot.com/2014/05/implementing-new-dpm-solution-in-santas.html

My errors:

I have tried this and still no luck. Any help appreciated.