I have read several items that asked the question along with others but this part never got answered directly that I noticed.
Is dwdatarp.exe still current with SCM2012? In addition when I run it to just collect the data it does not seem to quite match with what I find under
ADMIN—SETTINGS—Database Grooming. Are they complimentary?
I have been unable to find any doc that talks about them as one unified whole - managing the size of SQL dataset so this collection of data does not become a monster.