I'm investigating a way to reduce the Scheduled DB Backup size and discovered that most of the DB backup size is from "conf\CRSData\dc-crs\definitiondata\1.1\" (520MB over 550MB).

In there there is datas from 6-8 months ago. I'm not sure what it is (looks like patchs DB and so on). 

Is it possible to clean this folder? Do you have tips of things we can clean to reduce backup size?

Thanks

Sylvain