While I am specifically interested in Group Folders, the question also applies to other users spaces:
How can I find out how much of a Group Folder Quota is used with a shell script?
I know that I can SQL-fu the group folders mount point and then run e.g. a
du -hs <mountpoint>, but I assume that the info is somewhere stored in the database as well.
I am not scared of any shell/SQL-stuff.
Background is that I would like a munin-script to alert me when the folder nears “completion” and also work on a visualization of the current state.