this doesn't help! I want something like this setup:
One Volume (e.g. 15GB) and several qtrees in this volume.
All volumes together should never use more than 10GB but I don't want to set quota to each qtree. Also one qtree should be able to use 7GB another one 2GB and some more, each less than a view 100MB. I just dont want to care which qtree uses how much space - i just want to protect the system from having full volumes.
Re: one quota per volume not default quota and not per qtree?
I now spoke to two different NetApp Engineers, who told me, that this is not possible.
For using this with CIFS Shares I should: create a volume with one qtree (quota to this qtree) and place additional folders in this qtree/share. So build the multiple "shares" with folders on cifs level.
This works but I have to migrate tons of data to solve my problem.