@<1523701070390366208:profile|CostlyOstrich36> Thanks for your reply, unfortunately this is exactly the problem: I simply cannot explain that the storage filled up all of a sudden, so I have no idea what to delete. At least 2/3 of the available space was filled during a time where we didn't run any experiments whatsoever, we only added a bunch of datasets. AFAIK there are no logs/metrics/plots involved, and the data itself is always stored locally.
I tried to contact support but they where not willing to help me since I don't pay, they did mention however that the dataset previews are sharing that storage as well. So now I'm wondering how I can remove those previews? Obviously I don't want to remove the whole Task associated with the dataset, since I still want to be able to use the datasets.