I’d go for a fresh thread, make sure to specify as much of the problem as possible, including possibly deleting snapshots that were actually your docker containers: Rock-ons are docker wrappers and docker uses btrfs snapshots to manage it’s layers on Rockstor. I think we have a work around for this situation though but can pop that in hopefully in context against the new thread and so should make for an easier find for others on the forum rather than being buried deep in this now pretty long thread which concerns the system drive out of space thing.
Cheers.