[ovirt-users] Snapshot deletion gone horribly wrong - Urgent

Hi, I'm trying to delete a 1TB snapshot on a store with 1.5TB free space. should be more than enough and the engine didn't complain. The snapshot to delete is the only snapshot for this VM. I started snapshot deletion a couple of hours ago. ovirt then started filling up the store. I'm sure it happened because of the snapshot deletion. I have seen this many times when deleting snapshots. Now I have a couple of KBytes left on the store and the snapshot is marked as broken. And I cannot delete the snapshot because of not enough free space. Is there a way to alter the database and then delete the snapshot files by hand? I know the files that are the snapshots and could delete them but then the vm wouldn't start because it is missing the files. Cheers, Stefan