In preparation for migrating my server data to a new machine I'm trying to clean up some data I don't need.  My pool when from 11.6 Tib to 15 in one day.  I presumed it was from snapshots I was playing with to get ready for the migration.  After deleting the files and all my snapshots I didn't free up much space.  All 3000 snapshots are gone but 9 which are related to my iocage jails which I'm guessing are created automatically.  What am I missing as I would prefer to transfer as little data as possible?
Do I have to reboot?
	
		
			
		
		
	
			
			Do I have to reboot?