I am about to purchase four new 4TB drives for my FreeNAS because my current four 3TB in Z-RAID volume is over 80%. To buy a little time, I have gone through and deleted a ton of files... over 1TB worth but when I look at my main volume, it doesn't appear that I have deleted anything. My assumption is that when I deleted the files, they went into a recycle bin somewhere but I can't seem to figure out where the recycle bin is so I can dump it. Any ideas as to how to take advantage of deleting the no longer needed files?