Drive #1
 83.8% used 
75.65 GB of 465.76 GB remaining

Drive #2
 99.5% used 
19.96 GB of 3725.9 GB remaining

Drive #3
 99.6% used 
14.14 GB of 3725.9 GB remaining

Drive #4
 77.7% used 
832.71 GB of 3725.9 GB remaining