Drive #1
 69.4% used 
142.74 GB of 465.76 GB remaining

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

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

Drive #4
 68.6% used 
1170.94 GB of 3725.9 GB remaining