[ec2-user@namenode conf]$ hadoop dfsadmin -report
    Safe mode is ON
    Configured Capacity: 24956350464 (23.24 GB)
    Present Capacity: 19177766912 (17.86 GB)
    DFS Remaining: 19177652224 (17.86 GB)
    DFS Used: 114688 (112 KB)
    DFS Used%: 0%
    Under replicated blocks: 0
    Blocks with corrupt replicas: 0
    Missing blocks: 0
    
    -------------------------------------------------
    Datanodes available: 3 (3 total, 0 dead)
    
    Name: 172.31.28.203:50010
    Decommission Status : Normal
    Configured Capacity: 8318783488 (7.75 GB)
    DFS Used: 36864 (36 KB)
    Non DFS Used: 1919713280 (1.79 GB)
    DFS Remaining: 6399033344(5.96 GB)
    DFS Used%: 0%
    DFS Remaining%: 76.92%
    Last contact: Tue Apr 23 11:02:19 UTC 2019
    
    
    Name: 172.31.30.98:50010
    Decommission Status : Normal
    Configured Capacity: 8318783488 (7.75 GB)
    DFS Used: 40960 (40 KB)
    Non DFS Used: 1920548864 (1.79 GB)
    DFS Remaining: 6398193664(5.96 GB)
    DFS Used%: 0%
    DFS Remaining%: 76.91%
    Last contact: Tue Apr 23 11:02:19 UTC 2019
    
    
    Name: 172.31.17.175:50010
    Decommission Status : Normal
    Configured Capacity: 8318783488 (7.75 GB)
    DFS Used: 36864 (36 KB)
    Non DFS Used: 1938321408 (1.81 GB)
    DFS Remaining: 6380425216(5.94 GB)
    DFS Used%: 0%
    DFS Remaining%: 76.7%
    Last contact: Tue Apr 23 11:02:19 UTC 2019
    
    
    [ec2-user@namenode conf]$