Inventory Storage Overview API

{
"overview":{
    "device_count": 20,
    "disk_count": 30,
    "partition_count": 56,
    "volume_count": 110,
    "total_capacity": 11520,
    "used": 1561,
    "free": 9959,
    "disk_used": "13.5%"
    }
"sites":[],
"hostnames":["DAGOMC-TEST","DAGOMC01","DAGOMC03"]
}