获取机柜空间

{
    "success": true,
    "units": [
        {
            "type": "string",
            "relid": 0,
            "metadata": {},
            "location": {},
            "spaces": {
                "1": {
                    "server_id": 0,
                    "server_name": "string",
                    "power_status": "string",
                    "spaces_id": 0
                }
            },
            "hardware": {
                "id": 0,
                "name": "string",
                "row": 0,
                "node_num": 0,
                "size": 0
            },
            "id": 0
        }
    ]
}