sample_user_config.json

{
    "extra_cmdline": {
        "pid": "0x1666",
        "vid": "0x0951",
        "sn": "VOG51NWJDWP6S",
        "mac1": "FCAA14521031"
        "DiskIdxMap": "00",
        "SataPortMap": "6",
        "SasIdxMap":  "0"
    },
    "synoinfo": {},
    "ramdisk_copy": {},
    "extensions": []
}