vdsm-client  --gluster-enabled GlusterHost logicalVolumeList
{
    "logicalVolumeList": [
        {
            "lv_free": 0,
            "lv_name": "root",
            "lv_size": 18249416704,
            "pool_lv": "",
            "vg_name": "rhel_rhel8-1"
        },
        {
            "lv_free": 0,
            "lv_name": "swap",
            "lv_size": 2147483648,
            "pool_lv": "",
            "vg_name": "rhel_rhel8-1"
        }
    ]
}