[
    {
        "alias": "Server1",
        "hostgroup_worst_service_state": "0",
        "status_history": {
            "status": [
                "0",
                "2",
                "0",
                "0"
            ]
        }
    },
    {
        "alias": "Server2",
        "hostgroup_worst_service_state": "0",
        "status_history": {
            "status": [
                "0",
                "0",
                "0",
                "0"
            ]
        }
    },
    {
        "alias": "Server3",
        "hostgroup_worst_service_state": "0",
        "status_history": {
            "status": [
                "1",
                "1",
                "1",
                "0"
            ]
        }
    }
]

$.each(data, function(i, item) {
   console.log(item.alias)
   console.log(item.hostgroup_worst_service_state)
}

["0","2","0","0"]
["0","0","0","0"]
["1","1","1","1"]

$.each(data, function () {
  console.log(this.status_history.status);
});

$.each(data, function (i, item) {
  console.log(item.status_history.status);
});

var arr = $.map(data, function (el) {
  return [ el.status_history.status ];
});

var result = [];

for(var i = 0; i < data.length; i++) {
    result.push(data[i].status_history.status);
}

for(i=0;i<data.length;i++)
{
 console.log(data.status_history.status);
}