docs: function getSysInfo(callback) {
  	if (process.platform === 'windows') return;
    var reData = getBasicInfo();
    exec('iostat ', function(err, output) {
  		if (!!err) {
  			console.error('getSysInfo failed! ' + err.stack);
  		} else {
  			reData.iostat = format(output);
  		}
  		callback(reData);
    });
  }