Subsystem: capacityUsableSubsystem,
		Name:      freeBytes,
		Help:      "Total free usable capacity online in the cluster",
		Type:      gaugeMetric,
	}
}

func getNodeDriveAPILatencyMD() MetricDescription {
	return MetricDescription{
		Namespace: nodeMetricNamespace,
		Subsystem: driveSubsystem,
		Name:      latencyMicroSec,