// Send whitespace and keep connection open
				if _, err := w.Write([]byte(" ")); err != nil {
					return
				}
				w.(http.Flusher).Flush()
			case hr := <-respCh:
				switch hr.apiErr {
				case noError:
					if started {
						if _, err := w.Write(hr.respBytes); err != nil {
							return
						}
						w.(http.Flusher).Flush()
					} else {
						writeSuccessResponseJSON(w, hr.respBytes)
					}

| `minio_node_drive_errors_timeout`      | Total number of drive timeout errors since server start             |
| `minio_node_drive_errors_ioerror`      | Total number of drive I/O errors since server start                 |
| `minio_node_drive_errors_availability` | Total number of drive I/O errors, timeouts since server start       |

		Type:      counterMetric,
	}
}

func getNodeDriveIOErrorsMD() MetricDescription {
	return MetricDescription{
		Namespace: nodeMetricNamespace,
		Subsystem: driveSubsystem,
		Name:      "errors_ioerror",
		Help:      "Total number of drive I/O errors since server start",
		Type:      counterMetric,
	}
}

func getNodeDriveAvailabilityErrorsMD() MetricDescription {
	return MetricDescription{