Add a new metric smartctl_device_error_log_count for the SMART error log counts.

metrics.go

@@ -188,4 +188,16 @@ var (
 		},
 		nil,
 	)
+	metricDeviceErrorLogCount = prometheus.NewDesc(
+		"smartctl_device_error_log_count",
+		"Device SMART error log count",
+		[]string{
+			"device",
+			"model_family",
+			"model_name",
+			"serial_number",
+			"error_log_type",
+		},
+		nil,
+	)
 )

smartctl.go

@@ -52,6 +52,7 @@ func (smart *SMARTctl) Collect() {
 	smart.mineDeviceSCTStatus()
 	smart.mineDeviceStatistics()
 	smart.mineDeviceStatus()
+	smart.mineDeviceErrorLog()
 }
 
 func (smart *SMARTctl) mineExitStatus() {
@@ -312,3 +313,18 @@ func (smart *SMARTctl) mineDeviceStatus() {
 		smart.device.serial,
 	)
 }
+
+func (smart *SMARTctl) mineDeviceErrorLog() {
+	for logType, status := range smart.json.Get("ata_smart_error_log").Map() {
+		smart.ch <- prometheus.MustNewConstMetric(
+			metricDeviceErrorLogCount,
+			prometheus.GaugeValue,
+			status.Get("count").Float(),
+			smart.device.device,
+			smart.device.family,
+			smart.device.model,
+			smart.device.serial,
+			logType,
+		)
+	}
+}