diff --git a/pkg/cloudmon/collectors/common/multiCloudMonUtils.go b/pkg/cloudmon/collectors/common/multiCloudMonUtils.go
index 8b9baae0c6..b5555292ec 100644
--- a/pkg/cloudmon/collectors/common/multiCloudMonUtils.go
+++ b/pkg/cloudmon/collectors/common/multiCloudMonUtils.go
@@ -636,7 +636,7 @@ func cloudproviderRunfunc(ctx context.Context, factory ICloudReportFactory, prov
 	session *mcclient.ClientSession) {
 	opt := o.Options
 	group, _ := errgroup.WithContext(ctx)
-	for i, _ := range ResMonTypeList {
+	for i := range ResMonTypeList {
 		resType := ResMonTypeList[i]
 		group.Go(func() error {
 			log.Errorf("cloudprovider: %s,operator: %s start report().", provider.Name, resType)
@@ -658,7 +658,8 @@ func CustomizeRunFunc(ctx context.Context, factory ICloudReportFactory, provider
 	opt := o.Options
 	err := factory.NewCloudReport(provider, session, &opt.ReportOptions, "").Report()
 	if err != nil {
-		log.Errorf("provider: %s report metric err: %v", provider.Name, err)
+		// provider maybe nil
+		log.Errorf("provider: %v report metric err: %v", provider, err)
 		return
 	}
 	log.Errorf("operator: %s report() end.", factory.GetId())
diff --git a/pkg/monitor/dbinit/metric_dbinit.go b/pkg/monitor/dbinit/metric_dbinit.go
index c273decfd3..77c042f45a 100644
--- a/pkg/monitor/dbinit/metric_dbinit.go
+++ b/pkg/monitor/dbinit/metric_dbinit.go
@@ -164,6 +164,12 @@ func init() {
 			newMetricFieldCreateInput("write_bytes", "Bytes write", monitor.METRIC_UNIT_BYTE, 6),
 		})
 
+	// vm_disk
+	RegistryMetricCreateInput("vm_disk", "Guest disk", monitor.METRIC_RES_TYPE_GUEST,
+		monitor.METRIC_DATABASE_TELE, 3, []monitor.MetricFieldCreateInput{
+			newMetricFieldCreateInput("used_percent", "Used vm disk rate", monitor.METRIC_UNIT_PERCENT, 1),
+		})
+
 	// vm_mem
 	RegistryMetricCreateInput("vm_mem", "Guest memory", monitor.METRIC_RES_TYPE_GUEST,
 		monitor.METRIC_DATABASE_TELE, 2, []monitor.MetricFieldCreateInput{
diff --git a/pkg/util/influxdb/metrics.go b/pkg/util/influxdb/metrics.go
index 4383d03b6d..f8e2a8eb7b 100644
--- a/pkg/util/influxdb/metrics.go
+++ b/pkg/util/influxdb/metrics.go
@@ -50,10 +50,12 @@ func (m *SMetricData) Line() string {
 
 	line := strings.Builder{}
 	line.WriteString(m.Name)
+	keys := map[string]bool{}
 	for i := range m.Tags {
-		if len(m.Tags[i].Key) > 0 && len(m.Tags[i].Value) > 0 {
+		if _, ok := keys[m.Tags[i].Key]; !ok && len(m.Tags[i].Key) > 0 && len(m.Tags[i].Value) > 0 {
 			line.WriteByte(',')
 			line.WriteString(m.Tags[i].String())
+			keys[m.Tags[i].Key] = true
 		}
 	}
 	line.WriteByte(' ')