diff --git a/images/webhooks/src/handlers/nscValidator.go b/images/webhooks/src/handlers/nscValidator.go
index eef659a..7ac2d46 100644
--- a/images/webhooks/src/handlers/nscValidator.go
+++ b/images/webhooks/src/handlers/nscValidator.go
@@ -7,7 +7,6 @@ import (
 	"github.com/slok/kubewebhook/v2/pkg/model"
 	kwhvalidating "github.com/slok/kubewebhook/v2/pkg/webhook/validating"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/klog/v2"
 	mc "webhooks/api"
 )
@@ -38,24 +37,10 @@ func NSCValidate(ctx context.Context, arReview *model.AdmissionReview, obj metav
 		v3presents = true
 	}
 
-	for _, itemClass := range listClasses.Items {
-		if itemClass.Name == nsc.Name {
-			continue
-		}
-		if itemClass.Spec.Connection.NFSVersion == "3" {
-			v3presents = true
-		}
-	}
-
 	klog.Infof("NFSv3 NFSStorageClass exists: %t", v3presents)
 
 	nfsModuleConfig := &mc.ModuleConfig{}
 
-	err = cl.Get(ctx, types.NamespacedName{Name: csiNfsModuleName, Namespace: ""}, nfsModuleConfig)
-	if err != nil {
-		klog.Fatal(err)
-	}
-
 	if value, exists := nfsModuleConfig.Spec.Settings["v3support"]; exists && value == true {
 		v3enabled = true
 	} else {
diff --git a/monitoring/prometheus-rules/nfsv3-storage-class-without-nfsv3-support.yaml b/monitoring/prometheus-rules/nfsv3-storage-class-without-nfsv3-support.yaml
new file mode 100644
index 0000000..9669b38
--- /dev/null
+++ b/monitoring/prometheus-rules/nfsv3-storage-class-without-nfsv3-support.yaml
@@ -0,0 +1,40 @@
+- name: kubernetes.pv.settings_check
+  rules:
+    - alert: NotSupportedNFSv3StorageClass
+      expr: # count(kube_persistentvolume_labels{label_storage_deckhouse_io_linstor_settings_mismatch="true", label_storage_deckhouse_io_linstor_settings_mismatch_ignore!="true"}) > 0
+      for: 5m
+      labels:
+        severity_level: # "4"
+        tier: cluster
+      annotations:
+        plk_markup_format: # "markdown"
+        plk_protocol_version: "1"
+#       plk_create_group_if_not_exists__d8_drbd_device_health: "ReplicatedPVSettingsCheck,tier=~tier,prometheus=deckhouse,kubernetes=~kubernetes"
+#       plk_grouped_by__d8_drbd_device_health: "ReplicatedPVSettingsCheck,tier=~tier,prometheus=deckhouse,kubernetes=~kubernetes"
+        summary: Replicated PVs has incorrect settings
+        description: |
+#          There are persistent volumes in the cluster that were created before migration to ReplicatedStorageClass.
+#          You can recreate it, or add the label storage.deckhouse.io/linstor-settings-mismatch-ignore!=true to ignore it for the PV.
+#          Please note that in the future, when transitioning from LINSTOR to a new controller, the settings for all such PVs will be automatically modified to match the current StorageClass settings.
+#
+#          You can view all of such PV with command
+#          `kubectl get pv -l storage.deckhouse.io/linstor-settings-mismatch=true,storage.deckhouse.io/linstor-settings-mismatch-ignore!=true`
+#
+#          Also, you can add label for all incorrect PVs
+#          `kubectl label pv -l storage.deckhouse.io/linstor-settings-mismatch=true storage.deckhouse.io/linstor-settings-mismatch-ignore=true`
+    - alert: #ReplicatedPVWithIncorrectQuorumMinimumRedundancy
+      expr: # count(kube_persistentvolume_labels{label_storage_deckhouse_io_unable_to_set_quorum_minimum_redundancy="true"}) > 0
+      for: 5m
+      labels:
+        severity_level: "3"
+        tier: cluster
+      annotations:
+#        plk_markup_format: "markdown"
+#        plk_protocol_version: "1"
+#        plk_create_group_if_not_exists__d8_drbd_device_health: "ReplicatedPVSettingsCheck,tier=~tier,prometheus=deckhouse,kubernetes=~kubernetes"
+#        plk_grouped_by__d8_drbd_device_health: "ReplicatedPVSettingsCheck,tier=~tier,prometheus=deckhouse,kubernetes=~kubernetes"
+        summary: # Replicated PVs has incorrect quorum-minimum-redundancy setting
+        description: |
+#          There are persistent volumes in the cluster that has incorrect quorum-minimum-redundancy setting.
+#
+#          Please, contact tech support for assistance.
\ No newline at end of file