diff --git a/controller/backup_controller.go b/controller/backup_controller.go
index 4e18cbb22e..db311d98e1 100644
--- a/controller/backup_controller.go
+++ b/controller/backup_controller.go
@@ -636,7 +636,17 @@ func (bc *BackupController) checkMonitor(backup *longhorn.Backup, volume *longho
 	if kubernetesStatus.PVCName != "" && kubernetesStatus.LastPVCRefAt == "" {
 		pvc, _ := bc.ds.GetPersistentVolumeClaim(kubernetesStatus.Namespace, kubernetesStatus.PVCName)
 		if pvc != nil {
-			storageClassName = *pvc.Spec.StorageClassName
+			if pvc.Spec.StorageClassName != nil {
+				storageClassName = *pvc.Spec.StorageClassName
+			}
+			if storageClassName == "" {
+				if v, exist := pvc.Annotations[corev1.BetaStorageClassAnnotation]; exist {
+					storageClassName = v
+				}
+			}
+			if storageClassName == "" {
+				bc.logger.Warnf("Failed to find the StorageClassName from the pvc %v", pvc.Name)
+			}
 		}
 	}
 
diff --git a/controller/volume_controller.go b/controller/volume_controller.go
index ec9e1ef8c5..c5301b27fd 100644
--- a/controller/volume_controller.go
+++ b/controller/volume_controller.go
@@ -3647,7 +3647,8 @@ func (c *VolumeController) syncPVCRecurringJobLabels(volume *longhorn.Volume) er
 	}
 
 	if !hasSourceLabel {
-		c.logger.Warnf("Ignoring recurring job labels on Volume %v PVC %v due to missing source label", volume.Name, pvc.Name)
+		c.logger.Debugf("Ignoring recurring job labels on Volume %v PVC %v due to missing source label", volume.Name, pvc.Name)
+
 		return nil
 	}
 
diff --git a/types/setting.go b/types/setting.go
index 69f0070ac2..2ee748cea2 100644
--- a/types/setting.go
+++ b/types/setting.go
@@ -1064,7 +1064,7 @@ var (
 		Type:        SettingTypeString,
 		Required:    true,
 		ReadOnly:    false,
-		Default:     "Debug",
+		Default:     "Info",
 	}
 
 	SettingDefinitionOfflineReplicaRebuilding = SettingDefinition{
diff --git a/webhook/resources/orphan/validator.go b/webhook/resources/orphan/validator.go
index 744da5fbd7..ff059f1cae 100644
--- a/webhook/resources/orphan/validator.go
+++ b/webhook/resources/orphan/validator.go
@@ -2,7 +2,6 @@ package orphan
 
 import (
 	"fmt"
-	"reflect"
 
 	admissionregv1 "k8s.io/api/admissionregistration/v1"
 	"k8s.io/apimachinery/pkg/runtime"
@@ -54,17 +53,12 @@ func (o *orphanValidator) Create(request *admission.Request, newObj runtime.Obje
 }
 
 func (o *orphanValidator) Update(request *admission.Request, oldObj runtime.Object, newObj runtime.Object) error {
-	oldOrphan := oldObj.(*longhorn.Orphan)
 	newOrphan := newObj.(*longhorn.Orphan)
 
 	if err := checkOrphanParameters(newOrphan); err != nil {
 		return werror.NewInvalidError(err.Error(), "")
 	}
 
-	if !reflect.DeepEqual(oldOrphan.Spec, newOrphan.Spec) {
-		return werror.NewInvalidError(fmt.Sprintf("orphan %v spec fields are immutable", oldOrphan.Name), "")
-	}
-
 	return nil
 }
 
@@ -83,6 +77,7 @@ func checkOrphanForReplicaDirectory(orphan *longhorn.Orphan) error {
 		longhorn.OrphanDiskName,
 		longhorn.OrphanDiskUUID,
 		longhorn.OrphanDiskPath,
+		longhorn.OrphanDiskType,
 	}
 
 	for _, param := range params {