diff --git a/pkg/hostman/storageman/core.go b/pkg/hostman/storageman/core.go
index 13ba2bb027..8282ce34c9 100644
--- a/pkg/hostman/storageman/core.go
+++ b/pkg/hostman/storageman/core.go
@@ -347,7 +347,7 @@ func StartSyncStorageSizeTask(interval time.Duration) {
 		manager := GetManager()
 		for i := 0; i < len(manager.Storages); i++ {
 			iS := manager.Storages[i]
-			if iS.StorageType() == api.STORAGE_LOCAL {
+			if iS.StorageType() == api.STORAGE_LOCAL || iS.StorageType() == api.STORAGE_RBD {
 				err := iS.SyncStorageSize()
 				if err != nil {
 					log.Errorf("sync storage %s size failed: %s", iS.GetStorageName(), err)
diff --git a/pkg/hostman/storageman/storage_rbd.go b/pkg/hostman/storageman/storage_rbd.go
index b41aacafa2..48bcc07948 100644
--- a/pkg/hostman/storageman/storage_rbd.go
+++ b/pkg/hostman/storageman/storage_rbd.go
@@ -606,6 +606,20 @@ func (s *SRbdStorage) getCapacity() (*sCephCapacity, error) {
 	return ret, nil
 }
 
+func (s *SRbdStorage) SyncStorageSize() error {
+	content := jsonutils.NewDict()
+	capacity, err := s.getCapacity()
+	if err != nil {
+		return errors.Wrapf(err, "getCapacity")
+	}
+	content.Set("capacity", jsonutils.NewInt(int64(capacity.CapacitySizeByte/1024/1024)))
+	content.Set("actual_capacity_used", jsonutils.NewInt(int64(capacity.UsedCapacitySizeByte/1024/1024)))
+	_, err = modules.Storages.Put(
+		hostutils.GetComputeSession(context.Background()),
+		s.StorageId, content)
+	return errors.Wrapf(err, "storage update")
+}
+
 func (s *SRbdStorage) SyncStorageInfo() (jsonutils.JSONObject, error) {
 	content := map[string]interface{}{}
 	if len(s.StorageId) > 0 {