diff --git a/helm-charts/dbrepo/Chart.tpl.yaml b/helm-charts/dbrepo/Chart.tpl.yaml
index 5ae1d128073c61b2efabc9abd62e9d95c514e103..f6e08559f69af99aafa0710a5d30a61cd8df7fcd 100644
--- a/helm-charts/dbrepo/Chart.tpl.yaml
+++ b/helm-charts/dbrepo/Chart.tpl.yaml
@@ -42,10 +42,6 @@ dependencies:
     alias: brokerService
     version: 12.5.1
     repository: https://charts.bitnami.com/bitnami
-  - name: fluent-bit
-    alias: logservice
-    version: 0.40.0
-    repository: https://fluent.github.io/helm-charts
   - name: seaweedfs
     alias: storageservice
     version: 3.59.4
diff --git a/helm-charts/dbrepo/templates/data-db/pvc.yaml b/helm-charts/dbrepo/templates/data-db/pvc.yaml
index 1eea5fa393717908dc189c1144d89d5a2107f14b..ef89c2ad56aba67be2578acb4b8024539feab42c 100644
--- a/helm-charts/dbrepo/templates/data-db/pvc.yaml
+++ b/helm-charts/dbrepo/templates/data-db/pvc.yaml
@@ -3,6 +3,7 @@ kind: PersistentVolumeClaim
 metadata:
   name: data-db-shared
 spec:
+  storageClassName: {{ .Values.dataDbSidecar.persistence.storageClass }}
   accessModes:
     - ReadWriteMany
   resources:
diff --git a/helm-charts/dbrepo/values.yaml b/helm-charts/dbrepo/values.yaml
index 042116f461ac3c2a717f445b25d49cd47f1aa592..4379910ee8abf5231c6b009e600f0280f97b3db5 100644
--- a/helm-charts/dbrepo/values.yaml
+++ b/helm-charts/dbrepo/values.yaml
@@ -152,6 +152,10 @@ dataDb:
     size: 10Gi
   replicaCount: 1 # uneven
 
+dataDbSidecar:
+  persistence:
+    storageClass: ""
+
 searchdb:
   fullnameOverride: search-db
   host: search-db