diff --git a/helm/README.md b/helm/README.md
index 39aba9f8..924da3ab 100644
--- a/helm/README.md
+++ b/helm/README.md
@@ -21,6 +21,8 @@ RustFS helm chart supports **standalone and distributed mode**. For standalone m
 | secret.rustfs.access_key | RustFS Access Key ID | `rustfsadmin` |
 | secret.rustfs.secret_key | RustFS Secret Key ID | `rustfsadmin` |
 | storageclass.name | The name for StorageClass. | `local-path` |
+| storageclass.dataStorageSize | The storage size for data PVC. | `256Mi` |
+| storageclass.logStorageSize | The storage size for log PVC. | `256Mi` |
 | ingress.className | Specify the ingress class, traefik or nginx. | `nginx` |
 
 
diff --git a/helm/rustfs/Chart.yaml b/helm/rustfs/Chart.yaml
index 7847f7ac..2cc92efa 100644
--- a/helm/rustfs/Chart.yaml
+++ b/helm/rustfs/Chart.yaml
@@ -21,4 +21,4 @@ version: 1.0.3
 # incremented each time you make changes to the application. Versions are not expected to
 # follow Semantic Versioning. They should reflect the version the application is using.
 # It is recommended to use it with quotes.
-appVersion: "1.0.0-alpha.72"
+appVersion: "1.0.0-alpha.73"
diff --git a/helm/rustfs/templates/pvc.yaml b/helm/rustfs/templates/pvc.yaml
index 735d3302..1cab744d 100644
--- a/helm/rustfs/templates/pvc.yaml
+++ b/helm/rustfs/templates/pvc.yaml
@@ -8,7 +8,7 @@ spec:
   storageClassName: {{ .Values.storageclass.name }}
   resources:
     requests:
-      storage: {{ .Values.storageclass.size }}
+      storage: {{ .Values.storageclass.dataStorageSize }}
 
 ---
 apiVersion: v1
@@ -20,5 +20,5 @@ spec:
   storageClassName: {{ .Values.storageclass.name }}
   resources:
     requests:
-      storage: {{ .Values.storageclass.size }}
+      storage: {{ .Values.storageclass.logStorageSize }}
 {{- end }}
\ No newline at end of file
diff --git a/helm/rustfs/templates/statefulset.yaml b/helm/rustfs/templates/statefulset.yaml
index 48295367..931cfff4 100644
--- a/helm/rustfs/templates/statefulset.yaml
+++ b/helm/rustfs/templates/statefulset.yaml
@@ -122,7 +122,7 @@ spec:
         storageClassName: {{ $.Values.storageclass.name }}
         resources:
           requests:
-            storage: {{ $.Values.storageclass.size}}
+            storage: {{ $.Values.storageclass.logStorageSize}}
     {{- if eq (int .Values.replicaCount) 4 }}
     {{- range $i := until (int .Values.replicaCount) }}
     - metadata:
@@ -132,7 +132,7 @@ spec:
         storageClassName: {{ $.Values.storageclass.name }}
         resources:
           requests:
-            storage: {{ $.Values.storageclass.size}}
+            storage: {{ $.Values.storageclass.dataStorageSize}}
     {{- end }}
     {{- else if eq (int .Values.replicaCount) 16 }}
     - metadata:
@@ -142,6 +142,6 @@ spec:
         storageClassName: {{ $.Values.storageclass.name }}
         resources:
           requests:
-            storage: {{ $.Values.storageclass.size}}
+            storage: {{ $.Values.storageclass.dataStorageSize}}
     {{- end }}
 {{- end }}
diff --git a/helm/rustfs/values.yaml b/helm/rustfs/values.yaml
index 3cf2f8ad..17d23c43 100644
--- a/helm/rustfs/values.yaml
+++ b/helm/rustfs/values.yaml
@@ -147,6 +147,7 @@ affinity: {}
 
 storageclass:
   name: local-path
-  size: 256Mi
+  dataStorageSize: 256Mi
+  logStorageSize: 256Mi
 
 extraManifests: []