diff --git a/values.yaml b/values.yaml
index 4308f6f..0ca8f7f 100644
--- a/values.yaml
+++ b/values.yaml
@@ -4,7 +4,42 @@ image:
   tag: "18.1-alpine3.22"
   pullPolicy: IfNotPresent
 
-replicaCount: 1
+# レプリケーション設定
+replication:
+  enabled: false
+  replicaCount: 2
+  synchronousCommit: "on"
+  numSynchronousReplicas: 1
+
+# プライマリ設定
+primary:
+  resources:
+    limits:
+      cpu: 1000m
+      memory: 1Gi
+    requests:
+      cpu: 500m
+      memory: 512Mi
+  persistence:
+    enabled: true
+    storageClass: ""
+    accessMode: ReadWriteOnce
+    size: 8Gi
+
+# レプリカ設定
+replica:
+  resources:
+    limits:
+      cpu: 800m
+      memory: 1Gi
+    requests:
+      cpu: 400m
+      memory: 512Mi
+  persistence:
+    enabled: true
+    storageClass: ""
+    accessMode: ReadWriteOnce
+    size: 8Gi
 
 service:
   type: ClusterIP
@@ -13,20 +48,23 @@ service:
 postgres:
   database: mydb
   user: postgres
-  # パスワードは必ずSecretで管理してください
+  replicationUser: replicator
   existingSecret: ""
   passwordKey: "postgres-password"
+  replicationPasswordKey: "replication-password"
 
-persistence:
-  enabled: true
-  storageClass: ""
-  accessMode: ReadWriteOnce
-  size: 8Gi
-
-resources:
-  limits:
-    cpu: 1000m
-    memory: 1Gi
-  requests:
-    cpu: 500m
-    memory: 512Mi
+# バックアップ設定
+backup:
+  enabled: false
+  schedule: "0 2 * * *"  # 毎日午前2時
+  retention: 7  # 保持日数
+  storage:
+    storageClass: ""
+    size: 20Gi
+  resources:
+    limits:
+      cpu: 500m
+      memory: 512Mi
+    requests:
+      cpu: 250m
+      memory: 256Mi