diff --git a/.env.example b/.env.example
index 3a82bc85..db01dd41 100644
--- a/.env.example
+++ b/.env.example
@@ -10,6 +10,8 @@ DB_HOST=postgres
 DB_USER=
 DB_PASSWORD=
 DB_NAME=report_db
+# DB 데이터 저장 경로 (호스트 바인드 마운트, 기본값 /data/postgres)
+DB_DATA_DIR=/data/postgres
 
 # Admin Account
 ADMIN_USER=
diff --git a/backend/server.js b/backend/server.js
index 0df21c1b..72bd471d 100644
--- a/backend/server.js
+++ b/backend/server.js
@@ -248,7 +248,10 @@ sequelize
       );
     }
   })
-  .catch((err) => console.log("PostgreSQL Connection/Sync Error:", err));
+  .catch((err) => {
+    console.error("PostgreSQL Connection/Sync Error:", err);
+    process.exit(1);
+  });
 
 // Auth Middleware
 const authenticateToken = (req, res, next) => {
diff --git a/docker-compose.yml b/docker-compose.yml
index 4acda645..43243e0a 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -10,7 +10,7 @@ services:
     expose:
       - "5432"
     volumes:
-      - postgres-data:/var/lib/postgresql/data
+      - ${DB_DATA_DIR:-/data/postgres}:/var/lib/postgresql/data
     networks:
       - app-network
     healthcheck:
@@ -63,7 +63,4 @@ networks:
     driver: bridge
   # npm(Nginx Proxy Manager)이 컨테이너 이름으로 라우팅하는 공용 네트워크
   proxy:
-    external: true
-
-volumes:
-  postgres-data:
\ No newline at end of file
+    external: true
\ No newline at end of file