move storage dir

compose.system.yaml

@@ -6,6 +6,7 @@ x-postgres-env: &postgres_env
   POSTGRES_DB: ${POSTGRES_DB}
 x-system-env: &system_env
   TZ: Europe/Amsterdam
+  DATA_DIR: ${DATA_DIR}
   CACHE_DIR: /tmp/cache
 x-dagster-env: &dagster_env
   DAGSTER_POSTGRES_HOST: ${POSTGRES_HOST}
@@ -26,7 +27,7 @@ x-volumes: &volumes
     - /opt/dagster/dagster.yaml:/opt/dagster/home/dagster.yaml.template:ro
     - /opt/dagster/workspace.yaml:/opt/dagster/home/workspace.yaml:ro
     - /opt/dagster/system/:/code/system/:ro
-    - /opt/dagster/storage/:/storage/:rw
+    - /mnt/mezzo/scratch/dagster/:/storage/:rw
     - /opt/dagster/logs/:/logs:rw
     - /var/run/docker.sock:/var/run/docker.sock:rw