# Storage ownership An Immich account owns assets. Its storage label, when set, replaces its unique ID in `/data/library//...`. The existing template supplies the remaining relative date and filename. Future users use the same mount and template. `IMMICH_LIBRARY_PATH` is an absolute existing host directory. It is required only when the optional storage Compose file is selected. It never changes PostgreSQL, Valkey, model cache or the main application volume. During processing an original may still occupy `/data/upload`. Finalization moves it under `/data/library`, with hash verification retained. Both locations and the database belong in the backup contract.