Update storage.rst

docs/source/storage.rst

@@ -394,3 +394,10 @@ data type. The specification of the namespace is stored in
 ``/specifications/<namespace-name>/<version>/<source-filename>``. Here ``<source-filename>`` refers to the main name
 of the source-file without file extension (e.g., the core namespace defines ``nwb.ephys.yaml`` as source which would
 be stored in ``/specifications/core/2.0.1/nwb.ecephys``).
+
+Consolidating Metadata
+======================
+
+Zarr allows users to consolidate all metadata for groups and arrays within the given store. In practice, every file
+will consolidate all metadata within into a single `.zmetadata` file, stored in the root group. This reduces the number of read
+operations when retrieving certain metadata in read mode.