DOCSP-2784: hashed sharding not supported on chunks collection in gridfs

Author: kay-kim

source/core/gridfs.txt

@@ -311,8 +311,8 @@ index.
 ``files_id`` is an :term:`objectid` and changes
 :ref:`monotonically<shard-key-monotonic>`.
 
-You cannot use :doc:`/core/hashed-sharding` when sharding the ``chunks``
-collection.
+When sharding the ``chunks`` collection, you cannot use
+:doc:`/core/hashed-sharding` . For details, see :issue:`SERVER-9888`.
 
 The ``files`` collection is small and only contains metadata. None of the
 required keys for GridFS lend themselves to an even distribution in a