DOCSP-15886 doc limitations with shared clusters (#124)

* DOCSP-15886 doc limitations with shared clusters

* DOCSP-15886 updates for CR feedback

* DOCS-15886 updates for RS' feedback

* Update source/mongorestore.txt

Co-authored-by: Rohan Sharan <[email protected]>

* DOCS-15886 updates for RS' feedback

---------

Co-authored-by: Rohan Sharan <[email protected]>

Author: kanchana-mongodb

source/mongodump.txt

@@ -388,6 +388,22 @@ FIPS
 connections to a :binary:`~bin.mongod`/:binary:`~bin.mongos` that is
 :manual:`configured to use FIPS mode </tutorial/configure-fips>`.
 
+Using ``mongodump`` on Atlas Free and Shared Tier Clusters 
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+On free (``M0``) and shared (``M2`` and ``M5``) tier Atlas clusters, the
+following limitations apply: 
+
+- You can't run ``mongodump`` on the ``admin`` database. By default,
+  ``mongodump`` skips this database. If you use the :option:`--db
+  <mongodump --db>` option to set the destination database to ``admin``,
+  the program returns an error.
+
+- You can't use the following options with the ``mongodump`` program:
+
+  - :option:`--dumpDbUsersAndRoles`
+  - :option:`--oplog <mongodump --oplog>`
+
 Required Access
 ---------------
 

source/mongorestore.txt

@@ -215,6 +215,23 @@ Starting in MongoDB 5.0, you can use ``mongorestore`` to restore
 :ref:`timeseries collections <manual-timeseries-landing>`.
 For details, see :ref:`mongorestore-example-time-series`.
 
+Using ``mongorestore`` on Atlas Free and Shared Tier Clusters 
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+On free (``M0``) and shared (``M2`` and ``M5``) tier Atlas clusters, the
+following limitations apply:
+
+- You can't run ``mongorestore`` on the ``admin`` database. By default,
+  ``mongorestore`` skips this database. If you use the :option:`--db
+  <mongorestore --db>` option to set the destination database to
+  ``admin``, the program returns an error.
+
+- You can't use the following options with the ``mongorestore`` program:
+
+  - :option:`--restoreDbUsersAndRoles`
+  - :option:`--oplogReplay <mongorestore --oplogReplay>`
+  - :option:`--preserveUUID <mongorestore --preserveUUID>`
+
 .. _mongorestore-required-access:
 
 Required Access