DOCSP-20159 sharded clusters and file system snapshots (#559) (#595)

jason-price-mongodb · jason-price-mongodb · web-flow · commit 11843a3efacc · 2022-02-09T11:35:45.000-08:00
* DOCSP-20159-sharded-clusters-and-file-system-snapshots * DOCSP-20159-sharded-clusters-and-file-system-snapshots * DOCSP-20159-sharded-clusters-and-file-system-snapshots * DOCSP-20159-sharded-clusters-and-file-system-snapshots * DOCSP-20159-sharded-clusters-and-file-system-snapshots * DOCSP-20159-sharded-clusters-and-file-system-snapshots * DOCSP-20159-sharded-clusters-and-file-system-snapshots * DOCSP-20159-sharded-clusters-and-file-system-snapshots * DOCSP-20159-sharded-clusters-and-file-system-snapshots * DOCSP-20159-sharded-clusters-and-file-system-snapshots * DOCSP-20159-sharded-clusters-and-file-system-snapshots * DOCSP-20159-sharded-clusters-and-file-system-snapshots * DOCSP-20159-sharded-clusters-and-file-system-snapshots * DOCSP-20159-sharded-clusters-and-file-system-snapshots Co-authored-by: jason-price-mongodb <jshfjghsdfgjsdjh@aolsdjfhkjsdhfkjsdf.com> Co-authored-by: jason-price-mongodb <jshfjghsdfgjsdjh@aolsdjfhkjsdhfkjsdf.com>
diff --git a/source/includes/sharded-clusters-backup-restore-file-system-snapshot-restriction.rst b/source/includes/sharded-clusters-backup-restore-file-system-snapshot-restriction.rst
@@ -0,0 +1,10 @@
+In MongoDB 4.2+, you cannot use :doc:`file system snapshots
+</tutorial/backup-with-filesystem-snapshots>` for backups that involve
+transactions across shards because those backups do not maintain
+atomicity. Instead, use one of the following to perform the backups:
+
+- `MongoDB Atlas <https://docs.atlas.mongodb.com/>`_,
+
+- `MongoDB Cloud Manager <https://docs.cloudmanager.mongodb.com/>`_, or
+   
+- `MongoDB Ops Manager <https://docs.opsmanager.mongodb.com/>`_.
diff --git a/source/tutorial/backup-sharded-cluster-with-filesystem-snapshots.txt b/source/tutorial/backup-sharded-cluster-with-filesystem-snapshots.txt
@@ -31,6 +31,11 @@ clusters in particular, see :doc:`/core/backups` and
 Considerations
 --------------
 
+Transactions Across Shards
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. include:: /includes/sharded-clusters-backup-restore-file-system-snapshot-restriction.rst
+
 Encrypted Storage Engine (MongoDB Enterprise Only)
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
