From 17fb15660d3bec5248de38c0e90d30d9c4664e57 Mon Sep 17 00:00:00 2001
From: amalhotra-mdb <135728846+amalhotra-mdb@users.noreply.github.com>
Date: Tue, 28 Jan 2025 15:20:57 -0500
Subject: [PATCH] DOCSP-46629-replSetResizeOplog-unsupported-Atlas (#558)

* DOCSP-46629-replSetResizeOplog-unsupported-Atlas

* indent

* reviewer changes

* undo some changes

(cherry picked from commit 1175079e12dd8fe6ed8d88018d90c2bac2211362)
---
 source/reference/oplog-sizing.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/source/reference/oplog-sizing.txt b/source/reference/oplog-sizing.txt
index 7d21f67bf..98fa65ff6 100644
--- a/source/reference/oplog-sizing.txt
+++ b/source/reference/oplog-sizing.txt
@@ -63,6 +63,12 @@ Monitor oplog Size Needed for Initial Sync
       - Increase the ``oplog`` window. Use :dbcommand:`replSetResizeOplog`
         to set ``minRetentionHours`` greater than the current ``oplog`` 
         window.
+
+        .. note:: 
+
+           :dbcommand:`replSetResizeOplog` is unsupported in Atlas. To resize 
+           the oplog in Atlas, see :ref:`set-oplog-min-window`.    
+
       - Scale up the ``mongosync`` instance. Add CPU or memory to scale
         up the ``mongosync`` node so that it has a higher copy rate.