diff --git a/content/manuals/engine/storage/containerd.md b/content/manuals/engine/storage/containerd.md
index c382e36577ac..4d02c0ace47d 100644
--- a/content/manuals/engine/storage/containerd.md
+++ b/content/manuals/engine/storage/containerd.md
@@ -62,6 +62,16 @@ uncompressed layers are still de-duplicated through snapshotters. The
 compressed storage adds overhead proportional to the number of images using
 those layers.
 
+> [!IMPORTANT]
+> containerd uses a separate storage path from the Docker data directory.
+> If you previously configured a custom data directory for Docker (for example,
+> to use a different partition), containerd's storage is not automatically
+> moved to that location. You need to configure containerd's data directory
+> separately to avoid filling your root partition.
+>
+> To configure containerd's data directory, see
+> [Configure the data directory location](../daemon/_index.md#configure-the-data-directory-location).
+
 If disk space is constrained, consider the following:
 
 - Regularly prune unused images with `docker image prune`