diff --git a/Documentation/ch-volume-management-intro.rst b/Documentation/ch-volume-management-intro.rst
index c0ba68a7..b350a233 100644
--- a/Documentation/ch-volume-management-intro.rst
+++ b/Documentation/ch-volume-management-intro.rst
@@ -116,3 +116,13 @@ In order to remove a device, you need to convert the profile in this case:
 
         $ btrfs balance start -mconvert=dup -dconvert=single /mnt
         $ btrfs device remove /dev/sda /mnt
+
+.. warning::
+   Do not run balance to convert from a profile with more redundancy to one with
+   less redundancy in order to remove a failing device from a filesystem.
+
+   Balance is done by reading out the good metadata/data and write them into into a
+   new chunk.
+   Thus it's possible the new chunk is written into the failing device.
+
+   Use `btrfs device replace` instead.