doc/cephfs: add note about change in format of name of volume pool...

namespaces.

Signed-off-by: Rishabh Dave <ridave@redhat.com>

diff --git a/doc/cephfs/fs-volumes.rst b/doc/cephfs/fs-volumes.rst
index 3747d8eb083bc3b87bb3e2bd13bc0566d1f06a8f..f6adf1b4caa7c3593acd1cf2dfa8efbcdb5f1aef 100644 (file)
--- a/doc/cephfs/fs-volumes.rst
+++ b/doc/cephfs/fs-volumes.rst
@@ -1627,5 +1627,13 @@ threads launched by volumes plugins for cloning and purging trash. For details
 on these see: :ref:`pause-purge-threads` and :ref:`pause-clone-threads`.
 
 
+
+.. note:: Pool namespace for CephFS volumes until Tentacle release had names in
+   this format: "fsvolumens__<subvol-name>". However, this could lead to clash
+   in namespace when two subvolumes of same were located in this different
+   subvolume group. And therefore after Tentacle pool namespace format was
+   changed to "fsvolumens__<subvol-grp-name>_<subvol-name>".
+
+
 .. _manila: https://github.com/openstack/manila
 .. _CSI: https://github.com/ceph/ceph-csi