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

namespaces.

Signed-off-by: Rishabh Dave <ridave@redhat.com>
(cherry picked from commit 85d0d7783bf361b41b2e27e06ce5bfb2a3c60a21)

diff --git a/doc/cephfs/fs-volumes.rst b/doc/cephfs/fs-volumes.rst
index cf557cbe49717829485c0142ecee33bb9a98ed18..a8a9da61110ca5070d421739899a3d32c2f89ff5 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<pause-purge-threads>` and :ref:`Pause Clone Threads<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