doc/dev/ceph-volume add VDO tag information

Signed-off-by: Alfredo Deza <adeza@redhat.com>

diff --git a/doc/dev/ceph-volume/lvm.rst b/doc/dev/ceph-volume/lvm.rst
index 529e7e4705231ec0a6bcdefb327ce0f3a77a0723..f2df6d850906f0626b2831e6a63b495ae5298b50 100644 (file)
--- a/doc/dev/ceph-volume/lvm.rst
+++ b/doc/dev/ceph-volume/lvm.rst
@@ -166,3 +166,14 @@ the partition UUID.
 Example::
 
     ceph.wal_uuid=A58D1C68-0D6E-4CB3-8E99-B261AD47CC39
+
+
+``vdo``
+-------
+A VDO-enabled device is detected when device is getting prepared, and then
+stored for later checks when activating. This affects mount options by
+appending the ``discard`` mount flag, regardless of mount flags being used.
+
+Example for an enabled VDO device::
+
+    ceph.vdo=1