doc/glossary: add matter to "RBD"

Clarify that "RBD" and "Ceph Block Device" and "RADOS Block Device" all
refer to the same thing.

Signed-off-by: Zac Dover <zac.dover@gmail.com>
(cherry picked from commit acdb2a6ee357f3b662580d6d7bc815af08af730e)

diff --git a/doc/glossary.rst b/doc/glossary.rst
index baaf761bf3347504a09a03d2cedc77a87723aafd..614d4479383ef0fc329933dec5b1457e58085f76 100644 (file)
--- a/doc/glossary.rst
+++ b/doc/glossary.rst
@@ -294,7 +294,8 @@
                 See :term:`RGW`.
 
        RBD
-               The block storage component of Ceph.
+                The block storage component of Ceph. Also called "RADOS Block
+                Device" or :term:`Ceph Block Device`.
 
        Reliable Autonomic Distributed Object Store
                 The core set of storage software which stores the user's data