doc/glossary: improve "ceph" term

Define "ceph" in glossary.rst.

Signed-off-by: Zac Dover <zac.dover@gmail.com>
(cherry picked from commit 5d2ae39465833c09cf65c745c5a28f8bcd28ddde)

diff --git a/doc/glossary.rst b/doc/glossary.rst
index c9f5944e1b01e231dadc5e745e978dc096d175eb..b815f936f7449a11a16a7ab173b096c7cd9d7193 100644 (file)
--- a/doc/glossary.rst
+++ b/doc/glossary.rst
@@ -15,6 +15,9 @@
                 Ceph's default and recommended storage back end.
 
        Ceph
+                Ceph is a distributed network storage and file system with
+                distributed metadata management and POSIX semantics.
+
        Ceph Block Device
                 A software instrument that orchestrates the storage of
                 block-based data in Ceph. Ceph Block Device (also called "RBD",