doc/glossary: add "object storage"

Add a (very basic) definition of object storage.

Signed-off-by: Zac Dover <zac.dover@proton.me>
(cherry picked from commit 43057b88538e868b817acb04d5e6c4e95b4c716e)

diff --git a/doc/glossary.rst b/doc/glossary.rst
index 2edea309ce1961bf6647a68425ec3f104d0b8048..b016d9f94ce7056c3748d183ccb6458046b763d7 100644 (file)
--- a/doc/glossary.rst
+++ b/doc/glossary.rst
@@ -323,6 +323,12 @@
        Node
                 See :term:`Ceph Node`.
 
+       Object Storage
+                Object storage is one of three kinds of storage relevant to
+                Ceph. The other two kinds of storage relevant to Ceph are file
+                storage and block storage. Object storage is the category of
+                storage most fundamental to Ceph.
+
        Object Storage Device
                 See :term:`OSD`.