From: Zac Dover <zac.dover@gmail.com>
Date: Sat, 5 Nov 2022 05:34:20 +0000 (+1000)
Subject: doc/glosary.rst: add "Ceph Block Device" term
X-Git-Tag: v17.2.6~398^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=ea016fbae89db15b34174533ea0bcbb8856d3d8e;p=ceph.git

doc/glosary.rst: add "Ceph Block Device" term

Add a definition for "Ceph Block Device".

Signed-off-by: Zac Dover <zac.dover@gmail.com>
(cherry picked from commit 09e4df6a52fa9e5cb3fb141a423b7da80278a75f)
---

diff --git a/doc/glossary.rst b/doc/glossary.rst
index c427141f9926..27801bd4560a 100644
--- a/doc/glossary.rst
+++ b/doc/glossary.rst
@@ -22,6 +22,13 @@ reflect either technical terms or legacy ways of referring to Ceph systems.
 
 	Ceph
 	Ceph Block Device
+                A software instrument that orchestrates the storage of
+                block-based data in Ceph. Ceph Block Device (also called "RBD",
+                or "RADOS block device") splits block-based application data
+                into "chunks". RADOS stores these chunks as objects. Ceph Block
+                Device orchestrates the storage of those objects across the
+                storage cluster. See also :term:`RBD`.
+
 	Ceph Block Storage
                 The block storage "product," service or capabilities when used
                 in conjunction with ``librbd``, a hypervisor such as QEMU or