Hybrid OSD
Refers to an OSD that has both HDD and SSD drives.
+ librados
+ An API that can be used to create a custom interface to a Ceph
+ storage cluster. ``librados`` makes it possible to interact
+ with Ceph Monitors and with OSDs. See :ref:`Introduction to
+ librados <librados-intro>`. See :ref:`librados (Python)
+ <librados-python>`.
+
LVM tags
**L**\ogical **V**\olume **M**\anager tags. Extensible metadata
for LVM volumes and groups. They are used to store
+.. _librados-intro:
+
==========================
Introduction to librados
==========================
+.. _librados-python:
+
===================
Librados (Python)
===================