Merge pull request #48776 from zdover23/wip-doc-2022-11-08-rados-config-storage-devic...

doc/rados: s/backend/back end/

Reviewed-by: Cole Mitchell <cole.mitchell@gmail.com>

diff --cc doc/rados/configuration/storage-devices.rst
index 64eeffed9b698d20de4592af2a85e9b8a6d3314b,9f680c0d94fcabb30b45a8e4ddfc0c95a347cb99..660a2906a75f84a5829d80346f520016f75128ef
--- 1/doc/rados/configuration/storage-devices.rst
--- 2/doc/rados/configuration/storage-devices.rst
+++ b/doc/rados/configuration/storage-devices.rst
@@@ -26,16 -24,13 +26,15 @@@ There are several Ceph daemons in a sto
    monitoring and management systems.
  
  
- OSD Backends
- ============
+ OSD Back Ends
+ =============
  
- There are two ways that OSDs manage the data they store. 
- As of the Luminous 12.2.z release, the default (and recommended) backend is
- *BlueStore*.  Prior to the Luminous release, the default (and only option) was
- *Filestore*.
+ There are two ways that OSDs manage the data they store.  As of the Luminous
+ 12.2.z release, the default (and recommended) back end is *BlueStore*.  Prior
+ to the Luminous release, the default (and only) back end was *Filestore*.
  
 +.. _rados_config_storage_devices_bluestore:
 +
  BlueStore
  ---------