WinSMB volume driver doc: Add Volume backup support
This update is based on the Windows SMB: Volume Backup support
blueprint and merged change 528352 authored and committed by
Lucian Petrut: Change ID:
@@ -69,6 +69,15 @@ consumer side (e.g. Hyper-V).
cinder create $size --volume-type $volume_type_id
.. end
+The ``Cinder Backup Service`` can be run on Windows. This driver stores
+the volumes using vhdx images stored on SMB shares which can be attached
+in order to retrieve the volume data and send it to the backup service.
+
+Prerequisites:
+
+* All physical disks must be in byte mode
+* rb+ must be used when writing backups to disk
+
Clustering support
------------------
Active-Active Cinder clustering is currently experimental and should not be
