diff --git a/deploy-guide/source/app-ha.rst b/deploy-guide/source/app-ha.rst
index 6f18e00..6a1dca2 100644
--- a/deploy-guide/source/app-ha.rst
+++ b/deploy-guide/source/app-ha.rst
@@ -1,7 +1,7 @@
 .. _ha:
 
 =======================================
-Appendix S: OpenStack high availability
+Appendix T: OpenStack high availability
 =======================================
 
 Overview
diff --git a/deploy-guide/source/app-trilio-vault.rst b/deploy-guide/source/app-trilio-vault.rst
new file mode 100644
index 0000000..0bc8dd8
--- /dev/null
+++ b/deploy-guide/source/app-trilio-vault.rst
@@ -0,0 +1,144 @@
+=======================================
+Appendix U: TrilioVault Data Protection
+=======================================
+
+Overview
+--------
+
+As of the 20.05 release, the OpenStack charms support deployment of
+TrilioVault, a data protection solution that integrates with
+OpenStack.
+
+TrilioVault allows end-users to independently backup and restore
+point-in-time snapshots of their own workloads.
+
+.. note::
+
+   TrilioVault is not part of the OpenStack project and is a commercially
+   supported propriety product.  For more details visit `trilio.io`_.
+
+Prerequisites
+-------------
+
+ - Ubuntu 18.04 LTS
+ - OpenStack Queens, Stein or Train
+ - NFS server for storage of snapshots
+
+.. note::
+
+   TrilioVault requires a license for operation. For more details visit
+   `trilio.io`_.
+
+.. warning::
+
+   TrilioVault only supports Ubuntu 18.04 LTS.
+
+Deployment
+----------
+
+The TrilioVault solution consists of three core services:
+
+ - TrilioVault Workload Manager: this service provides the main API
+   for TrilioVault and is used to create and manage snapshots
+   and restores.
+ - TrilioVault Data Mover API: this service provides the API for
+   managing the TrilioVault Data Mover services and is used
+   by the TrilioVault Workload Manager.
+ - TrilioVault Data Mover: deployed alongside Nova Compute services
+   this service is responsible for managing the snapshot process for
+   instances running on the OpenStack Cloud.
+
+TrilioVault also provides an OpenStack Dashboard plugin providing a Web UI
+for end users and cloud administrators.
+
+TrilioVault may be added to an OpenStack cloud using the following example
+overlay bundle:
+
+.. code-block:: yaml
+
+   series: bionic
+   applications:
+     trilio-data-mover:
+       charm: cs:~openstack-charmers/trilio-data-mover
+       options:
+         triliovault-pkg-source: "deb [trusted=yes] https://apt.fury.io/triliovault-python3/ /"
+     trilio-dm-api:
+       charm: cs:~openstack-charmers/trilio-dm-api
+       num_units: 1
+       options:
+         openstack-origin: cloud:bionic-train
+         triliovault-pkg-source: "deb [trusted=yes] https://apt.fury.io/triliovault-python3/ /"
+     trilio-horizon-plugin:
+       charm: cs:~openstack-charmers-next/trilio-horizon-plugin
+       options:
+         triliovault-pkg-source: "deb [trusted=yes] https://apt.fury.io/triliovault-python3/ /"
+     trilio-wlm:
+       charm: cs:~openstack-charmers/trilio-wlm
+       num_units: 1
+       options:
+         openstack-origin: cloud:bionic-train
+         triliovault-pkg-source: "deb [trusted=yes] https://apt.fury.io/triliovault-python3/ /"
+   relations:
+     - - trilio-horizon-plugin:dashboard-plugin
+       - openstack-dashboard:dashboard-plugin
+     - - trilio-dm-api:identity-service
+       - keystone:identity-service
+     - - trilio-dm-api:shared-db
+       - mysql:shared-db
+     - - trilio-dm-api:amqp
+       - rabbitmq-server:amqp
+     - - trilio-data-mover:amqp
+       - rabbitmq-server:amqp
+     - - trilio-data-mover:juju-info
+       - nova-compute:juju-info
+     - - trilio-wlm:shared-db
+       - mysql:shared-db
+     - - trilio-wlm:amqp
+       - rabbitmq-server:amqp
+     - - trilio-wlm:identity-service
+       - keystone:identity-service
+
+NFS
+---
+
+After deployment completes the TrilioVault Data Mover and Workload Manager
+applications will be in a blocked state (see :command:`juju status`). Both
+must be configured with a valid NFS share on the NFS server used in the
+deployment via configuration:
+
+.. code-block:: none
+
+   juju config trilio-wlm nfs-shares=10.40.3.20:/srv/triliovault
+   juju config trilio-data-mover nfs-shares=10.40.3.20:/srv/triliovault
+
+Both services must be configured with the same NFS share.
+
+Authorisation
+-------------
+
+The TrilioVault service account must be granted the authorisation to access
+resources from across users and projects to perform backups. This will require
+passing the cloud admin password (setup by the keystone application) to the
+``create-cloud-admin-trust`` action:
+
+.. code-block:: none
+
+   juju run-action trilio-wlm/leader create-cloud-admin-trust password=cloudadminpassword
+
+Licensing
+---------
+
+Finally, the TrilioVault deployment must be licensed. This is completed by
+uploading the license file from Trilio as a resource and then executing the
+``create-license`` action:
+
+.. code-block:: none
+
+   juju attach trilio-wlm license=mycorp_tv.lic
+   juju run-action trilio-wlm/leader create-license
+
+The trilio-wlm and trilio-data-mover applications should be in the 'active'
+state and ready for use.
+
+.. LINKS
+.. _trilio.io: https://www.trilio.io/triliovault/openstack/
diff --git a/deploy-guide/source/app.rst b/deploy-guide/source/app.rst
index 23770ca..b7a1ad2 100644
--- a/deploy-guide/source/app.rst
+++ b/deploy-guide/source/app.rst
@@ -25,3 +25,4 @@ Appendices
    app-swift.rst
    app-hardware-offload.rst
    app-ha.rst
+   app-trilio-vault.rst