diff --git a/hooks/charmhelpers/contrib/openstack/templates/ceph.conf b/hooks/charmhelpers/contrib/openstack/templates/ceph.conf
index b99851cc..33ceee25 100644
--- a/hooks/charmhelpers/contrib/openstack/templates/ceph.conf
+++ b/hooks/charmhelpers/contrib/openstack/templates/ceph.conf
@@ -13,3 +13,9 @@ log to syslog = {{ use_syslog }}
 err to syslog = {{ use_syslog }}
 clog to syslog = {{ use_syslog }}
 
+[client]
+{% if rbd_client_cache_settings -%}
+{% for key, value in rbd_client_cache_settings.iteritems() -%}
+{{ key }} = {{ value }}
+{% endfor -%}
+{%- endif %}
\ No newline at end of file
diff --git a/hooks/charmhelpers/contrib/openstack/utils.py b/hooks/charmhelpers/contrib/openstack/utils.py
index 4d395a73..eefcf08b 100644
--- a/hooks/charmhelpers/contrib/openstack/utils.py
+++ b/hooks/charmhelpers/contrib/openstack/utils.py
@@ -54,7 +54,8 @@ from charmhelpers.contrib.storage.linux.lvm import (
 )
 
 from charmhelpers.contrib.network.ip import (
-    get_ipv6_addr
+    get_ipv6_addr,
+    is_ipv6,
 )
 
 from charmhelpers.contrib.python.packages import (
@@ -519,6 +520,12 @@ def sync_db_with_multi_ipv6_addresses(database, database_user,
                                       relation_prefix=None):
     hosts = get_ipv6_addr(dynamic_only=False)
 
+    if config('vip'):
+        vips = config('vip').split()
+        for vip in vips:
+            if vip and is_ipv6(vip):
+                hosts.append(vip)
+
     kwargs = {'database': database,
               'username': database_user,
               'hostname': json.dumps(hosts)}
diff --git a/hooks/charmhelpers/core/hookenv.py b/hooks/charmhelpers/core/hookenv.py
index ab53a780..c2bee134 100644
--- a/hooks/charmhelpers/core/hookenv.py
+++ b/hooks/charmhelpers/core/hookenv.py
@@ -623,6 +623,38 @@ def unit_private_ip():
     return unit_get('private-address')
 
 
+@cached
+def storage_get(attribute="", storage_id=""):
+    """Get storage attributes"""
+    _args = ['storage-get', '--format=json']
+    if storage_id:
+        _args.extend(('-s', storage_id))
+    if attribute:
+        _args.append(attribute)
+    try:
+        return json.loads(subprocess.check_output(_args).decode('UTF-8'))
+    except ValueError:
+        return None
+
+
+@cached
+def storage_list(storage_name=""):
+    """List the storage IDs for the unit"""
+    _args = ['storage-list', '--format=json']
+    if storage_name:
+        _args.append(storage_name)
+    try:
+        return json.loads(subprocess.check_output(_args).decode('UTF-8'))
+    except ValueError:
+        return None
+    except OSError as e:
+        import errno
+        if e.errno == errno.ENOENT:
+            # storage-list does not exist
+            return []
+        raise
+
+
 class UnregisteredHookError(Exception):
     """Raised when an undefined hook is called"""
     pass