diff --git a/hooks/charmhelpers/contrib/network/ovs/ovn.py b/hooks/charmhelpers/contrib/network/ovs/ovn.py
index 7a9de1e7..2075f11a 100644
--- a/hooks/charmhelpers/contrib/network/ovs/ovn.py
+++ b/hooks/charmhelpers/contrib/network/ovs/ovn.py
@@ -140,7 +140,7 @@ class OVNClusterStatus(object):
         return self.leader == 'self'
 
 
-def cluster_status(target, schema=None, use_ovs_appctl=False):
+def cluster_status(target, schema=None, use_ovs_appctl=False, rundir=None):
     """Retrieve status information from clustered OVSDB.
 
     :param target: Usually one of 'ovsdb-server', 'ovnnb_db', 'ovnsb_db', can
@@ -151,6 +151,8 @@ def cluster_status(target, schema=None, use_ovs_appctl=False):
     :param use_ovs_appctl: The ``ovn-appctl`` command appeared in OVN 20.03,
                            set this to True to use ``ovs-appctl`` instead.
     :type use_ovs_appctl: bool
+    :param rundir: Override path to sockets
+    :type rundir: Optional[str]
     :returns: cluster status data object
     :rtype: OVNClusterStatus
     :raises: subprocess.CalledProcessError, KeyError, RuntimeError
@@ -164,8 +166,9 @@ def cluster_status(target, schema=None, use_ovs_appctl=False):
 
     status = {}
     k = ''
-    for line in ovn_appctl(target, 'cluster/status',
-                           schema or schema_map[target],
+    for line in ovn_appctl(target,
+                           ('cluster/status', schema or schema_map[target]),
+                           rundir=rundir,
                            use_ovs_appctl=use_ovs_appctl).splitlines():
         if k and line.startswith(' '):
             # there is no key which means this is a instance of a multi-line/
@@ -222,7 +225,7 @@ def is_northd_active():
     :rtype: bool
     """
     try:
-        for line in ovn_appctl('ovn-northd', 'status').splitlines():
+        for line in ovn_appctl('ovn-northd', ('status',)).splitlines():
             if line.startswith('Status:') and 'active' in line:
                 return True
     except subprocess.CalledProcessError:
diff --git a/hooks/charmhelpers/contrib/storage/linux/ceph.py b/hooks/charmhelpers/contrib/storage/linux/ceph.py
index eb31b782..95a0d82a 100644
--- a/hooks/charmhelpers/contrib/storage/linux/ceph.py
+++ b/hooks/charmhelpers/contrib/storage/linux/ceph.py
@@ -92,6 +92,7 @@ DEFAULT_PGS_PER_OSD_TARGET = 100
 DEFAULT_POOL_WEIGHT = 10.0
 LEGACY_PG_COUNT = 200
 DEFAULT_MINIMUM_PGS = 2
+AUTOSCALER_DEFAULT_PGS = 32
 
 
 class OsdPostUpgradeError(Exception):
@@ -399,16 +400,28 @@ class ReplicatedPool(Pool):
 
     def create(self):
         if not pool_exists(self.service, self.name):
+            nautilus_or_later = cmp_pkgrevno('ceph-common', '14.2.0') >= 0
             # Create it
-            cmd = ['ceph', '--id', self.service, 'osd', 'pool', 'create',
-                   self.name, str(self.pg_num)]
+            if nautilus_or_later:
+                cmd = [
+                    'ceph', '--id', self.service, 'osd', 'pool', 'create',
+                    '--pg-num-min={}'.format(
+                        min(AUTOSCALER_DEFAULT_PGS, self.pg_num)
+                    ),
+                    self.name, str(self.pg_num)
+                ]
+            else:
+                cmd = [
+                    'ceph', '--id', self.service, 'osd', 'pool', 'create',
+                    self.name, str(self.pg_num)
+                ]
+
             try:
                 check_call(cmd)
                 # Set the pool replica size
                 update_pool(client=self.service,
                             pool=self.name,
                             settings={'size': str(self.replicas)})
-                nautilus_or_later = cmp_pkgrevno('ceph-common', '14.2.0') >= 0
                 if nautilus_or_later:
                     # Ensure we set the expected pool ratio
                     update_pool(client=self.service,
@@ -466,10 +479,24 @@ class ErasurePool(Pool):
             k = int(erasure_profile['k'])
             m = int(erasure_profile['m'])
             pgs = self.get_pgs(k + m, self.percent_data)
+            nautilus_or_later = cmp_pkgrevno('ceph-common', '14.2.0') >= 0
             # Create it
-            cmd = ['ceph', '--id', self.service, 'osd', 'pool', 'create',
-                   self.name, str(pgs), str(pgs),
-                   'erasure', self.erasure_code_profile]
+            if nautilus_or_later:
+                cmd = [
+                    'ceph', '--id', self.service, 'osd', 'pool', 'create',
+                    '--pg-num-min={}'.format(
+                        min(AUTOSCALER_DEFAULT_PGS, pgs)
+                    ),
+                    self.name, str(pgs), str(pgs),
+                    'erasure', self.erasure_code_profile
+                ]
+            else:
+                cmd = [
+                    'ceph', '--id', self.service, 'osd', 'pool', 'create',
+                    self.name, str(pgs), str(pgs),
+                    'erasure', self.erasure_code_profile
+                ]
+
             try:
                 check_call(cmd)
                 try:
@@ -478,7 +505,6 @@ class ErasurePool(Pool):
                                           name=self.app_name)
                 except CalledProcessError:
                     log('Could not set app name for pool {}'.format(self.name, level=WARNING))
-                nautilus_or_later = cmp_pkgrevno('ceph-common', '14.2.0') >= 0
                 if nautilus_or_later:
                     # Ensure we set the expected pool ratio
                     update_pool(client=self.service,
diff --git a/test-requirements.txt b/test-requirements.txt
index 01df23f7..7d9c2587 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -7,10 +7,7 @@
 #       requirements.  They are intertwined.  Also, Zaza itself should specify
 #       all of its own requirements and if it doesn't, fix it there.
 #
-# NOTE(fnordahl): Revert to using charm-tools from PyPI as soon as we get a
-# release with commit 2bba009 in it.
-# charm-tools>=2.4.4
-git+https://github.com/juju/charm-tools.git#egg=charm-tools
+charm-tools>=2.4.4
 requests>=2.18.4
 mock>=1.2
 flake8>=2.2.4,<=2.4.1
diff --git a/tox.ini b/tox.ini
index 20dbbfc5..b835733a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -41,6 +41,11 @@ basepython = python3.7
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 
+[testenv:py38]
+basepython = python3.8
+deps = -r{toxinidir}/requirements.txt
+       -r{toxinidir}/test-requirements.txt
+
 [testenv:py3]
 basepython = python3
 deps = -r{toxinidir}/requirements.txt