diff --git a/tempest/api/compute/admin/test_servers.py b/tempest/api/compute/admin/test_servers.py
index 2029a2e..1b346f1 100644
--- a/tempest/api/compute/admin/test_servers.py
+++ b/tempest/api/compute/admin/test_servers.py
@@ -33,11 +33,8 @@
     def setUpClass(cls):
         super(ServersAdminTestJSON, cls).setUpClass()
         cls.client = cls.os_adm.servers_client
-        cls.flavors_client = cls.os_adm.flavors_client
-
         cls.non_adm_client = cls.servers_client
         cls.flavors_client = cls.os_adm.flavors_client
-
         cls.identity_client = cls._get_identity_admin_client()
         tenant = cls.identity_client.get_tenant_by_name(
             cls.client.tenant_name)
diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index 0b527d9..885adcf 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -100,6 +100,19 @@
                 pass
 
     @classmethod
+    def rebuild_server(cls, **kwargs):
+        # Destroy an existing server and creates a new one
+        try:
+            cls.servers_client.delete_server(cls.server_id)
+            cls.servers_client.wait_for_server_termination(cls.server_id)
+        except Exception as exc:
+            LOG.exception(exc)
+            pass
+        resp, server = cls.create_server(wait_until='ACTIVE', **kwargs)
+        cls.server_id = server['id']
+        cls.password = server['adminPass']
+
+    @classmethod
     def clear_images(cls):
         for image_id in cls.images:
             try:
diff --git a/tempest/api/compute/servers/test_server_actions.py b/tempest/api/compute/servers/test_server_actions.py
index 6f646b2..5b46792 100644
--- a/tempest/api/compute/servers/test_server_actions.py
+++ b/tempest/api/compute/servers/test_server_actions.py
@@ -44,13 +44,13 @@
             self.client.wait_for_server_status(self.server_id, 'ACTIVE')
         except Exception:
             # Rebuild server if something happened to it during a test
-            self.rebuild_servers()
+            self.rebuild_server()
 
     @classmethod
     def setUpClass(cls):
         super(ServerActionsTestJSON, cls).setUpClass()
         cls.client = cls.servers_client
-        cls.rebuild_servers()
+        cls.rebuild_server()
 
     @testtools.skipUnless(compute.CHANGE_PASSWORD_AVAILABLE,
                           'Change password not available.')
@@ -286,14 +286,6 @@
         self.assertEqual(202, resp.status)
         self.client.wait_for_server_status(self.server_id, 'ACTIVE')
 
-    @classmethod
-    def rebuild_servers(cls):
-        # Destroy any existing server and creates a new one
-        cls.clear_servers()
-        resp, server = cls.create_server(wait_until='ACTIVE')
-        cls.server_id = server['id']
-        cls.password = server['adminPass']
-
     @attr(type='gate')
     def test_stop_start_server(self):
         resp, server = self.servers_client.stop(self.server_id)
diff --git a/tempest/api/compute/servers/test_servers_negative.py b/tempest/api/compute/servers/test_servers_negative.py
index 5d9a5ce..c896224 100644
--- a/tempest/api/compute/servers/test_servers_negative.py
+++ b/tempest/api/compute/servers/test_servers_negative.py
@@ -28,6 +28,13 @@
 class ServersNegativeTestJSON(base.BaseComputeTest):
     _interface = 'json'
 
+    def setUp(self):
+        super(ServersNegativeTestJSON, self).setUp()
+        try:
+            self.client.wait_for_server_status(self.server_id, 'ACTIVE')
+        except Exception:
+            self.rebuild_server()
+
     @classmethod
     def setUpClass(cls):
         super(ServersNegativeTestJSON, cls).setUpClass()
@@ -35,6 +42,8 @@
         cls.img_client = cls.images_client
         cls.alt_os = clients.AltManager()
         cls.alt_client = cls.alt_os.servers_client
+        resp, server = cls.create_server(wait_until='ACTIVE')
+        cls.server_id = server['id']
 
     @attr(type=['negative', 'gate'])
     def test_server_name_blank(self):
@@ -92,8 +101,6 @@
     @attr(type=['negative', 'gate'])
     def test_reboot_deleted_server(self):
         # Reboot a deleted server
-        resp, server = self.create_server()
-        self.server_id = server['id']
         self.client.delete_server(self.server_id)
         self.client.wait_for_server_termination(self.server_id)
         self.assertRaises(exceptions.NotFound, self.client.reboot,
@@ -102,8 +109,6 @@
     @attr(type=['negative', 'gate'])
     def test_pause_paused_server(self):
         # Pause a paused server.
-        resp, server = self.create_server(wait_until='ACTIVE')
-        self.server_id = server['id']
         self.client.pause_server(self.server_id)
         self.client.wait_for_server_status(self.server_id, 'PAUSED')
         self.assertRaises(exceptions.Duplicate,
@@ -113,9 +118,6 @@
     @attr(type=['negative', 'gate'])
     def test_rebuild_deleted_server(self):
         # Rebuild a deleted server
-
-        resp, server = self.create_server()
-        self.server_id = server['id']
         self.client.delete_server(self.server_id)
         self.client.wait_for_server_termination(self.server_id)
 
@@ -195,21 +197,19 @@
     def test_update_server_of_another_tenant(self):
         # Update name of a server that belongs to another tenant
 
-        resp, server = self.create_server(wait_until='ACTIVE')
-        new_name = server['id'] + '_new'
+        new_name = self.server_id + '_new'
         self.assertRaises(exceptions.NotFound,
-                          self.alt_client.update_server, server['id'],
+                          self.alt_client.update_server, self.server_id,
                           name=new_name)
 
     @attr(type=['negative', 'gate'])
     def test_update_server_name_length_exceeds_256(self):
         # Update name of server exceed the name length limit
 
-        resp, server = self.create_server(wait_until='ACTIVE')
         new_name = 'a' * 256
         self.assertRaises(exceptions.BadRequest,
                           self.client.update_server,
-                          server['id'],
+                          self.server_id,
                           name=new_name)
 
     @attr(type=['negative', 'gate'])
@@ -222,10 +222,9 @@
     @attr(type=['negative', 'gate'])
     def test_delete_a_server_of_another_tenant(self):
         # Delete a server that belongs to another tenant
-        resp, server = self.create_server(wait_until='ACTIVE')
         self.assertRaises(exceptions.NotFound,
                           self.alt_client.delete_server,
-                          server['id'])
+                          self.server_id)
 
     @attr(type=['negative', 'gate'])
     def test_delete_server_pass_negative_id(self):
@@ -277,11 +276,9 @@
     @attr(type=['negative', 'gate'])
     def test_unpause_server_invalid_state(self):
         # unpause an active server.
-        resp, server = self.create_server(wait_until='ACTIVE')
-        server_id = server['id']
         self.assertRaises(exceptions.Duplicate,
                           self.client.unpause_server,
-                          server_id)
+                          self.server_id)
 
     @attr(type=['negative', 'gate'])
     def test_suspend_non_existent_server(self):
@@ -291,17 +288,13 @@
 
     @attr(type=['negative', 'gate'])
     def test_suspend_server_invalid_state(self):
-        # create server.
-        resp, server = self.create_server(wait_until='ACTIVE')
-        server_id = server['id']
-
         # suspend a suspended server.
-        resp, _ = self.client.suspend_server(server_id)
+        resp, _ = self.client.suspend_server(self.server_id)
         self.assertEqual(202, resp.status)
-        self.client.wait_for_server_status(server_id, 'SUSPENDED')
+        self.client.wait_for_server_status(self.server_id, 'SUSPENDED')
         self.assertRaises(exceptions.Duplicate,
                           self.client.suspend_server,
-                          server_id)
+                          self.server_id)
 
     @attr(type=['negative', 'gate'])
     def test_resume_non_existent_server(self):
@@ -311,14 +304,10 @@
 
     @attr(type=['negative', 'gate'])
     def test_resume_server_invalid_state(self):
-        # create server.
-        resp, server = self.create_server(wait_until='ACTIVE')
-        server_id = server['id']
-
         # resume an active server.
         self.assertRaises(exceptions.Duplicate,
                           self.client.resume_server,
-                          server_id)
+                          self.server_id)
 
 
 class ServersNegativeTestXML(ServersNegativeTestJSON):
diff --git a/tempest/cli/simple_read_only/test_compute.py b/tempest/cli/simple_read_only/test_nova.py
similarity index 100%
rename from tempest/cli/simple_read_only/test_compute.py
rename to tempest/cli/simple_read_only/test_nova.py
diff --git a/tempest/cli/simple_read_only/test_compute_manage.py b/tempest/cli/simple_read_only/test_nova_manage.py
similarity index 100%
rename from tempest/cli/simple_read_only/test_compute_manage.py
rename to tempest/cli/simple_read_only/test_nova_manage.py
diff --git a/tox.ini b/tox.ini
index ff09b3f..cf41586 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,11 +1,14 @@
 [tox]
 envlist = pep8
+minversion = 1.6
+skipsdist = True
 
 [testenv]
 setenv = VIRTUAL_ENV={envdir}
          LANG=en_US.UTF-8
          LANGUAGE=en_US:en
          LC_ALL=C
+usedevelop = True
 
 [testenv:all]
 sitepackages = True
@@ -15,7 +18,6 @@
 
 [testenv:full]
 sitepackages = True
-setenv = VIRTUAL_ENV={envdir}
 # The regex below is used to select which tests to run and exclude the slow tag:
 # See the testrepostiory bug: https://bugs.launchpad.net/testrepository/+bug/1208610
 commands =
@@ -23,21 +25,18 @@
 
 [testenv:testr-full]
 sitepackages = True
-setenv = VIRTUAL_ENV={envdir}
 commands =
   sh tools/pretty_tox.sh '(?!.*\[.*\bslow\b.*\])(^tempest\.(api|scenario|thirdparty|cli|tests)) {posargs}'
 
 [testenv:heat-slow]
 sitepackages = True
-setenv = VIRTUAL_ENV={envdir}
-         OS_TEST_TIMEOUT=1200
+setenv = OS_TEST_TIMEOUT=1200
 # The regex below is used to select heat api/scenario tests tagged as slow.
 commands =
   sh tools/pretty_tox_serial.sh '(?=.*\[.*\bslow\b.*\])(^tempest\.(api|scenario)\.orchestration) {posargs}'
 
 [testenv:large-ops]
 sitepackages = True
-setenv = VIRTUAL_ENV={envdir}
 commands =
   python setup.py testr --slowest --testr-args='tempest.scenario.test_large_ops {posargs}'
 
@@ -69,7 +68,6 @@
 
 [testenv:smoke]
 sitepackages = True
-setenv = VIRTUAL_ENV={envdir}
 # This is still serial because neutron doesn't work with parallel. See:
 # https://bugs.launchpad.net/tempest/+bug/1216076 so the neutron smoke
 # job would fail if we moved it to parallel.
@@ -78,7 +76,6 @@
 
 [testenv:coverage]
 sitepackages = True
-setenv = VIRTUAL_ENV={envdir}
 commands =
    python -m tools/tempest_coverage -c start --combine
    sh tools/pretty_tox.sh '(?!.*\[.*\bslow\b.*\])(^tempest\.(api|scenario|thirdparty|cli|tests))'
@@ -86,7 +83,6 @@
 
 [testenv:stress]
 sitepackages = True
-setenv = VIRTUAL_ENV={envdir}
 commands =
     python -m tempest/stress/run_stress -a -d 3600 -S