diff --git a/etc/staffeln/staffeln.conf b/etc/staffeln/staffeln.conf
index 13cfacf..3ba6d5a 100644
--- a/etc/staffeln/staffeln.conf
+++ b/etc/staffeln/staffeln.conf
@@ -1,17 +1,21 @@
 [conductor]
 backup_workers = 1
 rotation_workers = 1
-backup_service_period = 20
-retention_service_period = 20
+# 20mins
+backup_service_period = 1200
+# 20mins
+retention_service_period = 1200
 # 1y2mon10d5h30min10s
 backup_cycle_timout = 5min
 retention_time = 2w3d
 backup_metadata_key="__automated_backup"
 retention_metadata_key="__staffeln_retention"
+full_backup_depth = 4
 
 [database]
 backend = sqlalchemy
 connection = "mysql+pymysql://root:password@localhost:3306/staffeln"
+tooz_connection = "mysql://root:password@localhost:3306/staffeln"
 mysql_engine = InnoDB
 # mysql_sql_mode = TRADITIONAL
 # idle_timeout = 3600
diff --git a/staffeln/conductor/backup.py b/staffeln/conductor/backup.py
index 2d8214d..2d0d8a7 100755
--- a/staffeln/conductor/backup.py
+++ b/staffeln/conductor/backup.py
@@ -98,6 +98,8 @@
         :param old_tasks: Task list not completed in the previous cycle
         :type: List<Class objects.Queue>
         """
+
+        LOG.info("Adding new backup tasks to queue.")
         # 1. get the old task list, not finished in the last cycle
         #  and keep till now
         old_task_volume_list = []
@@ -105,10 +107,10 @@
             old_task_volume_list.append(old_task.volume_id)
 
         # 2. add new tasks in the queue which are not existing in the old task list
-        queue_list = self.check_instance_volumes()
-        for queue in queue_list:
-            if queue.volume_id not in old_task_volume_list:
-                self._volume_queue(queue)
+        task_list = self.check_instance_volumes()
+        for task in task_list:
+            if task.volume_id not in old_task_volume_list:
+                self._volume_queue(task)
 
     # Backup the volumes attached to which has a specific metadata
     def filter_by_server_metadata(self, metadata):
@@ -132,7 +134,7 @@
             res = volume["status"] in ("available", "in-use")
             if not res:
                 reason = _(
-                    "Volume %s is not backed because it is in %s status"
+                    "Volume %s is not triger new backup task because it is in %s status"
                     % (volume_id, volume["status"])
                 )
                 LOG.info(reason)
diff --git a/staffeln/conf/conductor.py b/staffeln/conf/conductor.py
index 772987a..086ce49 100755
--- a/staffeln/conf/conductor.py
+++ b/staffeln/conf/conductor.py
@@ -19,15 +19,15 @@
     ),
     cfg.IntOpt(
         "backup_service_period",
-        default=30,
-        min=10,
-        help=_("The time of bakup period, the unit is one minute."),
+        default=1800,
+        min=600,
+        help=_("The time of bakup period, the unit is one second."),
     ),
     cfg.IntOpt(
         "report_period",
         default=1440,
         min=10,
-        help=_("The time of report period, the unit is one minute."),
+        help=_("The time of report period, the unit is one second."),
     ),
     cfg.StrOpt(
         "backup_cycle_timout",