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+#Apigee OPDK Playbook Maintenance Cassandra Replication Factor
+
+This playbook uses the roles to modify the Cassandra Replication Factor using Zero Downtime .
+
+## Usage
+Use ```ansible-galaxy``` to download the required roles.
+
+```ansible-galaxy install -r requirements.yml```
+
+The ```replication_factor_update.yml``` requires that you specify the ```replication_factor```,
+```opdk_region``` and the ```hosts```. 
+
+```ansible-playbook replication_factor_update.yml -e hosts=dc-1-ds -e opdk_region=dc-1 -e replication_factor=3```
+
+This playbook contains a convenience playbook that uses the ```replication_factor_update.yml```
+ and requires that you specify only the ```replication_factor```.
+
+```ansible-playbook update.yml -vv -b -e replication_factor=3```
+
+### Tags
+The tasks of this playbook have been partitioned work between datacenter
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