(DOCSP-12369): Added warning about persistent volumes issue. (#1272)

* (DOCSP-12369): Added warning about persistent volumes issue.

* (DOCSP-12369): Incorporated John's feedback.

* (DOCSP-12369): Incorporated Mircea's feedback.

Author: corryroot

docs/deploy-configure.md

@@ -16,6 +16,12 @@ The [`/config/samples`](../config/samples) directory contains example MongoDBCom
 
 ## Deploy a Replica Set
 
+**Warning:** When you delete MongoDB resources, persistent volumes remain
+to help ensure that no unintended data loss occurs. If you create a new 
+MongoDB resource with the same name and persistent volumes, the 
+pre-existing data might cause issues if the new MongoDB resources have a
+different topology than the previous ones.
+
 To deploy your first replica set:
 
 1. Replace `<your-password-here>` in [config/samples/mongodb.com_v1_mongodbcommunity_cr.yaml](../config/samples/mongodb.com_v1_mongodbcommunity_cr.yaml) to the password you wish to use.