OCP Control plane Thread Model: https://docs.google.com/document/d/135S4Mt67UrYSCpDI1Zxib9pq9tTZBaDxuqTCNCidltU/edit#heading=h.clj3egttwf1z

For adding cloning feature to Azure File driver we probably don't a separate document, or no model document at all considering the scope of the feature. Also we could modify the existing one if needed.