Abstract:In order to satisfy private cloud storage system using different underlying storages,a new plug-in model based storage pool design model for private cloud storage is proposed.A unified storage layer between data storage and data management is established,which contains various plugins and provides dynamic performance parameters based on the adapter plug-in,for managing storage strategy and IO policy,balancing dataflow of storage nodes,and improving the overall performance of the storage pool.Practice shows that it can improve utilization of storage resources and improve horizontal scalability for heterogeneous storage,effectively reducing the overall operating costs of private cloud storage service.