The NDMP-Plus Prototype Design and Implementation for Network Based Data Management

Network based data management/backup/restore is the key component in the data storage centre. This paper proposes a new net-work based data management — NDMP-Plus. We firstly discuss the components of the NDMP-Plus architecture. Then, we detail two new techniques in NDMP-Plus — VSL (Virtual Storage Layer) and the negotiation mechanism. VSL is the core component to implement the flexibility, which could avoid the network communication with the storage media directly. And the negotiation mechanism is the key mechanism to improve the performance. Furthermore, we carry out an experiment to evaluate the performance of NDMP-Plus. The result of it suggests that NDMP-Plus has stronger flexibility and higher performance than the original NDMP.