Research On The Medium Model Of Centralized Management In Distributed Environments

A lot of backup software adopts central mechanism. In the condition, all backup business is completed by the special backup server attached device itself。Although the design can support local safety, it isn't competent for distributed network more and more。At present, NAS (Network Attached Storage) and SAN (Storage area network) are advanced in their fields。but both of them have limitation in storage technique respective and they solve issue of backup only from point of view of storage。But we not only need to make the backup to the important data, we also need to manage, to restore these backup data effectively as well as carry on the management to the equipment。According to that,we put forward our paper。The topic which take the present development's NetBac backup software as a platform, is independent the medium server level。It can directly connect library of tapes or share a library of tapes with the host server, not can only realizes the medium equipment resources local safety control, moreover provides the data path, thus reduced the network load and can realize the resource sharing; It Can also provide the centralized directory services, solving the long-distance resource sharing。Next, we established medium and the device management model of the multi-medium server, which have realized effective management of the data。At the same time, the hypothesized library of tapes technology has realized the graduation memory, providing the high storage efficiency; In addition, using in the concrete data storage from the description storage format, has provided the high reliability for the data recovery。The system application indicates that it has served the design purpose, can satisfy the request of data backup under the current distribution network environment。...