数字化图书馆的数据备份研究

数据备份的目的是恢复数据的原有特征，以防止信息系统的意外事故导致数字化图书馆的数据损失。数据备份需要大容量的磁带存储设备，同时，还需要驱动技术的支持。在备份系统中，软件起着核心的作用，另外，备份数据的管理应注重策略的制定。目前备份技术正从多个方面向前发展。

Data Backing-up Research of Digital Library

The purpose that the summary data backing up is to resume the original characteristic of the data,in order to prevent the contingency of the information system from leading to the fact that the data of the digitilized library are lost.Data back up need heavy the tapes of capacity store the equipment.Besides,still need to drive the support of technology.In backing up the system,the software plays a key role.In addition,the formulation that should pay attention to the tactics in management of backing up the data.Back up technology to develop from a lot of respects forward at present.