改善存储备份系统功能的新途径

数据备份是信息系统中保护数据的必要手段，然而，由于备份过程对服务器CPU、服务器I／O及网络资源的占用非常严重，势必影响应用系统的性能。因此，如何规划备份系统也成为IT经理们必然要面临的一个问题。虚拟带库的产品和解决方案就是着眼于这个问题而推出的。本文主要介绍虚拟带库解决方案的工作原理、适用环境以及几个主流厂商的产品，以便更多的读者了解这种新技术。

A new way to improve function of storage backup system

Data backup is a necessary tool to protect the data in information system, but the property of applied system will be affected significantly since occupation of such resources as server CPU and I/O and network resource significantly. So, how to plan the backup system is the problem necessarily solved for IT managers. The products of virtual tape library and its solved scheme are presented in order to solve the problem. The paper mainly introduced the working principle, adaptive environment and products of some major firms of the virtual tape base in order to make the readers know more the new technique.