计算机硬盘故障数据恢复和备份的几种方法

实验室计算机维护的核心是硬盘的维护及数据的备份、恢复和拯救。硬盘中都存放着大量的有用数据，而硬盘又是一个易出毛病的部件。除了有效地保存硬盘中的数据备份工作以外，还要学会在硬盘出现故障时如何救活硬盘，或者提取其中的有用数据，把损失降到最低。该文从技术角度总结硬盘的常见故障及其数据的恢复和备份方法。

Methods of Hard Disk Data and Back-up

The core of the laboratory computer maintenance is the hard disk maintenance of data restoration and back - up. Almost all hard disks hold a lot of useful data, however, these parts run into trouble easily. Apart from backing up in the hard disk successfully, we still need to learn how to save the troubled hard disk or withdraw the useful data from it, and to minimize the loss. This paper will summarize some common problems of hard disks and a few methods of the data restoration and back - up.