【摘要】 在高度信息化的今天,各种数据存储设备已经取代了传统的纸张,成为数据的最重要载体,而各种自然灾害,例如地震,都是很难被预测的,它们对于数据的安全造成了极大的威胁,因此无论对于个人还是企业或是政府,灾难前的数据备份以及灾难后的数据修复都显得十分重要。更多还原

【Abstract】 It is a digital information world.Paper was substituted by kinds of digital media.But the disaster,especially the earthquake,is difficult to forecast.These disaster has great harmful to the data,and it is important for commercial and public institution to highlight Data backup before the disaster and Data recovery after the disaster.更多还原