In view of the present insecurity factors in computer network, this paper analyzes data disaster recovery technology, puts forward an effective data backup and disaster recovery solution of OA system.

针对目前计算机网络中的不安全因素，研究在电力系统中利用灾难恢复技术，为保证OA系统数据安全可靠而采取的措施，提出OA系统的数据备份及灾难恢复方案。

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Disk storage medium such data recovery method research evidence With the popularization of computer and network, high-tech crime rampant, try to hide evidence of the crime.

硬盘等贮存介质中数据恢复办法的研讨取证随着计算机和网络的提高，高科技立功日益猖獗，不法分子会想方设法掩盖立功证据。

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Victims should be provided for the pirates promised to send a useful exchange of data recovery or repair the computer ransom.

受害者是应该为海盗提供的承诺，将派遣一个实用的数据恢复或修复电脑交换赎金。

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