XFS文件系统的删除文件的恢复技术研究  

Research on Recovery Technology of XFS Deleted File

作　　者：蓝朝祥 田庆宜 沈长达[1] 吴少华[1] LAN Chao-xiang TIAN Qing-yi SHEN Chang-da WU Shao-hua(Xiamen Meiya Pico Information Co. ,Ltd. ,Xiamen 361008,China Chongqing Municipal Public Security Bureau, Chongqing 401121, China)

机构地区：[1]厦门市美亚柏科信息股份有限公司,厦门361008 [2]重庆公安局网络安全保卫总队,重庆401121

出　　处：《计算机科学》2016年第B12期190-193,共4页Computer Science

摘　　要：XFS是由SGI开发的高效的64位文件系统，原在IRIX中，后移植到Linux上，是一个高性能的日志型文件系统，能够在断电以及操作系统崩溃的情况下保持系统的一致性。该文件系统有着高性能事务、高效的空间利用、卓越的10带宽传输以及可扩展性等特点，在需要同时快速处理大型文件和某些监控厂商的系统上得到了较为广泛的应用。目前，国内外对XFS文件系统删除文件的恢复的研究较少，基本没有与恢复相关的技术资料。在详细分析了该文件系统结构的基础上进行了删除数据恢复的研究，提出了一种XFS删除文件恢复方法，该方法在文件数据没有被覆盖的情况下能够完整地恢复文件。XFS is a high-performance 64 bit journaling file system created by Silicon Graphics, Inc（SGI） in 1993. It was used for IRIX system. It＇s a kind of very good file system,and also one of the earlier log file system on Linux. The file system has advanced logging mechanism, high disk utilization, fast search pattern and high performance characteristics. It is widely used on the system that requirement rapid processing of large files and many small files or some CCTV. At present, the domestic and foreign research on XFS file system delete data recovery is less and there is no corresponding recovery technique documentation. Based on the understanding of the file system structure and research, this paper proposed a XFS delete file recovery method, and the method in cases file is not overwritten to be able to complete recovery.

关 键 词：数据恢复 XFS文件系统 日志文件 删除恢复 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]