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File Recovery Techniques

By Wietse Venema, December 01, 2000

Wietse investigates the topic of file recovery by reconstructing past behavior and examining deleted file access time patterns and other attributes.
Dec00: File Recovery Techniques

Figure 1: On-disk layout of a typical UNIX filesystem. Storage space is divided into multiple zones. Each zone contains its own allocation bitmaps, file data blocks, and file attribute (inode) blocks. Normally, information about a small file is stored entirely within one zone. The figure is not drawn to scale.



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