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Chunkfs improves file system reliability, shortens repair time, and increases data availability by dividing the file system into chunks, small fault-isolation domains which can be checked and repaired almost entirely independently of other chunks. This allows fast, incremental, and partially on-line file system checking and repair. In addition, the chunkfs architecture makes many other useful file system features feasible, such as on-line resizing, on-line defragmentation, and per-chunk on-disk formats.

Valerie Henson 2006-10-18