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Chunkfs: Implementation and Results

Amit Gud (gud@eth.net)

ChunkFS is about reducing file system checking (fsck) time. Time taken by fsck is roughly proportional to the size of the disk and amount of data on it. This factor is invariably going to increase over the coming period as the disk sizes are getting larger and larger, with limited increase in bandwidth and almost negligible improvement in seek latency. This BOFS is about an approach that can be taken at file system design time to reduce the fsck time, which is unavoidable. http://www.cis.ksu.edu/~gud/docs/chunkfs-hotdep-val-arjan-gud-zach.pdf explains more what chunkfs is about. With the experience and experimental results of implementing chunkfs on FUSE and ext2 kernel driver, this BOFS is aimed at discussing the existing implementation approach as well as further design and development of a generic chunkfs framework which can work well with the existing file systems and the VFS layer.

Please join this discussion if file system design and development excites you.