On Wed, 13 Dec 2006, Nikolai Joukov wrote:
We have designed a new stackable file system that we called RAIF: Redundant Array of Independent Filesystems. Similar to Unionfs, RAIF is a fan-out file system and can be mounted over many different disk-based, memory, network, and distributed file systems. RAIF can use the stable and maintained code of the other file systems and thus stay simple itself. Similar to standard RAID, RAIF can replicate the data or store it with parity on any subset of the lower file systems. RAIF has three main advantages over traditional driver-level RAID systems:
this sounds very interesting. did you see the paper on chunkfs? http://www.usenix.org/events/hotdep06/tech/prelim_papers/henson/henson_html/
this sounds as if it may be something that you would be able to make a functional equivalent to chunkfs with your raid0 mode.
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