Date: Fri, 15 Dec 2006 16:02:21 -0800 (PST)
From: David Lang <dlang@digitalinsight.com>
To: Nikolai Joukov <kolya@cs.sunysb.edu>
cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
       unionfs@filer.fsl.cs.sunysb.edu, fistgen@filer.fsl.cs.sunysb.edu
Subject: Re: [ANNOUNCE] RAIF: Redundant Array of Independent Filesystems
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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.

David Lang
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