From mboxrd@z Thu Jan 1 00:00:00 1970 From: Graeme Sheppard Subject: Re: Patent or not patent a new idea Date: Tue, 26 Jun 2007 15:20:09 +1200 Message-ID: <468085E9.70804@rillion.net> References: <46803772.7020408@rillion.net> <46806CCB.6020708@rillion.net> <18048.30679.872740.744997@notabene.brown> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org To: Neil Brown Return-path: Received: from server.rillion.net ([207.210.78.215]:38990 "EHLO rillion.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752293AbXFZDU3 (ORCPT ); Mon, 25 Jun 2007 23:20:29 -0400 In-Reply-To: <18048.30679.872740.744997@notabene.brown> Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Neil Brown wrote: > On Tuesday June 26, nodes@rillion.net wrote: >> Posting it here seems the best thing to do. >> >> To the inventor goes naming privilege and I'm calling this one softer raid. >> It is a form of storage raid implemented in software, as contrasted to >> software and hardware raid which are dependent on using required hardware. >> >> To create a loop filesystem is straight forward. The commands are dd, >> mkfs.*, mount -o loop. Basically what I propose is that the image file is >> copied to another harddisk (in the case of ide not on the same cable) and >> it too is mounted in conjunction of the original with cooperation. When a >> read request for a block of say 100k is made, the kernel pulls 50k from >> each disk - maybe a simple doubling of throughput. > > Sounds a lot like "RAIF" - ask google for details. I did not know about RAIF. RAIF "merges" separate filesystems? That is a good idea in itself. My idea is for driver that provides a filesystem from image files it controls. Because it knows these resources it uses access in tandem to attain performance.