From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761756AbYDSXjd (ORCPT ); Sat, 19 Apr 2008 19:39:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751904AbYDSXjZ (ORCPT ); Sat, 19 Apr 2008 19:39:25 -0400 Received: from fmmailgate09.web.de ([217.72.192.184]:59133 "EHLO fmmailgate09.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751816AbYDSXjY (ORCPT ); Sat, 19 Apr 2008 19:39:24 -0400 Date: Sun, 20 Apr 2008 01:39:21 +0200 Message-Id: <246175158@web.de> MIME-Version: 1.0 From: devzero@web.de To: linux-kernel@vger.kernel.org Cc: djani22@netcenter.hu Subject: Re:Sparse file question for data recovery Organization: http://freemail.web.de/ X-Provags-Id: V01U2FsdGVkX186uQseuhNu/fdND8OhAq9EgA+oOh+EzRv7XKTaM5NmnrJrN OocD5B7wlybqISEeMuhR8/Rk0zbj521xkqfaFC3daleabZdXkk= Content-Type: text/plain; charset=iso-8859-15 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org maybe cowloop ? ( http://www.atcomputing.nl/Tools/cowloop/index.html ) there is also appropriate feature in mainline (device-mapper snapshots, see Documentation/device-mapper/snapshot.txt ) maybe the thread at http://marc.info/?l=linux-kernel&m=114137441221113&w=2 is worth taking a look. roland List: linux-kernel Subject: Sparse file question for data recovery From: "Janos Haar" Date: 2008-04-19 22:15:15 Message-ID: 09eb01c8a26a$dbf5eee0$0404a8c0 () dcccs [Download message RAW] Hello list, It is a way to use sparse files (or sg. else) to try to recover some big block device when it is readonly? I mean the original device is marked readonly, and only the changes are saved for the sparse file. This is useful if i want to only try to repair corrupted (or miss-assembled) raid arrays, image from damaged hdd, etc... Like only save the "undo" information independently from the repairing program. I only know that with nbd-server, but i wish to use a simple local solution. Somebody have an idea? :-) Thanks, Janos Haar _________________________________________________________________________ In 5 Schritten zur eigenen Homepage. Jetzt Domain sichern und gestalten! Nur 3,99 EUR/Monat! http://www.maildomain.web.de/?mc=021114