From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Armbruster Subject: Device-mapper target driver for Write tracking Date: Wed, 19 Oct 2016 12:53:54 +0200 Message-ID: <20161019105354.GA17598@sirius.lan> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: dm-devel@redhat.com Cc: info@xp8.de List-Id: dm-devel.ids Hi List, I'm looking for a device-mapper target driver giving me the possibility to track/log WRITE requests. The idea is to track those WRITE requests within a Bitmap e.g. 1:LV-EXTEND (for LVM2). I read already the device-mapper documentation under https://www.kernel.org/doc/Documentation/device-mapper/ but didn't find an appropriate module which would suite my needs. Is there any work happening on this to leverage? Any kind of help is appreciated. Many thanks in advance. cheers, Daniel gpg --keyserver keys.gnupg.net --recv-key EF60F5CC