From owner-freebsd-geom@FreeBSD.ORG Mon Aug 28 17:30:43 2006 Return-Path: X-Original-To: freebsd-geom@freebsd.org Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7AA2A16A4DA for ; Mon, 28 Aug 2006 17:30:43 +0000 (UTC) (envelope-from anderson@centtech.com) Received: from mh2.centtech.com (moat3.centtech.com [207.200.51.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id 710DE43D79 for ; Mon, 28 Aug 2006 17:30:35 +0000 (GMT) (envelope-from anderson@centtech.com) Received: from [10.177.171.220] (neutrino.centtech.com [10.177.171.220]) by mh2.centtech.com (8.13.1/8.13.1) with ESMTP id k7SHUVdw037225; Mon, 28 Aug 2006 12:30:32 -0500 (CDT) (envelope-from anderson@centtech.com) Message-ID: <44F32836.5070305@centtech.com> Date: Mon, 28 Aug 2006 12:30:30 -0500 From: Eric Anderson User-Agent: Thunderbird 1.5.0.5 (X11/20060802) MIME-Version: 1.0 To: Christian Laursen References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV 0.87.1/1745/Mon Aug 28 10:02:21 2006 on mh2.centtech.com X-Virus-Status: Clean Cc: freebsd-geom@freebsd.org Subject: Re: Geom class project idea - geom_cow X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Aug 2006 17:30:43 -0000 On 08/28/06 12:29, Christian Laursen wrote: > Ivan Voras writes: > >> Christian Laursen wrote: >>> I have an idea for a geom class that I think could be useful in a number >>> of scenarios. >>> >>> The basic idea is that it takes two existing providers and uses the first >>> one as a starting point and the other one to keep changes to the first >>> one using copy-on-write. >> It's been discussed, and it's even on my tentative todo list (though I >> can't even say when I'll have the time&resources to start...). It's even >> done by my "old" gjournal project, but that aspect of it is undertested >> and probably buggy. > > I was not aware of that. I guess I'll have to take a look at Pawels gjournal > and see if the functionality is still there. > It isn't in Pawels' gjournal, only Ivan's. Eric -- ------------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology Anything that works is better than anything that doesn't. ------------------------------------------------------------------------