From owner-freebsd-stable@FreeBSD.ORG Sun Mar 30 03:10:21 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 307B3106564A for ; Sun, 30 Mar 2008 03:10:21 +0000 (UTC) (envelope-from karl@FS.denninger.net) Received: from FS.denninger.net (wsip-70-169-168-7.pn.at.cox.net [70.169.168.7]) by mx1.freebsd.org (Postfix) with ESMTP id D34178FC12 for ; Sun, 30 Mar 2008 03:10:20 +0000 (UTC) (envelope-from karl@FS.denninger.net) Received: from fs.denninger.net (localhost [127.0.0.1]) by FS.denninger.net (8.14.2/8.13.1) with SMTP id m2U3AHOK033426 for ; Sat, 29 Mar 2008 21:10:17 -0600 (CST) (envelope-from karl@FS.denninger.net) Received: from fs.denninger.net [127.0.0.1] by Spamblock-sys (LOCAL); Sat Mar 29 21:10:17 2008 Received: (from karl@localhost) by FS.denninger.net (8.14.2/8.13.1/Submit) id m2U3AHim033419 for freebsd-stable@freebsd.org; Sat, 29 Mar 2008 21:10:17 -0600 (CST) (envelope-from karl) Date: Sat, 29 Mar 2008 21:10:17 -0600 From: Karl Denninger To: freebsd-stable@freebsd.org Message-ID: <20080330031017.GA32063@FS.denninger.net> Mail-Followup-To: freebsd-stable@freebsd.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.1i Organization: Karl's Sushi and Packet Smashers X-Die-Spammers: Spammers cheerfully broiled for supper and served with ketchup! Subject: gjournal.... X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 30 Mar 2008 03:10:21 -0000 Hi folks; Wondering about the various pros and cons of using the "gjournal" GEOM provider... and if you can "promote" and existing system using it, or whether you need to build something anew. The scenario is a fairly busy and large system with PostgreSQL database data on it. The data is currently on a 2-disk gmirror pair to provide data safety in the event of a disk failure. I am using softupdates right now. If I'm reading the docs correctly, I can't put gjournal in use on the existing filesystem, and need to effectively build a new disk structure then copy over the data onto it. Can you boot from a gjournal'd root? Ideas please, pros and cons of the various alternatives, etc..... thanks! -- -- Karl Denninger (karl@denninger.net) Internet Consultant & Kids Rights Activist http://www.denninger.net My home on the net - links to everything I do! http://scubaforum.org Your UNCENSORED place to talk about DIVING! http://genesis3.blogspot.com Musings Of A Sentient Mind