From owner-freebsd-questions@FreeBSD.ORG Sun Feb 21 06:14:51 2010 Return-Path: Delivered-To: questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5B2621065672 for ; Sun, 21 Feb 2010 06:14:51 +0000 (UTC) (envelope-from dan@dan.emsphone.com) Received: from email1.allantgroup.com (email1.emsphone.com [199.67.51.115]) by mx1.freebsd.org (Postfix) with ESMTP id 2263C8FC12 for ; Sun, 21 Feb 2010 06:14:50 +0000 (UTC) Received: from dan.emsphone.com (dan.emsphone.com [199.67.51.101]) by email1.allantgroup.com (8.14.0/8.14.0) with ESMTP id o1L6Enpk093577 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sun, 21 Feb 2010 00:14:50 -0600 (CST) (envelope-from dan@dan.emsphone.com) Received: from dan.emsphone.com (smmsp@localhost [127.0.0.1]) by dan.emsphone.com (8.14.4/8.14.3) with ESMTP id o1L6EnC9022463 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sun, 21 Feb 2010 00:14:49 -0600 (CST) (envelope-from dan@dan.emsphone.com) Received: (from dan@localhost) by dan.emsphone.com (8.14.4/8.14.3/Submit) id o1L6EnBG022462; Sun, 21 Feb 2010 00:14:49 -0600 (CST) (envelope-from dan) Date: Sun, 21 Feb 2010 00:14:49 -0600 From: Dan Nelson To: Aiza Message-ID: <20100221061449.GK70798@dan.emsphone.com> References: <4B80ABBA.9000707@comclark.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4B80ABBA.9000707@comclark.com> X-OS: FreeBSD 7.2-STABLE User-Agent: Mutt/1.5.20 (2009-06-14) X-Virus-Scanned: clamav-milter 0.95.3 at email1.allantgroup.com X-Virus-Status: Clean X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.0.2 (email1.allantgroup.com [199.67.51.78]); Sun, 21 Feb 2010 00:14:50 -0600 (CST) X-Scanned-By: MIMEDefang 2.45 Cc: freebsd-questions Subject: Re: Dump questions X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 21 Feb 2010 06:14:51 -0000 In the last episode (Feb 21), Aiza said: > 1. Using the -L flag to create a snapshot of the > live running file system. > > Does this mean that a complete copy of the file > system is written to .snap directory? No; that would be a "copy". Snapshots only copy blocks as they are modified on the parent filesystem, so their size is determined by how much data is modified since the snapshot was created. -- Dan Nelson dnelson@allantgroup.com