From owner-freebsd-questions@FreeBSD.ORG Thu Apr 12 07:54:48 2007 Return-Path: X-Original-To: questions@freebsd.org Delivered-To: freebsd-questions@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id E99B916A404 for ; Thu, 12 Apr 2007 07:54:48 +0000 (UTC) (envelope-from illoai@gmail.com) Received: from ug-out-1314.google.com (ug-out-1314.google.com [66.249.92.173]) by mx1.freebsd.org (Postfix) with ESMTP id 8386013C484 for ; Thu, 12 Apr 2007 07:54:48 +0000 (UTC) (envelope-from illoai@gmail.com) Received: by ug-out-1314.google.com with SMTP id 71so263655ugh for ; Thu, 12 Apr 2007 00:54:47 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=lUEO2r+cycryiiAOUf36hQop7QNiKwpL6eQrwmGexZdzOwx3y0Nd7lvNULNta0W0CBWAA9i4OckxLQhDS/08Sp+pWM+hIrHY047LJz498uTAJjQCjZD/oM6obyHmDkLS942BgO4bLfWKkumaVjotk3r/hfSRJU69GqaUXamhzUc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=uflXZVLv2gN/+dueTlQBgjTb3zbXNBc7Za+oeHl+XoCUF29Yxsd3Hc8J1KwMuLeUzUa4LaGgA2z+R5D0F0qr1LzGXvV/zdR0Ah8f+U3PaDiKqPdGJtCbVKzCMXIy3IG0g26W+CrPTLbAPqNOdzL0+jLZ/+NGFrEi3/i4ATXwORQ= Received: by 10.82.177.3 with SMTP id z3mr1879755bue.1176364487234; Thu, 12 Apr 2007 00:54:47 -0700 (PDT) Received: by 10.82.175.1 with HTTP; Thu, 12 Apr 2007 00:54:47 -0700 (PDT) Message-ID: Date: Thu, 12 Apr 2007 02:54:47 -0500 From: "illoai@gmail.com" To: "Toomas Aas" In-Reply-To: <461C81F1.4030208@raad.tartu.ee> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <461C81F1.4030208@raad.tartu.ee> Cc: questions@freebsd.org Subject: Re: gmirror device numbers 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: Thu, 12 Apr 2007 07:54:49 -0000 On 11/04/07, Toomas Aas wrote: > Hello! > > I have a server with gmirror volumes. Backup of this server is being done > with Amanda, which uses GNU tar and its --listed-incremental option > (snapshot files) in order to do incremental backups. > > It seems that gmirror devices get a different 'device number' on each boot > (each time the gmirror is created). Since the device number is stored in > GNU tar's snapshot file, it effectively means that after rebooting GNU tar > sees all files as having been changed since previous backup. This causes > huge incremental backups. > > Is there a way to force a gmirror device to have a 'fixed' device number? Not to sound too thick, but what do you mean by "device number"? Is this the Geom name: or ID: field when you type: gmirror list -- --