From owner-freebsd-questions@FreeBSD.ORG Thu Feb 4 21:30:55 2010 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A89821065679 for ; Thu, 4 Feb 2010 21:30:55 +0000 (UTC) (envelope-from mahlerrd@yahoo.com) Received: from web51004.mail.re2.yahoo.com (web51004.mail.re2.yahoo.com [206.190.38.135]) by mx1.freebsd.org (Postfix) with SMTP id 5F6A18FC24 for ; Thu, 4 Feb 2010 21:30:55 +0000 (UTC) Received: (qmail 53206 invoked by uid 60001); 4 Feb 2010 21:30:54 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1265319054; bh=DNyYjWt1Xyxxs2O7GCef4AkXzB3K40M3zkoPnTCZBDw=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:References:Date:From:Reply-To:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type; b=fxfq4Bv/xLxhlm8hCozhIgydNX0zBjNJrTAur5wFa/c+nHg/gBtL6fncqdAZL+qkTWAvGWwP5UvHNl6ODVMNRhjHEv+CXOIu3crZce3aClq3EBhps3/GO8VMIYg1lMYQ7fl1/IUSjZAujWZgBPs2kalwkYUJRTdD2o+kPMQYxMg= DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:X-YMail-OSG:Received:X-Mailer:References:Date:From:Reply-To:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type; b=Cogr3uDNaV5l+O+ggoJUzBOtikW/IbL+DXyMhGrlLy5O7K3SExErtSOADK9NC2As39Hik6vdiowehCDLzXwMSJi19aeG4UP32tDNP+TFZ/Ty9b2BcIy03MGVglWVVzJsK+ZrdOZ+RIIWyEto6a8+xFpUKk2KpmeW8wnWJ89GTgg=; Message-ID: <482016.53112.qm@web51004.mail.re2.yahoo.com> X-YMail-OSG: OrCqUskVM1lSgGqvyrwNhh6cwRKFdZyOO0.385Ktf1O.sFahkjNESZTZdlft3wLMXUpDmCWei8dOf7C8oOm2kngcmIAzU6RDqmELZAAhH_14aqyZQYtwkGn3MgWdY6FvF5SS_ljemT4iEuZhAmP0sRKThBWChitvrRCormKm1F.asjgLb2qpxQczOi9y_2wlXEbmPeVG1XWZxqcWj_wwkwq0iDzORKi5xpAurvi.9pgL7NzgdnfJq7Vvs4tILxy2IWvQro9PJZsSk7W9.SFPhycQM77lcXkVQibj9P9PDDpkvTX07w5LaDxjxwZ_gXNsHFO7vcvYlcL0IPZTnZ9e.lBPQBCu6g-- Received: from [74.40.57.42] by web51004.mail.re2.yahoo.com via HTTP; Thu, 04 Feb 2010 13:30:54 PST X-Mailer: YahooMailRC/272.7 YahooMailWebService/0.8.100.260964 References: <4B694A52.4080306@stillbilde.net> <4B69BD02.5060305@gmail.com> <4B69CCC8.2060105@stillbilde.net> <4B6AE93C.5090803@stillbilde.net> <4B6AFC7A.9040200@infracaninophile.co.uk> <4B6B0E7A.3080207@stillbilde.net> Date: Thu, 4 Feb 2010 13:30:54 -0800 (PST) From: Richard Mahlerwein To: "Svein Skogen \(Listmail Account\)" In-Reply-To: <4B6B0E7A.3080207@stillbilde.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: FreeBSD-Questions Subject: Re: Backup and FreeBSD/ZFS X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Richard Mahlerwein List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Feb 2010 21:30:55 -0000 ----- Original Message ---- >From: Svein Skogen (Listmail Account) >To: freebsd-questions@freebsd.org >Sent: Thu, February 4, 2010 12:14:18 PM >Subject: Re: Backup and FreeBSD/ZFS > >On 04.02.2010 17:57, Matthew Seaman wrote: >> On 04/02/2010 15:35, Svein Skogen (Listmail Account) wrote: > >Alas, a full backup of the current disk setup takes 4 tapes and ... I >really don't feel like staying up one entire night per week to swap >tapes (both for the backup and the verify). The autoloader I've got now >(8 slot, 1 drive, LTO-3, SAS) works fairly well with the currently >installed OS (Windows Storage Server 2008), giving about 60MB/Sec >sustained transfer rate. > >> LTO4 tapes are rated at 800--1600GB depending on achievable compression, >> so they might be big enough on their own. As image formats are already >> internally compressed, I'd expect them to come in at the low end of >> that, which might be tight. Worth trying out if you can get a drive on >> evaluation. > >A standalone LTO-4 might be a good alternative, if I didn't already have >the tapeloader. ;) Some (certainly not all) autoloaders can be upgraded/converted from LTO-3 to LTO-4 for about the same price as a standalone LTO-4. We use a windows based server for backups at work (nothing but a maintenance nightmare, let me tell you), and at home I have only a single-drive tape backup on my FreeBSD box (never a hiccup!) so I haven't been able to test the following, but would dump be able to understand the EOT and just be able to ask for a new one in the autoloader, which should be able to be set up to automatically move a new tape into the drive until it ran out? For what it's worth, I found Amanda unnecessarily complicated for my simple needs at home. I tried Bacula as well and it seemed easier, but not enough to make it worth it. I just dump the stuff I need to back up externally straight to tape on a weekly cron job. They still fit on one tape. :)