From owner-freebsd-fs@FreeBSD.ORG Mon Jul 8 21:33:23 2013 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 6F981D59 for ; Mon, 8 Jul 2013 21:33:23 +0000 (UTC) (envelope-from fjwcash@gmail.com) Received: from mail-qc0-x22e.google.com (mail-qc0-x22e.google.com [IPv6:2607:f8b0:400d:c01::22e]) by mx1.freebsd.org (Postfix) with ESMTP id 3226E1A91 for ; Mon, 8 Jul 2013 21:33:23 +0000 (UTC) Received: by mail-qc0-f174.google.com with SMTP id m15so2580655qcq.19 for ; Mon, 08 Jul 2013 14:33:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=i+k/1pXDN6BfUtD+tQPpFciauU24D9iDsK4I+3mY/Dw=; b=L5OUb+865GPbNoVU9uUVDiTj9Plq7VoGuK0LFhD1BtprsEsE7locnww3moW3TsR5eV fqUrQki5sqLRjkQVkOiz91w2j5jLbd2ltOKH2GJPHh1R0mD7wioackoeVHl8ahvwaKGv OnwK9EU+t3FQbeyI2mEuU6anLpmny40DbGA1YwE+nfaYFF4mYqoWK4JSpWLoSTLq0a0k 2OJqfAyD6NeUCDC4P0DW6ne4/ib71xdPfdLZR2iBVNP4GfFrumE6UoXEvRkrPORZZz+1 K4HnH+sqFz9ZodMzEbdEyHuFqboNlnZwoEeLFX4oY7dkMnGgmvYgxPdKfI2d0ei6SIME EDpg== MIME-Version: 1.0 X-Received: by 10.49.85.4 with SMTP id d4mr18600731qez.10.1373319202701; Mon, 08 Jul 2013 14:33:22 -0700 (PDT) Received: by 10.49.49.135 with HTTP; Mon, 8 Jul 2013 14:33:22 -0700 (PDT) In-Reply-To: <20130708210145.GA89605@icarus.home.lan> References: <87ehbg5raq.wl%berend@pobox.com> <20130703055047.GA54853@icarus.home.lan> <6488DECC-2455-4E92-B432-C39490D18484@dragondata.com> <14A2336A-969C-4A13-9EFA-C0C42A12039F@hostpoint.ch> <87zjty11gn.wl%berend@pobox.com> <41CC5720-B1EA-4841-8BA5-893F4A628EAD@hostpoint.ch> <877gh024vy.wl%berend@pobox.com> <20130708210145.GA89605@icarus.home.lan> Date: Mon, 8 Jul 2013 14:33:22 -0700 Message-ID: Subject: Re: EBS snapshot backups from a FreeBSD zfs file system: zpool freeze? From: Freddie Cash To: Jeremy Chadwick Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: freebsd-fs X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 08 Jul 2013 21:33:23 -0000 On Mon, Jul 8, 2013 at 2:01 PM, Jeremy Chadwick wrote: > On Tue, Jul 09, 2013 at 08:06:25AM +1200, Berend de Boer wrote: > > >>>>> "Markus" == Markus Gebert writes: > > Markus> What you really need in that case is the ability to > > Markus> snapshot all EBS disks as group. > > > > Which Linux offers. > > And now I shall quote your original mail that started this thread: > > > I'm experimenting with building a FreeBSD NFS server on Amazon AWS > > EC2. I've created a zpool with 5 disks in a raidz2 configuration. > > > > How can I make a consistent backup of this using EBS? > > Therefore, the answer/solution for you at this stage seems to be: use > Linux. Linux does what you need -- it offers you guest-level utilities > that interface with the proprietary storage system back-end (EBS) that > is offered by your choice of hosting vendor (Amazon). So what's the > problem with using Linux? Why sound so apathetic-yet-confrontational > (re: "Linux offers this, FreeBSD doesn't")? > Something else to consider is that this may not be a FreeBSD issue at all, but a filesystem/storage system issue. Meaning, if you use ZFS on Linux ... EBS backups will not work. Same if you try to use Solaris or Illumos or any other ZFS-enabled OS that will run in Amazon's cloud. At which point, it would make more sense taking the discussion upstream to Illumos to find a way to quiesce a ZFS pool in such a way that EBS backups would work. Once that is done, then it can filter downstream to FreeBSD, Linux, and others. -- Freddie Cash fjwcash@gmail.com