Date: Mon, 8 Jul 2013 14:33:22 -0700 From: Freddie Cash <fjwcash@gmail.com> To: Jeremy Chadwick <jdc@koitsu.org> Cc: freebsd-fs <freebsd-fs@freebsd.org> Subject: Re: EBS snapshot backups from a FreeBSD zfs file system: zpool freeze? Message-ID: <CAOjFWZ4CcGP-5axPewCA0hhqxoFuQ1E9zvZyqGWPbWsW1d5jOw@mail.gmail.com> In-Reply-To: <20130708210145.GA89605@icarus.home.lan> References: <CA%2BtpaK1jQuKneQsxkVfxJGzXdPdLZfqBM1QWQ0e19nK5t71t1Q@mail.gmail.com> <87ehbg5raq.wl%berend@pobox.com> <20130703055047.GA54853@icarus.home.lan> <6488DECC-2455-4E92-B432-C39490D18484@dragondata.com> <CADBaqmihCB5JP01hLwXTWHoZiJJ5-jkT-Ro=oDwOcKZT_zvEKA@mail.gmail.com> <A5A66641-5EF9-454E-A767-009480EE404E@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>
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On Mon, Jul 8, 2013 at 2:01 PM, Jeremy Chadwick <jdc@koitsu.org> wrote: > On Tue, Jul 09, 2013 at 08:06:25AM +1200, Berend de Boer wrote: > > >>>>> "Markus" == Markus Gebert <markus.gebert@hostpoint.ch> 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
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