Date: Tue, 15 Dec 2015 11:06:47 +0100 From: "Ronald Klop" <ronald-lists@klop.ws> To: freebsd-fs@freebsd.org Subject: Re: is there way to do "offline" mirror Message-ID: <op.x9ojplzdkndu52@ronaldradial.radialsg.local> In-Reply-To: <20151215004145.69572@smtp.new-ukraine.org> References: <20151215004145.69572@smtp.new-ukraine.org>
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On Tue, 15 Dec 2015 23:41:45 +0100, Zeus Panchenko <zeus@ibs.dn.ua> wrote: > greetings, > > is there way to do "offline" mirror? > > what I mean: > > host A has zpool with mirror of two md(4) file backed, > snapshots are made regularly > > host B has no network connection with host A > > what is the correct way to get on host B the same mirror of host A? > > variants I suggest: > > 1. regularly copy files of the zpool mirror from A to B? > > 2. regularly do something like: > on A: zfs sent snapshots@after-last-B-host-mirror-sync > diff-file > on B: cat diff-file | zfs receive > > 3. something else ... Option 2 is nice and efficient. Need to properly administrate the diff-files so you don't miss anything. Bonus: you can even zfs diff the diff-file to see what changed. Regards, Ronald.
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