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Date: Mon, 18 Apr 2011 11:12:38 -0700
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From: Artem Belevich <art@freebsd.org>
To: "Vladislav V. Prodan" <universite@ukr.net>
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Cc: freebsd-fs@freebsd.org
Subject: Re: Prompt to synchronize two volumes ZFS
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On Mon, Apr 18, 2011 at 10:42 AM, Vladislav V. Prodan
<universite@ukr.net> wrote:
> I have 1TB of data in server1::tank1/backup.
> This volume should be *quickly* synchronized with server2::tank2/backup
>
> =A0 =A0 =A0 =A0server1::tank1/backup =3D=3D> server2::tank2/backup
>
> How quickly and without having to download the channel to synchronize the
> both volumes.
>
> This command will transfer the entire amount of data?
> server1# zfs send tank1/backup | ssh server2 zfs recv tank2/backup
>
> Sync via rsync long and heavily loads the CPU :(
> Want to use all the facilities ZFS.

This page outlines ZFS replication process fairly well:
http://wikitech-static.wikimedia.org/articles/z/f/s/Zfs_replication.html

--Artem