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Date:      Thu, 15 Dec 2016 09:40:27 -0800
From:      Aleksandr Miroslav <alexmiroslav@gmail.com>
To:        Jon Radel <jon@radel.com>, freebsd-questions@freebsd.org
Subject:   Re: zfs (zxfer) replication -- "holes" in backups?
Message-ID:  <CACcSE1wvofq4ttTjAiD8hB-PnYsmh2z5qGOBYYFSzQzKymYZKQ@mail.gmail.com>
In-Reply-To: <ec2d8d49-9e5a-2ef7-fdbd-ac8bfb0c7cc5@radel.com>
References:  <CACcSE1xb1k330wJ6tyvQ2Vfv8bFKT97cbDx=OQaES8V8pOQ9DA@mail.gmail.com> <ec2d8d49-9e5a-2ef7-fdbd-ac8bfb0c7cc5@radel.com>

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On Tue, Dec 13, 2016 at 10:36 PM, Jon Radel <jon@radel.com> wrote:
> > Occasionally, for whatever reason, zxfer can't replicate a particular snapshot.
>
> In particular, might you be using the -d and -F options, or more
> precisely, failing to do so?

Just checked, and all my backup scripts use both of those switches.

> zxfer -vFdk -o setuid=off,compression=lz4 -T mirrors@filer.radel.com -R
> zroot pool1/mirrors/stream.radel.com
>
> I do *not* see the problem you describe

Here is what my backup script looks like:

    /usr/local/sbin/zxfer -dFkPv -g 376 -T root@remote.example.org -R
zroot zroot/backups

I think I have mostly the same switches as you.

Alex



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