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Date:      Tue, 20 Dec 2016 12:36:52 +0000
From:      Malcolm Matalka <mmatalka@gmail.com>
To:        Aleksandr Miroslav <alexmiroslav@gmail.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: zfs (zxfer) replication -- "holes" in backups?
Message-ID:  <867f6u22vv.fsf@gmail.com>
In-Reply-To: <CACcSE1xG%2B6wLoGwjNDAcadcdCxFD6sAC2G%2BXkNn911myfosgKw@mail.gmail.com> (Aleksandr Miroslav's message of "Mon, 19 Dec 2016 20:13:22 -0800")
References:  <CACcSE1znx_3H=71hT_3TOu-tMhWjkm7_sx-nxLQA83iz4aeR6w@mail.gmail.com> <CACcSE1xG%2B6wLoGwjNDAcadcdCxFD6sAC2G%2BXkNn911myfosgKw@mail.gmail.com>

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Aleksandr Miroslav <alexmiroslav@gmail.com> writes:

> On Fri, Dec 16, 2016 at 5:08 PM, Aleksandr Miroslav <alexmiroslav@gmail.com>
> wrote:
>
>> I'm using a pkg called zfstools to take my snapshots. It takes snapshots
>> called frequent, hourly, daily, weekly, and monthly.
>>
>
> The problem may have been even more sillier. The snapshots taken by the
> package zfstools depends on this property:
>
> $ zfs get all zroot/usr/home|grep auto-snapshot
> zroot/usr/home  com.sun:auto-snapshot  true                   local
>
> It turns out that when I sent my snapshots to my backup machine, I never
> turned off this property, the backup machine also had zfstools installed,
> and so was taking snapshots of my backupsnaphots. Hence the holes. I've
> since cleaned this up, and will let backups run for a few days and see if
> this fixes the problem.

I ran into this problem where the snapshots the machine that was backing
up to named the snapshots the same thing so zxfer thought the transfer
didn't need to happen.  I "solved" this by putting the hostname in the
snapshot name.  There is probably a better way though.

>
> Alex
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