zfs (zxfer) replication -- "holes" in backups?

Aleksandr Miroslav alexmiroslav at gmail.com
Tue Dec 20 04:13:24 UTC 2016

On Fri, Dec 16, 2016 at 5:08 PM, Aleksandr Miroslav <alexmiroslav at gmail.com>

> 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.


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