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Pim van Pelt
2024-08-05 01:43:55 +02:00
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@ -59,7 +59,7 @@ main ways: borg(1) and zrepl(1).
* **Hypervisor hosts** make a daily copy of their entire filesystem using **borgbackup(1)** to a set of two remote fileservers. This way, the
important file metadata, configs for the virtual machines, and so on, are all safely stored remotely.
* **Virtual machines** are running on ZFS blockdevices on either the SSD pool, or the disk pool, or both. Using a tool called **zrepl(1)**
(which I described a little bit in a [[previous post]({% post_url 2022-10-14-lab-1 %})]), I create a snapshot every 12hrs on the local
(which I described a little bit in a [[previous post]({{< ref "2022-10-14-lab-1" >}})]), I create a snapshot every 12hrs on the local
blockdevice, and incrementally copy away those snapshots daily to the remote fileservers.
If I do something silly on a given virtual machine, I can roll back the machine filesystem state to the previous checkpoint and reboot. This has