For backup I created a second VM for every “live VM” in a LXD cluster. I want to backup the ZFS pool from the first VM incrementally to the second, using zfs snapshot/send/receive.
(The second VM is on a different volume backed by a FreeNAS and ZFS, so I can send the disk image incrementally to offsite/DR as well).
I did similar stuff years ago with FreeBSD, all I had o do is copying the jail.conf as well, so, in case of DR, I can use the ZFS volume and start up the jails on the DR side.
I am not sure whether it works the same with LXD containers, because there is more on ZFS than the rootfs.
What I have found so far for remote backup is using tar balls, but that does not work well with incremental backups.
Is this still achievable?