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Its been years, I made my own tool that can all this and more: https://github.com/psy0rz/zfs_autobackup

Please have a look at ZFS autobackup. It can do exactly what you need without extra steps i think: https://github.com/psy0rz/zfs_autobackup

I upgraded the first small cluster of 3 nodes from 5.4 to 6.0 without any issues. zfs trim is running now. I love the new live migration option for VM's! (too bad you'll loose all your zfs snapshots after migration, but you cant have everything. :)

I just zfs send/recv to backup the whole system to another zfs-box. You can find it here: https://github.com/psy0rz/zfs_autobackup#backuping-up-a-proxmox-cluster-with-ha-replication (only works if you also have zfs as rootfs)

Nice, finally TRIM support, ill try upgrading tonight.

Yes finally! I'm needing ZFS TRIM support, since my disks are wearing too fast now. (no trim means writeamplification) I'll wait a few weeks and if there are no huge problems i'll upgrade my cluster. Is it possible to only update corosync clusterwide, and then upgrade one node to 6.0 while the...

can znapzend also pull backups via ssh instead of pushing them via ssh to a remote location? (this is a security concern for our backups)

oh thats pretty awesome!

It uses properties you mean? According to the documentation you have to specify the filesystems you want to backup: https://github.com/oetiker/znapzend/blob/master/doc/znapzendzetup.pod With zfs_autobackup you specify the name of the backup and then you zfs set a property to the filesystems you...

You could also try https://github.com/psy0rz/zfs_autobackup/blob/master/README.md . One of the reasons I wrote it was because I wanted to use properties to select which filesystems to backup. Therefore it doesnt need any configuration files and can just backup any filesystem under a certain...