You could even just create a cluster and do a migration. I don’t think you need zfs for that, only replication.
Comment on How to prepare for future home server upgrade?
tofu@lemmy.nocturnal.garden 6 days ago
With Proxmox it’s quite easy, you can copy the VM/LXC Backups to the new host (via SCP, NFS or whatever) and restore there. Recently did exactly that.
frongt@lemmy.zip 6 days ago
tofu@lemmy.nocturnal.garden 6 days ago
Should work indeed, but they’d need replicated space. I’m not sure how well that works if the cluster is only designed to be temporary, since removing a productive node from a cluster is a bit risky?
frongt@lemmy.zip 6 days ago
I edited, since it was ambiguous. I think you only need zfs if you want replication, cold migrations should be fine without it.
Removing nodes from clusters is fine. It’s not really encouraged, but if a node fails you have to be able to remove it, so it’s possible.
jonathan7luke@lemmy.zip 6 days ago
I’m not sure how well that works if the cluster is only designed to be temporary, since removing a productive node from a cluster is a bit risky
Good callout. Just did some reading on the concept of maintaining a quorum, which I didn’t know about. Definitely need to be careful if I go with that approach, but it does sound interesting! I’m not entirely opposed to leaving the old laptop as a node and then using it for experimental stuff or maybe running just one specific standalone service on it after moving the critical stuff to the new server.
frongt@lemmy.zip 6 days ago
You don’t need multiple devices and quorum unless you’re using HA. I have two nodes just so I can migrate back and forth when doing updates instead of shutting all the VMs down. No quorum, no HA.
jonathan7luke@lemmy.zip 6 days ago
Sounds pretty straightforward. Thanks for the info!