Move nodes between two clusters

[SysAx]

Hi,

I have two clusters:

• old_cluster Promox 4.4 with 4 nodes
• new_cluster Proxmox 5.2 with 1 node

I want to migrate all nodes in new_cluster and I know how to do that:

• backup all VMs of a node
• remove node from old_cluster
• upgrade node to Proxmox 5.2
• add node to new_cluster

I just have a question mark about the step after I have removed the node.

I want to keep the same hostname and ip of each node, but as described in the documentation to remove a node from a cluster, there is a warning:
ATTENTION: at this point you must power off the node to be removed and make sure that it will not power on again (in the network) as it is.

How can I proceed without completly reinstalling the node ?

Regards,

Christian.

 

[William Edwards]

How can I proceed without completly reinstalling the node ?

Well, just don't reinstall it. Turn off the old node, change another node's IP address after the VMs have been moved and maybe do an ARP flush.

 

[wolfgang]

Hi,
The best solution is to upgrade the old cluster to the current PVE 5.2
and after the cluster is upgraded add the new node to the cluster.
https://pve.proxmox.com/wiki/Upgrade_from_4.x_to_5.0

 

[SysAx]

Thanks for your replies.

I will follow Wolfgang's solution and upgrade the old cluster.

Best regards,
Christian