Replacement Server - best practice/method?

[hotwired007]

I am replacing two of my servers with much faster 16 core AMD systems (previously 4 core Intel), whats the best method to do this? I have 5 nodes currently and will be replacing two and removing 1 from the cluster. i need to reassign the current IP addresses to the existing servers.

Whats the best practice to remove the nodes? and rebuild the servers - will it matter if the servers have different names?

 

[tom]

remove/poweroff the old one, then install the new server (use same hostname and IP) and join with the --force flag.

 

[hotwired007]

remove/poweroff the old one, then install the new server (use same hostname and IP) and join with the --force flag.

will it make a difference if i want to give it a different hostname?

 

[tom]

if you provide a new hostname the old will not replaced (you add a new node), therefore you need to delete the old/removed node manually.

 

[dietmar]

if you provide a new hostname the old will not replaced (you add a new node), therefore you need to delete the old/removed node manually.

And move the old VM config files to the correct directory in /etc/pve/nodes/<nodename>

 

[hotwired007]

So walk me through the procedure. I plan on removing Node2 for example:

Node2: migrate all VMs to Node1

Shut down Node2

On Node1: (whats the command to remove the node?)

 

[tom]

use pvecm, see:

man pvecm