Reshaping clusters

[Cheffabbio]

Foreword: if this has been discussed elsewhere, please be so kind to just point me to the right post and excuse any possible redundant message

Dears
I have a PVE cluster made of machine A (the original first machine) and machine B (a recent new server). Now, I'd like to: 1) assign machine B the role of cluster master 2) Add a new machine (C) to the cluster from machine B 3) remove machine A for good.

Can you please let me know what is the best practice in this case?

Thanks in advance,
Cheers
Fabio

 

[leesteken]

There is no such thing as a cluster master; all nodes are equal to Proxmox: https://pve.proxmox.com/pve-docs/pve-admin-guide.html#_quorum
Also, two-node cluster are always problematic without a QDevice (lots of threads about this on the forum): https://pve.proxmox.com/pve-docs/pve-admin-guide.html#_corosync_external_vote_support
Just add node C and then remove A (and never ever reconnect it!). You can use any (active and quorate) node to manage the cluster.

 

[Cheffabbio]

There is no such thing as a cluster master; all nodes are equal to Proxmox: https://pve.proxmox.com/pve-docs/pve-admin-guide.html#_quorum
Also, two-node cluster are always problematic without a QDevice (lots of threads about this on the forum): https://pve.proxmox.com/pve-docs/pve-admin-guide.html#_corosync_external_vote_support
Just add node C and then remove A (and never ever reconnect it!). You can use any (active and quorate) node to manage the cluster.

Thanks for the prompt response. Yes, I understand <3 nodes clusters are not "optimal" but I have to keep to 2 my clustered machines number unfortunately and it's too convenient to have them in a cluster rather than 2 independent PVE installations.

I'll follow your input on the necessary steps.
Cheers
Fabio