Clustering questions

[codemaker]

Hi,

I'm a relatively new Proxmox user (I've been running a Proxmox server for about 6 months though). I would like to start clustering my server. I would like to build a cluster with 2 nodes. I understand that some cluster functionalities won't be available (like HA) but I'm a little bit confused about what I will eventually have. Here are my questions:
1- Do the two cluster nodes need to be identical in terms of hardware?
2- Will only HA won't be available with this setup? What about live migration?
3- Could you please point me to the right documentation concerning how to build a 2 nodes cluster for Proxmox V5.0?

Thanks!

 

[Sebastian2000]

Hi,

I'm a relatively new Proxmox user (I've been running a Proxmox server for about 6 months though). I would like to start clustering my server. I would like to build a cluster with 2 nodes. I understand that some cluster functionalities won't be available (like HA) but I'm a little bit confused about what I will eventually have. Here are my questions:
1- Do the two cluster nodes need to be identical in terms of hardware?
2- Will only HA won't be available with this setup? What about live migration?
3- Could you please point me to the right documentation concerning how to build a 2 nodes cluster for Proxmox V5.0?

Thanks!

1 - NO
2 - there is no relation between hardware and proxmox function
3 - https://pve.proxmox.com/wiki/Cluster_Manager

 

[codemaker]

Thanks for your reply. What I've understood so far is that with 2 nodes cluster, VM HA won't be possible, right? The installation process of a 2 nodes cluster is the same as a 3 nodes one or it is different?

 

[Sebastian2000]

Thanks for your reply. What I've understood so far is that with 2 nodes cluster, VM HA won't be possible, right? The installation process of a 2 nodes cluster is the same as a 3 nodes one or it is different?

About HA, I have not used it, so better that other give you an answer about this...
About cluster, you create it on one node, and then, you can add nodes (1, 2 or more)...

 

[fabian]

yes, the setup is the same. but when one of your two nodes goes down (or even only looks like it is down from the other nodes perspective), PVE effectively goes into a 'read-only' mode (to prevent conflicting modifications), and you won't be able to start/stop/create/modify/.. VMs, etc. until both nodes are up again.