Make a Proxmox Cluster and Delete a Proxmox Cluster 

No backups? No mercy! Thanks for your efforts. Appreciate it!

this was a great/concise rundown on how to delete a node but more specifically delete a cluster. i had tried it out for giggles and it turned out to be more of a hassle than anything due to my lack of good hardware, the HA stuff is nice but not necessary until i get some more hardware stood up, so this worked out perfectly for me. thank you sir!

This saved my bacon. Had to do this at work and wasn't completely sure how to proceed w/o blowing something up. Worked like a charm first go-around. Cheers to you sir!

Thank you LoRes, your guide helped me to bring back cluusted that wont turn on VMs.

Thanks sooo much for this. I was compiling knowledge from various blogs after i learned I didn’t need a cluster. Good way to fix without having to redo a hypervisor from scratch. :) yes agreed always back up and probably have a backup of that backup

Thank You, I did the step by step and it worked in my environment.

Thanks! Saved days of work my friend. That's how we are evolving exponentially with the help of other's experience.

perfect walkthrough! Thank you for the expected 1 command too! Working on migration from an old node to a new one with more storage etc., has been very helpful thus far.

thank you so much. His method was surgical. excellent

Great work, thank you a lot; I was struggling after changing my node IP address while it was connected to a cluster; it took a lot of research without getting a solution; your video is a complete solution for this issue. I appreciate your hard work.

Thanks so much, those steps worked fine for me on 7.4-3.

Grate, finally a way to safely add and delete. I'm going to reinstall proxmox i'm stuck with some pev servers in my datacenter tree All vpe servers are deleted from the node still all systems work fine

Thank you!

An interesting follow up to this video would be.....transfering VMs and Containers to another node without the two nodes being members of the cluster. Maybe backup the VMs to an attached external drive or an remote share ( that would be an extra video of toy do it in parts) and then attach that hdd or remote share to the other node and restore (no you can t restore since this node is with no VMs) so scp that VM file to the appropriate storage and path and start it up. Probably it will work

Dude your awesome!

Thank you

Hi there, I followed your video to destroy the cluster, because one of them isn't allways on. All it0s ok, but the cluster continues showing me the 2ond node. What I had to do to make it disapear is to delete folder on /etc/pve/nodes/ This was on a proxmox 7.3-3 version. Now all VM starts ok and the cluster has gone. Thanks!

I disliked the video at first but you pulled me and helped at the end!!!

Is it possible to join those 2 clusters again after delete it ? I want to change the host name, so I need to separate the cluster first, change hostname, then join it again. I dont know if it possible with your delete method ?

life saver

Looks like I’m back in school. Blindly copy past and read what you copy paste 😂😂

just wondering what happened to Lo-Res-Temp node? does it needs re installation or it just works as an independent node on its own?

So how did you enable that lovely dark theme for Proxmox?

PM 7.0-2 - Joining cluster hangs in the GUI, but the action succeeds... did it to me add each of the 4 nodes. weird bug I guess.

3:04 you choose target node ok. ... shouldn t there be an option to select in which storage of the target server the VM is going to placed on? At lest for VMs it gives you the option of target storage as well. Some questions though rise up -in my environment each VM has for nic a virtual bridge which is based upon 2-4 ports with LACP mode. When it will be migrated it will have as a nic the targets server's nic which will be different in many aspects of the source one. Imaging now running your Active Directory Server there and upon restarting it it will see different nic (it's mac address at least) ..... I think for this migration to be achieved successfully both servers need to be exactly identical in storage , network configuration. Not to mention if you have attached to the VM in the source server an extra storage which is being kept in the local server. I wouldnt want to know wha twill happen after migration. Then again I need to because its kinda like what my current configuration is.,... Sorry for the long post ..... but none comes up close of explaining or showing these things even in forums.

HI in my case i also at the end need to remove NODE folder from /etc/pve/nodes before that deleted node still show in GUI

The moment @2m25 where the page looks like it had hung - in fact what has happened is that the node has now joined the cluster and the page you are looking at is now expired as the session is effectively lost as the node is now part of the cluster and by refreshing you iinstigated a new login a with a new session. HTH

I must try your way of waiting. Does Import or domestic work better? Great Video.

After you remove the temp node from the cluster, will you still be able to use that node as a standalone? Or do we need to reinstall Proxmox on that temp node after it has been removed?

It seems pretty strange the fact that gui gives you the opportunity doing things but not undoing them ... so you can del/remove a cluster only from cli? Also, when you migrate VMs to another node, shouldn t be advised (even if you think its obvious) that user must keep CPU type the same between two machines, like KVM64->KVM64 or Qemu->Qemu ... but Host -> Host there problems may rise if both CPUs arent of the same CPU family. Imagine moving a licensed SQL Server 2019 to another Host and when you start it, the no license has been acquired message to be displayed. PS A nice video would be a comparison test between CPU selection (upon VM creation) and the impact it has inside the VM because it has and an important one. Spoiler kvm64

Hello, try do it on diferent vlans on diferent network this its comlicateed

1. backup all vm\ct ...

You may also have to delete the node here: /etc/pve/nodes/ or it might still show in the GUI. Great video though!

Thank you !