How to Setup a Proxmox Cluster

In this video we show you how to setup a Proxmox Cluster

We cover requirements to be aware of to avoid running into issues

Then show how to create a cluster and add additional hypervisors

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Chapters
00:00 Intro
00:56 Requirements
12:56 Create Cluster
18:50 Add Nodes
22:54 Summary

Credits
LoveLife | Instrumental Prod. Blue Mango | EQMUSEQ.COM by Don Da Vinci

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How to Setup a Proxmox Cluster

[TechTutorialsDavidMcKone]

If you want to learn more about Proxmox VE, this series will help you out

[subpixel]

Thank you for the detailed discussion of CPU requirements and network interface design!

[bhupindersingh]

Precise and Clear and informative.
A Short Quesiton
1. Can a cluster running on three nodes support a Ceph Cluster with its independent from the cluster machines and be attached to the Cluster for shared Block storage and File Store ?
Will it hinder the cluster performance ?
2. What NIC card speed in needed for the Cluster. -- Is the cluster using this NIC for corsync activity and I assume this is not bandwidth hungry?

Thanks in advance for the guidance

[AlonsoVPR]

Thanks for the explanation, I just have a question. What if I want to connect my 3 nodes directly instead of using a switch for the Cluster HA network? Should I use 2 Cluster Networks on each node?

Thanks in advance!

[pandukautsar]

nice vid, have you ever get the ceph cluster with existing cluster? and is it better than if we had 6 node in one cluster with 3 nodes for ceph? i think i need your smart advice, regards

[jimscomments]

Mr. McKone I'm aware that when migrating VMs in a cluster the computers in a cluster should all have the same processors for migration. I have read that the third computer can be set up to just be the third vote but not have VMs migrated to them. I have a HP Thin Client I was going to use as the third computer in the cluster but it has an AMD CPU. Since it's not going to have VMs migrated to it, am I thinking correctly that it will function in the cluster as the third voting system? Very nice videos that you create. They are very helpful.

[jimscomments]

Mr. McKone
I have two NAS servers running TrueNAS and I rsync the files from NAS 1 to NAS 2 as my raid backup. My first Node has a NFS share to NAS 1 set up in preparation to cluster the three PVE computers. I will eventually set up HA as well. The only single point of failure is my NFS share on NAS 1. Is there any way I can have the cluster connect to a redundant NFS share on NAS 2 or is just creating snapshos of the NFS share on NAS 1 and rsync it to NAS 2?

All three videos you made covering the topics discussed in my first paragraph sure were helpful.

[pavlovsky]

I've used 3 (actually 4) dell optiplex's for a proxmox cluster. the 4th box I setup as a dedicated proxmox backup server (pbs).

[ltonchis]

Thanks for the videos Mr. Open Source Matrix Architect 😁

[pavlovsky]

Did you plan to have two 100 nodes when you did the cluster join to demonstrate a common failure?

[a-]

can we joint cluster with different version of proxmox ?
i have proxmox version 6 and 7. can I joint them ?
thanks before

[tinfoil-hat-qcrk]

Can I use this Cluster without an Storage Network Interface?

[zyghom]

I am still thinking: only HA will support failover, while cluster not really. So, apart from common management point: what is the other value added to have a cluster?

[ierosgr]

Now that I ve watched it I have some recommendations/observations / questions to make.
-The part where you are talking about requirements and one of them is the time. What if, the nodes are on different sites in areas with different local time?

-Since Clustering could benefit not only enterprise companies but small/medium as well where the budget is lower for sure (my area of expertise if you ask), that means the quorum pc could be a nuc/rasberry or whatever else low powered machine and even though it will be used just for the votes, a video needs to be made showing what happens when one of the other 2 main servers goes down for good. How would you clear the second's info from the main server (the one on which the cluster created) or is it the same if the server upon which the cluster created to go down like if any other joined node had to be shuttled down for good?

-Also a resonable question and something you could show is, during creation of the cluster certain conf files have been created and updated with new lines like
corosync key to /etc/corosync/authkey
corosync config to /etc/pve/corosync.conf
and probably others I am not aware of right now
Did you check if those lines are also available to the other 2 servers as well?

-Even though the next logical step would be a video for HA, my recommendation would be more info about troubleshooting the cluster. Point is not only being able to create it (you already mentioned this is easy) but being able to maintain and troubleshoot it as well.

[ernestoditerribile]

I have 4 x3650 M5 servers all with 2x Xeon E5-2620 v4 processors, Nvidia Quadro K2000 GPU’s and 192 Gb of 2166 DDR4 RAM. Can I run 1 Kali instance to use all processor cores and GPU’s for bruteforcing clients in my network.

[ierosgr]

Like before even check it because it would be thorough