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Written by Lucas Janin 🇫🇷 🇨🇦 on 2025-01-19 at 17:39

Trying my first #Proxmox cluster!

I didn’t buy new hardware; I’m just installing Proxmox in a VM on my #Synology DS918+ (16 GB of RAM). It's working smoothly, but I will definitely not add many services on this new node. For now, it's just running a second #PiHole.

I would love to test high availability (HA) with 3 nodes one day. I’ll keep learning #Linux and the fantastic world of the #homelab! :-)

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Descendants

Written by :debian: 𝚜𝚎𝚕𝚎𝚊 :opensuse: on 2025-01-19 at 18:06

@lucas3d

So

Synology > Proxmox > VM for Docker containers

The overhead must be gigantic

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Written by :debian: 𝚜𝚎𝚕𝚎𝚊 :opensuse: on 2025-01-19 at 18:09

@lucas3d

Ooooh, I see now

It is just another mode :D

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Written by Lucas Janin 🇫🇷 🇨🇦 on 2025-01-19 at 18:11

@selea

Synology > Proxmox > LXC

Less inception than your estimation :-)

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Written by woe2you on 2025-01-19 at 18:07

@lucas3d Nested virtualisation is less than ideal. Proxmox works best on bare metal.

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Written by Lucas Janin 🇫🇷 🇨🇦 on 2025-01-19 at 18:13

@woe2you My master node is bare metal. But, I did the cluster just for testing and added me secondary pihole.

I have to buy new servers in the future

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Written by woe2you on 2025-01-19 at 19:15

@lucas3d Know that feel. I'm up to 4 main boxes at the moment (pfsense, Proxmox, main TrueNAS and backup TrueNAS) and I'm running out of rack space.

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Written by Lucas Janin 🇫🇷 🇨🇦 on 2025-01-19 at 19:43

@woe2you This looks a fantastic homelab!

Any photo of you set up to share?

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Written by woe2you on 2025-01-19 at 22:13

@lucas3d It's missing a few disk trays and the patch cables are whatever I had lying around but it's a start.

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Written by Lucas Janin 🇫🇷 🇨🇦 on 2025-01-19 at 22:55

@woe2you Nice!

Truly out of rack space :-)

Thanks for sharing.

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Written by Ramon Fincken 🇺🇦 on 2025-01-19 at 19:30

@lucas3d HA needs central always up storage or... Failover storage

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Written by Lucas Janin 🇫🇷 🇨🇦 on 2025-01-19 at 19:46

@ramonfincken This can by my Synology, I suppose. So many things to learn ! :-)

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Written by IceQbe :verified: on 2025-01-19 at 20:23

@lucas3d If you want live migration: make zfs storage on your proxmox nodes and give it the same name on all nodes.

Also: your quorum (third) node doesn't have to be a full node. You can use an external qdevice, this is a nice guide: https://binarypatrick.dev/posts/proxmox-quorum-qdevice/

I have a 918+ (16 GB memory) and stopped using it for virtualization as the cpu isn't that powerfull. I still run docker containers on it 🙂

Intel NUC or some other mini PC's are good proxmox nodes and not expensive if you buy older models.

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Written by Lucas Janin 🇫🇷 🇨🇦 on 2025-01-19 at 21:10

@iceqbe Very interesting! I need to investigate the ZFS storage for live migration.

I wasn't aware that I could achieve high availability with two Proxmox nodes and a Raspberry Pi! I have one in my homelab and am very interested in pursuing this.

My main Proxmox node is a Mini PC Miniforum NAB5. I am currently shopping for a second Mini PC.

Thank you for your advice!

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Written by rockhhock on 2025-01-20 at 12:15

@lucas3d I am also just starting out with my homelab. Quite a collection of applications. May I ask a noob question?

How do you keep track of every system?

For example how do you remember which IP is what service? After a week or so I forget what runs under which IP and I have to look it up in proxmox. Or does your router take care of the IP lookup?

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Written by Lucas Janin 🇫🇷 🇨🇦 on 2025-01-20 at 14:05

@rockhhock Welcome to the world of the #homelab!

I’m using multiple system to avoir to remember ip and port for each service:

1. Use #nginxProxyManager to associate a subdomain for each service (like nodered.xx.xx)

2. Add an Local DNS Records entry in my Pihole for each host (like hassio=x.x.x.x)

3. Add the IP to the Proxmox note for each VM/LXC

4. Create alias bash for ssh to each host (like sshd=‘ssh root@docker’

5. Create a home page for easy access (I’m using https://gethomepage.dev)

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Written by woe2you on 2025-01-20 at 14:07

@lucas3d @rockhhock Another vote for Homepage. Best homelab dashboard out there.

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Written by Lucas Janin 🇫🇷 🇨🇦 on 2025-01-20 at 14:11

@woe2you @rockhhock Agree! It takes some time to configure (all YAML), but it is very powerful.

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Written by rockhhock on 2025-01-20 at 14:11

@lucas3d very helpful list. I have been looking for something like that but did only find a lot of fragments. So your list is a good starting point for me.

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Written by Sebastian Mangelsdorf on 2025-01-21 at 07:44

@lucas3d you can try ha with a quorum device i.e. using a raspi. https://pve.proxmox.com/wiki/Cluster_Manager#_corosync_external_vote_support

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Written by Lucas Janin 🇫🇷 🇨🇦 on 2025-01-21 at 10:31

@cardes Yes, I got the information yesterday form an other reply. I did it! Thanks anyway for replying.

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