4 identical nodes | I need some recommendations


Well-Known Member
Nov 13, 2017
I currently have 4 identical dedicated servers, each with:
2x E5-2680v4
192GB of RAM
6x 1.2TB SSD
2x 10Gbps SFP+

My question is:
What is the recommended setup so that the data is replicated at least once (similar to RAID1 or RAID10, ceph shared storage with 3 nodes) and at the same time, I can easily restart one node at a time, without downtime on the hosted KVM machines?

I mention that I use WHMCS and each KVM machine has its own credentials. I tested the new `qm remote-migrate' feature and the migration from one server to another works great even if the servers are not in the same cluster, but apparently there is no possibility to migrate the credentials attached to the migrated VM.
Thank you!
I have a 4-node R630 setup but using SAS drives and no SSDs. The default Ceph replication of 3/2 works fine. Can do maintenance on 1 node while the other 3 still have quorum.

Technically should have a QDevice for production but since this setup is a test cluster, I'm OK with just 4.
  • Like
Reactions: FlorinMarian


The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!