this post was submitted on 30 Apr 2026
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Self-hosting Upgrade: planning my first 3-node cluster for deployment in a data center (discuss.livingcartoon.org)
submitted 2 days ago by kiol@discuss.online to c/selfhosted@lemmy.world
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cross-posted from: https://discuss.online/post/39090314

Full layout on my forum here. Basic idea is 3 thin clients that fit within:

  • 1u space requirement
  • Possibly adding 2.5gb nic to the pci-e low profile slots of each hp t740 for Ceph shared storage.
  • Kubernetes and/or Proxmox experiments
    • Adding some sort of remote management via jetkvm or pikvm or similar.
    • Additional expansion no doubt needed for connecting to the three nodes.
+----------------------------------------------------------+
|                    CLUSTER TOTALS                        |
+----------------------+-----------------------------------+
| TOTAL CORES          | 12 physical / 24 threads          |
| TOTAL RAM            | 192 GB DDR4                       |
| TOTAL STORAGE        | 1.5 TB NVMe (local only)          |
| TOTAL NODES          | 3                                 |
| TOTAL NICs           | 3–7 (depending on 4-port NIC)     |
| GPU                  | None                              |
| KVM/IPMI             | None                              |
+----------------------------------------------------------+

All suggestions greatly appreciated! Never done this before, but hoping to save myself from the future hassle of having to drive to the data center... would much rather log in on Wireguard and address things by remotely rebooting, etc.

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[–] fruitycoder@sh.itjust.works 1 points 1 day ago

The pikvm and pikvm switch are really fun tbh