Hyperconverged Supermicro a2sdi-4c-hln4f

This howto aims at describind building a compact homelab hyperconverged chassis with a Supermicro A2SDi-4C-HLN4F. The hypervisor OS will be a Slackware64-current with Qemu/KVM, the storage will be provided by a Truenas core VM (thanks to pci-passthrough) and network orchestrated by a OPNSense VM.

Motivations

Why such a tiny motherboard, especially with a modest 4 cores Intel Atom C3558 ? Let's see the advantages :

• obviously, it's very compact (mini-itx form factor)
• up to 256 GB ECC RDIMM RAM supported
• the CPU (well it's more a SOC actually) has a very low TDP (~ 17W), so no need for a fancy and potentially noisy cooling solution
• the SATA ports are provided by two distinct PCIe lines (see below, very important for pci-passthrough and no need for an additionnal HBA card)