Sizing one Proxmox VM on a 240GB mini PC SSD

The poster says they are new to Proxmox and have a mini PC with a 240GB m.2 SSD. They used to run their homelab on bare metal, but want Proxmox for snapshots/backups, easier migration, and easier testing. They plan to run only one VM and ask how large they can safely make its storage after leaving room for Proxmox itself.

Key points

  • The machine has a 240GB m.2 SSD.
  • The poster wants to run only one VM.
  • They moved toward Proxmox for snapshots/backups, migration, and testing.
  • They ask how much storage can safely be assigned to the VM after Proxmox takes its own space.

Quick term guide

m.2 SSD
A small, fast storage drive often used in mini PCs and laptops.
bare metal
Running an operating system directly on the computer without a virtualization layer.
snapshot
A saved copy of your system's current state that you can restore if something goes wrong later.
backups
Extra copies of data kept in case something breaks or gets deleted.
migration
The process of moving data or tasks from one system or tool to another.
testing
The process of checking that software does what it's supposed to do, usually by running it and looking for errors.
Mac mini
A small desktop computer made by Apple.
home server
A personal computer setup at home used to run services or store files instead of regular daily use.
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