Unraid vs Proxmox for Home Server: Which One to Run

The Unraid vs Proxmox for home server question gets asked as if the two were rivals, and they mostly are not. Unraid is a storage operating system that learned to run Docker containers and virtual machines. Proxmox VE is a hypervisor that expects you to build the storage layer yourself. On one mini-PC with mismatched drives, that difference decides the outcome before any feature list does.

What this comparison is judged on

The workload is the usual single-box home server: a few terabytes of media and backups, a dozen Docker apps, one or two VMs, and a wish to add a drive whenever one goes on sale. Every claim below comes from the two projects’ own documentation, current as of Unraid 7.3.0 and Proxmox VE 9.2. Nothing here is a benchmark.

Spec table

	Unraid 7.3	Proxmox VE 9.2
What it is	NAS first, apps and VMs second	Hypervisor first, storage is yours to build
Licence	Perpetual, paid: $49, $109 or $249	AGPLv3, free; subscriptions optional
Updates	One year, then $36 a year; Lifetime excepted	Free from the no-subscription repository
Storage	Parity array of mixed drive sizes, plus ZFS or BTRFS pools	ZFS, LVM-thin, directory, NFS, CIFS, Ceph
Add one disk later	Yes, up to the size of the smallest parity drive	Only if the layout was designed for it
Containers	Docker on the host, 2,000+ templates	LXC system containers; Docker goes in a VM
VMs	KVM, QEMU, libvirt, VFIO passthrough	KVM plus clustering, live migration, HA
File shares	SMB and NFS in the web UI	Not a NAS; serve files from a guest

Storage is where they diverge

Unraid’s array is the whole reason it exists. The array documentation is blunt about the trade: “Unraid stores each file on a single disk. This means read speeds won’t be boosted by the combined speeds of multiple drives.” In return, up to two parity drives protect disks of any mix of sizes, with one rule: “No disk can be larger than your smallest parity drive.” Adding a disk needs no re-layout, and losing more disks than you have parity costs only the files on those disks. The mechanism is walked through in how Unraid storage works.

Proxmox gives you nothing of the kind. Its ZFS guide covers mirrors, RAIDZ1 through RAIDZ3 and dRAID, says “you need at least 8GB to start,” and adds that the project “strongly recommend[s] the use of high quality ECC RAM.” Unraid has offered ZFS pools since version 7, and its own ZFS page carries the same expansion caveat: “you can’t add a single disk to an existing vdev using the WebGUI.”

The practical reading: three drive sizes bought over four years means Unraid, because it uses all of that capacity without a plan. If they are matched pairs and you want checksums on every block, either works, and Proxmox does it for free.

Apps: Docker on Unraid, Docker-in-a-VM on Proxmox

Most comparisons get this part wrong. Proxmox has containers, but they are LXC system containers, not Docker. The container docs describe them as sharing the host kernel with runtime costs that are “low, usually negligible.” Since 9.1 an LXC container can be created from an OCI image, but the FAQ still says “It is not recommended to run docker directly on your Proxmox VE host” and calls application containers as Proxmox Containers “currently a tech preview.” The supported path for a compose stack is a Debian VM with Docker inside it: one more layer to patch, back up and feed RAM. Proxmox LXC vs VM covers when each fits.

Unraid runs Docker on the host and wraps it in templates. Community Applications is “a curated catalog of over 2,000 free Docker containers and plugins” behind an app-store style Apps tab, with appdata on the cache SSD and media on the array. If your dozen apps are the ones everyone runs, it is an afternoon, and how to set up Unraid Docker containers walks through it. The caveat: once you want a multi-container stack with shared networks and healthchecks, you are writing a compose file by hand anyway.

VMs: both run KVM, only one is built around it

Unraid’s VM documentation lists the same stack Proxmox uses: KVM, QEMU, libvirt and VFIO with IOMMU for passthrough. It asks for at least 4 cores and 8 GB of RAM, with 16 GB recommended. For one Windows VM or Home Assistant OS next to the array, it is fine.

Proxmox is the hypervisor story: clusters, live migration, high availability, and a backup system with stop, suspend and snapshot modes, scheduled jobs and deduplication on Proxmox Backup Server. The 9.2 release added a dynamic load balancer for HA guests, which tells you who the product is for. On an N100 with 16 GB you will admire most of that and never touch it. But none of it is bolted on, and the day you want a second node, Proxmox already knows what one is.

Cost, and the boot drive nobody mentions

Unraid is paid software: $49 for Starter with 6 attached devices, $109 for Unleashed, $249 for Lifetime, all perpetual. The licensing FAQ says Starter and Unleashed include one year of updates, then an optional $36 annual extension, and that without it “you keep your license and can use your current version of Unraid OS indefinitely.” Unlimited means “not limited by the license, but by hardware and OS constraints,” and the array caps at 30 devices, 28 data plus 2 parity. Two SSDs and four drives already fill Starter’s six slots.

Proxmox VE is free under the AGPLv3. The package repositories page says the no-subscription repository “is suitable for testing and for non-production use,” and the community subscription is 120 EUR per socket per year. At home nearly everyone runs the no-subscription repository and clicks through the login nag.

Boot media bites late. Unraid long required a USB flash drive holding the licence, and cheap flash drives die. The 7.3.0 release adds Internal Boot from NVMe, SSD or eMMC and moves new keys to TPM-based licensing “because it is more reliable than flash-based licensing.” If the USB dongle was your reason to skip Unraid, that reason ended in May 2026.

Where each one wins

Unraid wins on mixed-drive storage, time to first app, file shares in the web UI, and being something a household can leave alone. Its failure mode is graceful: lose more disks than parity and you lose those disks, not the pool.

Proxmox wins on virtualization depth, backups, clustering and price, and on not painting you into a corner: underneath it is plain Debian, ZFS and QEMU. Its cost is that “build your own storage” and “Docker goes in a VM” are two jobs Unraid does for you.

What we’d actually run

For one mini-PC with a drawer of odd-sized drives, a media library, a dozen apps and maybe one VM, buy Unraid Unleashed and stop thinking about it. The $109 buys a storage layout no free project matches for that drive mix, and the catalogue turns most self-hosting into clicking Install. Extend in a year or do not; the box keeps working either way.

If VMs are the point, the drives are matched, or a second node is a “when” rather than an “if”, run Proxmox on the no-subscription repository with ZFS mirrors underneath and Docker in one Debian VM. Hardware sizing for either build is in the Unraid hardware guide.

Either way, parity and RAIDZ are not backups. Point a scheduled job at a second box or a bucket before month nine.

Related across the network

• How to Install Proxmox VE: Step-by-Step Install Guide — proxmoxguide.com
• Proxmox ZFS Storage Setup: Zvols, volblocksize, and ARC — proxmoxguide.com
• Proxmox VE Hardware Requirements for a Home Lab Build — proxmoxlab.org
• Best Docker Containers for Your Home Server in 2026 — dockerhomelab.com
• LM Studio on Unraid: Headless Server Setup — lmstudioguide.com