FreeNAS vs OpenMediaVault is now really TrueNAS Community Edition vs OpenMediaVault, because FreeNAS was renamed TrueNAS CORE in 2020 and CORE is no longer under active development. For a mini-PC, mixed disks or under 8 GB of RAM, pick OpenMediaVault 8. For a dedicated x86 box with matched disks where ZFS is the point, pick TrueNAS.
Most FreeNAS vs OMV threads that still rank date from when one side ran FreeBSD with jails and the other ran Debian 9 or 10. Today both run on Linux, both deploy apps with Docker Compose, and both can manage ZFS. The real differences are narrower, and more practical, than the old forum wars suggest.
FreeNAS is TrueNAS now
The TrueNAS 12.0 release notes of 20 October 2020 describe “the unified FreeNAS and TrueNAS release that is renamed to TrueNAS CORE and TrueNAS Enterprise”. That release also moved to OpenZFS 2.0. The Linux line, SCALE, became TrueNAS Community Edition with 25.04 “Fangtooth” on 15 April 2025, when CORE moved into its maintenance phase.
The software status page now says “TrueNAS CORE is no longer under active development” and lists CORE 13.0-U6.8 (14 July 2025) and 13.3-U1.2 (29 April 2025). Its general-use recommendation is 25.10.7, dated 2 September 2026, which the 25.10 version notes put on the Linux 6.12 LTS kernel with ZFS 2.3.9.
On the other side, OpenMediaVault 8 “Synchrony” shipped on 24 December 2025 on Debian 13, for AMD64 and ARM64 only. The OMV release table marks OMV 7 end of life in June 2026, so 8 is the only version worth installing.
How they were compared
This comparison draws on each project’s documentation: the TrueNAS hardware guide, release notes and migration pages, the OpenMediaVault prerequisites and release pages, and the OMV-Extras ZFS plugin guide. No head-to-head benchmark of TrueNAS against OMV on identical hardware was found from ServeTheHome, Phoronix or either project, so none is quoted.
The nearest published data tests the old FreeBSD-versus-Linux argument instead. In a February 2023 speed test, Lawrence Systems benchmarked TrueNAS CORE 13.0-U3.1 over NFS and iSCSI with the Phoronix Test Suite from a client VM, on a Ryzen 5 5600G server with 64 GB and an SSD RAIDZ2 pool, then upgraded the same box in place to SCALE 22.12.0 and reran the tests. Over NFS, 1 MB random reads rose from 770 MB/s on CORE to 1044 MB/s on SCALE, while 4 KB random reads fell from 231 to 180 MB/s. Sync was off throughout.
One community run on an SSD pool settles nothing, but it does retire “FreeBSD is faster” as a default assumption. Every one of those figures also exceeds what gigabit Ethernet carries (125 MB/s before overhead), so on most home networks the wire is the ceiling, not the operating system.
TrueNAS Community Edition vs OpenMediaVault 8
| TrueNAS Community Edition 25.10 | OpenMediaVault 8 | |
|---|---|---|
| Lineage | FreeNAS successor; the Linux line formerly called SCALE | Debian-based NAS project since 2011 |
| Base | Linux appliance, 6.12 LTS kernel | Debian 13 “Trixie” |
| CPU | Any x86_64 Intel or AMD | AMD64 or ARM64 |
| Documented RAM | 8 GB with up to eight drives, plus 1 GB per extra drive | 1 GiB minimum, 4 GiB for novices, 8 GiB best practice |
| Boot device | 20 GB SSD | Its own system drive, never a data disk |
| Filesystems | ZFS | ext4, XFS, Btrfs; ZFS via the OMV-Extras plugin |
| Mismatched disks | Awkward: a ZFS vdev sizes to its smallest member | mergerfs plus SnapRAID via plugins |
| Apps | Docker Compose back end since 24.10 | Docker Compose via the compose plugin |
| Changing the OS | apt disabled; developer mode unsupported | Debian apt, with OMV owning service config |
| Software cost | Free | Free |
FreeNAS-era advice that no longer applies
“You need 1 GB of RAM per TB.” The FreeNAS 11.3 user guide already called that “an old, somewhat overstated guideline” while setting an 8 GiB minimum. The current TrueNAS hardware guide sizes by drive count instead: 8 GB for basic operations with up to eight drives, plus 1 GB for each drive after eight. The capacity-linked figure that survives is deduplication, at a suggested 5 GB per TB, which is reason enough to leave dedup off. For OMV, the ZFS plugin guide says “A system with 4–8 GB of RAM running a home NAS workload is perfectly fine.”
“FreeNAS has jails, OMV has Docker.” TrueNAS 24.10 “Electric Eel” moved its apps to Docker Compose in October 2024, and OMV runs Compose files through its plugin, as covered in the OpenMediaVault Docker Compose setup. A compose file written for one ports to the other with path changes.
“ZFS means FreeNAS.” OMV manages pools, datasets, snapshots and imports through the OMV-Extras plugin. There is a seam, though. The guide strongly recommends the Proxmox kernel, because the Debian backports kernel “can lose ZFS module packages across kernel upgrades”, and ZFS is unsupported on 32-bit systems and ARM boards such as the Raspberry Pi. TrueNAS has no such seam, which is its best argument when ZFS is non-negotiable.
Where each one wins
TrueNAS: ZFS as the whole design. Snapshots, replication, scrubs and dataset properties sit at the centre of the interface rather than in a plugin tab, and since 24.10 RAIDZ pools expand online one drive at a time. The price is the OS. The developer mode page calls TrueNAS “an Open Source Storage appliance, not a standard Linux operating system”, disables apt by default, and withholds support from anyone who turns developer mode on.
OpenMediaVault: hardware tolerance. It runs on ARM64 boards, on 4 GB machines and on whatever mismatched disks are in the drawer, using ext4 on single disks or mergerfs plus SnapRAID for pooled parity. The omv-extras plugin explainer covers which plugins carry that weight, and planning an OpenMediaVault NAS weighs the layouts. Underneath it is ordinary Debian, so a stuck service is a systemd problem with years of existing answers.
OpenMediaVault: small boxes. One system SSD, one or two data disks, a few SMB shares and some containers is an afternoon, not a weekend. TrueNAS manages it too, but its guide wants a 20 GB SSD boot device and says to “avoid using USB-connected hard disks for primary storage”, which closes off the usual mini-PC expansion route.
Neither: backups. Snapshots on the same pool are not a backup, and SnapRAID parity only reflects the last sync. Both systems need a second copy on separate hardware.
Still running FreeNAS? Your two exits
You have two exits: a clean install of TrueNAS Community Edition with your saved configuration uploaded, or OpenMediaVault 8 importing the existing ZFS pool. Staying on FreeNAS means running a FreeBSD release line that TrueNAS no longer develops, which is tolerable for a month and a poor plan for a year.
TrueNAS Community Edition. Bring the box to the latest 13.0 or 13.3 release, download the configuration and a debug file, then clean-install from ISO and upload the config. The migration preparation page says direct UI migration to 24.10 or later “is not supported” and that moving from FreeBSD to Linux “is a one-way operation”. Plugins and jails do not migrate, GELI-encrypted pools must leave GELI first, and VMs on the GRUB bootloader cannot come across. Budget time to rebuild each jail as an app.
OpenMediaVault 8. Install OMV on its own system SSD, add the Proxmox kernel and the ZFS plugin, then bring the pool in from Import/Export. Export it on FreeNAS first; otherwise you need a force import, which the plugin guide describes for cases such as an unclean shutdown on another system. OpenZFS feature flags govern the rest: software must support every active feature on a pool to import it read-write, so newer OpenZFS reading an older FreeNAS pool is the easy direction. The plugin’s Upgrade action enables every supported feature in a “One-way operation”, so leave it alone until the old box is gone for good.
The restore drill is the same for both. Before touching the old system, copy irreplaceable data to a separate disk or machine, then open files from that copy to prove it restores. A migration whose only safety net is the pool being migrated has no safety net.
Which one to pick
Pick OpenMediaVault 8 for the hardware most homelabbers actually own: an N100-class mini-PC or a retired desktop with disks of different sizes. Intel’s N100 specification lists a 16 GB memory maximum, a single memory channel, no ECC support and nine PCIe lanes. That clears TrueNAS’s 8 GB line but leaves little room for a multi-disk pool without the USB enclosures its guide warns against. OMV is content with an ext4 data disk and a USB backup drive attached on a schedule. OMV’s prerequisites list dual-channel RAM as best practice, which an N100 cannot provide; on a small file server that is a footnote, not a dealbreaker. Check the OpenMediaVault system requirements before buying memory.
Pick TrueNAS Community Edition for a dedicated x86 machine with several matched disks on onboard SATA or an HBA, where snapshots and replication are the point. If you already run a FreeNAS pool with replication jobs, it is also the shortest road forward, jails aside.
Pick neither if what you really need is a share someone else maintains. An appliance NAS plus Docker on the mini-PC is a legitimate answer, and the OpenMediaVault vs TrueNAS comparison covers that third option.
For a first build, the pragmatic path is to start on OMV with ext4, learn where your data and containers actually live, and move to ZFS once you own the disks and the backup target to make it pay. ZFS is worth it; it is just rarely the right first project.
FAQ
Is FreeNAS still available?
No. FreeNAS was renamed TrueNAS CORE with the 12.0 release in October 2020, and TrueNAS now states that CORE is no longer under active development. The free, supported successor is TrueNAS Community Edition, formerly SCALE, which runs on Linux. Its recommended general release in October 2026 is 25.10.7; old FreeNAS installs should migrate.
Does TrueNAS need ECC memory?
No, though it is widely recommended. The TrueNAS hardware guide says most users strongly recommend ECC as another data integrity defence, while noting that “Many TrueNAS systems operate every day without ECC RAM.” Whatever you install, test all memory before trusting data to it; the guide says RAM failures usually occur in the first three months.
Can I run OpenMediaVault in a Proxmox VM?
Yes, as a virtual machine but not as a container. The OpenMediaVault prerequisites page says installation in LXC or any other container-based solution is not supported, and that virtual deployment is possible with performance depending on the virtualization type. Give the VM its own system disk and pass the data disks or their controller through.
Is OpenMediaVault good for beginners?
Yes, for a small NAS. OMV’s prerequisites recommend at least 4 GiB of RAM for novice administrators, and the web interface handles shares, users, SMART monitoring and updates without a terminal. The learning curve arrives with plugins: mergerfs, SnapRAID and ZFS each need reading first, as does the rule that the system drive cannot hold shared data.
Related across the network
- Unraid vs Synology (and TrueNAS): Which NAS to Buy — unraidhub.com
- TrueNAS RAM Requirements by Workload — truenasguide.com
