Unraid is described as 'An operating system for personal and small business use that brings enterprise-class features letting you configure your computer systems to maximize performance and capacity using any combination of applications, VMs, storage devices, and hardware' and is a NAS System in the Backup & Sync category. There are more than 10 alternatives to Unraid for a variety of platforms, including Linux, Windows, Self-Hosted solutions, NVIDIA vGPU and BSD. Most alternatives are NAS Systems and Virtualization Tools. The best alternative is OpenMediaVault, which is both free and Open Source. Other great apps like Unraid are Proxmox Virtual Environment (Freemium, Open Source), TrueNAS (Free, Open Source), VMware vSphere Hypervisor (Paid) and XigmaNAS (Free, Open Source).
OpenMediaVault is the next generation network attached storage (NAS) solution based on Debian Linux. It contains services like SSH, (S)FTP, SMB/CIFS, DAAP media server, RSync, BitTorrent client and many more. It can be enhanced via plugins.
OpenMediaVault vs Unraid opinions
pros, cons and recent comments
OpenMediaVault lacks support for VM orchestration, among probably other things.
TrueNAS (formerly FreeNAS) is an operating system that can be installed on virtually any hardware platform to share data over a network. TrueNAS is the simplest way to create a centralized and easily accessible place for your data.
TrueNAS vs Unraid opinions
Almost everyone thinks TrueNAS is a great alternative to Unraid.
Chemputer Since the previous comment, FreeNAS, now called TrueNAS has added support for VMs and Docker apps (though to setup a Docker environment, you must do so manually.) It has support for a plethora of things that competitors such as unraid does, such as plugins (for instance Plex, Nextcloud, Jenkins, and many others), ZFS, NAS, SMB, iSCSI, etc., and a very nice web GUI.
Positive comment • 8 months ago
Does not have built in functionality of virtual machines and "Docker" apps.
It uses openSUSE Leap as a base with the Btrfs advanced file system. EasyNAS is managed through a web-based interface and offers such features as on-line growing of file systems, snapshots and copy-on-write.
Rockstor is a free and open source NAS (Network Attached Storage) operating system. It’s a software solution and can be installed on commodity hardware or a hypervisor satisfying minimum system requirements.