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TrueNAS is the brand name for a series of free and open source network attached storage (NAS) operating systems produced by iXsystems, based on FreeBSD and Linux and using the OpenZFS file system. It is licensed under the BSD license and runs on commodity x86-64 hardware.

The TrueNAS range includes free public versions (TrueNAS CORE, formerly known as FreeNAS), commercial versions (TrueNAS Enterprise) and Linux versions (TrueNAS SCALE). It also offers hardware, from small home systems to large 10-petabyte arrays, based on the above versions.

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TrueNAS is the world’s most popular open source storage operating system and the most efficient solution for managing and sharing data over a network. It is the easiest way to create a secure, centralized and easily accessible place for your data. TrueNAS Open Storage provides unified storage for file, block, object and application data.

TrueNAS can be installed on virtually any hardware platform and is suitable for home, business and enterprise applications. There are three editions of TrueNAS that enable a wide range of applications while leveraging common management tools and enabling data transfers.

TrueNAS editions in comparison:

TrueNAS Core

TrueNAS CORE is free and open source and is the successor to the very popular FreeNAS. It runs on virtually any x86_64 system and offers a wide range of features for many users. Plugin applications such as Plex, NextCloud and Asigra allow you to customize the functionality of a system for many use cases.

TrueNAS Enterprise

TrueNAS Enterprise is available as a system with one or two controllers to enable high availability (HA). It can also be delivered with enterprise-grade support from iXsystems. When paired with the TrueNAS M-Series, it scales to 15 GB/s and 20 PB with an uptime of five 9s.


TrueNAS SCALE is the newest member of the TrueNAS family and provides an open source HyperConverged Infrastructure with Linux containers and VMs. TrueNAS SCALE offers the ability to cluster systems and provide scale-out storage with capacities up to hundreds of petabytes.

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