OpenZFS
OpenZFS is a CDDL-licensed open source storage platform that includes the functionality of traditional file systems and volume managers. It provides protection against data corruption, support for high storage capacities, efficient data compression, snapshots and copy-on-write clones, continuous integrity checking and automatic repair, encryption, remote replication with ZFS send-and-receive, and RAID-Z.
Why do we use OpenZFS?
TrueNAS (formerly FreeNAS), the world’s most popular open source storage operating system, uses the ZFS file system to protect all your important data. ZFS is an enterprise-grade, open source file system and volume manager that offers unprecedented flexibility and commitment to data integrity. It is a next-generation file system that removes most, if not all, of the limitations of the older file systems and hardware RAID.
With over 8.5 million downloads, more people have trusted TrueNAS and ZFS to back up their data than any other open source storage software in the world.
Deduplication
Data deduplication is a process that optimizes disk space usage by avoiding duplicate copies of data. Files are scanned and analyzed for duplicates before they are written to disk. This process is resource intensive and can severely impact performance if the system does not have cache devices or sufficient memory available.
Snapshots and Clones
Create and save snapshots of the entire file system on demand, or schedule the process to reduce overhead. In the event of a malware attack or user error, administrators can roll back the system to an uninfected state, and recovery takes seconds, not days. Snapshots can be replicated to another TrueNAS system to create a remote backup in the event of a fire or catastrophic hardware failure. Users can easily manage, delete, copy, and monitor saved snapshots through the web UI.
Writable snapshots or clones are just as easy to create and allow you to restore data and files. Just like regular snapshots, clones are space-efficient, and only changed files take up disk space.
Encryption
Protect your data from prying eyes – TrueNAS is the first and only open source project to offer encryption on ZFS volumes! Encrypted volumes can only be read by a TrueNAS system that holds the master key for that volume. Rest assured knowing that if you have an old hard drive, no one will be able to access the files as long as the master keys are destroyed. For additional security, an optional passphrase can be enabled to add a layer of security to your entire system.
More than just storage
Extend the capabilities of your TrueNAS Mini with a variety of free plugins using TrueNAS CORE or VMs and containers using TrueNAS SCALE to meet a variety of needs. From shared media hosting to private cloud management, TrueNAS makes it possible.
